參數(shù)資料
型號: UPD75104GF
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁數(shù): 10/70頁
文件大?。?/td> 535K
代理商: UPD75104GF
μ
PD75104, 75106, 75108
10
3.2
PINS OTHER THAN PORTS
I/O
Pin Name
I/O
Shared with:
Function
At Reset
Circuit
TYPE*
1
PTH00-PTH03
Input
4-bit variable threshold voltage analog input port
N
TI0
External event pulse inputs for timer/event counter.
Input
Also serves as edge-detected vector interrupt input.
B
TI1
1-bit input also possible.
PTO0
P20
I/O
Outputs for timer/event counter
Input
E
PTO1
P21
SCK
I/O
P01
Serial clock I/O
Input
F
SO
I/O
P02
Serial data output
Input
E
SI
Input
P03
Serial data input
Input
B
Edge-detected vectored interrupt input (both rising and
INT4
Input
P00
Input
B
falling edges detected)
INT0
P10
Edge-detected vectored interrupt inputs (valid
Input
Input
B
INT1
P11
edge selectable)
INT2
P12
Input
Edge-detected testable inputs (rising edge detected)
Input
B
INT3
P13
PCL
I/O
P22
Clock output
Input
E
Crystal/ceramic system clock oscillator connections.
X1, X2
Input external clock to X1, and signal in reverse phase
with X1 to X2.
RESET
Input
System reset input (low level active type)
B
NC*
2
No Connection
V
DD
Positive power supply
V
SS
GND
*1: Circles indicate Schmitt trigger input pins.
2: Connect the NC pin directly to the V
DD
pin when
μ
PD75P108B and a printed circuit board are shared.
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