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Serial EEPROM
Device Selection Table
Part
Number
24AA08
24LC08B
Note 1:
V
CC
Range
1.8-5.5
2.5-5.5
Max Clock
Frequency
400 kHz
(1)
400 kHz
Temp
Ranges
I
I, E
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 1.8V, with standby
and active currents of only 1
渭A
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 and MSOP packages, and is
also available in the 5-lead SOT-23 package.
100 kHz for V
CC
<2.5V
Features:
鈥?Single supply with operation down to 1.8V
鈥?Low-power CMOS technology:
- 1 mA active current, typical
- 1
渭A
standby current, typical (I-temp)
鈥?Organized as 4 blocks of 256 bytes (4 x 256 x 8)
鈥?2-wire serial interface bus, I
2
C鈩?compatible
鈥?Schmitt Trigger inputs for noise suppression
鈥?Output slope control to eliminate ground bounce
鈥?100 kHz (<2.5V) and 400 kHz (鈮?.5V) compatibility
鈥?Self-timed write cycle (including auto-erase)
鈥?Page write buffer for up to 16 bytes
鈥?2 ms typical write cycle time for page write
鈥?Hardware write-protect for entire memory
鈥?Can be operated as a serial ROM
鈥?Factory programming (QTP) available
鈥?ESD protection > 4,000V
鈥?1,000,000 erase/write cycles
鈥?Data retention > 200 years
鈥?8-lead PDIP, SOIC, TSSOP, DFN and MSOP
packages
鈥?5-lead SOT-23 package
鈥?Standard and Pb-free finishes available
鈥?Available for extended temperature ranges:
- Industrial (I): -40掳C to +85掳C
- Automotive (E): -40掳C to +125掳C
Block Diagram
WP
HV
Generator
I/O
Control
Logic
Memory
Control
Logic
XDEC
EEPROM
Array
Page
Latches
I/O
SCL
YDEC
SDA
V
CC
V
SS
Sense Amp.
R/W Control
Package Types
PDIP, MSOP
A0
A1
A2
V
SS
1
2
3
4
SOT-23-5
SCL
Vss
SDA
Note:
1
2
3
4
Vcc
5
WP
A0 1
A1 2
A2 3
V
SS
4
8
7
6
5
V
CC
WP
SCL
A0
A1
A2
SOIC, TSSOP
1
2
3
4
DFN
8 V
CC
7 WP
6 SCL
5 SDA
8
7
6
5
V
CC
WP
SCL
SDA
SDA V
SS
Pins A0, A1 and A2 are not used by the 24XX08. (No
internal connections).
*24XX08 is used in this document as a generic part
number for the 24AA08/24LC08B devices.
漏
2005 Microchip Technology Inc.
DS21710D-page 1