AM29F004BB-90JE 查看數據表（PDF） - Spansion Inc.
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AM29F004BB-90JE Datasheet PDF : 37 Pages
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DATA SHEET
Table 5. Am29F004B Command Definitions
Command
Sequence
(Note 1)
Read (Note 5)
Reset (Note 6)
Manufacturer ID
Autoselect
(Note 7)
Device ID,
Top Boot Block
Device ID,
Bottom Boot Block
Sector Protect Verify
(Note 8)
Program
Chip Erase
Sector Erase
Erase Suspend (Note 11)
Erase Resume (Note 12)
Temporary Enter TSU Mode
Sector
Program
Unprotect
Mode (Note Sector Erase
9)
Chip Erase
Sector Unlock (Note 9)
Sector Relock (Notes 9, 10)
First
Second
Addr Data Addr Data
1 RA RD
1 XXX F0
4 555 AA 2AA 55
4 555 AA 2AA 55
Bus Cycles (Notes 2–4)
Third
Fourth
Addr Data Addr Data
Fifth
Addr Data
Sixth
Addr Data
555
90 X00 01
555
90 X01 77
4 555 AA 2AA 55
4 555 AA 2AA 55
4 555 AA 2AA 55
6 555 AA 2AA 55
6 555 AA 2AA 55
1 XXX B0
1 XXX 30
3 555 AA 2AA 55
2 XXX A0 PA PD
4 XXX 80 XXX AA
4 XXX 80 XXX AA
3 555 AA 2AA 55
2 XXX 90 XXX 00
555
555
555
555
555
555
XXX
XXX
555
90 X01 7B
90
(SA)
X02
00
01
A0 PA PD
80 555 AA 2AA 55 555 10
80 555 AA 2AA 55 SA 30
20
55 SA 30
55 555 10
24 SA+ 60 SA+ 60 SA+ 40
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.
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 A18–A13 uniquely select any sector.
SA+ = The sector address must be asserted in combination with A0
= 0, A1 = 1, A5 = 1, and A6 = 0 (for protect) or 1 (for unprotect).
Notes:
1. See Table 1 for description of bus operations.
2. All values are in hexadecimal.
3. Except when reading array or autoselect data, all bus cycles are
write operations.
4. Address bits A18–A11 are don’t cares for unlock and command
cycles, except when PA or SA is required.
5. No unlock or command cycles required when reading array data.
6. The Reset command is required to return to reading array data
when device is in the autoselect mode, or if DQ5 goes high (while
the device is providing status data).
7. The fourth cycle of the autoselect command sequence is a read
cycle.
8. The data is 00h for an unprotected sector and 01h for a protected
sector. See Autoselect Command Sequence on page 13 for
more information.
9. To activate the sequence, OE# must be at VID.
10. The sector relock command in the second cycle may be written
as either 00h or F0h.
11. The system may read and program in non-erasing sectors, or
enter the autoselect mode, when in the Erase Suspend mode.
The Erase Suspend command is valid only during a sector erase
operation.
12. The Erase Resume command is valid only during the Erase Sus-
pend mode.
16
Am29F004B
Am29F004B_00_E4 May 9, 2006
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