AT93C66-10PC-1.8 Просмотр технического описания (PDF) - Atmel Corporation

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AT93C66-10PC-1.8

3-wire Serial EEPROMs

Atmel Corporation 

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)

• 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)

• Self-timed Write Cycle (10 ms max)

• High Reliability

– Endurance: 1 Million Write Cycles

– Data Retention: 100 Years

• Automotive Grade and Extended Temperature Devices Available

• 8-lead PDIP, 8-lead JEDEC and EIAJ SOIC, and 8-lead TSSOP Packages

Description

The AT93C46/56/66 provides 1024/2048/4096 bits of serial electrically erasable pro-

grammable read only memory (EEPROM) organized as 64/128/256 words of 16 bits

each, when the ORG pin is connected to VCC 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 com-

mercial applications where low power and low voltage operations are essential. The

AT93C46/56/66 is available in space-saving 8-lead PDIP and 8-lead JEDEC and EIAJ

SOIC packages.

(continued)

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’t Connect

8-lead SOIC

Rotated (R)

(1K JEDEC Only)

DC 1

VCC 2

CS 3

SK 4

8 ORG

7 GND

6 DO

5 DI

8-lead PDIP

CS 1

SK 2

DI 3

DO 4

8 VCC

7 DC

6 ORG

5 GND

8-lead SOIC

CS 1

SK 2

DI 3

DO 4

8 VCC

7 DC

6 ORG

5 GND

8-lead TSSOP

CS 1

SK 2

DI 3

DO 4

8 VCC

7 DC

6 ORG

5 GND

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

AT93C66

Rev. 0172O–08/01

1

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