24AA1025/24LC1025/24FC1025
1024K I2C™ Serial EEPROM
Device Selection Table:
Part
Number
VCC
Range
Max. Clock
Frequency
24AA1025
1.7-5.5V
400 kHz†
I
24LC1025
2.5-5.5V
400 kHz*
I, E
24FC1025
1.8-5.5V
1 MHz‡
I
Temp.
Ranges
†
100 kHz for VCC < 2.5V
*100 kHz for VCC < 4.5V, E-temp
‡400 kHz for VCC < 2.5V
This device is capable of both random and sequential
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, SOIC and SOIJ packages.
Package Type
PDIP
A0
1
8
VCC
A1
2
7
WP
A2*
3
6
SCL
VSS
4
5
SDA
Features:
• Low-Power CMOS Technology:
- Read current 450 A, maximum
- Standby current 5 A, maximum
• 2-Wire Serial Interface, I2C™ Compatible
• Cascadable up to Four Devices
• 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
• Page Write Time 3 ms, typical
• Self-Timed Erase/Write Cycle
• 128-Byte Page Write Buffer
• Hardware Write-Protect
• ESD Protection >4000V
• More than 1 Million Erase/Write Cycles
• Data Retention >200 Years
• Factory Programming Available
• Packages include 8-lead PDIP, SOIJ and SOIC
• Pb-Free and RoHS Compliant
• Temperature Ranges:
- Industrial (I):
-40C to +85C
- Automotive (E): -40C to +125C
Description:
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.
2005-2013 Microchip Technology Inc.
SOIJ/SOIC
A0
1
8
VCC
A1
2
7
WP
A2*
3
6
SCL
VSS
4
5
SDA
*A2 must be tied to VCC.
Block Diagram
A0 A1
I/O
Control
Logic
WP
Memory
Control
Logic
HV Generator
XDEC
EEPROM
Array
Page Latches
I/O
SCL
YDEC
SDA
VCC
VSS
Sense AMP
R/W Control
*24XX1025 is used in this document as a generic part number
for the 24AA1025/24LC1025/24FC1025 devices.
DS20001941L-page 1
