AT27C1024-45PI datasheet(3/9 Pages) ATMEL

Part #	AT27C1024-45PI

Description	1-Megabit 64K x 16 OTP EPROM

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Manufacturer	ATMEL [ATMEL Corporation]

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AT27C1024

3

Block Diagram

Absolute Maximum Ratings*

Temperature Under Bias ...................... -55

°C to +125°C

*NOTICE:

Stresses beyond those listed under “Absolute Maxi-

mum 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 condi-

tions beyond those indicated in the operational sec-

tions of this specification is not implied. Exposure to

absolute maximum rating conditions for extended

periods may affect device reliability.

Note:

Minimum voltage is -0.6V DC which may undershoot to

-2.0V for pulses of less than 20 ns. Maximum output pin

voltage is VCC + 0.75V DC which may overshoot to +7.0V

for pulses of less than 20 ns.

Storage Temperature............................ -65

°C to +150°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)

VPP Supply Voltage with

Respect to Ground ............................-2.0V to +14.0V (1)

Operating Modes

Notes:

1. X can be VIL or VIH.

2. Refer to Programming Characteristics.

3. VH = 12.0 ± 0.5V.

4. Two identifier words may be selected. All Ai inputs are held low (VIL), except A9 which is set to VH and A0 which is toggled

low (VIL) to select the Manufacturer’s Identification word and high (VIH) to select the Device Code word.

5. Standby VCC current (ISB) is specified with VPP = VCC. VCC > VPP will cause a slight increase in ISB.

Mode/Pin

CE

OE

PGM

Ai

VPP

Outputs

Read

VIL

X(1)

Ai

X

DOUT

Output Disable

X

VIH

XX

X

High Z

Standby

VIH

XX

X

X(5)

High Z

Rapid Program(2)

VIL

VIH

VIL

Ai

VPP

DIN

PGM Verify

VIL

VIH

Ai

VPP

DOUT

PGM Inhibit

VIH

XX

X

VPP

High Z

Product Identification(4)

VIL

X

A9 = VH

(3)

A0 = VIH or VIL

A1 - A15 = VIL

VCC

Identification Code

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AT27C1024-45PI Datasheet(PDF) 3 Page - ATMEL Corporation

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