24AA1025/24LC1025/24FC1025
1024K I2C™ CMOS Serial EEPROM
This device is capable of both random and sequential
Device Selection Table:
reads. Reads may be sequential within address
boundaries 0000h to FFFFh and 10000h to 1FFFFh.
Functional address lines allow up to four devices on the
same data bus. This allows for up to 4 Mbits total
system EEPROM memory. This device is available in
the standard 8-pin PDIP and SOIJ packages.
Part
Number
VCC
Range
Max. Clock
Frequency
Temp.
Ranges
24AA1025
24LC1025
24FC1025
1.7-5.5V
2.5-5.5V
1.8-5.5V
400 kHz†
400 kHz*
1 MHz‡
I
I, E
I
†100 kHz for VCC < 2.5V
Package Type
*100 kHz for VCC < 4.5V, E-temp
‡400 kHz for VCC < 2.5V
PDIP
A0
1
8
VCC
Features:
A1
A2
2
3
4
7
6
5
WP
SCL
SDA
• Low-Power CMOS Technology:
- Read current 450 μA, maximum
- Standby current 5 μA, maximum
• 2-Wire Serial Interface, I2C™ Compatible
• Cascadable up to Four Devices
VSS
SOIJ
1
2
8
7
A0
VCC
• Schmitt Trigger Inputs for Noise Suppression
• Output Slope Control to Eliminate Ground Bounce
• 100 kHz and 400 kHz Clock Compatibility
• 1 MHz Clock for FC Versions
A1
A2
WP
3
4
6
5
SCL
SDA
VSS
• Page Write Time 3 ms, typical
• Self-Timed Erase/Write Cycle
• 128-Byte Page Write Buffer
Block Diagram
• Hardware Write-Protect
• ESD Protection >400V
A0A1 WP
HV Generator
• More than 1 Million Erase/Write Cycles
• Data Retention >200 Years
I/O
Control
Logic
Memory
Control
Logic
• Factory Programming Available
• Packages include 8-lead PDIP, SOIJ
• Pb-Free and RoHS Compliant
• Temperature Ranges:
EEPROM
Array
XDEC
Page Latches
I/O
- Industrial (I):
-40°C to +85°C
SCL
YDEC
- Automotive (E): -40°C to +125°C
SDA
Description:
VCC
Sense AMP
R/W Control
VSS
The Microchip Technology Inc. 24AA1025/24LC1025/
24FC1025 (24XX1025*) is a 128K x 8 (1024K bit)
Serial Electrically Erasable PROM, capable of
operation across a broad voltage range (1.7V to 5.5V).
It has been developed for advanced, low-power
applications such as personal communications or data
acquisition. This device has both byte write and page
write capability of up to 128 bytes of data.
*24XX1025 is used in this document as a generic part number
for the 24AA1025/24LC1025/24FC1025 devices.
© 2008 Microchip Technology Inc.
DS21941F-page 1