Analog Devices DS1556WP-120IND+ 实时时钟 1M，非易失性，符合Y2K标准的时间保持器

Function: Calendar, Clock, NV Timekeeping RAM, Watchdog Timekeeper

Date Format: YY-MM-DD-dd

Time Format: HH:MM:SS (24 hr)

Mounting Style: SMD/SMT

RTC Memory Size: 128 kB

RTC Bus Interface: Parallel

Moisture Sensitive: Yes

Supply Voltage - Max: 3.63 V

Supply Voltage - Min: 2.97 V

Battery Backup Switching: Backup Switching

Maximum Operating Temperature: + 85 C

Minimum Operating Temperature: - 40 C