© 2008 Microchip Technology Inc. DS21710H-page 1
24AA08/24LC08B
Device Selection Table
Features:
• Single Supply with Operation Down to 1.7V for
24AA08 Devices, 2.5V for 24LC08B Devices
• Low-Power CMOS Technology:
- Read current 1 mA, max.
- Standby current 1 μA, max
• 2-Wire Serial Interface, I
2
C™ Compatible
• Schmitt Trigger inputs for Noise Suppression
• Output Slope Control to eliminate Ground Bounce
• 100 kHz and 400 kHz Clock Compatibility
• Page Write Time 3 ms, typical
• Self-Timed Erase/Write Cycle
• 16-Byte Page Write Buffer
• Hardware Write-Protect
• ESD Protection >4,000V
• More than 1 Million Erase/Write Cycles
• Data Retention >200 years
• Factory Programming Available
• Packages include 8-lead PDIP, SOIC, TSSOP,
DFN, TDFN, MSOP and 5-lead SOT-23
• Pb-free and RoHS Compliant
• Temperature Ranges:
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
Description:
The Microchip Technology Inc. 24AA08/24LC08B
(24XX08*) is a 8 Kbit Electrically Erasable PROM. The
device is organized as four blocks of 256 x 8-bit
memory with a 2-wire serial interface. Low-voltage
design permits operation down to 1.7V, with standby
and active currents of only 1 μA and 1 mA,
respectively. The 24XX08 also has a page write
capability for up to 16 bytes of data. The 24XX08 is
available in the standard 8-pin PDIP, surface mount
SOIC, TSSOP, 2x3 DFN, 2x3 TDFN and MSOP
packages, and is also available in the 5-lead SOT-23
package. All packages are Pb-free and RoHS
compliant.
Block Diagram
Package Types
Part
Number
VCC
Range
Max. Clock
Frequency
Temp.
Ranges
24AA08 1.7-5.5 400 kHz
(1)
I
24LC08B 2.5-5.5 400 kHz I, E
Note 1: 100 kHz for VCC <2.5V
HV
EEPROM
Array
Page
YDEC
XDEC
Sense Amp.
Memory
Control
Logic
I/O
Control
Logic
I/O
WP
SDA
SCL
V
CC
VSS
R/W Control
Latches
Generator
A0
A1
A2
V
SS
VCC
WP
SCL
SDA
1
2
3
4
8
7
6
5
PDIP, MSOP
SOIC, TSSOP
A0
A1
A2
V
SS
1
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
DFN/TDFN
A0
A1
A2
V
SS
WP
SCL
SDA
V
CC
SOT-23-5
15
4
3
SCL
Vss
SDA
WP
Vcc
2
Note: Pins A0, A1 and A2 are not used by the 24XX08. (No
internal connections).
8
7
6
5
1
2
3
4
8K I
2
C
™
Serial EEPROM
*24XX08 is used in this document as a generic part
number for the 24AA08/24LC08B devices.
