參數(shù)資料
型號(hào): AT93C57
廠商: Atmel Corp.
英文描述: 256 x 8 or 128 x 16 3-Wire Serial EEPROM(256 x 8或128 x 16 3線串行EEPROM)
中文描述: 256 × 8或128 × 16 3線串行EEPROM(256 × 8或128 × 16 3線串行EEPROM的)
文件頁(yè)數(shù): 1/16頁(yè)
文件大?。?/td> 265K
代理商: AT93C57
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)
User-selectable Internal Organization
1K: 128 x 8 or 64 x 16
2K: 256 x 8 or 128 x 16
4K: 512 x 8 or 256 x 16
3-wire Serial Interface
2 MHz Clock Rate (5V) Compatibility
Self-timed Write Cycle (10 ms max)
High Reliability
Endurance: 1 Million Write Cycles
Data Retention: 100 Years
ESD Protection: >4000V
Automotive Grade and Extended Temperature Devices Available
8-pin PDIP, 8-lead JEDEC and EIAJ SOIC, and 8-lead TSSOP Packages
Description
The AT93C46/56/57/66 provides 1024/2048/4096 bits of serial electrically erasable
programmable read only memory (EEPROM) organized as 64/128/256 words of 16
bits each, when the ORG pin is connected to V
CC
and 128/256/512 words of 8 bits
each when it is tied to ground. The device is optimized for use in many industrial and
commercial applications where low power and low voltage operations are essential.
The AT93C46/56/57/66 is available in space saving 8-pin PDIP and 8-lead JEDEC
and EIAJ SOIC packages.
Pin Configurations
3-wire Serial
EEPROMs
1K (128 x 8 or 64 x 16)
2K (256 x 8 or 128 x 16)
4K (512 x 8 or 256 x 16)
AT93C46
AT93C56
AT93C57
AT93C66
Rev. 0172L
10/99
Pin Name
Function
CS
Chip Select
SK
Serial Data Clock
DI
Serial Data Input
DO
Serial Data Output
GND
Ground
VCC
Power Supply
ORG
Internal Organization
DC
Don
t Connect
8-pin PDIP
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
8-lead SOIC
Rotated (R)
(1K JEDEC Only)
1
2
3
4
8
7
6
5
DC
VCC
CS
SK
ORG
GND
DO
DI
8-lead SOIC
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
(continued)
8-lead TSSOP
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
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