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Manufacturer Part Number Manufacturer Series Packaging Type Features Memory Size Interface Voltage Supply Operating Temperature Mounting Type Package Case Supplier Device Package Time Format Date Format Voltage Supply Battery Current Timekeeping Max Lifecycle
Lifecycle
1552498 M41ST84WMQ6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B I²C, 2-Wire Serial 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 16-SOIC (0.154", 3.90mm Width) 16-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 0.5mA @ 2.7V ~ 3.6V Obsolete
1552499 M41ST84YMQ6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B I²C, 2-Wire Serial 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 16-SOIC (0.154", 3.90mm Width) 16-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 1mA @ 4.5V ~ 5.5V Obsolete
1552500 M41ST85WMH6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B I²C, 2-Wire Serial 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 0.5mA @ 2.7V ~ 3.6V Obsolete
1552501 M41ST85WMX6 STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B I²C, 2-Wire Serial 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOIC (0.295", 7.50mm Width) 28-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 0.5mA @ 2.7V ~ 3.6V Obsolete
1552502 M41ST85YMH6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B I²C, 2-Wire Serial 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 1mA @ 4.5V ~ 5.5V Obsolete
1552503 M41ST85YMX6 STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B I²C, 2-Wire Serial 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOIC (0.295", 7.50mm Width) 28-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 1mA @ 4.5V ~ 5.5V Obsolete
1552504 M41ST95WMX6 STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B SPI 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOIC (0.295", 7.50mm Width) 28-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 1.4mA @ 2.7V ~ 3.6V Obsolete
1552505 M41T00M6E STMicroelectronics - Tube Clock/Calendar Leap Year - I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS YY-MM-DD-dd 2.5 V ~ 3.5 V 70µA @ 2V ~ 5.5V Obsolete
1552506 M41T0DS6E STMicroelectronics - Tube Clock/Calendar - - I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) - HH:MM:SS YY-MM-DD-dd - 1.2µA ~ 31µA @ 3V ~ 5.5V Obsolete
1552507 M41T0M6E STMicroelectronics - Tube Clock/Calendar - - I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS YY-MM-DD-dd - 1.2µA ~ 31µA @ 3V ~ 5.5V Obsolete
1552508 M41T11M6E STMicroelectronics - Tube Clock/Calendar Leap Year, NVSRAM 56B I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS YY-MM-DD-dd 2.5 V ~ 3.5 V 70µA @ 2V ~ 5.5V Obsolete
1552509 M41T11MH6E STMicroelectronics - Tube Clock/Calendar Leap Year, NVSRAM 56B I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS YY-MM-DD-dd 2.5 V ~ 3.5 V 70µA @ 2V ~ 5.5V Obsolete
1552510 M41T256YMH7E STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year, NVSRAM 32KB I²C, 2-Wire Serial 4.5 V ~ 5.5 V -25°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 2.5mA @ 4.5V ~ 5.5V Obsolete
1552511 M41T256YMT7E STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year, NVSRAM 32KB I²C, 2-Wire Serial 4.5 V ~ 5.5 V -25°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) 44-SOH HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 2.5mA @ 4.5V ~ 5.5V Obsolete
1552512 M41T315V-85MH6E STMicroelectronics - Tube Phantom Time Chip Leap Year, Supervisor - Serial 3 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (12/24 hr) YY-MM-DD-dd 2.5 V ~ 3.7 V 2mA @ 2.7V ~ 3.6V Obsolete
1552513 M41T56M6E STMicroelectronics - Tube Clock/Calendar Leap Year, NVSRAM 56B I²C, 2-Wire Serial 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 100µA (Typ) @ 4.5V ~ 5.5V Obsolete
1552514 M41T56MH6E STMicroelectronics - Tube Clock/Calendar Leap Year, NVSRAM 56B I²C, 2-Wire Serial 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 100µA (Typ) @ 4.5V ~ 5.5V Obsolete
1552515 M41T80M6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output - I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd - 2.4µA ~ 31µA @ 2V ~ 5.5V Obsolete
1552516 M41T81M6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 100µA @ 2V ~ 5.5V Discontinued
1552517 M41T81MX6 STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 100µA @ 2V ~ 5.5V Obsolete
1552518 M41T94MH6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer 44B SPI 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 1.4mA @ 2.7V ~ 5.5V Obsolete
1552519 M48T02-200PC1 STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 4.75 V ~ 5.5 V 0°C ~ 70°C Through Hole 24-DIP Module (0.600", 15.24mm) 24-PCDIP, CAPHAT® HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.7V ~ 5.5V Obsolete
