1
Features
• Low Voltage and Standard Voltage Operation
– 5.0 (V
CC
= 4.5V to 5.5V)
– 2.7 (V
CC
= 2.7V to 5.5V)
– 2.5 (V
CC
= 2.5V to 5.5V)
– 1.8 (V
CC
= 1.8V to 5.5V)
• Internally Organized 128 x 8
• 2-Wire Serial Interface
• Bidirectional Data Transfer Protocol
• 100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Compatibility
• 4-Byte Page Write Mode
• Self-Timed Write Cycle (10 ms max)
• High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
– ESD Protection: >3000V
• Automotive Grade and Extended Temperature Devices Available
• 8-Pin PDIP, 8-Pin MSOP, 8-Pin TSSOP and 8-Pin JEDEC SOIC Packages
Description
The AT24C01 provides 1024 bits of serial electrically erasable and programmable
read only memory (EEPROM) organized as 128 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 AT24C01 is available in space saving
8-pin PDIP, 8-pin MSOP, 8-pin TSSOP, and 8-pin 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), 2.7V (2.7V to 5.5V), 2.5V (2.5V to 5.5V) and 1.8V (1.8V to 5.5V) ver-
sions.
2-Wire Serial
EEPROM
1K (128 x 8)
AT24C01
Rev. 0134C–07/98
2-Wire, 1K
Serial EEPROM
Pin Configurations
Pin Name Function
NC No Connect
SDA Serial Data
SCL Serial Clock Input
Test Test Input (GND or V
CC
)
8-Pin PDIP
1
2
3
4
8
7
6
5
NC
NC
NC
GND
VCC
TEST
SCL
SDA
8-Pin SOIC
1
2
3
4
8
7
6
5
NC
NC
NC
GND
VCC
TEST
SCL
SDA
8-Pin MSOP
8-Pin TSSOP
1
2
3
4
8
7
6
5
NC
NC
NC
GND
VCC
TEST
SCL
SDA