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| Part Number | PT7C4339WEX | PT7C4337WEX | PT7C43390WEX | PT7C4339UEX |
|---|---|---|---|---|
| Manufacturer | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated |
| Product Status | Active | Active | Active | Active |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Features | Alarm, Leap Year, Square Wave Output | Alarm, Leap Year, Square Wave Output | Alarm, Leap Year, Square Wave Output | Alarm, Leap Year, Square Wave Output |
| Memory Size | - | - | - | - |
| 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 | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD |
| Interface | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial |
| Voltage - Supply | 3V ~ 5.5V | 1.8V ~ 5.5V | 1.3V ~ 5.5V | 3V ~ 5.5V |
| Voltage - Supply, Battery | 1.3V ~ 3.7V | - | - | 1.3V ~ 3.7V |
| Current - Timekeeping (Max) | 250µA @ 3V ~ 5.5V | 0.8µA @ 1.3V ~ 1.8V | 0.65µA ~ 0.7µA @ 3V ~ 5V | 250µA @ 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C | -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 |
