µPD17215, 17216, 17217, 17218
1.2 Input/Output Circuits
The equivalent input/output circuit for each µPD17215 pin is shown below.
(1) P0A, P0B
(4) RESET
V DD
V DD
Input buffer
(2) P0C, P0D
data
Output
latch
(3) P0E
data
Pull-up
register
data
Output
latch
output
disable
Selector
N-ch
V DD
P-ch
V DD
P-ch
N-ch
Input buffer
Mask option
Input buffer
Schmitt trigger input with hysteresis charac-
teristics
(5) INT
Input buffer
Schmitt trigger input with hysteresis
characteristics
(6) REM
data
output
disable
V DD
P-ch
N-ch
(7) WDOUT
data
N-ch
8