24AA02T MICROCHIP [Microchip Technology], 24AA02T Datasheet - Page 5

• Manufacturer Part Number: 24AA02T
• Manufacturer: MICROCHIP [Microchip Technology]

2.0
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
2.1
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.
2.2
The SCL input is used to synchronize the data transfer
to and from the device.
© 2009 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
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
DFN
1
2
3
4
5
6
7
8
TDFN
1
2
3
4
5
6
7
8
MSOP
2.3
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. Read operations are
not affected.
2.4
These A0, A1 and A2 pins are not used by the 24XX02.
They may be left floating or tied to either V
1
2
3
4
5
6
7
8
24AA02/24LC02B
Write-Protect (WP)
A0, A1, A2
SOT23
CC
SS
—
—
—
2
3
1
5
4
, write operations are inhibited. The entire
, normal memory operation is enabled
SC-70
—
—
—
2
3
1
5
4
Not Connected
Not Connected
Not Connected
Ground
Serial Clock
Write-Protect Input
+1.7V to 5.5V Power
Supply
Serial Address/Data I/O
00-FF
Description
).
DS21709J-page 5
SS
SS
or V
or V
CC
CC
.
.