Features
• Low Voltage and Standard Voltage Operation
– 5.0 (VCC = 4.5V to 5.5V)
– 2.7 (VCC = 2.7V to 5.5V)
– 2.5 (VCC = 2.5V to 5.5V)
– 1.8 (VCC = 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
2-Wire Serial
EEPROM
1K (128 x 8)
– 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
AT24C01
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.
8-Pin MSOP
Pin Configurations
8-Pin TSSOP
Pin Name Function
NC
NC
1
2
3
4
8
7
6
5
VCC
TEST
SCL
NC
No Connect
SDA
SCL
Test
Serial Data
NC
GND
SDA
Serial Clock Input
Test Input (GND or VCC
2-Wire, 1K
)
Serial EEPROM
8-Pin PDIP
8-Pin SOIC
NC
NC
1
2
3
4
8
7
6
5
VCC
TEST
SCL
NC
NC
NC
1
8
7
6
5
VCC
TEST
SCL
2
3
4
NC
GND
SDA
GND
SDA
Rev. 0134C–07/98
1