AT27BV040(2007) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

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AT27BV040
(Rev.:2007)

4-Megabit (512K x 8) Unregulated Battery-Voltage High-Speed OTP EPROM

Atmel Corporation 

AT27BV040

16. 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

2

Input Rise and Fall Times:

(10% to 90%) 20 ns

2

Address Hold Time

0

Data Hold Time

Input Pulse Levels:

2

OE High to Output Float Delay(2)

0.45V to 2.4V

0

µs

µs

µs

µs

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)

Data Valid from OE(2)

95

105

µs

Output Timing Reference Level:

0.8V to 2.0V

150

ns

VPP Pulse Rise Time During

Programming

50

ns

1. VCC must be applied simultaneously or before VPP and removed simultaneously 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 100 µsec ± 5%.

17. Atmel’s AT27BV040 Integrated Product Identification Code(1)

Codes

Pins

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 AT27BV040 has the same Product Identification Code as the AT27C040. Both are programming compatible.

9

0346G–EPROM–12/07

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