Write algorithm(1), At28bv64b, Write algorith m – Rainbow Electronics AT28BV64B User Manual

Page 7: Page mode characteristics

Advertising
background image

AT28BV64B

7

Write Algorithm

(1)

Notes for software program code:

1.

Data Format: I/O7 - I/O0 (Hex); Address Format: A12 - A0 (Hex).

2.

Data protect state will be re-activated at the end of the write cycle.

3.

1 to 64 bytes of data are loaded.

Page Mode 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

100

ns

t

DS

Data Set-up Time

100

ns

t

DH

Data Hold Time

0

ns

t

WP

Write Pulse Width

200

ns

t

BLC

Byte Load Cycle Time

100

µs

t

WPH

Write Pulse Width High

100

ns

LOAD DATA AA

TO

ADDRESS 1555

LOAD DATA 55

TO

ADDRESS 0AAA

LOAD DATA A0

TO

ADDRESS 1555

LOAD DATA XX

TO

ANY ADDRESS

(3)

LOAD LAST BYTE

TO

LAST ADDRESS

ENTER DATA

PROTECT STATE

WRITES ENABLED

(2)

Advertising