Features
• Low Voltage and Standard Voltage Operation
– 2.7 (VCC = 2.7V 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
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
• Automotive Grade, Extended Temperature and Lead-Free Devices Available
• 8-lead PDIP, 8-lead JEDEC SOIC and 8-lead TSSOP 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-lead PDIP, 8-lead JEDEC SOIC and 8-lead TSSOP 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.
2-Wire Serial
EEPROM
1K (128 x 8)
AT24C01
Pin Configurations
Pin Name
NC
SDA
SCL
TEST
Function
No Connect
Serial Data
Serial Clock Input
Test Input (GND or VCC)
8-lead PDIP
NC
NC
NC
GND
1
2
3
4
8 VCC
7 TEST
6 SCL
5 SDA
NC
NC
NC
GND
8-lead TSSOP
18
27
36
45
VCC
TEST
SCL
SDA
8-lead SOIC
NC
NC
NC
GND
1
2
3
4
8 VCC
7 TEST
6 SCL
5 SDA
Rev. 0134G–SEEPR–7/03
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