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S-35399A02 - 2-WIRE REAL-TIME CLOCK
HM6818A - Real Time Clock Plus RAM
RTC6591 - (RTC-65xx) REAL TIME CLOCK MODULE
RJ5C15 - REAL-TIME CLOCK
M41T0 - Serial real-time clock
MCP795W20 - Battery-Backed SPI Real-Time Clock/Calendar
RTC-4543SA - SERIAL-INTERFACE REAL TIME CLOCK MODULE
ADA1210 - Advanced Industrial Control boards User Manual
DS12885 - Real-Time Clock
X1227 - Real Time Clock/Calendar/CPU Supervisor with EEPROM
RS5C313 - ULTRA-COMPACT REAL-TIME CLOCK IC
MCCS156818B - (MCCS146818B / MCCS156818B) Real Time Clock Plus SRAM
MSM6542-03 - (MSM6542-01/-02/-03) REAL TIME CLOCK WITH PERIODIC AND ALARM OUTPUT
DS1629 - 2-Wire Digital Thermometer and Real-Time Clock
DS1501 - Y2K-Compliant Watchdog Real-Time Clocks
HS9-RTX2010RH-8 - Radiation Hardened Real Time Express Microcontroller
NJU6355 - SERIAL I/O REAL TIME CLOCK
MSM6542-02 - (MSM6542-01/-02/-03) REAL TIME CLOCK WITH PERIODIC AND ALARM OUTPUT
RX-8564LC - REAL TIME CLOCK MODULE
HT1382 - I2C/3-Wire Real Time Clock