PD17P246_15 Datasheet, PDF (13/34 Pages) Renesas Technology Corp – PD17P246_15 FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROLLER

µPD17P246
2.3 I/O Circuits
The equivalent I/O circuit for each µPD17P246 pin is shown below.
(1) P0A
Figure 2-1. I/O Circuits (1/2)
(4) P1A
VDD
Data
STOP
clear level
Input buffer
(2) P0B, P0C, P0D
Data
Pull-up/
pull-down
resistor
Data
Output
latch
Key matrix
Data use/non-
Output ^{use resistor}
VDD
disable
Selector
Data
Output
latch
P-ch
(5) P1B
Output
disable
Selector
(3) P0E
Data
Data
Key matrix
use/non-
use resistor
Pull-up
resistor
Data ^Output
latch
Output
disable
Selector
N-ch
Data
Pull-up/
pull-down
resistor
Input buffer
Data
STOP
clear level
VDD
P-ch
VDD
P-ch
N-ch
Input buffer
VDD
VDD
P-ch
P-ch
N-ch
Input buffer
N-ch
VDD
P-ch
Input buffer
N-ch
Data Sheet U15215EJ1V0DS
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