M
Device Selection Table
Part
Number
24AA02
24XX02B
V
CC
Range
1.8-5.5
2.5-5.5
Max Clock
Frequency
400 kHz
(1)
400 kHz
Note 1:
100 kHz for V
CC
<2.5V
24AA02/24LC02B
2K I
2
C
™
Serial EEPROM
Description
Temp
Ranges
I
I, E
The Microchip Technology Inc. 24AA02/24LC02B
(24XX02*) is a 2 Kbit Electrically Erasable PROM. The
device is organized as one block of 256 x 8-bit memory
with a 2-wire serial interface. Low voltage design per-
mits operation down to 1.8V with standby and active
currents of only 1 µA and 1 mA respectively. The
24XX02 also has a page-write capability for up to 8
bytes of data. The 24XX02 is available in the standard
8-pin PDIP, surface mount SOIC, TSSOP and MSOP
packages and is also available in the 5-lead SOT-23
package.
Features
• Single supply with operation down to 1.8V
• Low power CMOS technology
- 1 mA active current typical
- 1 µA standby current typical (I-temp)
• Organized as 1blocks of 256 bytes (1 x 256 x 8)
• 2-wire serial interface bus, I
2
C™ compatible
• Schmitt trigger inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz (24AA02) and 400 kHz (24XX02B) com-
patibility
• Self-timed write cycle (including auto-erase)
• Page-write buffer for up to 8 bytes
• 2 ms typical write cycle time for page-write
• Hardware write protect for entire memory
• Can be operated as a serial ROM
• Factory programming (QTP) available
• ESD protection > 4,000V
• 1,000,000 erase/write cycles
• Data retention > 200 years
• 8-lead PDIP, SOIC, TSSOP, and MSOP package
• 5-lead SOT-23 package
• Available for extended temperature ranges:
- Industrial (I):
-40°C to +85°C
- Automotive (E):
-40°Cto +125°C
Package Types
PDIP/SOIC/TSSOP/MSOP
A0
A1
A2
Vss
1
24XX02
2
3
4
8
7
6
5
Vcc
WP
SCL
SCL
Vss
SOT23-5
1
2
3
5
WP
24XX02
SDA SDA
4
Vcc
Note:
Pins A0, A1 and A2 are not used by the
24XX02B. (No internal connections).
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
*24XX02 is used in this document as a generic part number for the 24AA02/24LC02B devices.
2002 Microchip Technology Inc.
DS21709A-page 1
ETC [ ETC ]
