PT7C4337WEX Pericom Semiconductor, PT7C4337WEX Datasheet - Page 2

• Manufacturer Part Number: PT7C4337WEX
• Description: IC REAL TIME CLK/CALENDAR 8-SOIC
• Manufacturer: Pericom Semiconductor
• Type: Clock/Calendar/Alarmr

Specifications of PT7C4337WEX

• Time Format: Binary
• Date Format: Binary
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Other names: PT7C4337WEXTR

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Pin Assignment
Pin Description
PT0205(08/09)
Pin no.
1
2
6
5
3
7
8
4
SQW/INTB
INTA
GND
SDA
VCC
SCL
Pin
X1
X2
Type
I/O
O
O
O
P
P
I
I
Oscillator Circuit Input. Together with X2, 32.768kHz crystal is connected between them.
Or external clock input.
Oscillator Circuit Output. Together with X1, 32.768kHz crystal is connected between them.
When 32.768kHz external input, X2 must be float.
Serial Clock Input. SCL is used to synchronize data movement on the I
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.
Interrupt Output. When enabled, INTA is asserted low when the time matches the values set
in the alarm registers. This pin is an open-drain output and requires an external pull up resistor.
Square-Wave/Interrupt Output. Programmable square-wave or interrupt output signal. It is
an open-drain output and requires an external pull up resistor.
Power.
Ground.
1
2
3
4
X1
X2
INTA
GND
PT7C4337
SQW/INTB
2
VCC
SDA
SCL
8
7
6
5
Description
Real-time Clock Module (I
2
C serial interface.
Data Sheet
PT7C4337
2
C Bus)
Ver: 4