AM29F040B-55JF Spansion Inc., AM29F040B-55JF Datasheet - Page 27

• Manufacturer Part Number: AM29F040B-55JF
• Description: IC, FLASH, 4MBIT, 55NS, LCC-32
• Manufacturer: Spansion Inc.

Specifications of AM29F040B-55JF

• Memory Type: Flash
• Memory Size: 4Mbit
• Memory Configuration: 512K X 8
• Access Time: 55ns
• Supply Voltage Range: 4.75V To 5.25V
• Memory Case Style: PLCC
• No. Of Pins: 32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC CHARACTERISTICS
Note: VA = Valid address. Illustration shows first status cycle after command sequence, last status read cycle, and array data
read cycle .
Note:
VA = Valid address; not required for DQ6. Illustration shows first two status cycle after command sequence, last status read cycle,
and array data read cycle.
November 11, 2009 21445E8
Addresses
Addresses
DQ6/DQ2
DQ0–DQ6
WE#
WE#
DQ7
OE#
CE#
OE#
CE#
t
t
CH
CH
Figure 11. Data# Polling Timings (During Embedded Algorithms)
t
t
OEH
OEH
Figure 12. Toggle Bit Timings (During Embedded Algorithms)
High Z
t
t
ACC
ACC
t
t
CE
CE
t
VA
t
VA
t
t
RC
OE
RC
OE
Complement
Valid Status
Status Data
(first read)
D A T A
t
t
OH
OH
t
t
DF
DF
Am29F040B
S H E E T
(second read)
Valid Status
VA
VA
Complement
Status Data
True
True
(stops toggling)
Valid Status
VA
VA
Valid Data
Valid Data
Valid Data
VA
High Z
High Z
25