LC665304A, 665306A, 665308A, 665312A, 665316A
5. Inverter array circuit option
One of the following options can be selected for each of the following port sets: P40/P41, P42/P43, PC2/PC3,
PD0/PD1, and PD2/PD3. (PDs do not use option 1 because they are dedicated to inputs)
Option
Circuit
Conditions and notes
1. Normal port I/O circuit
Input
2. Inverter I/O circuit
Output
Output data
Input data
When the open-drain output type is selected
DSB
DSB
Output data
Input data
When the built-in pull-up resistor output type is
selected
The CMOS outputs (PC) and the pull-up MOS
outputs (P4) are distinguished by the drive
capacity of the p-channel transistor.
Output data
high
Input data
DSB
If this option is selected, The I/O circuit is
disabled by the DSB signal.
Also note that the open-drain port output type
option and the high level at reset option must be
Output data selected.
high
Input data
DSB
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