µPD16661A
3.2 8-bit data bus (BMODE = H)
The address setting direction →
is as shown on the right.
D0 to D7
00000H
00001H
00002H
:
:
/CS
/OE
/WE
MODE
H
X
X
Not selected
L
L
H
Read
L
H
L
Write
L
H
H
Output disable
I/O
D0 to D7
D8 to D15
Hi-z
Note
Dout
Note
Din
Note
Hi-z
Note
Note When BMODE = H, D8 to D15 and /UBE are pulled down internally, so either leave them open, or
connect them to the GND.
Remark X : Don’t care, Hi-z : High impedance
8