W19B(L)320ST/B
9.5 Programming Waveform
Program Command Sequence (last two cycles)
Read Status Data (last two cycles)
TWC
T
AS
PA
Address
PA
555h
PA
T
AH
#CE
#OE
T
CH
TWP
T
PW
TWPH
T
DH
#WE
T
CS
DS
T
D
Status
OUT
A0h
PD
Data
T
BUSY
T
RB
RY/#BY
VDD
T
VCS
Notes:
1. PA = program address, PD = program data, Dout is the true data at the program address.
2. Illustration shows device in word mode.
9.6 Accelerated Programming Waveform
V
HH
V
or
IL
V
IH
V
or
IL
V
IH
#WP/ACC
T
VHH
T
VHH
- 44 -