1552520 M48T08Y-10MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552521 M48T12-200PC1 STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Through Hole 24-DIP Module (0.600", 15.24mm) 24-PCDIP, CAPHAT® HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552522 M48T128Y-70PM1 STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Through Hole 32-DIP Module (0.600", 15.24mm) 32-PMDIP HH:MM:SS (24 hr) YY-MM-DD-dd - 4mA @ 4.5V ~ 5.5V Obsolete
1552523 M48T129V-85PM1 STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Through Hole 32-DIP Module (0.600", 15.24mm) 32-PMDIP HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 3V ~ 3.6V Obsolete
1552524 M48T129Y-70PM1 STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Through Hole 32-DIP Module (0.600", 15.24mm) 32-PMDIP HH:MM:SS (24 hr) YY-MM-DD-dd - 4mA @ 4.5V ~ 5.5V Obsolete
1552525 M48T201V-85MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd 3V 2mA @ 3V ~ 3.6V Obsolete
1552526 M48T201Y-70MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd 3V 3mA @ 4.5V ~ 5.5V Obsolete
1552527 M48T212V-85MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer, Y2K - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd 3V 2mA @ 3V ~ 3.6V Obsolete
1552528 M48T248Y-70PM1 STMicroelectronics Timekeeper® Tube Phantom Time Chip Leap Year - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Through Hole 32-DIP Module (0.600", 15.24mm) 32-PMDIP HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd - 5mA @ 4.5V ~ 5.5V Obsolete
1552529 M48T251Y-70PM1 STMicroelectronics Timekeeper® Tube Phantom Time Chip Leap Year - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Through Hole 32-DIP Module (0.600", 15.24mm) 32-PMDIP HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd - 5mA @ 4.5V ~ 5.5V Obsolete
1552530 M48T254V-10ZA1 STMicroelectronics Timekeeper® Tube Phantom Time Chip Leap Year - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 168-PBGA Module 168-PBGA Module (42.3x42.3) HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd - 3mA @ 3V ~ 3.6V Obsolete
1552531 M48T35AV-10MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 3V ~ 3.6V Obsolete
1552532 M48T35AV-10MH6E STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 3 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 3V ~ 3.6V Obsolete
1552533 M48T35Y-70MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 4.75V ~ 5.5V Obsolete
1552534 M48T35Y-70MH6E STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 4.75V ~ 5.5V Obsolete
1552535 M48T37V-10MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 3V ~ 3.6V Obsolete
1552536 M48T37V-10MH6E STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 3 V ~ 3.6 V -40°C ~ 85°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 3V ~ 3.6V Obsolete
1552537 M48T37Y-70MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552538 M48T37Y-70MH6E STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552539 M48T512Y-70PM1 STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Through Hole 32-DIP Module (0.600", 15.24mm) 32-PMDIP Module HH:MM:SS (24 hr) YY-MM-DD-dd - 4mA @ 4.5V ~ 5.5V Obsolete
1552540 M48T58Y-70MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 28-SOIC (0.337", 8.56mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552541 M48T59Y-70MH1E STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552542 M48T59Y-70MH6E STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552543 M48T59Y-70PC1 STMicroelectronics Timekeeper® Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Through Hole 28-DIP Module (0.600", 15.24mm) 28-PCDIP, CAPHAT® HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552544 M48T86MH1E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output 114B Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (12/24 hr) YY-MM-DD-dd - 15mA @ 4.5V ~ 5.5V Obsolete
1552545 M48T86PC1 STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output 114B Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Through Hole 24-DIP Module (0.600", 15.24mm) 24-PCDIP, CAPHAT® HH:MM:SS (12/24 hr) YY-MM-DD-dd - 15mA @ 4.5V ~ 5.5V Obsolete
1552548 M41T94MQ6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer 44B SPI 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 16-SOIC (0.154", 3.90mm Width) 16-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 1.4mA @ 2.7V ~ 5.5V Obsolete
1552581 M41T50Q6F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output - I²C, 2-Wire Serial 1.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 16-VFQFN Exposed Pad 16-QFN (3x3) HH:MM:SS (24 hr) YY-MM-DD-dd - 0.7µA @ 1.7V ~ 3.6V Obsolete
1552587 M48T212V-85MH1F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer, Y2K - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd 3V 2mA @ 3V ~ 3.6V Obsolete
