AT27BV020-90JI(2001) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

View to exact match

AT27BV020-90JI
(Rev.:2001)

2-Megabit (256K x 8) Unregulated Battery-Voltage High Speed OTP EPROM

Atmel Corporation 

AC Programming Characteristics

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

Symbol

tAS

tCES

tOES

tDS

tAH

tDH

tDFP

tVPS

tVCS

tPW

tOE

tPRT

Parameter

Address Setup Time

CE Setup Time

OE Setup Time

Data Setup Time

Address Hold Time

Data Hold Time

OE High to Output Float Delay(3)

VPP Setup Time

VCC Setup Time

PGM Program Pulse Width(2)

Data Valid from OE

VPP Pulse Rise Time During

Programming

Test Conditions(1)

Input Rise and Fall Times:

(10% to 90%) 20ns

Input Pulse Levels:

0.45V to 2.4V

Input Timing Reference Level:

0.8V to 2.0V

Output Timing Reference Level:

0.8V to 2.0V

Limits

Min

Max

2

2

2

2

0

2

0

130

2

2

95

105

150

50

Units

µs

µs

µs

µs

µs

µs

ns

µs

µs

µs

ns

ns

Notes:

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%.

Atmel’s 27BV020 Integrated Product Identification Code(1)

Codes

Pins

Hex

A0

O7

O6

O5

O4

O3

O2

O1

O0

Data

Manufacturer

0

0

0

0

1

1

1

1

0

1E

Device Type

1

1

0

0

0

0

1

1

0

86

Note: 1. The AT27BV020 has the same Product Identification Code as the AT27C020. Both are programming compatible.

8

AT27BV020

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