| Part Number | ISL12023IVZ | ISL12025IVZ | 
|---|---|---|
| Manufacturer | Intersil | Intersil | 
| Category | Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Type | Clock/Calendar | Clock/Calendar | 
| Features | Alarm, Daylight Savings, Leap Year, SRAM | Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer | 
| Memory Size | 128B | - | 
| Time Format | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | 
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | 
| Interface | I²C, 2-Wire Serial | I²C, 2-Wire Serial | 
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 
| Voltage - Supply, Battery | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 
| Current - Timekeeping (Max) | 14µA ~ 15µA @ 3V ~ 5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | 8-TSSOP (0.173", 4.40mm Width) | 
| Supplier Device Package | 14-TSSOP | 8-TSSOP |