MX29F004B Просмотр технического описания (PDF) - Macronix International
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MX29F004B Datasheet PDF : 39 Pages
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MX29F004T/B
TABLE1. SOFTWARE COMMAND DEFINITIONS
Command
Reset
Read
Read Silicon ID
Chip Protect Verify
Program
Chip Erase
Sector Erase
Sector Erase Suspend
Sector Erase Resume
Unlock for chip
protect/unprotect
Bus
Cycle
1
1
4
4
First Bus
Cycle
Addr Data
XXXH F0H
RA RD
555H AAH
555H AAH
Second Bus
Cycle
Addr Data
2AAH 55H
2AAH 55H
Third Bus
Cycle
Addr Data
555H 90H
555H 90H
4
555H AAH 2AAH 55H 555H A0H
6
555H AAH 2AAH 55H 555H 80H
6
555H AAH 2AAH 55H 555H 80H
1
XXXH B0H
1
XXXH 30H
6
555H AAH 2AAH 55H 555H 80H
Fourth Bus Fifth Bus
Cycle
Cycle
Addr Data Addr Data
Sixth Bus
Cycle
Addr Data
ADI DDI
SA 00H
x02 01H
PA PD
555H AAH 2AAH 55H
555H AAH 2AAH 55H
555H 10H
SA 30H
555H AAH 2AAH 55H 555H 20H
Note:
1. ADI = Address of Device identifier; A1=0, A0 = 0 for manufacture code,A1=0, A0 =1 for device code A2~A18=Do not care.
(Refer to table 3)
DDI = Data of Device identifier : C2H for manufacture code, 45H/46H for device code.
X = X can be VIL or VIH
RA=Address of memory location to be read.
RD=Data to be read at location RA.
2. PA = Address of memory location to be programmed.
PD = Data to be programmed at location PA.
SA = Address to the sector to be erased.
3. The system should generate the following address patterns: 555H or 2AAH to Address A10~A0.
Address bit A11~A18=X=Don't care for all address commands except for Program Address (PA) and Sector Address (SA).
Write Sequence may be initiated with A11~A18 in either state.
4. For Chip Protect Verify Operation :If read out data is 01H, it means the chip has been protected. If read out data is 00H, it
means the chip is still not being protected.
COMMAND DEFINITIONS
Device operations are selected by writing specific ad-
dress and data sequences into the command register.
Writing incorrect address and data values or writing them
in the improper sequence will reset the device to the
read mode. Table 1 defines the valid register command
sequences. Note that the Erase Suspend (B0H) and
Erase Resume (30H) commands are valid only while the
Sector Erase operation is in progress. Either of the two
reset command sequences will reset the device (when
applicable).
P/N:PM0554
REV. 1.9, OCT. 19, 2004
6
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