AT27C020 Datasheet_PDF文件下载_芯片资料查询

鈥?100

碌A

max. Standby

鈥?25 mA max. Active at 5 MHz

JEDEC Standard Packages

鈥?32-Lead 600-mil PDIP

鈥?32-Lead PLCC

鈥?32-Lead TSOP

5V

卤

10% Supply

High-Reliability CMOS Technology

鈥?2,000V ESD Protection

鈥?200 mA Latchup Immunity

Rapid

鈩?/div>

Programming Algorithm - 100

碌s/byte

(typical)

CMOS and TTL Compatible Inputs and Outputs

Integrated Product Identification Code

Commercial and Industrial Temperature Ranges

鈥?/div>

2-Megabit

(256K x 8)

OTP EPROM

AT27C020

Description

The AT27C020 is a low-power, high performance 2,097,152-bit one-time programma-

ble read only memory (OTP EPROM) organized as 256K by 8 bits. It requires only

one 5V power supply in normal read mode operation. Any byte can be accessed in

less than 55 ns, eliminating the need for speed reducing WAIT states on high perfor-

mance microprocessor systems.

In read mode, the AT27C020 typically consumes 8 mA. Standby mode supply current

is typically less than 10

碌

A.

PLCC Top View

Pin Name

A0 - A17

O0 - O7

CE

OE

PGM

Function

Addresses

Outputs

Chip Enable

Output Enable

Program Strobe

A7

A6

A5

A4

A3

A2

A1

A0

O0

A12

A15

A16

VPP

VCC

PGM

A17

Pin Configurations

PDIP Top View

VPP

A16

A15

A12

A7

A6

A5

A4

A3

A2

A1

A0

O0

O1

O2

GND

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

VCC

PGM

A17

A14

A13

A8

A9

A11

OE

A10

CE

07

06

05

04

03

A11

A9

A8

A13

A14

A17

PGM

VCC

VPP

A16

A15

A12

A7

A6

A5

A4

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

TSOP Top View

Type 1

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

OE

A10

CE

07

06

05

04

03

GND

02

01

O0

A0

A1

A2

A3

01

02

GND

03

04

05

06

14

15

16

17

18

19

20

5

6

7

8

9

10

11

12

13

4

3

2

1

32

31

30

29

28

27

26

25

24

23

22

21

A14

A13

A8

A9

A11

OE

A10

CE

07

Rev. 0570C-B鈥?2/97

1

型号

版本

描述

厂商

下载
AT272

英文版

Analog IC

ETC

AT272
AT27C010

英文版

1 Megabit 128K x 8 OTP CMOS EPROM

AT27C010
AT27C010

英文版

1 Megabit 128K x 8 OTP CMOS EPROM

ATMEL [ATM...

AT27C010
AT27C020

英文版

2-megabit (256K x 8) OTP EPROM

AT27C020
AT27C040

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4-Megabit (512K x 8) OTP EPROM

AT27C040
AT27C080

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8-Megabit (1M x 8) OTP EPROM

AT27C080
AT27C256

英文版

ATMEL Corporation [256K 32K x 8 OTP CMOS EPROM]

AT27C256
AT27C400

英文版

4-Megabit 256K x 16 or 512K x 8 OTP EPROM

AT27C400
AT27C400

英文版

4-Megabit 256K x 16 or 512K x 8 OTP EPROM

ATMEL [ATM...

AT27C400
AT27C516

英文版

512K (32K x 16) OTP EPROM

AT27C516
AT27C520

英文版

ATMEL Corporation [512K 64K x 8 Multiplexed Addresses/ Outp...

AT27C520
AT27C800

英文版

8-Megabit 512K x 16 or 1024K x 8 UV Erasable EPROM

AT27C800
AT27C800

英文版

8-Megabit 512K x 16 or 1024K x 8 UV Erasable EPROM

ATMEL [ATM...

AT27C800
AT27CXXX

英文版

AT27CXXX Series [Updated 10/98. 1 Pages]

ETC

AT27CXXX
AT27BV010

英文版

1 Megabit 128K x 8 Unregulated Battery-Voltage OTP CMOS EPRO...

AT27BV010
AT27BV010

英文版

1 Megabit 128K x 8 Unregulated Battery-Voltage OTP CMOS EPRO...

ATMEL [ATM...

AT27BV010
AT27BV020

英文版

2-Megabit 256K x 8 Unregulated Battery-Voltage High Speed OT...

AT27BV020
AT27BV020

英文版

2-Megabit 256K x 8 Unregulated Battery-Voltage High Speed OT...

ATMEL [ATM...

AT27BV020
AT27BV040

英文版

4 Megabit 512K x 8 Unregulated Battery-Voltage High Speed OT...

AT27BV040
AT27BV040

英文版

4 Megabit 512K x 8 Unregulated Battery-Voltage High Speed OT...

ATMEL [ATM...

AT27BV040

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