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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
1552582 PCF8563T/F4,112 NXP Semiconductors - Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.8 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 - 0.6µA ~ 0.75µA @ 2V ~ 5V Discontinued
1552583 PCF8593T/1,112 NXP Semiconductors - Tube Clock/Calendar Alarm, NVSRAM 8B I²C, 2-Wire Serial 2.5 V ~ 6 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd - 8µA ~ 15µA @ 2V ~ 5V Discontinued
1552764 PCF8523TS/1,112 NXP Semiconductors - Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount 14-TSSOP (0.173", 4.40mm Width) 14-TSSOP HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 5.5 V 0.5µA @ 2V ~ 5V Last Time Buy
1552834 PCF85263ATT1/AJ NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TSSOP HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 0.9 V ~ 5.5 V 0.885µA @ 3.3V Active
1552846 PCF8563BS/4,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 5.5 V -40°C ~ 85°C Surface Mount 10-VFDFN Exposed Pad 10-HVSON (3x3) HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Active
1552849 PCF2123BS/1,518 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - SPI 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount 16-VFQFN Exposed Pad 16-HVQFN (3x3) HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.33µA ~ 0.38µA @ 2V ~ 5V Active
1552852 PCF2123BS/1,512 NXP Semiconductors - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - SPI 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount 16-VFQFN Exposed Pad 16-HVQFN (3x3) HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.33µA ~ 0.38µA @ 2V ~ 5V Discontinued
1552853 PCF8523TS/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount 14-TSSOP (0.173", 4.40mm Width) 14-TSSOP HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 5.5 V 0.5µA @ 2V ~ 5V Active
1552874 PCA21125T/Q900/1,1 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - SPI 1.6 V ~ 5.5 V -40°C ~ 125°C Surface Mount 14-TSSOP (0.173", 4.40mm Width) 14-TSSOP HH:MM:SS (12/24 hr) YY-MM-DD-dd - 30.3µA @ 2V ~ 5V Active
1552954 PCF2127AT/2Y NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer 512B I²C, 2-Wire Serial 1.8 V ~ 4.2 V -40°C ~ 85°C Surface Mount 20-SOIC (0.295", 7.50mm Width) 20-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 4.2 V 1.5µA @ 3.3V Active
1552966 PCF2127T/2Y NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer 512B I²C, 2-Wire Serial 1.8 V ~ 4.2 V -40°C ~ 85°C Surface Mount 16-SOIC (0.295", 7.50mm Width) 16-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 4.2 V 1.5µA @ 3.3V Active
1553155 PCF85063AT/AY NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.6µA @ 3.3V Active
1553165 PCF85363ATT1/AJ NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TSSOP HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 0.9 V ~ 5.5 V 0.885µA @ 3.3V Active
1553376 PCA8565BS/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 5.5 V -40°C ~ 125°C Surface Mount 10-VFDFN Exposed Pad 10-HVSON (3x3) HH:MM:SS (24 hr) YY-MM-DD-dd - 1.2µA ~ 5µA @ 2V ~ 5V Obsolete
1553377 PCF8583BS,518 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, NVSRAM, Square Wave Output 240B I²C, 2-Wire Serial 2.5 V ~ 6 V -40°C ~ 85°C Surface Mount 20-VQFN Exposed Pad 20-HVQFN (5x5) HH:MM:SS:hh (12/24 hr) YY-MM-DD - 10µA ~ 50µA @ 1V ~ 5V Obsolete
1553403 PCA2125TS/1,112 NXP Semiconductors - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - SPI 1.6 V ~ 5.5 V -40°C ~ 125°C Surface Mount 14-TSSOP (0.173", 4.40mm Width) 14-TSSOP HH:MM:SS (12/24 hr) YY-MM-DD-dd - 1.8µA @ 2V ~ 5V Obsolete
1553404 PCA2125TS/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - SPI 1.6 V ~ 5.5 V -40°C ~ 125°C Surface Mount 14-TSSOP (0.173", 4.40mm Width) 14-TSSOP HH:MM:SS (12/24 hr) YY-MM-DD-dd - 1.8µA @ 2V ~ 5V Obsolete
1553464 PCF2129AT/1,512 NXP Semiconductors - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 4.2 V -40°C ~ 85°C Surface Mount 20-SOIC (0.295", 7.50mm Width) 20-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 4.2 V 1.5µA @ 3.3V Obsolete
1553465 PCF2127AT/1,512 NXP Semiconductors - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer 512B I²C, 2-Wire Serial 1.8 V ~ 4.2 V -40°C ~ 85°C Surface Mount 20-SOIC (0.295", 7.50mm Width) 20-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 4.2 V 1.5µA @ 3.3V Obsolete
1553466 PCF2129AT/1,518 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 4.2 V -40°C ~ 85°C Surface Mount 20-SOIC (0.295", 7.50mm Width) 20-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 4.2 V 1.5µA @ 3.3V Obsolete
