鈥?/div>
鈥?5.0 (V
CC
= 4.5V to 5.5V)
鈥?2.7 (V
CC
= 2.7V to 5.5V)
Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K),
1024 x 8 (8K) or 2048 x 8 (16K)
2-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bi-directional Data Transfer Protocol
100 kHz (2.7V) and 400 kHz (5V) Compatibility
Write Protect Pin for Hardware Data Protection
8-byte Page (1K, 2K), 16-byte Page (4K, 8K, 16K) Write Modes
Partial Page Writes are Allowed
Self-timed Write Cycle (10 ms max)
High-reliability
鈥?Endurance: 1 Million Write Cycles
鈥?Data Retention: 100 Years
8-pin PDIP and 8-lead JEDEC SOIC Packages
2-wire
Automotive
Serial EEPROM
1K (128 x 8)
2K (256 x 8)
4K (512 x 8)
8K (1024 x 8)
16K (2048 x 8)
Description
The AT24C01A/02/04/08/16 provides 1024/2048/4096/8192/16384 bits of serial elec-
trically erasable and programmable read-only memory (EEPROM) organized as
128/256/512/1024/2048 words of 8 bits each. The device is optimized for use in many
automotive applications where low-power and low-voltage operation are essential.
The AT24C01A/02/04/08/16 is available in space-saving 8-pin PDIP and 8-lead
JEDEC SOIC packages and is accessed via a 2-wire serial interface. In addition, the
entire family is available in 5.0V (4.5V to 5.5V) and 2.7V (2.7V to 5.5V) versions.
Pin Configurations
Pin Name
A0 - A2
SDA
SCL
WP
NC
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
No Connect
A0
A1
A2
GND
8-pin PDIP
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
AT24C01A
AT24C02
AT24C04
AT24C08
AT24C16
8-lead SOIC
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
Rev. 3256A鈥揝EEPR鈥?2/02
1