參數(shù)資料
型號: MX29F4000PC-70
廠商: MACRONIX INTERNATIONAL CO LTD
元件分類: DRAM
英文描述: 4M-BIT [512KX8] CMOS EQUAL SECTOR FLASH MEMORY
中文描述: 512K X 8 FLASH 5V PROM, 70 ns, PDIP32
封裝: 0.600 INCH, PLASTIC, DIP-32
文件頁數(shù): 6/36頁
文件大?。?/td> 247K
代理商: MX29F4000PC-70
6
P/N:PM0629
REV. 1.0, DEC. 20, 1999
MX29F4000
Mode
Pins
CE
L
OE
L
WE
H
A0
L
A1
L
A6
X
A9
V
ID
(2)
Q0 ~ Q7
C2H
Read Silicon ID
Manfacturer Code(1)
Read Silicon ID
Device Code(1)
Read
Standby
Output Disable
Write
Sector Protect with 12V
system(6)
Chip Unprotect with 12V
system(6)
Verify Sector Protect
with 12V system
Sector Protect without 12V
system (6)
Chip Unprotect without 12V
system (6)
Verify Sector Protect/Unprotect
without 12V system (7)
Reset
L
L
H
H
L
X
V
ID
(2)
99H
L
H
L
L
L
L
X
H
H
V
ID
(2)
H
H
L
L
A0
X
X
A0
X
A1
X
X
A1
X
A6
X
X
A6
L
A9
X
X
A9
V
ID
(2)
D
OUT
HIGH Z
HIGH Z
D
IN
(3)
X
L
V
ID
(2)
L
X
X
H
V
ID
(2)
X
L
L
H
X
H
X
V
ID
(2)
Code(5)
L
H
L
X
X
L
H
X
L
H
L
X
X
H
H
X
L
L
H
X
H
X
H
Code(5)
X
X
X
X
X
X
X
HIGH Z
TABLE 2. MX29F4000 BUS OPERATION
NOTES:
1. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table 1.
2. VID is the Silicon-ID-Read high voltage, 11.5V to 12.5V.
3. Refer to Table 1 for valid Data-In during a write operation.
4. X can be VIL or VIH.
5. Code=00H means unprotected.
Code=01H means protected.
A18~A16=Sector address for sector protect.
6. Refer to sector protect/unprotect algorithm and waveform.
Must issue "unlock for sector protect/unprotect" command before "sector protect/unprotect without 12V system"
command.
7. The "verify sector protect/unprotect without 12V sysytem" is only following "Sector protect/unprotect without 12V system"
command.
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