NRND = Not Recommended for New Design
Real Time Clock (I2C)
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The PT7C433833A is a low-power clock/calendar with a programmable square-wave output and 56 bytes of nonvolatile RAM.
Address and data are transferred serially via a 2-wire, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. PT7C4338eeA has a built-in power sense circuit that detects power failures and automatically switches to the battery supply.
| Compliance(Only Automotive supports PPAP) | Standard |
|---|---|
| Time Display | 12, 24 |
| NV Ram | 56x8 |
| Interface | I2C |
| Alarm Interrupt | 0 |
| Battery Backup | 1 |
| Clock Calibration | 0 |
Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents
A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2651 | 2023-11-13 | 2023-11-13 | Qualified Additional Fab Source, Assembly Test Sites, Die Revision, BOM, Datasheet, Tape and Reel Packing Quantity. |
| PCN-2642 | 2023-09-05 | 2024-03-05 | Device End of Life (EOL) |
| PCN-2510 | 2021-02-26 | 2021-05-26 | Qualified Additional A/T Sites, Fab Site and Data Sheet Change |
