AT27C800

8

AC Programming Characteristics

T

Notes:

1.

V

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

µs ± 5%.

Symbol

Parameter

Limits

Units

Min

Max

t

AS

Address Setup Time

Input Rise and Fall Times:

(10% to 90%) 20 ns.

Input Pulse Levels:

45V to 2.4V

Input Pulse Levels:

0.8V to 2.0V

Input Timing Reference Level:

0.8V to 2.0V

Output Timing Reference Level:

0.8V to 2.0V

2

µs

t

OES

OE Setup Time

2

µs

t

DS

Data Setup Time

2

µs

t

AH

Address Hold Time

0

µs

t

DH

Data Hold Time

2

µs

t

DFP

0

130

ns

t

VPS

V

2

µs

t

VCS

V

2

µs

t

PW

47.5

52.5

µs

t

OE

Data Valid from OE

150

ns

t

PRT

BYTE /V

Programming

50

ns

Atmel’s 27C800 Integrated Product Identification Code

Codes

Pins

Hex Data

A0

015

014

013

012

011

010

09

08

07

06

05

04

03

02

01

00

Manufacturer

000011110

1E1E

Device Type

111111000

F8F8