MB89817A 查看數據表（PDF） - Fujitsu
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MB89817A Datasheet PDF : 36 Pages
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MB89810A Series
s PIN DESCRIPTION
Pin no.
23
24
18
19
21
22
20
Pin name
X0
X1
X0A
X1A
MOD0
MOD1
RST
49 to 42 P00 to P07
41 to 34 P10 to P17
33 to 30 P20 to P23
29 to 26 P24 to P27
1
P30 /PWE
2
P31/SCK
3
P32/SO
4
P33/SI
5
P34/PWO
6
P35/PWI
7
P36/PTO1
4
Circuit type
Function
A
Main clock oscillator pins
I
Subclock crystal oscillator pins
B
Operating mode selection pins
Connect directly these pins directly to VSS.
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”.
D
General-purpose I/O ports
A pull-up resistor option is provided.
These ports have the port output inverting function.
D
General-purpose I/O ports
A pull-up resistor option is provided.
These ports have the port output inverting function.
F
General-purpose output ports
These ports have the port output inverting function.
F
General-purpose output ports
E
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as a pulse width detection enable input (PWE).
PWE input is hysteresis input.
E
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as the clock I/O for the 8-bit serial I/O (SCK).
SCK input is hysteresis input.
D
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as the data output for the 8-bit serial I/O (SO).
E
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as the data input for the 8-bit serial I/O (SI).
SI input is hysteresis input.
D
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as a pulse width detection output (PWO).
E
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as a pulse width detection input (PWI).
PWI input is hysteresis input.
D
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as the toggle output for the 8-bit PWM timer 1 (PTO1).
(Continued)
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