PT7C4311WEX Pericom Semiconductor, PT7C4311WEX Datasheet - Page 3

• Manufacturer Part Number: PT7C4311WEX
• Description: IC REAL TIME CLK/CALENDAR 8-SOIC
• Manufacturer: Pericom Semiconductor
• Type: Clock/Calendarr

Specifications of PT7C4311WEX

• Memory Size: 56B
• Time Format: Binary
• Date Format: Binary
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.2 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
• Other names: PT7C4311WEXTR

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Pin Configuration
Pin Description
Note: 1. V
PT0322(08/09)
Pin no.
1
2
3
4
5
6
7
8
SO
: Battery Back-up Switchover Voltage
FT/OUT
VBAT
GND
SDA
VCC
SCL
Pin
X1
X2
Type
I/O
O
O
P
P
P
I
I
Oscillator Circuit Input. Together with X1, 32.768kHz crystal is connected between them.
Or external clock input.
Oscillator Circuit Output. Together with X1, 32.768kHz crystal is connected between them.
Battery Supply Voltage. When V
will power the IC.
Ground.
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.
Serial Clock Input. SCL is used to synchronize data movement on the I
Frequency Test / Output Driver. Open drain. 512Hz output when Frequency Test is selected.
Output DC level by register selection. Frequency Test is prior.
Supply Voltage. When V
power the IC.
CC
>V
3
SO
1
, VCC will power the IC. While V
CC
>V
SO
Description
1
, VCC will power the IC. While V
Real-time Clock Module (I
CC
<V
2
C serial interface.
SO
1
, VBAT will
CC
Data Sheet
<V
PT7C4311
SO
1
2
, VBAT
C Bus)
Ver: 2