鈥?/div>
鈥?Utilizes Different Array Protection Compared to the AT24C02/04/08/16
Low-voltage and Standard-voltage Operation
鈥?2.7 (V
CC
= 2.7V to 5.5V)
鈥?1.8 (V
CC
= 1.8V to 5.5V)
Internally Organized 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 (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Clock Rate for AT24C02A, 04A and 08A
100 kHz (1.8V) and 400 kHz (2.5V, 2.7V and 5V) Clock Rate for AT24C16A
8-byte Page (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: One Million Write Cycles
鈥?Data Retention: 100 Years
Automotive Grade and Extended Temperature Devices Available
8-lead JEDEC SOIC, 8-pin PDIP, and 8-lead TSSOP Packages
2-wire Serial
EEPROM
2K (256 x 8)
4K (512 x 8)
8K (1024 x 8)
16K (2048 x 8)
Description
The AT24C02A/04A/08A/16A provides 2048/4096/8192/16384 bits of serial electri-
cally erasable and programmable read only memory (EEPROM) organized as
256/512/1024/2048 words of 8 bits each. The device is optimized for use in many
industrial and commercial applications where low power and low voltage operation are
essential. The AT24C02A/04A/08A/16A is available in space saving 8-pin PDIP, 8-lead
JEDEC SOIC, and 8-lead TSSOP (AT24C02A/04A) packages and is accessed via a
2-wire serial interface. In addition, the entire family is available in 2.7V (2.7V to 5.5V)
and 1.8V (1.8V to 5.5V) versions.
AT24C02A
AT24C04A
AT24C08A
AT24C16A
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
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
A0
A1
A2
GND
8-pin PDIP
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
8-lead SOIC
8-lead TSSOP
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
Rev. 0976D鈥?2/01
1