S29AL004D SPANSION, S29AL004D Datasheet - Page 46

• 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
Note:
read cycle.
Note:
read cycle, and array data read cycle.
44
Addresses
Addresses
DQ0–DQ6
DQ6/DQ2
RY/BY#
RY/BY#
WE#
DQ7
WE#
OE#
OE#
CE#
CE#
VA = Valid address. Illustration shows first status cycle after command sequence, last status read cycle, and array data
VA = Valid address; not required for DQ6. Illustration shows first two status cycle after command sequence, last status
t
t
t
t
BUSY
BUSY
CH
CH
t
t
OEH
OEH
Figure 19. Data# Polling Timings (During Embedded Algorithms)
Figure 20. Toggle Bit Timings (During Embedded Algorithms)
High Z
t
t
ACC
ACC
t
t
CE
CE
t
VA
t
t
VA
t
RC
OE
RC
OE
Valid Status
Complement
Status Data
(first read)
t
OH
t
OH
A d v a n c e
t
t
DF
DF
S29AL004D
(second read)
Valid Status
VA
VA
Complement
I n f o r m a t i o n
Status Data
True
True
(stops toggling)
Valid Status
VA
S29AL004D_00_A1 February 18, 2005
VA
Valid Data
Valid Data
Valid Data
VA
High Z
High Z