參數(shù)資料
型號: UPD753108GK
廠商: NEC Corp.
元件分類: 4位微控制器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4位單片機的小型通用紅外遙控器
文件頁數(shù): 10/90頁
文件大?。?/td> 547K
代理商: UPD753108GK
10
μ
PD753104, 753106, 753108
3.1 Port Pins (2/2)
Pin Name
Input/Output
Alternate
Function
Function
8-bit
I/O
After Reset
I/O Circuit
TYPE
Note 1
P60
Input/Output
KR0
No
Input
(F)-A
P61
KR1
P62
KR2
P63
KR3
P80
Input/Output
S23
Yes
Input
H
P81
S22
P82
S21
P83
S20
P90
Input/Output
S19
Input
H
P91
S18
P92
S17
P93
S16
Notes 1.
Characters in parentheses indicate the Schmitt trigger input.
When these pins are used as segment signal output pins, do not connect the on-chip pull-up resistor
by software.
2.
Programmable 4-bit input/output port
(PORT6).
This port can be specified for input/output
bit-wise.
Connection of on-chip pull-up resistors can
be specified by software in 4-bit units.
4-bit input/output port (PORT8).
Connection of on-chip pull-up resistors can
be specified by software in 4-bit units
Note 2
.
4-bit input/output port (PORT9).
Connection of on-chip pull-up resistors can
be specified by software in 4-bit units
Note 2
.
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