24AA02H MICROCHIP [Microchip Technology], 24AA02H Datasheet - Page 5

• Manufacturer Part Number: 24AA02H
• Manufacturer: MICROCHIP [Microchip Technology]

2.0
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
2.1
The A0, A1 and A2 pins are not used by the 24XX02H.
They may be left floating or tied to either V
2.2
SDA is a bidirectional pin used to transfer addresses
and data into and out of the device. Since it is an open-
drain terminal, the SDA bus requires a pull-up resistor
to V
For normal data transfer, SDA is allowed to change
only during SCL low. Changes during SCL high are
reserved for indicating Start and Stop conditions.
2.3
The SCL input is used to synchronize the data transfer
to and from the device.
© 2008 Microchip Technology Inc.
Name
SDA
SCL
V
V
WP
A0
A1
A2
CC
SS
CC
(typical 10 kΩ for 100 kHz, 2 kΩ for 400 kHz).
PIN DESCRIPTIONS
A0, A1, A2
Serial Address/Data Input/Output
(SDA)
Serial Clock (SCL)
PDIP
1
2
3
4
5
6
7
8
PIN FUNCTION TABLE
SOIC
1
2
3
4
5
6
7
8
TSSOP
1
2
3
4
5
6
7
8
SS
or V
DFN
CC
1
2
3
4
5
6
7
8
.
MSOP
1
2
3
4
5
6
7
8
2.4
The WP pin must be connected to either V
If tied to V
(read/write the entire memory
If tied to V
memory will be write-protected (80h-FFh). Read
operations are not affected.
24AA02H/24LC02BH
SOT23
—
—
—
Write-Protect (WP)
2
3
1
5
4
CC
SS
, write operations are inhibited. Half of the
, normal memory operation is enabled
SC-70
—
—
—
2
3
1
5
4
Not Connected
Not Connected
Not Connected
Ground
Serial Address/Data I/O
Serial Clock
Write-Protect Input
+1.7V to 5.5V Power
Supply
00-FF
Description
).
DS22105A-page 5
SS
or V
CC
.