W72M64VK-XBX Datasheet, PDF (13/16 Pages) White Electronic Designs Corporation – 2Mx64 3.3V Simultaneous Operation Flash Multi-Chip Package

White Electronic Designs
W72M64VK-XBX
FIGURE 14: ALTERNATE CS# CONTROLLED WRITE (ERASE/PROGRAM) OPERATION TIMINGS
Addresses
WE#
OE#
CS#
Data
RESET#
555 for Program PA for Program
2AA for Erase SA for Sector Erase
555 for Chip Erase
tWC
tWH
tAS
tAH
Data# Polling
PA
tGHEL
tWS
tDS
tCP
tCPH
tDH
tWHWH1 OR 2
tBUSY
tHR
A0 for Program
PD for Program
55 for Erase 30 for Sector Erase
10 for Chip Erase
DQ7# DOUT
RY/BY#
NOTES:
1. Figure indicates last two bus cycles of a program or erase operation.
2. PA = program address, SA = sector address, PD = program data.
3. DQ7 is the complement of the data written to the device. DOUT is the data written to the device.
April 2005
Rev. 0
13
White Electronic Designs Corporation • [phone] • www.wedc.com