24AA01/24LC01B
1K I
2
C
™
Serial EEPROM
Device Selection Table
Part
Number
24AA01
24LC01B
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. 24AA01/24LC01B
(24XX01*) is a 1 Kbit Electrically Erasable PROM. The
device is organized as one block of 128 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
µA
and 1 mA, respectively. The
24XX01 also has a page write capability for up to 8
bytes of data. The 24XX01 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.
100 kHz for V
CC
<2.5V
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 1 block of 128 bytes (1 x 128 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 (24AA01) and 400 kHz (24LC01B)
compatibility
• 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 packages
• 5-lead SOT-23 package
• Standard and Pb-free finishes
• Available for extended temperature ranges:
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
Package Types
PDIP/SOIC/TSSOP/MSOP
A0
A1
A2
V
SS
1
24XX01
2
3
4
8
7
6
5
V
CC
WP
SCL
SCL
V
SS
SOT-23-5
1
2
3
5
WP
24XX01
SDA SDA
4
V
CC
Note:
Pins A0, A1 and A2 are not used by the
24XX01 (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
2003 Microchip Technology Inc.
DS21711C-page 1
MICROCHIP [ MICROCHIP TECHNOLOGY ]
