參數(shù)資料
型號: μPD75P3018A
廠商: NEC Corp.
英文描述: 4 Bit Single Chip Microcontrollers(4位單片微控制器)
中文描述: 4位單片微控制器(4位單片微控制器)
文件頁數(shù): 6/60頁
文件大小: 337K
代理商: ΜPD75P3018A
μPD75P3018A
6
3.PIN FUNCTIONS
3.1
Port Pins (1/2)
Pin name
I/O
Shared by
Function
8-bit
I/O
Status
after reset
I/O circuit
type
Note 1
P00
Input
INT4
This is a 4-bit input port (PORT0).
P01 to P03 are 3-bit pins for which an internal
pull-up resistor connection can be specified
by software.
Input
<B>
P01
I/O
SCK
<F>-A
P02
I/O
SO/SB0
<F>-B
P03
I/O
SI/SB1
<M>-C
P10
Input
INT0
This is a 4-bit input port (PORT1).
These are 4-bit pins for which an internal pull-up
resistor connection can be specified by software.
P10/INT0 can select noise elimination circuit.
Input
<B>-C
P11
INT1
P12
TI1/TI2/INT2
P13
TI0
P20
I/O
PTO0
This is a 4-bit I/O port (PORT2).
These are 4-bit pins for which an internal pull-up
resistor connection can be specified by software.
Input
E-B
P21
PTO1
P22
PCL/PTO2
P23
BUZ
P30
I/O
LCDCL/MD0
This is a programmable 4-bit I/O port (PORT3).
Input and output in single-bit units can be specified.
When set for 4-bit units, an internal pull-up resistor
connection can be specified by software.
Input
E-B
P31
SYNC/MD1
P32
MD2
P33
MD3
P40
Note 2
I/O
D0
This is an N-ch open-drain 4-bit I/O port (PORT4).
When set to open-drain, voltage is 13 V.
Also functions as data I/O pin (lower 4 bits)
for program memory (PROM) write/verify.
High
M-E
impedance
P41
Note 2
D1
P42
Note 2
D2
P43
Note 2
D3
P50
Note 2
I/O
D4
This is an N-ch open-drain 4-bit I/O port (PORT5).
When set to open-drain, voltage is 13 V.
Also functions as data I/O pin (upper 4 bits)
for program memory (PROM) write/verify.
High
M-E
impedance
P51
Note 2
D5
P52
Note 2
D6
P53
Note 2
D7
Notes 1. Circuit types enclosed in brackets indicate Schmitt trigger input.
2. Low-level input leakage current increases when input instructions or bit manipulation instructions are executed.
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