MCP79410-I/SN SO-8 Real-Time Clock

Surface mount (SO-8) real-time clock with battery/capacitor input.
Real-Time Clock/Calendar with EEPROM, SRAM, Unique ID and Battery Switchover
Hours, Minutes, Seconds, Day of Week, Day, Month and Year
Dual alarm with single output
On-Chip Digital Trimming/Calibration:
Range -127 to +127 ppm
Resolution 1 ppm
Programmable Open-Drain Output Control:
CLKOUT with 4 selectable frequencies
Alarm output
64 Bytes SRAM, Battery Backed
1 Kbits EEPROM (128x8):
8 bytes/page
Block/sector write protection
Protect none, 1/4, 1/2 or all of array
Separate 64-Bit Unique ID:
User or factory programmable
Protected area
EUI-48 or EUI-64 MAC address
Custom ID programming
Automatic VCC Switchover to VBAT Backup Supply
Power-Fail Time-Stamp for Battery Switchover