Program cycle characteristics, Program cycle waveforms(1)(2)(3), Program cycle wavefo rms – Rainbow Electronics AT29C020 User Manual

Page 9

Advertising
background image

9

AT29C020

0291N–FLASH–07/02

Program Cycle Waveforms

(1)(2)(3)

Notes:

1. A8 through A17 must specify the sector address during each high-to-low transition of WE (or CE).
2. OE must be high when WE and CE are both low.
3. All words that are not loaded within the sector being programmed will be indeterminate.

Program Cycle Characteristics

Symbol

Parameter

Min

Max

Units

t

WC

Write Cycle Time

10

ms

t

AS

Address Set-up Time

0

ns

t

AH

Address Hold Time

50

ns

t

DS

Data Set-up Time

50

ns

t

DH

Data Hold Time

0

ns

t

WP

Write Pulse Width

90

ns

t

BLC

Byte Load Cycle Time

150

µs

t

WPH

Write Pulse Width High

100

ns

Advertising