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Rainbow Electronics AT27LV040A User Manual

Features, Description, Pin configurations

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Features

Fast Read Access Time - 90 ns

Dual Voltage Range Operation

– Low Voltage Power Supply Range, 3.0V to 3.6V

or Standard 5V

±

10% Supply Range

Compatible With JEDEC Standard AT27C040

Low Power 3.3-volt CMOS Operation

– 20 µA max. (less than 1 µA typical) Standby for V

CC

= 3.6V

– 36 mW max. Active at 5 MHz for V

CC

= 3.6V

JEDEC Standard Packages

– 32-Lead PLCC
– 32-Lead TSOP (8 x 20 mm)
– 32-Lead VSOP (8 x 14 mm)

High Reliability CMOS Technology

– 2,000V ESD Protection
– 200 mA Latchup Immunity

Rapid™ Programming Algorithm - 100 µs/byte (typical)

CMOS and TTL Compatible Inputs and Outputs

– JEDEC Standard for LVTTL

Integrated Product Identification Code

Commercial and Industrial Temperature Ranges

Description

The AT27LV040A is a high performance, low power, low voltage, 4,194,304-bit one-
time programmable read only memory (OTP EPROM) organized as 512K by 8 bits. It
requires only one supply in the range of 3.0 to 3.6V in normal read mode operation,
making it ideal for fast, portable systems using battery power.

Atmel’s innovative design techniques provide fast speeds that rival 5V parts while
keeping the low power consumption of a 3V supply. At V

CC

= 3.0V, any byte can be

accessed in less than 90 ns. With a typical power dissipation of only 18 mW at 5 MHz
and V

CC

= 3.3V, the AT27LV040A consumes less than one half the power of a stan-

dard 5V EPROM. Standby mode supply current is typically less than 1

µ

A at 3.3V.

4-Megabit
(512K x 8)
Low Voltage
OTP EPROM

AT27LV040A

Rev. 0557B–10/98

Pin Configurations

Pin Name

Function

A0 - A18

Addresses

O0 - O7

Outputs

CE

Chip Enable

OE

Output Enable

TSOP, VSOP Top View

Type 1

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

A11

A9

A8

A13

A14

A17

A18

VCC

VPP

A16

A15

A12

A7

A6

A5

A4

OE

A10

CE

O7

O6

O5

O4

O3

GND

02

01

O0

A0

A1

A2

A3

PLCC Top View

5

6

7

8

9

10

11

12

13

29

28

27

26

25

24

23

22

21

A7

A6

A5

A4

A3

A2

A1

A0

O0

A14

A13

A8

A9

A11

OE

A10

CE

O7

4

3

2

1

32

31

30

14

15

16

17

18

19

20

O1

O2

GND

O3

O4

O5

O6

A12

A15

A16

VPP

VCC

A18

A17

(continued)