AM29F002BT-70JC Spansion Inc., AM29F002BT-70JC Datasheet - Page 19

• Manufacturer Part Number: AM29F002BT-70JC
• Description: Flash Memory IC
• Manufacturer: Spansion Inc.

Specifications of AM29F002BT-70JC

• Memory Size: 2Mbit
• Memory Configuration: 256K X 8
• Ic Interface Type: Parallel
• Access Time: 70ns
• Memory Case Style: PLCC
• No. Of Pins: 32
• Operating Temperature Range: 0°C To +70°C
• Termination Type: SMD

Command Definitions
Legend :
X = Don’t care
RA = Address of the memory location to be read.
RD = Data read from location RA during read operation.
PA = Address of the memory location to be programmed.
Addresses latch on the falling edge of the WE# or CE# pulse,
whichever happens later.
Notes:
1. See
2. All values are in hexadecimal.
3. Except when reading array or autoselect data, all bus cycles
4. Address bits A17–A11 are don’t cares for unlock and
5. No unlock or command cycles required when reading array
6. The Reset command is required to return to reading array
Read
Reset (
Auto-
select
(Note
Program
Chip Erase
Sector Eras e
Erase Sus pend
Erase Resume
are write operations.
command cycles, except when PA or SA is required.
data.
data when device is in the autoselect mode, or if DQ5 goes
high (while the device is providing status data).
(Note
7)
Note
Table 1
Manufac turer ID
Devic e ID,
Top Boot Block
Devic e ID,
Bottom Boot Block
Sector Protect Verify
5)
6)
(Note
(Note
for description of bus operations.
Com mand
Sequence
(Note
10)
9)
1)
Ta b le 5 .
(Note
8)
A m 29 F 002 B /A m 29 F 00 2N B C o m m an d D efin ition s
1
1
4
4
4
4
4
6
6
1
1
Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data
A m 29 F 002 B /A m 29 F 00 2N B
XXX
XXX
XXX
555
555
555
555
555
555
555
RA
First
RD
AA
AA
AA
AA
AA
AA
AA
F0
B0
30
2AA
2AA
2AA
2AA
2AA
2AA
2AA
Second
PD = Data to be programmed at location PA. Data latches on the
rising edge of WE# or CE# pulse, whichever happens first.
SA = Address of the sector to be verified (in autoselect mode) or
erased. Address bits A17–A13 uniquely select any sector.
7. The fourth cycle of the autoselect command sequence is a
8. The data is 00h for an unprotected sector and 01h for a
9. The system can read and program in non-erasing sectors, or
10. The Erase Resume command is valid only during the Erase
55
55
55
55
55
55
55
read cycle.
protected sector. See “Autoselect Command Sequence” for
more information.
enter the autoselect mode, when in the Erase Suspend
mode. The Erase Suspend command is valid only during a
sector erase operation.
Suspend mode.
Bus Cycles (Notes 2–4)
555
555
555
555
555
555
555
Third
90
90
90
90
A0
80
80
(SA)
X00
X01
X01
X02
555
555
PA
Fourth
PD
AA
AA
01
B0
34
00
01
2AA
2AA
Fifth
55
55
555
SA
Sixth
10
30
17