參數(shù)資料
型號： UPD75068
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述： 4位單片機(jī)
文件頁數(shù)： 8/68頁
文件大小： 640K
代理商： UPD75068
8
μ
PD75064, 75066, 75068, 75064(A), 75066(A), 75068(A)
Pin name
P00
P01
P02
P03
P10
P11
P12
P13
P20
P21
P22
P23
P30
Note 2
P31
Note 2
P32
Note 2
P33
Note 2
P40 - P43
Note 2
P50 - P53
Note 2
P60
P61
P62
P63
P110
P111
P112
P113
I/O circuit
type
Note 1
-A
F
-B
F
-C
-C
B
E-B
E-B
M
M
-D
Y-A
Input/
output
Input
I/O
I/O
I/O
Input
I/O
I/O
I/O
I/O
I/O
Input
When reset
Input
Input
Input
Input
High level
(when pull-
up resistors
are provided)
or high
impedance
High level
(when pull-
up resistors
are provided)
or high
impedance
Input
Input
8-bit
I/O
×
×
×
×
×
×
Function
4-bit input port (PORT0).
For P01 to P03, pull-up resistors can be
provided by software in units of 3 bits.
With noise elimination function
4-bit input port (PORT1).
Pull-up resistors can be provided by soft-
ware in units of 4 bits.
4-bit I/O port (PORT2).
Pull-up resistors can be provided by soft-
ware in units of 4 bits.
Programmable 4-bit I/O port (PORT3).
I/O can be specified bit by bit. Pull-up
resistors can be provided by software in
units of 4 bits.
N-ch open-drain 4-bit I/O port (PORT4).
A pull-up resistor can be provided for
each bit (mask option). Breakdown volt-
age is 10 V in open-drain mode.
N-ch open-drain 4-bit I/O port (PORT5).
A pull-up resistor can be provided for
each bit (mask option). Breakdown volt-
age is 10 V in open-drain mode.
Programmable 4-bit I/O port (PORT6).
I/O can be specified bit by bit. Pull-up
resistors can be provided by software in
units of 4 bits.
4-bit input port (PORT11).
Notes 1.
The circle (
2.
Can directly drive LEDs.
) indicates the Schmitt trigger input.
B
3. PIN FUNCTIONS
3.1 Port Pins
Shared
with
INT4
SCK
SO/SB0
SI/SB1
INT0
INT1
INT2
TI0
PTO0
–
PCL
BUZ
–
–
–
–
–
–
KR0/AN4
KR1/AN5
KR2/AN6
KR3/AN7
AN0
AN1
AN2
AN3
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