A29040B-90U AMICC [AMIC Technology], A29040B-90U Datasheet - Page 19

• Manufacturer Part Number: A29040B-90U
• Description: 512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory
• Manufacturer: AMICC [AMIC Technology]

Timing Waveforms for Program Operation
Timing Waveforms for Chip/Sector Erase Operation
PRELIMINARY
Note : SA = Sector Address. VA = Valid Address for reading status data.
Addresses
Addresses
Note : PA = program addrss, PD = program data, Dout is the true data at the program address.
Data
VCC
Data
VCC
WE
WE
OE
OE
CE
CE
(December, 2004, Version 0.2)
t
t
VCS
VCS
Program Command Sequence (last two cycles)
Erase Command Sequence (last two cycles)
2AAh
555h
t
t
CS
CS
t
t
t
t
WC
WC
GHWL
GHWL
t
t
t
WP
t
WP
t
t
DS
DS
CH
CH
A0h
55h
555h for chip erase
t
t
WPH
AS
t
WPH
t
AS
t
SA
t
PA
DH
DH
10h for chip erase
t
PD
AH
18
30h
t
AH
t
WHWH1
Read Status Data (last two cycles)
t
WHWH2
PA
VA
Progress
AMIC Technology, Corp.
Status
Read Status Data
In
A29040B Series
Complete
VA
PA
D
OUT