PT7C4337WEX Pericom Semiconductor, PT7C4337WEX Datasheet - Page 16
![IC REAL TIME CLK/CALENDAR 8-SOIC](/photos/18/28/182870/8-soic_sml.jpg)
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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2) Read via I
Note:
1. The above steps are an example of transfers of one or two bytes only. There is no limit to the number of bytes transferred
2. 49H, 4AH are used as test mode address. Customer should not use the addresses.
PT0205(08/09)
a)
b)
during actual communications.
Restart
Standard read
Simplified read
Start
Start
Sr
S
S
Slave address + write specification
Slave address + read specification
2
1
1
1
Slave address + read specification
C bus
Slave address (7 bits)
Slave address (7 bits)
Slave address (7 bits)
1
1
1
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
Read
write
Read
1
0
1
A
A
C
K
A
A
C
K
A
A
C
K
Data is read from the address pointed
by the internal address register and
address auto increment.
bit
Address
Specifies the read start address.
bit
Data is read from the specified start
address and address auto increment.
7
7
bit
bit
6
6
bit
bit
5
5
Data read (1)
Addr. setting
Data read (1)
bit
bit
4
4
16
bit
bit
3
3
bit
bit
2
2
bit
bit
1
1
bit
bit
0
0
Real-time Clock Module (I
A
A
C
K
A
A
C
K
A
A
C
K
bit
Address register auto increment to set
the address for the next data to be
read.
bit
Address auto increment to set the
address for the next data to be read.
7
7
bit
bit
6
6
bit
bit
5
5
Data read (2)
Data read (2)
bit
bit
4
4
bit
bit
3
3
bit
bit
2
2
bit
bit
1
1
bit
Data Sheet
bit
0
0
PT7C4337
/A
/A
N
O
A
C
K
N
O
A
C
K
2
Stop
C Bus)
Stop
P
P
Ver: 4