UPD6124AGS NEC [NEC], UPD6124AGS Datasheet - Page 10

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UPD6124AGS

Manufacturer Part Number
UPD6124AGS
Description
4-BIT SINGLE-CHIP MICROCONTROLLER FOR REMOTE CONTROL TRANSMISSION
Manufacturer
NEC [NEC]
Datasheet

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10
11.3
11.4
Caution
This is the 4-bit pin for key input. All of these pins can be pulled down to the V
When the pull-down resistor switch is turned on (set 1) by the mask option, pull-down resistor R is turned on.
K
K
I
I
PIN (P
PULL-DOWN RESISTOR CONFIGURATION
When using the pin as the key switch, turn on the pull-down resistor switch by the mask option.
12
)
Pin
resistor switch
(Mask option)
K pull-down
I
P
Figure 11-2. K
2
K
I3
Pull-down
resistor
V
SS
K
I2
I
P
Pin Organization
12
K
I1
V
DD
P-ch
N-ch
V
K
SS
I0
Mask option
SS
Input signal
level by mask option.
PD6124A, 6600A

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