參數(shù)資料
型號(hào): UPD754202
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(yè)數(shù): 8/66頁(yè)
文件大小: 302K
代理商: UPD754202
8
μ
PD754202, 754202(A)
3. PIN FUNCTION
3.1 Port Pins
Pin Name
Input/Output
Alternate
Function
Function
8-bit
I/O
After Reset
I/O Circuit
Type
Note
P30
Input/Output
PTO0
Input
E-B
P31
PTO1
P32
PTO2
P33
P60
Input/Output
Input
F -A
P61
INT0
P62
P63
P70
Input
KR4
Input
B -A
P71
KR5
P72
KR6
P73
KR7
P80
Input/Output
Input
F -A
Note
Circled characters indicate Schmitt trigger input.
Programmable 4-bit input/output port
(PORT3).
This port can be specified input/output bit-
wise.
On-chip pull-up resistor can be specified by
software in 4-bit units.
Programmable 4-bit input/output port (PORT6).
This port can be specified input/output bit-wise.
On-chip pull-up resistor can be specified by
software in 4-bit units.
Noise eliminator can be selected on P61/
INT0.
4-bit input port (PORT7).
On-chip pull-up resistor can be specified
bit-wise (mask option).
1-bit input/output port (PORT8).
On-chip pull-up resistor can be specified by
software.
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