參數(shù)資料
型號(hào): μPD75P70076
廠商: NEC Corp.
英文描述: 4 Bit Single Chip Microcontrollers(4位單片微控制器)
中文描述: 4位單片微控制器(4位單片微控制器)
文件頁(yè)數(shù): 7/62頁(yè)
文件大?。?/td> 290K
代理商: ΜPD75P70076
m
PD75P0076
7
3.2 Non-port Pins (1/2)
Pin name
I/O
Alternate function
Function
After
reset
Circuit
type
Note
TI0
I
P13
Inputs external event pulses to the timer/event
counter.
Input
<B>-C
TI1
P12/INT2
PTO0
O
P20
Timer/event counter output
Input
E-B
PTO1
P21
PCL
P22
Clock output
BUZ
P23
Optional frequency output (for buzzer output or
system clock trimming)
SCK
I/O
P01
Serial clock I/O
Input
<F>-A
SO/SB0
P02
Serial data output
Serial data bus I/O
<F>-B
SI/SB1
P03
Serial data input
Serial data bus I/O
<M>-C
INT4
I
P00
Edge detection vectored interrupt input (both rising
edge and falling edge detection)
<B>
INT0
I
P10
Edge detection vectored
interrupt input (detection
edge can be selected).
INT0/P10 can select a noise
eliminator.
Rising edge detection
testable input
Noise eliminator/
asynchronous selection
Asynchronous
Input
<B>-C
INT1
P11
INT2
P12/TI1
Asynchronous
KR0 to KR3
I
P60/AN4 to
P63/AN7
Falling edge detection testable input
Input
<Y>-D
AN0 to AN3
I
P110 to P113
Analog signal input
Input
Y-A
AN4 to AN7
P60/KR0 to
P63/KR3
<Y>-D
AV
REF
A/D converter reference voltage
Z-N
AV
SS
A/D converter reference GND potential
Z-N
X1
I
Crystal/ceramic connection pin for the main system
X2
clock oscillator. When inputting the external clock,
input the external clock to pin X1, and the inverted
phase of the external clock to pin X2.
XT1
XT2
I
Crystal connection pin for the subsystem clock
oscillator. When the external clock is used, input the
external clock to pin XT1, and the inverted phase of
the external clock to pin XT2. Pin XT1 can be used
as a 1-bit input (test) pin.
RESET
I
System reset input (low-level active)
<B>
Note
Circuit types enclosed in brackets indicate Schmitt triggered inputs.
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