M28C64

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Figure 13. Page Write Mode AC Waveforms (Write Enable, W, controlled)

Figure 14. Software Protected Write Cycle Waveforms

Note: 1. A12 to A6 must specify the same page address during each high-to-low transition of W (or E). G must be high only when W and E

are both low.

tQ5HQ5X

AI00752D

A0-A12

E

G

DQ0-DQ7 (in)

W

Addr 0

DQ5 (out)

RB

Addr 1

Addr 2

Addr n

tWLQ5H

tWLWH

tWHWL

tWHRL

Byte 0

Byte 1

Byte 2

Byte n

AI01358B

A0-A5

E

G

DQ0-DQ7

W

tWLWH

tDVWH

Byte 0

tWHWL

A6-A12

tWLAX

tWHDX

tAVEL

1555h

0AAAh

1555h

Byte 62

Byte 63

AAh

55h

A0h

Byte Address

Page Address