PT7C4363 Datasheet, PDF (3/22 Pages) Pericom Semiconductor Corporation – Real-time Clock Module (I2C Bus)

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