1552589 M48T35AV-10MH6F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Leap Year - Parallel 3 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 3V ~ 3.6V Obsolete
1552591 M48T35Y-70MH6F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Leap Year - Parallel 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 4.75V ~ 5.5V Obsolete
1552593 M48T37V-10MH6F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 3 V ~ 3.6 V -40°C ~ 85°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 3V ~ 3.6V Obsolete
1552595 M48T37Y-70MH6F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552597 M48T59Y-70MH1F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Obsolete
1552599 M48T86MH1F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output 114B Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (12/24 hr) YY-MM-DD-dd - 15mA @ 4.5V ~ 5.5V Obsolete
1552601 M41T56MH6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Leap Year, NVSRAM 56B I²C, 2-Wire Serial 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 100µA (Typ) @ 4.5V ~ 5.5V Obsolete
1552603 M41T256YMH7F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Leap Year, NVSRAM 32KB I²C, 2-Wire Serial 4.5 V ~ 5.5 V -25°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 2.5mA @ 4.5V ~ 5.5V Obsolete
1552605 M41T256YMT7F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Leap Year, NVSRAM 32KB I²C, 2-Wire Serial 4.5 V ~ 5.5 V -25°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) 44-SOH HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 2.5mA @ 4.5V ~ 5.5V Obsolete
1552607 M41ST84WMQ6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B I²C, 2-Wire Serial 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 16-SOIC (0.154", 3.90mm Width) 16-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 0.5mA @ 2.7V ~ 3.6V Obsolete
1552668 M41ST87WMX6 STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 128B I²C, 2-Wire Serial 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOIC (0.295", 7.50mm Width) 28-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.6 V 0.5mA @ 2.7V ~ 3.6V Obsolete
1552669 M41ST87YMX6TR STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 128B I²C, 2-Wire Serial 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOIC (0.295", 7.50mm Width) 28-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 5.5 V 1mA @ 4.5V ~ 5.5V Obsolete
1552670 M41ST95WMX6TR STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B SPI 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOIC (0.295", 7.50mm Width) 28-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 1.4mA @ 2.7V ~ 3.6V Obsolete
1552671 M41T00SM6E STMicroelectronics - Tube Clock/Calendar Leap Year - I²C, 2-Wire Serial 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS (24 hr) YY-MM-DD-dd 2 V ~ 3.5 V 70µA @ 2.7V ~ 5.5V Obsolete
1552672 M41T0DS6F STMicroelectronics - Tube Clock/Calendar - - I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) - HH:MM:SS YY-MM-DD-dd - 1.2µA ~ 31µA @ 3V ~ 5.5V Obsolete
1552673 M41T81SM6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 3.5 V 100µA @ 2.7V ~ 5.5V Obsolete
1552862 M41T00AUDD1F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Audio, Leap Year, Trickle-Charger - I²C, 2-Wire Serial 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 16-VFDFN Exposed Pad 16-DFN (5x4) HH:MM:SS (24 hr) YY-MM-DD-dd 1.7 V ~ 3.6 V 14.3mA @ 3V ~ 3.6V Discontinued
1552865 M41T60Q6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Leap Year - I²C, 2-Wire Serial 1.3 V ~ 4.4 V -40°C ~ 85°C Surface Mount 16-VFQFN Exposed Pad 16-QFN (3x3) HH:MM:SS (24 hr) YY-MM-DD-dd - 0.7µA ~ 0.95µA @ 3.6V ~ 4.4V Active
1552868 M41T66Q6F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1.5 V ~ 4.4 V -40°C ~ 85°C Surface Mount 16-VFQFN Exposed Pad 16-QFN (3x3) HH:MM:SS:hh (24 hr) YY-MM-DD-dd - 0.9µA ~ 1.1µA @ 1.5V ~ 4.4V Active
1552871 M41T64Q6F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1.3 V ~ 4.4 V -40°C ~ 85°C Surface Mount 16-VFQFN Exposed Pad 16-QFN (3x3) HH:MM:SS:hh (24 hr) YY-MM-DD-dd - 0.7µA ~ 0.95µA @ 1.3V ~ 4.4V Discontinued
1552886 M41T82ZM6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 2.38 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Active
1552889 M41T82SM6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 3 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Active
1552903 M41T83RQA6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 16-VQFN Exposed Pad 16-QFN (4x4) HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Active
1552906 M41T93ZQA6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer 7B SPI 2.38 V ~ 5.5 V -40°C ~ 85°C Surface Mount 16-VQFN Exposed Pad 16-QFN (4x4) HH:MM:SS:hh (24 hr) YY-MM-DD-dd 1.8 V ~ 5.5 V 10µA @ 5.5V Active
1552909 M41T93SQA6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer 7B SPI 3 V ~ 5.5 V -40°C ~ 85°C Surface Mount 16-VQFN Exposed Pad 16-QFN (4x4) HH:MM:SS:hh (24 hr) YY-MM-DD-dd 1.8 V ~ 5.5 V 10µA @ 5.5V Active
