
Real Time Clock (RTC) IC Clock/Calendar Parallel 28-DIP Module (0.600", 15.24mm)
STMicroelectronics

Real Time Clock (RTC) IC Clock/Calendar 56B I2C, 2-Wire Serial 8-SOIC (0.154", 3.90mm Width)
Analog Devices

Serial RTC with Battery Backup and Trickle Charge, I2C, -40 to 85 degC, 8-Pin SOIC (D), Green (RoHS & no Sb/Br)
Texas Instruments (TI)





