24AA512/24LC512/24FC512
512K I2C™ CMOS Serial EEPROM
Device Selection Table
Description:
Part
Number
VCC
Range
Max. Clock
Frequency
Temp.
Ranges
The Microchip Technology Inc. 24AA512/24LC512/
24FC512 (24XX512*) is a 64K x 8 (512 Kbit) 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 and data acquisi-
tion. This device also has a page write capability of up
to 128 bytes of data. This device is capable of both
random and sequential reads up to the 512K boundary.
Functional address lines allow up to eight devices on
the same bus, for up to 4 Mbit address space. This
device is available in the standard 8-pin plastic DIP,
SOIJ and DFN packages.
24AA512
24LC512
24FC512
1.7-5.5V
2.5-5.5V
1.7-5.5V
400 kHz(1)
I
I, E
I
400 kHz
1 MHz(2)
Note 1: 100 kHz for VCC < 2.5V
2: 400 kHz for VCC < 2.5V
Features:
• Single Supply with Operation Down to 1.7V for
24AA512 and 24FC512 Devices, 2.5V for
24LC512 Devices
Block Diagram
• Low-Power CMOS Technology:
- Active current 400 uA, typical
A0 A1 A2 WP
HV Generator
- Standby current 100 nA, typical
• 2-Wire Serial Interface, I2C™ Compatible
• Cascadable for up to Eight Devices
• Schmitt Trigger Inputs for Noise Suppression
• Output Slope Control to Eliminate Ground Bounce
• 100 kHz and 400 kHz Clock Compatibility
• Page Write Time 5 ms max.
I/O
Control
Logic
Memory
Control
Logic
EEPROM
Array
XDEC
Page Latches
SCL
I/O
YDEC
• Self-Timed Erase/Write Cycle
SDA
• 128-Byte Page Write Buffer
• Hardware Write-Protect
VCC
VSS
Sense Amp.
R/W Control
• ESD Protection >4000V
• More than 1 Million Erase/Write Cycles
• Data Retention > 200 years
Package Type
• Packages Include 8-lead PDIP, SOIJ and DFN
• Pb-Free and RoHS Compliant
• Temperature Ranges:
PDIP
SOIJ
A0
1
8
VCC
1
2
3
4
8
A0
A1
VCC
- Industrial (I): -40°C to +85°C
- Automotive (E):-40°C to +125°C
A1
A2
2
3
7
6
WP
7
6
5
WP
SCL
A2
SCL
SDA
VSS
4
5
SDA
VSS
DFN
1
2
3
4
A0
8
7
6
5
VCC
WP
A1
A2
SCL
SDA
VSS
* 24XX512 is used in this document as a generic part
number for the 24AA512/24LC512/24FC512 devices.
© 2008 Microchip Technology Inc.
DS21754J-page 1