3-wire interface RTC with 31Byte NVRAM
The PT7C4302 serial real-time clock is a lowpowerclock/calendar with a programmable square-waveoutput and 31 bytes of nonvolatile RAM.
Using external 32.768kHz quartz crystalReal-time clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 209931-byte, nonvolatile (NV) RAM for data storageTime keeping voltage: 1.5V to 5.5VUses less than 300nA at 2.0VSimple 3-wire interfaceSerial I/O for minimum pin countBurst mode for reading/writing successive addresses in clock/RAMTTL-compatible (VCC = 5V)Optional industrial temperature range: -40°C to +85°CBattery backupTrickle charger on chip for rechargeable energy source backup
仕様
| Brand | Diodes Inc |
|---|---|
| Function | Clock/Calendar |
| Operating temperature | -40 to 85 °C |
| Screening Level | Industrial |
| Bus Type | Serial Microwire |
| Operating | 1.2000, 5.5000 V |
| Msl Level | 1 |
| Time Format | HH:MM:SS |
| Schedule B | 8472909002 |
| HTSN | 8542390001 |
| Country of origin | China |
| Maximum O | 5.5 V |
| User Ram | 31 byte |
| Minimum O | 1.5 V |
| Family | PT7C4302 |
SKU: PT7C4302WE