1553467 PCF2127AT/1,518 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer 512B I²C, 2-Wire Serial 1.8 V ~ 4.2 V -40°C ~ 85°C Surface Mount 20-SOIC (0.295", 7.50mm Width) 20-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 4.2 V 1.5µA @ 3.3V Obsolete
1553468 PCF8564ACX9/1,005 NXP Semiconductors - Bulk Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1 V ~ 5.5 V -40°C ~ 85°C Surface Mount Die Die HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Obsolete
1553471 PCF8564ACX9/B/1,02 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1 V ~ 5.5 V -40°C ~ 85°C Surface Mount Die Die HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Obsolete
1553551 PCA8802CX8/B/1,027 NXP Semiconductors - Tape & Reel (TR) Binary Counter Square Wave Output, Unique ID - I²C, 2-Wire Serial 1.6 V ~ 5.5 V -40°C ~ 85°C - Die Die Binary Binary - 0.4µA @ 1.6V ~ 5.5V Obsolete
1553592 PCA8802U/2AA/1,026 NXP Semiconductors - Tray - Waffle Binary Counter Square Wave Output, Unique ID - I²C, 2-Wire Serial 1.6 V ~ 5.5 V -40°C ~ 85°C - Die Die Binary Binary - 0.4µA @ 1.6V ~ 5.5V Obsolete
1553593 PCA8802UG/12KB/1,0 NXP Semiconductors - Bulk Binary Counter Square Wave Output, Unique ID - I²C, 2-Wire Serial 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-XFBGA, WLCSP 8-WLCSP Binary Binary - 0.4µA @ 1.6V ~ 5.5V Obsolete
1553594 PCF8564AU/5GC/1,01 NXP Semiconductors - Bulk Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1 V ~ 5.5 V -40°C ~ 85°C Surface Mount Die Die HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Obsolete
1553623 PCF8564AU/5GB/1,01 NXP Semiconductors - Bulk Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1 V ~ 5.5 V -40°C ~ 85°C Surface Mount Die Die HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Active
1553624 PCF8564AU/5BB/1,01 NXP Semiconductors - Bulk Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1 V ~ 5.5 V -40°C ~ 85°C Surface Mount Die Die HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Active
1553625 PCF2123U/12HA/1,00 NXP Semiconductors - Bulk Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - SPI 1.6 V ~ 5.5 V -40°C ~ 85°C - Die Die HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.33µA ~ 0.38µA @ 2V ~ 5V Active
1553626 PCF8564AU/10AB/1,0 NXP Semiconductors - Bulk Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1 V ~ 5.5 V -40°C ~ 85°C Surface Mount Die Die HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Active
1553627 PCF85063BTL/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output - SPI 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 10-XFDFN Exposed Pad 10-DFN (2.6x2.6) HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.6µA @ 3.3V Active
1553630 PCF8564AUG/12HB/1V NXP Semiconductors - Tray Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1 V ~ 5.5 V -40°C ~ 85°C Surface Mount Die Die HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Active
1553631 PCF85063AT/AAZ NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.6µA @ 3.3V Active
1553632 PCF8523AUG/HAV NXP Semiconductors * - - - - - - - - - - - - - - Active
1553633 PCF2123U/10AA/1,00 NXP Semiconductors - Bulk Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - SPI 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount Die Die HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.33µA ~ 0.38µA @ 2V ~ 5V Active
1553634 PCA85063ATT/AJ NXP Semiconductors Automotive, AEC-Q100 Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 105°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP HH:MM:SS (12/24 hr) YY-MM-DD-dd - 1.8µA @ 5V Active
1553639 PCA8565AU/5BB/1,01 NXP Semiconductors Automotive, AEC-Q100 Bulk Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 5.5 V -40°C ~ 125°C Surface Mount Die Die HH:MM:SS (24 hr) YY-MM-DD-dd - 0.9µA ~ 1.8µA @ 2V ~ 5V Active
1554049 PCF8583P/F5,112 NXP Semiconductors - Tube Clock/Calendar Alarm, NVSRAM, Square Wave Output 240B I²C, 2-Wire Serial 2.5 V ~ 6 V -40°C ~ 85°C Through Hole 8-DIP (0.300", 7.62mm) 8-DIP HH:MM:SS:hh (12/24 hr) YY-MM-DD - 10µA ~ 50µA @ 1V ~ 5V Obsolete
1554050 PCF8593P,112 NXP Semiconductors - Tube Clock/Calendar Alarm, NVSRAM 8B I²C, 2-Wire Serial 2.5 V ~ 6 V -40°C ~ 85°C Through Hole 8-DIP (0.300", 7.62mm) 8-DIP HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd - 8µA ~ 15µA @ 2V ~ 5V Obsolete
1554051 PCF8563P/F4,112 NXP Semiconductors - Tube Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 5.5 V -40°C ~ 85°C Through Hole 8-DIP (0.300", 7.62mm) 8-DIP HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Obsolete
