© 2008 Microchip Technology Inc. DS22084A-page 1
24AA08H/24LC08BH
Device Selection Table
Features:
• Single Supply with Operation Down to 1.7V for
24AA08H Devices, 2.5V for 24LC08BH 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 for Half-Array (200h-3FFh)
• 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,
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. 24AA08H/24LC08BH
(24XX08H*) is an 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 24XX08H also has a page write
capability for up to 16 bytes of data. The 24XX08H is
available in the standard 8-pin PDIP, surface mount
SOIC, TSSOP, 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
24AA08H 1.7-5.5 400 kHz
(1)
I
24LC08BH 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
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 with Half-Array Write-Protect
*24XX08H is used in this document as a generic part
number for the 24AA08H/24LC08BH devices.