AT28C040-20 datasheet(4/12 Pages) ATMEL

Part #	AT28C040-20

Description	4-Megabit 512K x 8 Paged E2PROM

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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AT28C040

4

Notes:

1. X can be V

IL or VIH.

2. Refer to AC Programming Waveforms.

DC and AC Operating Range

AT28C040-20

AT28C040-25

Operation

Read

Program

Read

Program

Operating

Temperature

(Case)

Commercial

0°C - 70°C

Industrial

-40°C - 85°C

Extended

-55°C - 125°C

-40°C - 85°C

-55°C - 125°C

-40°C - 85°C

V

CC Power Supply

5V

± 10%

5V

± 10%

5V

± 10%

5V

± 10%

Operating Modes

Mode

CE

OE

WE

I/O

Read

V

IL

V

IL

V

IH

D

OUT

Write(2)

V

IL

V

IH

V

IL

D

IN

Standby/Write Inhibit

V

IH

X(1)

XHigh Z

Write Inhibit

X

V

IH

Write Inhibit

X

V

IL

X

Output Disable

X

V

IH

XHigh Z

DC Characteristics

Symbol

Parameter

Condition

Min

Max

Units

I

LI

Input Load Current

V

IN = 0V to VCC + 1V

10

µA

I

LO

Output Leakage Current

V

I/O = 0V to VCC

10

µA

I

SB1

V

CC Standby Current CMOS

CE = V

CC - 0.3V to VCC + 1V

3

mA

I

SB2

V

CC Standby Current TTL

CE = 2.0V to V

CC + 1V

3

mA

I

CC

V

CC Active Current

f = 5 MHz; I

OUT = 0 mA

80

mA

V

IL

Input Low Voltage

0.8

V

IH

Input High Voltage

2.0

V

OL

Output Low Voltage

I

OL = 2.1 mA

0.45

V

OH1

Output High Voltage

I

OH = -400 µA2.4

V

OH2

Output High Voltage CMOS

I

OH = -100 µA; VCC = 4.5V

4.2

V

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