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

Table 5-6. DC programming characteristics

TA = 25 5°C, VCC = 6.5  0.25V, VPP = 13.0 0.25V

Symbol

ILI

VIL

VIH

VOL

VOH

ICC2

IPP2

VID

Parameter

Input load current

Input low level

Input high level

Output low voltage

Output high voltage

VCC supply current (program and verify)

VPP supply current

A9 product identification voltage

Test conditions

VIN=VIL,VIH

IOL = 2.1mA

IOH = -400µA

CE = VIL

Limits

Min

Max

10

-0.6

0.8

2.0

VCC + 0.5

0.4

2.4

40

20

11.5

12.5

Units

µA

V

V

V

V

mA

mA

V

Table 5-7. AC programming characteristics

TA = 255°C, VCC = 6.5 0.25V, VPP = 13.0 0.25V

Symbol

Parameter

Test conditions(1)

Limits

Min

Max

Units

tAS

tOES

tDS

tAH

tDH

tDFP

tVPS

tVCS

tPW

tOE

tPRT

Notes:

Address setup time

2

µs

OE setup time

Data setup time

Address hold time

Data hold time

OE high to output float delay(2)

Input rise and fall times

(10% to 90%) 20ns

Input pulse levels

.0.45V to 2.4V

2

µs

2

µs

0

µs

2

µs

0

130

ns

VPP setup time

Input timing reference level

2

µs

VCC setup time

0.8V to 2.0V

2

µs

CE program pulse width(3)

95

105

µs

Output timing reference level

Data valid from OE(2)

0.8V to 2.0V

150

ns

VPP pulse rise time during

programming

50

ns

1. VCC must be applied simultaneously with or before VPP and removed simultaneously with or after VPP.

2. This parameter is only sampled, and is not 100% tested. Output float is defined as the point where data is no longer driven.

See timing diagram.

3. Program pulse width tolerance is 100µsec5%.

Table 5-8. The Atmel AT27LV040A integrated product identification code(1)

Pins

Codes

A0

O7

O6

O5

O4

O3

O2

O1

O0 Hex data

Manufacturer

0

0

0

0

1

1

1

1

0

1E

Device type

1

0

0

0

0

1

0

1

1

0B

Note: 1. The Atmel AT27LV040A has the same product identification code as the Atmel AT27C040. Both are programming

compatible.

7

0557E–EPROM–4/11

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