| Vcc(V)： | 2.5~6 |
| Voltage-Supply,Battery(V)： | 1~6 |
| Time Format： | HH:MM:SS(12/24 Hours) |
| Date Format： | YY-MM-DD-dd |
| Interface： | I2C |
| Features： | Alarm, interrupt and timing functions |
| Package/Temperature(℃)： | PDIP-8/-40~85 |
| Description： | Clock and calendar with 240 x 8bit RAM,I2C |