1552912 M41T83ZQA6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 2.38 V ~ 5.5 V -40°C ~ 85°C Surface Mount 16-VQFN Exposed Pad 16-QFN (4x4) HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Active
1552960 M41T83ZMY6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 2.38 V ~ 5.5 V -40°C ~ 85°C Surface Mount 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Active
1552963 M41T93ZMY6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer 7B SPI 2.38 V ~ 5.5 V -40°C ~ 85°C Surface Mount 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 1.8 V ~ 5.5 V 10µA @ 5.5V Active
1553009 M41T11MH6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Leap Year, NVSRAM 56B I²C, 2-Wire Serial 2 V ~ 5.5 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS YY-MM-DD-dd 2.5 V ~ 3.5 V 70µA @ 2V ~ 5.5V Active
1553027 M41ST87WSS6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 128B I²C, 2-Wire Serial 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 20-SSOP (0.209", 5.30mm Width) 20-SSOP HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.6 V 0.5mA @ 2.7V ~ 3.6V Active
1553042 M41ST85WMH6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B I²C, 2-Wire Serial 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 0.5mA @ 2.7V ~ 3.6V Active
1553057 M48T201Y-70MH1F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd 3V 3mA @ 4.5V ~ 5.5V Active
1553061 M48T201V-85MH1F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd 3V 2mA @ 3V ~ 3.6V Active
1553064 M48T37V-10MH1F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 3V ~ 3.6V Active
1553067 M48T37Y-70MH1F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - Parallel 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT 44-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 3mA @ 4.5V ~ 5.5V Active
1553070 M48T35AV-10MH1F STMicroelectronics Timekeeper® Tape & Reel (TR) Clock/Calendar Leap Year - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 3V ~ 3.6V Active
1553104 M48T35AV-10PC1 STMicroelectronics Timekeeper® Tube Clock/Calendar Leap Year - Parallel 3 V ~ 3.6 V 0°C ~ 70°C Through Hole 28-DIP Module (0.600", 15.24mm) 28-PCDIP, CAPHAT® HH:MM:SS (24 hr) YY-MM-DD-dd - 2mA @ 3V ~ 3.6V Active
1553200 M41T315V-85MH6F STMicroelectronics - Tape & Reel (TR) Phantom Time Chip Leap Year, Supervisor - Serial 3 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS (12/24 hr) YY-MM-DD-dd 2.5 V ~ 3.7 V 2mA @ 2.7V ~ 3.6V Obsolete
1553308 M41T56C64MY6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar EEPROM, Leap Year, NVSRAM 56B, 8KB I²C, 2-Wire Serial 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-SOX HH:MM:SS YY-MM-DD-dd 2.5 V ~ 3.5 V 100µA (Typ) @ 4.5V ~ 5.5V Obsolete
1553355 M41T82RM6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Obsolete
1553360 M41T00SC64MY6F STMicroelectronics - Tape & Reel (TR) Clock/Calendar EEPROM, Leap Year 8KB I²C, 2-Wire Serial 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-SOX HH:MM:SS YY-MM-DD-dd 2.5 V ~ 35 V 100µA (Typ) @ 2.7V ~ 5.5V Obsolete
1553369 M41ST85WMH6TR STMicroelectronics - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B I²C, 2-Wire Serial 2.7 V ~ 3.6 V -40°C ~ 85°C Surface Mount 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets 28-SOH HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2.5 V ~ 3.5 V 0.5mA @ 2.7V ~ 3.6V Obsolete
1553370 M41T56C64MY6E STMicroelectronics - Tube Clock/Calendar EEPROM, Leap Year, NVSRAM 56B, 8KB I²C, 2-Wire Serial 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-SOX HH:MM:SS YY-MM-DD-dd 2.5 V ~ 3.5 V 100µA (Typ) @ 4.5V ~ 5.5V Obsolete
1553371 M41T81SMY6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 3.5 V 100µA @ 2.7V ~ 5.5V Obsolete
1553384 M41T00SC64MY6E STMicroelectronics - Tube Clock/Calendar EEPROM, Leap Year 8KB I²C, 2-Wire Serial 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-SOX HH:MM:SS YY-MM-DD-dd 2.5 V ~ 35 V 100µA (Typ) @ 2.7V ~ 5.5V Obsolete
1553385 M41T82SM6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 3 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Obsolete
1553386 M41T82ZM6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 2.38 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Obsolete
1553387 M41T83RMY6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 2.7 V ~ 5.5 V -40°C ~ 85°C Surface Mount 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Obsolete
1553388 M41T83SMY6E STMicroelectronics - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer 7B I²C, 2-Wire Serial 3 V ~ 5.5 V -40°C ~ 85°C Surface Mount 18-SOX, 18-SOIC with Crystal (7.5mm Width) 18-SOX HH:MM:SS:hh (24 hr) YY-MM-DD-dd 2 V ~ 5.5 V 10µA @ 5.5V Obsolete

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