參數(shù)資料
型號： UPD6125AG
廠商： NEC Corp.
英文描述： 4-BIT SINGLE CHIP MICROCONTROLLER FOR REMOTE CONTROL TRANSMISSION
中文描述： 4位單片機(jī)的遙控傳輸
文件頁數(shù)： 9/40頁
文件大小： 286K
代理商： UPD6125AG
μ
PD6125A, 6126A
9
11. PIN FUNCTIONS
11.1 K
I/O
Pin (P
0
)
This is the 8-bit I/O pin for key-scan output. When the control register (P
1
) is set for the input port, the port can
be used as an 8-bit input pin. When the port is set for the input mode, all of these pins are pulled down to the V
SS
level inside the LSI.
When “all clear” is input or on reset, input/output mode goes into effect, and the value of output latch becomes
undefined.
Figure 11-1. K
I/O
Pin Organization
K
I/O7
K
I/O6
K
I/O5
K
I/O4
K
I/O3
K
I/O2
K
I/O1
K
I/O0
P
0
P
10
P
00
(P )
1
Countrol
register
11.2 K
I/O
Pull-Down Resistor Organization
V
DD
V
SS
CMOS
N-ch
Pin
Pull-down resistor
Input signal
Output signal
Input/output selection
N-ch
P-ch
R
When K
I/O
is set to the input mode, pull-down resistor R is turned on.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD6126A 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE CHIP MICROCONTROLLER FOR REMOTE CONTROL TRANSMISSION
UPD6126AG 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE CHIP MICROCONTROLLER FOR REMOTE CONTROL TRANSMISSION
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