參數(shù)資料
型號： uPD750068CUA
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 4位單晶片微控制器
文件頁數(shù)： 8/82頁
文件大?。?/td> 460K
代理商： UPD750068CUA
8
μ
PD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
Data Sheet U10165EJ2V0DS00
3. PIN FUNCTION
3.1 Port Pins (1/2)
Pin Name
Input/Output
Alternate
Function
Function
8-bit
I/O
After Reset
I/O Circuit
Type
Note 1
P00
Input
INT4
No
Input
<B>
P01
Input/Output
SCK
<F>-A
P02
Input/Output
SO/SB0
<F>-B
P03
Input/Output
SI/SB1
<M>-C
P10
Input
INT0
No
Input
<B>-C
P11
INT1
P12
TI1/INT2
P13
TI0
P20
Input/Output
PTO0
No
Input
E-B
P21
PTO1
P22
PCL
P23
BUZ
P30 to P33
Input/Output
–
No
Input
E-B
P40 to P43
Note 2
Input/Output
–
Yes
M-D
P50 to P53
Note 2
Input/Output
–
M-D
Notes 1.
Circuit types enclosed in brackets indicate the Schmitt trigger input.
If on-chip pull-up resistors are not specified by mask option (when used as N-ch open-drain input port),
low-level input leakage current increases when input or bit manipulation instruction is executed.
2.
High level
(when pull-up
resistors are
provided) or
high-
impedance
4-bit input port (PORT0).
For P01 to P03, connection of on-chip pull-
up resistors can be specified by software in
3-bit units.
4-bit input port (PORT1).
Connection of on-chip pull-up resistors can
be specified by software in 4-bit units.
P10/INT0 can select noise elimination circuit.
4-bit input/output port (PORT2).
Connection of on-chip pull-up resistors can
be specified by software in 4-bit units.
Programmable 4-bit input/output port (PORT3).
This port can be specified for input/output in
1-bit units.
Connection of on-chip pull-up resistor can be
specified by software in 4-bit units.
N-ch open-drain 4-bit input/output port (PORT4).
A pull-up resistor can be contained in 1-bit
units (mask option).
Withstand voltage is 13 V in open-drain
mode.
N-ch open-drain 4-bit input/output port (PORT5).
A pull-up resistor can be contained in 1-bit
units (mask option).
Withstand voltage is 13 V in open-drain
mode.
High level
(when pull-up
resistors are
provided) or
high-
impedance
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