MB89485 데이터 시트보기 (PDF) - Fujitsu
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MB89485 Datasheet PDF : 55 Pages
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MB89480/480L Series
s PIN DESCRIPTION
Pin number
SH-DIP*1
MDIP*4
MQFP*2
QFP*3
Pin name
I/O
circuit
type
Function
33
26
25
X0
Connection pins for a crystal or other oscillator.
A An external clock can be connected to X0. In this case,
34
27
26
X1
leave X1 open.
29
22
21
X0A
Connection pins for a crystal or other oscillator.
A An external clock can be connected to X0A. In this case,
30
23
22
X1A
leave X1A open.
35
28
27
MODE
B
Input pin for setting the memory access mode.
Connect directly to VSS.
36
29
28
RST
Reset I/O pin. The pin is an N-ch open-drain type with pull-
C
up resistor and a hysteresis input. The pin outputs an “L”
level when an internal reset request is present. Inputting
an “L” level initializes internal circuits.
P00/INT20
50 to 48 43 to 41 42 to 40
to
P02/INT22
General-purpose CMOS I/O port.
D A hysteresis input.
The pin is shared with external interrupt 2 input.
General-purpose CMOS I/O port.
A hysteresis input.
47
40
39
P03/INT23
D The pin is shared with external interrupt 2 input, and
shared with 8/16-bit timer/counter 21, 22 input when
booster is selected.
General-purpose CMOS I/O port.
A hysteresis input.
46
39
38
P04/INT24
D The pin is shared with external interrupt 2 input, and
shared with 8/16-bit timer/counter 21, 22 output when
booster is selected.
General-purpose CMOS I/O port.
45
38
37
P05/INT25/
PWC
D
A hysteresis input.
The pin is shared with external interrupt 2 input, and PWC
input.
General-purpose CMOS I/O port.
44
37
36
P06/INT26/
PPG
D
A hysteresis input.
The pin is shared with external interrupt 2 input, and 6-bit
PPG output.
General-purpose CMOS I/O port.
43
36
35
P07/INT27/
BUZ
D
A hysteresis input.
The pin is shared with external interrupt 2 input and buzzer
output.
P10/SEG23/
25 to 28 18 to 21 17 to 20 INT10 to P13/
SEG26/INT13
F/K
General-purpose N-ch open-drain I/O port.
A hysteresis input.
The pin is shared with external interrupt 1 input and LCD
segment output.
(Continued)
9
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