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
文件頁數(shù)： 9/70頁
文件大?。?/td> 535K
代理商： UPD75104GF
μ
PD75104, 75106, 75108
9
3.
PIN FUNCTIONS
3.1
PORT PINS
I/O
Pin Name
I/O
Shared with:
Function
At Reset
Circuit
TYPE*
1
P00
Input
INT4
B
P01
I/O
SCK
F
4-bit input port (PORT 0)
Input
P02
I/O
SO
E
P03
Input
SI
B
x
P10
INT0
P11
INT1
Input
4-bit input port (PORT 1)
Input
B
P12
INT2
P13
INT3
P20*
3
PTO0
P21*
3
PTO1
I/O
4-bit I/O port (PORT 2)
Input
E
P22*
3
PCL
x
P23*
3
—
4-bit programmable I/O port (PORT 3)
P30-P33*
3
I/O
—
Input
E
Can be specified for input or output bitwise.
P40-P43*
3
I/O
—
4-bit I/O port (PORT 4)
Input
E
o
P50-P53*
3
I/O
—
4-bit I/O port (PORT 5)
Input
E
4-bit programmable I/O port (PORT 6)
P60-P63*
3
I/O
—
Input
E
Can be specified for input or output bitwise.
o
P70-P73*
3
I/O
4-bit I/O port (PORT 7)
Input
E
P80-P83*
3
I/O
—
4-bit I/O port (PORT 8)
Input
E
o
P90-P93*
3
I/O
—
4-bit I/O port (PORT 9)
Input
E
4-bit N-ch open-drain I/O port (PORT 12)
Built-in pull-up resistors can be specified in bit
P120-P123*
3
I/O
—
units by mask option.
Open-drain withstanding voltage: 12 V
o
4-bit N-ch open-drain I/O port (PORT 13)
Built-in pull-up resistors can be specified in bit
P130-P133*
3
I/O
—
units by mask option.
Open-drain withstanding voltage: 12 V
4-bit N-ch open-drain I/O port (PORT 14)
Built-in pull-up resistors can be specified in bit
P140-P143*
3
I/O
—
–
Input*
2
M
units by mask option.
Open-drain withstanding voltage: 12 V
*1: Circles indicate Schmitt trigger input pins.
2: With drain open: high impedance
With pull-up resistor connected: high level
3: Can directly drive LEDs.
8-Bit
I/O
Input*
2
M
Input*
2
M
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