AT27LV040A(2011) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

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AT27LV040A
(Rev.:2011)

4Mb (512K x 8) Low Voltage, One-time Programmable, Read-only Memory

Atmel Corporation 

Atmel AT27LV040A

4. Absolute maximum ratings*

Temperature under bias . . . . . . . . . . . . . . . -40°C to +85°C

Storage temperature . . . . . . . . . . . . . . . . .-65°C to +125°C

Voltage on any pin with

respect to ground . . . . . . . . . . . . . . . . . . . -2.0V to +7.0V(1)

Voltage on A9 with

respect to ground . . . . . . . . . . . . . . . . . -2.0V to +14.0V(1)

*NOTICE:

Stresses beyond those listed under “Absolute

maximum ratings” may cause permanent damage to

the device. This is a stress rating only, and functional

operation of the device at these or any other conditions

beyond those indicated in the operational sections of

this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may

affect device reliability.

VPP supply voltage with

respect to ground . . . . . . . . . . . . . . . . . . -2.0V to +14.0V(1)

Note:

1. Minimum voltage is -0.6V DC, which may undershoot to -2.0V for pulses of less than 20ns. Maximum output pin voltage is

VCC + 0.75V DC, which may be exceeded if certain precautions are observed (consult application notes), and which may

overshoot to +7.0V for pulses of less than 20ns.

5. DC and AC characteristics

Table 5-1. Operating modes

Mode/Pin

CE

OE

Ai

VPP

VCC

Outputs

Read(2)

VIL

VIL

Ai

X(1)

VCC

DOUT

Output disable(2)

X

VIH

X

X

VCC

High Z

Standby(2)

VIH

X

X

X

VCC

High Z

Rapid program(3)

VIL

VIH

Ai

VPP

VCC

DIN

PGM verify(3)

X

VIL

Ai

VPP

VCC

DOUT

PGM inhibit(3)

VIH

VIH

X

VPP

VCC

High Z

A9 = VH(4)

Product identification(3)(5)

VIL

VIL

A0 = VIH or VIL

X

VCC

Identification code

A1 - A18 = VIL

Notes:

1. X can be VIL or VIH.

2. Read, output disable, and standby modes require 3.0V  VCC  3.6V or 4.5V  VCC  5.5V.

3. Refer to programming characteristics. Programming modes require VCC = 6.5V.

4. VH = 12.0 ± 0.5V.

5. Two identifier bytes may be selected. All Ai inputs are held low (VIL) except A9, which is set to VH, and A0, which is tog-

gled low (VIL) to select the manufacturer’s identification byte and high (VIH) to select the device code byte.

Table 5-2. DC and AC operating conditions for read operation

Industrial operating temperature (case)

VCC power supply

Atmel AT27LV040A-90

-40°C - 85°C

3.0V to 3.6V

5V  10%

3

0557E–EPROM–4/11

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