| Part Number | PT7C4302 |
| Manufacturer | Pericom Semiconductor |
| Title | Real-time Clock Module |
| Description | The PT7C4302 serial real-time clock is a lowpower clock/calendar with a programmable square-wave output and 31 bytes of nonvolatile RAM. Address a... |
| Features |
Using external 32.768kHz quartz crystal Real-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 2099 31-byte, nonvolatile (NV) RAM for data storage Time keeping voltage: 1.5V to 5.5V Uses less than 300... |
| File Size | 349.93KB |
| Datasheet |
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PT7C4300 : The PT7C4300 serial real-time clock is a low-power clock/calendar with a programmable square-wave output. ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features • • • Using external 32.768kHz quartz crystal Supports I2C-Bus's high speed mode (400 kHz) Includes time (Hour/Minute/Second) and calendar (Year/Month/Date/Day) counter functions (BCD code) • • • • Automatic power-fail detect and switch circuitry of batte.
PT7C4307 : The PT7C4307 serial real-time clock 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. The PT7C4307 has a built-in power sense circuit that detects power failures and automatically switches to the battery supply. Table 1 shows the basic functions of PT7C4307. More det.