Akai LCT2765TD, Service Manual

Page: 39 / 105

AT24C01A/2/4/8/16
2-Wire
Serial CMOS
E
2
PROM
1K (128 x 8)
2K (256 x 8)
4K (512 x 8)
8K (1024 x 8)
16K (2048 x 8)
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 (1K), 256 x 8 (2K), 512 x 8 (4K),
1024 x 8 (8K) or 2048 x 8 (16K)
•
2-Wire Serial Interface
•
Bidirectional Data Transfer Protocol
•
100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Compatibility
•
Write Protect Pin for Hardware Data Protection
•
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
Endurance: 1 Million Cycles
Data Retention: 100 Years
•
Automotive Grade and Extended Temperature Devices Available
•
8-Pin and 14-Pin JEDEC SOIC and 8-Pin PDIP Packages
Description
The AT24C01A/02/04/08/16 provides 1024/2048/4096/8192/16384 bits of serial elec-
trically erasable and programmable read only memory (EEPROM) organized as
128/256/512/1024/2048 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 AT24C01A/02/04/08/16 is available in space saving 8-pin PDIP, 8-pin
and 14-pin 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.
Pin Name Function
A
0
to A
2
Address Inputs
SDA Serial Data
SCL Serial Clock Input
WP Write Protect
NC No Connect
Pin Configurations
8-Pin PDIP
8-Pin SOIC
14-Pin SOIC
0180C
AT24C01A/02/04/08/16
32／75