S29AL004D SPANSION, S29AL004D Datasheet - Page 44

• Manufacturer Part Number: S29AL004D
• Description: 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
• Manufacturer: SPANSION

AC Characteristics
42
Notes:
1. PA = program address, PD = program data, D
2. Illustration shows device in word mode.
Addresses
RY/BY#
WE#
Data
OE#
CE#
V
CC
t
VCS
Program Command Sequence (last two cycles)
555h
t
CS
t
WC
t
WP
t
DS
A0h
Figure 17. Program Operation Timings
t
DH
t
CH
t
WPH
A d v a n c e
t
AS
OUT
PA
S29AL004D
is the true data at the program address.
t
AH
PD
I n f o r m a t i o n
t
BUSY
t
WHWH1
Read Status Data (last two cycles)
PA
Status
S29AL004D_00_A1 February 18, 2005
D
OUT
PA
t
RB