參數(shù)資料
型號(hào)： UPD75512GFA
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述： 4位單片機(jī)
文件頁(yè)數(shù)： 10/64頁(yè)
文件大?。?/td> 494K
代理商： UPD75512GFA
μ
PD75512(A)
10
3.2 NON-PORT PINS
Input/
Output
Circuit
Type*
Pin
Name
Input/
Output
Shared
Pin
Function
When Reset
TI0
Input
P13
The external event pulse input for the timer/event
counter.
—
B -C
PTO0
Output
P20
Timer/event counter output
Input
E-B
PCL
Output
P22
Clock output
Input
E-B
BUZ
Output
P23
Fixed frequency output (for buzzer output or
system clock trimming)
Input
E-B
SCK0
Input/
output
P01
Serial clock input/output
Input
F -A
SO0/SB0
Input/
output
P02
Serial data output
Serial bus input/output
Input
F -B
SI0/SB1
Input/
output
P03
Serial data input
Serial bus input/output
Input
M -C
INT4
Input
P00
Edge detection vector interrupt input (both rising
edge and falling edge detection)
—
B
INT0
P10
Edge detection vector
interrupt input
(detection edge selectable)
Synchronized
with clock
Input
—
B -C
INT1
P11
Asynchronous
INT2
Input
P12
Edge detection testable input
(rising edge detection)
Asynchronous
—
B -C
KR0-KR3
Input
P60-P63
Parallel falling edge detection testable input
Input
F -C
KR4-KR7
Input
P70-P73
Parallel falling edge detection testable input
Input
F -A
SCK1
Input/
output
P81
Serial clock input/output
Input
F
SO1
Output
P82
Serial data output
Input
E
SI1
Input
P83
Serial data input
Input
B
AN0-AN3
—
Y
Input
A/D converter analog input
—
AN4-AN7
P150-P153
Y-A
AV
REF
Input
—
A/C converter reference voltage input
—
Z
AV
SS
—
—
A/D converter reference ground
—
—
Pins for connecting the crystal ceramic oscillator
to the main system clock generator. When
inputting the external clock, input the external
clock to pin X1, and the reverse phase of the
external clock to pin X2.
X1, X2
Input
—
—
—
XT1
Input
Pins for connecting the crystal oscillator to the
subsystem clock generator. When the external
clock is used, inputs the external clock to pin
XT1. In this case, pin XT2 must be left open.
—
—
—
RESET
Input
—
System reset input
—
B
PPO
Output
P80
Timer/pulse generator pulse output
Input
E
IC
—
—
Internally Connected. Connect directly to V
SS
.
—
—
V
DD
—
—
Positive power supply
—
—
V
SS
—
—
GND
—
—
*: The number enclosed with a circle indicates Schmidt trigger input.
XT2
—
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