27C1024 View Datasheet(PDF) - Atmel Corporation

Part Name

Description

View to exact match

27C1024

1Mb (64K x 16) One-time Programmable Read-only Memory

Atmel Corporation 

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

tCES

tOES

tDS

tAH

tDH

tDFP

tVPS

tVCS

tPW

tOE

tPRT

Notes:

Address Setup Time

2

µs

CE Setup Time

2

µs

OE Setup Time

Input Rise and Fall Times

2

µs

Data Setup Time

(10% to 90%) 20 ns

2

µs

Address Hold Time

Input Pulse Levels

0

µs

Data Hold Time

0.45V to 2.4V

2

µs

OE High to Output Float Delay(2)

0

VPP Setup Time

Input Timing Reference Level

0.8V to 2.0V

2

130

ns

µs

VCC Setup Time

2

µs

PGM Program Pulse Width(3)

Output Timing Reference Level

95

105

µs

Data Valid from OE

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 AT27C1024 Integrated Product Identification Code

Codes

Manufacturer

Device Type

Pins

Hex

A0

O15-O8

O7 O6 O5 O4 O3 O2 O1 O0

Data

0

0

0

0

0

1

1

1

1

0

001E

1

0

1

1

1

1

0

0

0

1

00F1

8 AT27C1024

0019M–EPROM–12/07

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