LC88FC2F0B Datasheet, PDF (13/47 Pages) ON Semiconductor – 16-bit Microcontroller 384K-byte Flash ROM / 24Kbyte RAM / 100-pin

LC88FC2F0B
Port Output Types
The table below lists the types of port outputs and the presence/absence of a pull-up resistor.
Data can be read into any input port even if it is in the output mode.
Port Name
P00 to P07
Option
Selected in
Units of
1 bit
Output Type
CMOS
Pull-up Resistor
Programmable
P10 to P17
P20 to P27
P30 to P37
P40 to P47
P50 to P57
P60 to P67
P70 to P77
PA0 to PA7
PB0 to PB6
P60 to P67
P70 to p77
PD0 to PD5
PC2
PC0
PC1
PC3
PC4
Able to program special
functions’output type from
CMOS output or Nch-opendrain
CMOS

N-channel open drain
None
(32.768 kHz crystal oscillator
input)

Nch-open drain
None
(32.768k kHz crystal oscillator
output)

CMOS
None
(ceramic oscillator input)

CMOS
None
(ceramic oscillator output)
* Make the following connection to minimize the noise input to the VDD1 pin and prolong the backup time.
Be sure to electrically short the VSS1, VSS2, VSS3 and VSS4 pins.
Example 1: When data is being backed up in the HOLD mode, the H level signals to the output ports are fed
by the backup capacitors.
LSI
Power
supply
For buckup
VDD1
VDD2
VDD3
VDD4
VSS1 ^{VSS2 VSS3 VSS4}
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