Am29BDS323D

39

P R E L I M INARY

AC CHARACTERISTICS

Note: Breakpoints in waveforms indicate that system may alternately read array data from the “non-busy bank” while checking

the status of the program or erase operation in the “busy” bank. The system should read status twice to ensure valid information.

Figure 21.

Back-to-Back Read/Write Cycle Timings

OE#

CE#

WE#

A/DQ0:

A/DQ15

A16: A20

AVD#

PD/30h

PA/SA

AAh

555h

RA

PA/SA

Last Cycle in

Program or

Sector Erase

Command Sequence

Read status (at least two cycles) in same bank

and/or array data from other bank

Begin another

write or program

command sequence

RD

RA

RA

RA

RD