PT7C4337WEX Pericom Semiconductor, PT7C4337WEX Datasheet - Page 2
PT7C4337WEX
Manufacturer Part Number
PT7C4337WEX
Description
IC REAL TIME CLK/CALENDAR 8-SOIC
Manufacturer
Pericom Semiconductor
Type
Clock/Calendar/Alarmr
Datasheet
1.PT7C4337WEX.pdf
(23 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PT7C4337WEX
Manufacturer:
Pericom
Quantity:
2 400
Part Number:
PT7C4337WEX
Manufacturer:
PERICOM
Quantity:
20 000
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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