1554125 PCF85063TP/1Z NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-WFDFN Exposed Pad 8-HWSON (2x3) HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.6µA @ 3.3V Active
1554128 PCF8563T/5,518 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.8 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 - 0.6µA ~ 0.75µA @ 2V ~ 5V Active
1554131 PCF85263ATL/AX NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 10-XFDFN Exposed Pad 10-DFN (2.6x2.6) HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 0.9 V ~ 5.5 V 0.885µA @ 3.3V Active
1554134 PCF2123TS/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - SPI 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount 14-TSSOP (0.173", 4.40mm Width) 14-TSSOP HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.33µA ~ 0.38µA @ 2V ~ 5V Active
1554137 PCF2123TS/1,112 NXP Semiconductors - Tube Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - SPI 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount 14-TSSOP (0.173", 4.40mm Width) 14-TSSOP HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.33µA ~ 0.38µA @ 2V ~ 5V Active
1554138 PCF8563TS/5,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Active
1554141 PCF85363ATL/AX NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 10-XFDFN Exposed Pad 10-DFN (2.6x2.6) HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 0.9 V ~ 5.5 V 0.885µA @ 3.3V Active
1554144 PCF8523TK/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-VDFN Exposed Pad 8-HVSON (4x4) HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 5.5 V 0.5µA @ 2V ~ 5V Active
1554147 PCF8523T/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.6 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 5.5 V 0.5µA @ 2V ~ 5V Active
1554150 PCF8563T/F4,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.8 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 - 0.6µA ~ 0.75µA @ 2V ~ 5V Active
1554156 PCA8565TS/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 5.5 V -40°C ~ 125°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP HH:MM:SS (24 hr) YY-MM-DD-dd - 1.2µA ~ 5µA @ 2V ~ 5V Active
1554222 PCF8593T/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, NVSRAM 8B I²C, 2-Wire Serial 2.5 V ~ 6 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd - 8µA ~ 15µA @ 2V ~ 5V Active
1554225 PCF8583T/5,518 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, NVSRAM, Square Wave Output 240B I²C, 2-Wire Serial 2.5 V ~ 6 V -40°C ~ 85°C Surface Mount 8-SOIC (0.295", 7.50mm Width) 8-SO HH:MM:SS:hh (12/24 hr) YY-MM-DD - 10µA ~ 50µA @ 1V ~ 5V Active
1554228 PCF8583T/5,512 NXP Semiconductors - Tube Clock/Calendar Alarm, NVSRAM, Square Wave Output 240B I²C, 2-Wire Serial 2.5 V ~ 6 V -40°C ~ 85°C Surface Mount 8-SOIC (0.295", 7.50mm Width) 8-SO HH:MM:SS:hh (12/24 hr) YY-MM-DD - 10µA ~ 50µA @ 1V ~ 5V Obsolete
1554232 PCF2129AT/2,518 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 4.2 V -40°C ~ 85°C Surface Mount 20-SOIC (0.295", 7.50mm Width) 20-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 4.2 V 1.5µA @ 3.3V Active
1554274 PCF2129T/2,518 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 4.2 V -40°C ~ 85°C Surface Mount 16-SOIC (0.295", 7.50mm Width) 16-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 4.2 V 1.5µA @ 3.3V Active
1554302 PCA2129T/Q900/2,51 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 4.2 V -40°C ~ 85°C Surface Mount 16-SOIC (0.295", 7.50mm Width) 16-SO HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.8 V ~ 4.2 V 1.5µA @ 3.3V Active
1554446 PCF85063ATL/1,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 10-XFDFN Exposed Pad 10-DFN (2.6x2.6) HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.6µA @ 3.3V Active
1554449 PCF85063ATT/AJ NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Square Wave Output - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP HH:MM:SS (12/24 hr) YY-MM-DD-dd - 0.6µA @ 3.3V Active
1554452 PCF85263AT/AJ NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 0.9 V ~ 5.5 V 0.885µA @ 3.3V Active
1554455 PCF85263ATT/AJ NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 0.9 V ~ 5.5 V 0.885µA @ 3.3V Active
1554458 PCF85363ATT/AJ NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 0.9 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 0.9 V ~ 5.5 V 0.885µA @ 3.3V Active
1554468 PCF8563TS/4,118 NXP Semiconductors - Tape & Reel (TR) Clock/Calendar Alarm, Leap Year, Watchdog Timer - I²C, 2-Wire Serial 1.8 V ~ 5.5 V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP HH:MM:SS (24 hr) YY-MM-DD-dd - 0.6µA ~ 0.75µA @ 2V ~ 5V Active

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