24LC1026-E/SN Microchip Technology, 24LC1026-E/SN Datasheet - Page 5

• Manufacturer Part Number: 24LC1026-E/SN
• Description: 1024K, 128K X 8, 2.5V SER EE, 128 BYTE PAGE 8 SOIC 3.90mm (.150") TUBE
• Manufacturer: Microchip Technology
• Series: -r

Specifications of 24LC1026-E/SN

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 1M (128K x 8)
• Speed: 400kHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2.0
The descriptions of the pins are listed in
TABLE 2-1:
2.1
The A1 and A2 inputs are used by the 24XX1026 for
multiple device operations. The levels on these inputs
are compared with the corresponding bits in the slave
address. The chip is selected if the comparison is true.
Up to four devices may be connected to the same bus
by using different Chip Select bit combinations. In most
applications, the chip address inputs A1 and A2 are
hard-wired to logic ‘0’ or logic ‘1’. For applications in
which these pins are controlled by a microcontroller or
other programmable device, the chip address pins
must be driven to logic ‘0’ or logic ‘1’ before normal
device operation can proceed.
2.2
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 and 1 MHz).
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.
2.3
This input is used to synchronize the data transfer from
and to the device.
2.4
This pin must be connected to either V
to V
write operations are inhibited, but read operations are
not affected.
 2011 Microchip Technology Inc.
Name PDIP SOIJ SOIC
SDA
SCL
V
V
WP
NC
A1
A2
CC
SS
SS
, write operations are enabled. If tied to V
PIN DESCRIPTIONS
A1, A2 Chip Address Inputs
Serial Data (SDA)
Serial Clock (SCL)
Write-Protect (WP)
1
2
3
4
5
6
7
8
CC
1
2
3
4
5
6
7
8
PIN FUNCTION TABLE
(typical 10 k for 100 kHz, 2 kfor
1
2
3
4
5
6
7
8
Not Connected
User Configurable Chip
Select
User Configurable Chip
Select
Ground
Serial Data
Serial Clock
Write-Protect Input
+1.7 to 5.5V (24AA1026)
+2.5 to 5.5V (24LC1026)
+1.8 to 5.5V (24FC1026)
24AA1026/24LC1026/24FC1026
Function
SS
Table
or V
CC
2-1.
. If tied
CC
,
DS22270B-page 5