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PT7C4363

Real-time Clock Module (I2C Bus)

Pericom Semiconductor 

Data Sheet

PT7C4363

Real-time Clock Module (I2C Bus)

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Pin Configuration

PT7C4363

1 X1

VCC 8

2 X2

3 INT

SQW 7

SCL 6

4 GND

SDA 5

DIP-8

SOIC-8

Pin Description

Pin no.

1

Pin

Type

Description

X1

I Oscillator Circuit Input. Together with X2, 32.768kHz crystal is connected between them.

2

X2

O Oscillator Circuit Output. Together with X1, 32.768kHz crystal is connected between them.

3

INT

O Interrupt Output. Open drain, active low.

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 I2C serial interface.

7

SQW

O

Clock Output. Open drain. Four frequencies selectable: 32.768k, 1.024k, 32, 1Hz when

SQWE bit is set to 1.

8

VCC

P Power.

PT0207(07/05)

3

Ver: 0

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