Microchip Technology MCP7940N-E/MS 实时时钟 I2C GP RTCC 64B SRAM，EXT

Function: Alarm, Calendar, Clock

Date Format: YY-MM-DD-dd

Time Format: HH:MM:SS:hh (12 hr, 24 hr)

Unit Weight: 140 mg

Mounting Style: SMD/SMT

RTC Memory Size: 64 B

RTC Bus Interface: Serial 2-Wire, I2C

Moisture Sensitive: Yes

Supply Voltage - Max: 5.5 V

Supply Voltage - Min: 1.8 V

Battery Backup Switching: Backup Switching

Maximum Operating Temperature: + 125 C

Minimum Operating Temperature: - 40 C