參數(shù)資料
型號(hào)： UPD753208
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)： 7/80頁
文件大?。?/td> 577K
代理商： UPD753208
7
μ
PD753204, 753206, 753208
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
P13
TI0
P20
Input/Output
PTO0
No
Input
E-B
P21
PTO1
P22
PCL/PTO2
P23
BUZ
P30
Input/Output
LCDCL
No
Input
E-B
P31
SYNC
P32
–
P33
–
P50 to
P53
Note 2
Input/Output
–
No
M-D
Notes 1.
Characters in parentheses indicate the Schmitt-trigger input.
2.
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.
4-bit input port (PORT0).
For P01 to P03, on-chip pull-up resistors can
be specified by software in 3-bit units.
High level
(when pull-
up resistors
are
provided) or
high-
impedance
Input port in 1 bit unit (PORT1).
On-chip pull-up resistors can be specified by
software in 2-bit units.
Noise elimination circuit can be specified with
P10/INT0.
4-bit input/output port (PORT2).
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 input/output bit-
wise. On-chip pull-up resistor can be speci-
fied by software in 4-bit units.
N-ch open-drain 4-bit input/output port (PORT5).
A pull-up resistor can be contained bit-wise
(mask option).
Withstand voltage is 13 V in open-drain mode.
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