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AT27C2048

2-Megabit (128K x 16) OTP EPROM

Atmel Corporation 

AT27C2048

AC Programming Characteristics

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

Test Conditions(1)

Symbol Parameter

AC Conditions of Test

tAS

tOES

tDS

tAH

tDH

tDFP

tVPS

tVCS

tPW

tOE

tPRT

Address Setup Time

OE Setup Time

Data Setup Time

Address Hold Time

Data Hold Time

OE High to Output Float Delay(2)

VPP Setup Time

VCC Setup Time

PGM Program Pulse Width(3)

Data Valid from OE

VPP Pulse Rise Time During

Programming

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

0

2

0

130

2

2

47.5

52.5

150

50

Units

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 50 µsec ± 5%.

Atmel’s 27C2048 Intergrated Product Identification Code

Codes

Manufacturer

Device Type

Pins

A0 015-08 O7 O6 O5 O4 O3 O2 O1 O0

0

0

0

0

0

1

1

1

1

0

1

0

1

1

1

1

0

1

1

1

Hex

Data

001E

00F7

7

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