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参数资料
| 型号： | MF816M-GNCAVXX |
| 元件分类： | PROM |
| 英文描述： | 8M X 16 FLASH 5V PROM CARD, 150 ns, XMA68 |
| 文件页数： | 17/22页 |
| 文件大小： | 148K |
| 代理商： | MF816M-GNCAVXX |
MITSUBISHI MEMORY CARD
FLASH MEMORY CARDS
MITSUBISHI
ELECTRIC
4/22
Feb.1999 Rev2.0
Write protect mode
The card has a write protect switch on the opposite
edge to the connector edge. When it is switched on,
the card will be placed into a write protect mode,
where data can be read from the card but it cannot
be written to it. The WP output pin is set to a high
level when the card is in write protect mode and V CC
is applied. When the card is not in write protect
mode the WP output pin is set to a low level when
V CC is applied. By reading the state of the WP
output the host system can easily check whether the
card is in write protect mode or not.
FUNCTION TABLE (COMMON MEMORY)
Mode
A0
I/O
(D15 to D8)
I/O
(D7 to D0)
Standby
H
X
High-Z
Read A(16-bit)
H
L
H
X
Odd byte data out
Even byte data out
H
L
H
L
High-Z
Even byte data out
H
L
H
High-Z
odd byte data out
Read C(8-bit)
H
L
H
L
H
X
Odd byte data out
High-Z
H
L
H
L
X
Command or odd byte data in
Command or even byte data in
H
L
H
L
High-Z
Command or even byte data in
H
L
H
L
H
High-Z
Command or odd byte data in
H
L
H
L
X
Command or odd byte data in
High-Z
Output disable
H
X
H
X
High-Z
Note 1 : H=V IH, L=V IL, X=V IH or VIL, High-Z= High-impedance
To operate refer to the command definition, algorithms and so on.
FUNCTION TABLE (ATTRIBUTE MEMORY )
GM series
Mode
A0
I/O
(D15 to D8)
I/O
(D7 to D0)
Standby
L
H
X
High-Z
Read A(16-bit)
L
H
X
Data out(not valid)
Even byte data out
Read B
L
H
L
H
L
High-Z
Even byte data out
(8-bit)
L
H
L
H
High-Z
Data out(not valid)
Read C(8-bit)
L
H
L
H
X
Data out(not valid)
High-Z
Write A(16-bit)
L
H
L
X
Odd byte data in (not valid)
Even byte data in
Write B
L
H
L
H
L
High-Z
Even byte data in
(8-bit)
L
H
L
H
L
High-Z
Odd byte data in (not valid)
Write C(8-bit)
L
H
L
X
Odd byte data in (not valid)
High-Z
Output disable
L
X
H
X
High-Z
GN series
Mode
A0
I/O
(D15 to D8)
I/O
(D7 to D0)
Standby
L
H
X
High-Z
Read A(16-bit)
L
H
X
Data out(not valid)
Data out ( FFh)
Read B
L
H
L
H
L
High-Z
Data out ( FFh)
(8-bit)
L
H
L
H
High-Z
Data out(not valid)
Read C(8-bit)
L
H
L
H
X
Data out(not valid)
High-Z
Output disable
L
X
H
X
High-Z
Note 2 : H=V IH, L=V IL, X=V IH or VIL, High-Z= High-impedance
Read B(8-bit)
Write B(8-bit)
Write A(16-bit)
Write C(8-bit)
CE2#
REG#
CE1#
OE#
WE#
CE2#
REG#
CE1#
OE#
WE#
CE2#
REG#
CE1#
OE#
WE#
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