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AT93C56A Datasheet

  • AT93C56A

  • Three-wire Serial EEPROMs

  • 19頁

  • ATMEL   ATMEL

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Features
鈥?/div>
Low-voltage and Standard-voltage Operation
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?2.7 (V
CC
= 2.7V to 5.5V)
鈥?1.8 (V
CC
= 1.8V to 5.5V)
User-selectable Internal Organization
鈥?2K: 256 x 8 or 128 x 16
鈥?4K: 512 x 8 or 256 x 16
3-wire Serial Interface
Sequential Read Operation
2 MHz Clock Rate (5V)
Self-timed Write Cycle (10 ms Max)
High Reliability
鈥?Endurance: 1 Million Write Cycles
鈥?Data Retention: 100 Years
Automotive Grade, Extended Temperature, and Lead-free/Halogen-free
Devices Available
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead MAP, 8-lead TSSOP,
and 8-ball dBGA2
鈩?/div>
Packages
3-wire Serial
EEPROMs
2K (256 x 8 or 128 x 16)
4K (512 x 8 or 256 x 16)
Description
The AT93C56A/66A provides 2048/4096 bits of serial electrically erasable program-
mable read-only memory (EEPROM) organized as 128/256 words of 16 bits each
when the ORG pin is connected to VCC and 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
AT93C56A/66A is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead
EIAJ SOIC, 8-lead MAP, 8-lead TSSOP, and 8-ball dBGA2鈩?packages.
AT93C56A
AT93C66A
Advance
Information
Pin Configurations
Pin Name
CS
SK
DI
DO
GND
VCC
ORG
DC
Function
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Internal Organization
Don鈥檛 Connect
8-lead MAP
8-lead PDIP
8-lead TSSOP
CS
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
DC
ORG
GND
8-ball dBGA2
VCC
DC
ORG
GND
8
7
6
5
1
2
3
4
8-lead SOIC
CS
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
DC
ORG
GND
CS
SK
DI
DO
Bottom View
VCC
DC
ORG
GND
8
7
6
5
1
2
3
4
CS
SK
DI
DO
CS
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
DC
ORG
GND
Rev. 3378F鈥揝EEPR鈥?4/04
Bottom View
1

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