MX23J25640
Operation Commands
The following six operation settings are possible by inputting commands from I/O pins.
Command
Hex
I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0 Command receivable
during Busy
Read mode(1)
Read mode(2)
Read mode(3)Note1
Reset Note2
00
01
50
FF
L
L
L
H
L
L
L
L
H
L
L
L
L
H
L
L
L
H
L
L
L
H
L
L
L
H
L
H
H
H
H
H
Notes:
1.The data output in read mode (3) is all FFH.
2. The only command that can be executed when the device is Busy is the reset command. Do not set any of the
other commands while the device is Busy.
I/O Pin Correspondence Table during Address Input Cycle (Address Setting)
(1) When 00H or 01H command is set [Read mode (1), Read mode (2)]
Command
I/O7
A7
I/O6
A6
I/O5
A5
I/O4
A4
I/O3
A3
I/O2
A2
I/O1
A1
I/O0
A0
1st address cycle
2nd address cycle
3rd address cycle
A16
A24
A15
A23
A14
A22
A13
A21
A12
A20
A11
A19
A10
A18
A9
A17
(2) When 50H command is set [Read mode (3)]
Command
I/O7
X
I/O6
X
I/O5
X
I/O4
X
I/O3
A3
I/O2
A2
I/O1
A1
I/O0
A0
1st address cycle
2nd address cycle
3rd address cycle
A16
A24
A15
A23
A14
A22
A13
A21
A12
A20
A11
A19
A10
A18
A9
A17
Remarks
1. A0 to A24 are internal addresses.
2. Internal address A8 is set internally with command 00H or 01H.
3. When 50H command is set [read mode (3)], the I/O4, I/O5, I/O6, and I/O7 inputs of the 1st address cycle are VIH
or VIL.
P/N:PM1137
REV. 1.2, OCT. 28, 2005
5
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