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| Part Number | PT7C4302AWEX | PT7C4302WEX | PT7C4372AWEX | PT7C4302AUEX |
|---|---|---|---|---|
| Manufacturer | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated |
| Product Status | Active | Active | Obsolete | Active |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Features | Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | Alarm, Leap Year | Leap Year, NVSRAM, Square Wave Output, Trickle-Charger |
| Memory Size | 31B | 31B | - | 31B |
| Time Format | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd |
| Interface | 3-Wire Serial | 3-Wire Serial | I²C, 2-Wire Serial | 3-Wire Serial |
| Voltage - Supply | 1.2V ~ 5.5V | 1.2V ~ 5.5V | 1.8V ~ 6V | 1.2V ~ 5.5V |
| Voltage - Supply, Battery | 1.2V ~ 5.5V | 1.5V ~ 5.5V | - | 1.2V ~ 5.5V |
| Current - Timekeeping (Max) | 25.3µA ~ 81µA @ 2V ~ 5V | 25.3µA ~ 81µA @ 2V ~ 5V | 0.8µA @ 3V | 25.3µA ~ 81µA @ 2V ~ 5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-MSOP |
