AM29F400BB-70SD Spansion Inc., AM29F400BB-70SD Datasheet - Page 34

• Manufacturer Part Number: AM29F400BB-70SD
• Description: Flash Memory IC
• Manufacturer: Spansion Inc.

Specifications of AM29F400BB-70SD

• Memory Size: 4Mbit
• Memory Configuration: 512K X 8 / 256K X 16
• Ic Interface Type: Parallel
• Access Time: 70ns
• Memory Case Style: SOIC
• No. Of Pins: 44
• Operating Temperature Range: 0°C To +70°C
• 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.
32
Addresses
Addresses
DQ0–DQ6
DQ6/DQ2
RY/BY#
RY/BY#
WE#
DQ7
WE#
OE#
OE#
CE#
CE#
t
t
t
t
BUSY
BUSY
CH
CH
t
t
OEH
OEH
Figure 15. Data# Polling Timings (During Embedded Algorithms)
Figure 16. 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
Complement
Status Data
Valid Status
(first read)
t
t
OH
OH
D A T A
t
DF
t
DF
Am29F400B
S H E E T
(second read)
Valid Status
VA
VA
Complement
Status Data
True
True
(stops toggling)
Valid Status
VA
21505E5 November 1, 2006
VA
Valid Data
Valid Data
Valid Data
VA
High Z
High Z