Pericom Semiconductor PT7C4339C
The PT7C4339 real-time clock is a low-power clock/calendar device with two programmable time-of- day alarms and a programmable square-wave output. 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.| Part No. | PT7C4339C |
|---|---|
| Datasheet | PT7C4339C Download |
| Manufacturer |  Pericom Semiconductor |
| Description | Real-time Clock Module |
| Buy | Stock & Price |
FEATURES
● Real-Time Clock (RTC) Including Time (Seconds, Minutes and Hours) and Calendar (Day, Date, Month and Year with Leap-Year Compensation Valid Up to 2100) counter functions (BCD code)● Available in a Surface-Mount Package with an Integrated Crystal (Only for PT7C4339C)
● I2C Serial Interface supports I2C-Bus's high speed mode (400 kHz)
● Programmable square wave output signal, defaults to 32 kHz on Power-up
● Two Time-of-Day Alarms
● Oscillator Stop Flag
● Automatic Power-Fail Detect and Switch Circuitry
● Temperature Range: -40°C to +85°C
● Package: MSOP-8L and SOIC-8L for PT7C4339 TDFN4x4-8L for PT7C4339C
APPLICATIONS
DESCRIPTION
Address and data are transferred serially through an I2C bus. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The PT7C4339 has a build-in power-sense circuit that detects power failures and automatically switch to the backup supply, maintaining time, date, and alarm operation. Pin Configuration PT7C4339 PT7C4339C 1 X1 VCC 8 1 NC NC 8 2 X2 SQW/INT 7 2 VBACKUP SCL 7 3 VBACKUP SCL 6 3 GND SQW/INT 6 4 GND SDA 5 4 SDA VCC 5 SOIC-8 MSOP8 DFN4*4-8L Table1.
