34LC02 MICROCHIP [Microchip Technology], 34LC02 Datasheet - Page 14

• Manufacturer Part Number: 34LC02
• Manufacturer: MICROCHIP [Microchip Technology]

34AA02/34LC02
8.0
The descriptions of the pins are listed in Table 8-1.
TABLE 8-1:
8.1
The levels on these inputs are compared with the
corresponding bits in the slave address. The chip is
selected if the compare is true.
Up to eight 34XX02 devices may be connected to the
same bus by using different Chip Select bit
combinations. These inputs must be connected to
either V
The A0 pin is also used to detect V
8.2
This is a bidirectional pin used to transfer addresses
and data into and data out of the device. It is an open
drain terminal. Therefore, the SDA bus requires a pull-
up resistor to V
400 kHz).
For normal data transfer, SDA is allowed to change
only during SCL low. Changes during SCL high are
reserved for indicating the Start and Stop conditions.
DS22029E-page 14
Symbol
SDA
SCL
V
V
WP
A0
A1
A2
CC
SS
SS
PIN DESCRIPTIONS
A0, A1, A2
Serial Address/Data Input/Output
(SDA)
or V
CC
CC
PDIP
.
1
2
3
4
5
6
7
8
PIN FUNCTION TABLE
(typical 10 k for 100 kHz, 2 k for
SOIC
1
2
3
4
5
6
7
8
HV
.
TSSOP
1
2
3
4
5
6
7
8
MSOP
1
2
3
4
5
6
7
8
8.3
This input is used to synchronize the data transfer to
and from the device.
8.4
This is the hardware write-protect pin. It can be tied to
V
is enabled. If the WP pin is tied to V
write protection is disabled.
CC
TDFN
or V
1
2
3
4
5
6
7
8
SS
Serial Clock (SCL)
Write-Protect (WP)
. If tied to V
SOT-23
NC
NC
5
4
2
3
1
6
CC
 2010 Microchip Technology Inc.
, the hardware write protection
Chip Address Input
Chip Address Input
Chip Address Input
Ground
Serial Address/Data I/O
Serial Clock
Write-Protect Input
+1.7V to 5.5V Power Supply
Description
SS
, the hardware