MB89923 データシートの表示（PDF） - Fujitsu
部品番号
コンポーネント説明
メーカー
MB89923 Datasheet PDF : 46 Pages
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MB89920 Series
s PIN DESCRIPTION
Pin no.
17
18
16
Pin name
X1
X0
MODA
20
HST
21
RST
11,
P90/RTO0,
12
P91/RTO1
13
P92/BUZ/CLK
14
P93/PWM0
19
P94/PWM1
22
P95/SCK
23
P96/SO
24
P97/SI
25
P32/UCK
26
P31/UO
Circuit
type
A
Clock oscillator pins
Function
B
Operation mode selection input pin
Connect this pin to VSS (GND).
B
Hardware standby input pin
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. Also serve as an output
compare data output.
D
General-purpose I/O port
Also serves as a buzzer/clock output.
D
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as an 8-bit PWM output.
D
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as an 8-bit PWM output.
E
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as the clock I/O (SCK) for the serial I/O. The SCK
input is a hysteresis input.
The output type can be switched between N-ch open-drain and
CMOS.
D
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as the data output (SO) for the serial I/O. The output
type can be switched between N-ch open-drain and CMOS.
E
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as the data input (SI) for the serial I/O.
E
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as a UART clock I/O (UCK). The UCK input is
hysteresis input.
The output type can be switched between N-ch open-drain and
CMOS.
D
General-purpose I/O port
A pull-up resistor option is provided.
Also serves as a UART data output (UO).
The output type can be switched between N-ch open-drain and
CMOS.
(Continued)
7
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