參數	數值
規格書	數據手冊下載
Package	20SOIC W
Time Format	HH:MM:SS
Date Format	DW:DM:M:Y
Function	Clock/Calendar/Alarm/Interrupt/Battery Backup
Operating Supply Voltage	3.3|5 V
Bus Type	Serial (2-Wire, I2C)
User RAM	128 Byte
Operating Temperature	-40 to 85 °C