Features
• Low-voltage and Standard-voltage Operation
– 5.0 (VCC = 4.5V to 5.5V)
– 2.7 (VCC = 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
• 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
2-wire Serial
EEPROM Smart
Card Modules
1K (128 x 8)
2K (256 x 8)
4K (512 x 8)
– Endurance: 100,000 Write Cycles
– Data Retention: 100 Years
– ESD Protection: >3000V
Description
The AT24C01A/02SC/04SC/08SC/16SC provides 1024/2048/4096/8192/16384 bits
of serial, electrically-erasable and programmable read-only memory (EEPROM)
organized as 128/256/512/1024/2048 words of 8 bits each. The devices are optimized
for use in smart card applications where low-power and low-voltage operation may be
essential. The devices are available in several standard ISO 7816 smart card modules
(see Ordering Information). The entire family is available in both high-voltage (4.5V to
5.5V) and low-voltage (2.7V to 5.5V) versions. All devices are functionally equivalent
to Atmel serial EEPROM products offered in standard IC packages (PDIP, SOIC,
EIAJ, LAP), with the exception of the slave address and Write Protect functions, which
are not required for smart card applications.
8K (1024 x 8)
16K (2048 x 8)
AT24C01ASC
AT24C02SC
AT24C04SC
AT24C08SC
AT24C16SC
Pin Configurations
Pad Name
VCC
Description
ISO Module Contact
Power Supply Voltage
Ground
C1
GND
SCL
C5
Serial Clock Input
Serial Data Input/Output
No Connect
C3
C7
SDA
NC
C2, C4, C6, C8
Card Module Contact
VCC
NC
Rev. 1610A–05/00
1
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