24AA01/24LC01B
1K I2C™ Serial EEPROM
Device Selection Table
Description
The Microchip Technology Inc. 24AA01/24LC01B
Part
VCC
Max Clock
Temp
(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.
Number
Range
Frequency
Ranges
24AA01
1.8-5.5
2.5-5.5
400 kHz(1)
400 kHz
I
24LC01B
I, E
Note 1: 100 kHz for VCC <2.5V
Features
• Single-supply with operation down to 1.8V
• Low-power CMOS technology
- 1 mA active current typical
Package Types
- 1 µA standby current typical (I-temp)
• Organized as 1 block of 128 bytes (1 x 128 x 8)
• 2-wire serial interface bus, I2C™ compatible
• Schmitt Trigger inputs for noise suppression
• Output slope control to eliminate ground bounce
PDIP/SOIC/TSSOP/MSOP
SOT-23-5
A0
A1
1
2
3
4
8
7
6
5
VCC
WP
WP
1
5
SCL
2
3
VSS
A2
SCL
SDA
• 100 kHz (24AA01) and 400 kHz (24LC01B)
compatibility
4
VCC
SDA
VSS
• 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
Note:
Pins A0, A1 and A2 are not used by the
24XX01 (no internal connections).
Block Diagram
WP
HV Generator
• 1,000,000 erase/write cycles
• Data retention > 200 years
• 8-lead PDIP, SOIC, TSSOP and MSOP packages
• 5-lead SOT-23 package
I/O
Control
Logic
Memory
Control
Logic
EEPROM
Array
XDEC
• Standard and Pb-free finishes
Page Latches
• Available for extended temperature ranges:
- Industrial (I): -40°C to +85°C
I/O
SCL
- Automotive (E): -40°C to +125°C
YDEC
SDA
VCC
VSS
Sense Amp.
R/W Control
2003 Microchip Technology Inc.
DS21711C-page 1