MB89143 データシートの表示（PDF） - Fujitsu
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MB89143 Datasheet PDF : 31 Pages
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MB89143A/144A
s PIN DESCRIPTION (MB89143A/4A only)
Pin no.
SDIP*
30
31
29
28
Pin name
X0
X1
MODA
RST
54 to 61
46
P07/AN7 to
P00/AN0
P17/ADST
47 to 53
34, 33
P16 to P10
P70/X0A,
P71/X1A
27,
35 to 37
38,
39
40
P23 to P20
P37,
P36
P35/EC
41
P34/SI
42
P33/SO
43
P32/SCK
* : DIP-64P-M01
Circuit type
Function
A
Main clock oscillator pins
Use a crystal oscillator.
B
Operating mode selection pin
Connect directly to VSS in normal operation.
C
Reset I/O pin
This pin is an N-ch open-drain output type with a pull-up
resistor, and a hysteresis input type. “L” is output from
this pin by an internal reset source.
The internal circuit is initialized by the input of “L”.
This pin is with a noise canceller.
F
General-purpose I/O ports
These ports are a hysteresis input type. Also serve as an
analog input.
H
General-purpose I/O port
This port is a hysteresis input type. Also serves as an
A/D converter external activation.
H
General-purpose I/O ports
These ports are a hysteresis input type.
J
Selectable either general-purpose input ports or the
subclock oscillator pins by the mask option. These ports
are a hysteresis input type when used as general-purpose
input ports.
D
General-purpose output ports
H
General-purpose I/O ports
These ports are a hysteresis input type.
General-purpose I/O port
This port is a hysteresis input type. Also serves as the
external clock input for the 8/16-bit timer/counter.
General-purpose I/O port
This port is a hysteresis input type. Also serves as the
serial data input for the 8-bit serial interface.
General-purpose I/O port
This port is a hysteresis input type. Also serves as the
serial data output for the 8-bit serial interface.
General-purpose I/O port
This port is a hysteresis input type. Also serves as the
serial transfer clock for the 8-bit serial interface.
(Continued)
7
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