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
– 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) versions.
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 vcc)
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