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PT7C4300W Datasheet(PDF) 3 Page - Pericom Semiconductor Corporation |
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PT7C4300W Datasheet(HTML) 3 Page - Pericom Semiconductor Corporation |
3 / 17 page ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| PT0222(02/06) Ver: 0 3 Data Sheet PT7C4300 Real-time Clock Module (I 2C Bus) Pin Configuration Pin Description Pin no. Pin Type Description 1 X1 I Oscillator Circuit Input. Together with X1, 32.768kHz crystal is connected between them. Or external clock input. 2 X2 O Oscillator Circuit Output. Together with X1, 32.768kHz crystal is connected between them. 3 VBAT P Battery Supply Voltage. 4 GND P Ground. 5 SDA I/O Serial Data Input/Output. SDA is the input/output pin for the 2-wire serial interface. The SDA pin is open-drain output and requires an external pull-up resistor. 6 SCL I Serial Clock Input. SCL is used to synchronize data movement on the I 2C serial interface. 7 FT/OUT O Frequency Test / Output Driver. Open drain. 512Hz output when Frequency Test is selected. Output DC level by register selection. Frequency Test is prior. 8 VCC P Supply Voltage. |
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