LC87F5LP6A Datasheet, PDF (12/28 Pages) Sanyo Semicon Device – CMOS IC FROM 256K byte, RAM 8192 byte on-chip 8-bit 1-chip Microcontroller

LC87F5LP6A
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
P00 to P07
Options Selected
in Units of
1 bit
Option Type
1
CMOS
Output Type
Pull-up Resistor
Programmable (Note 1)
2
N-channel open drain
No
P10 to P17
P20 to P27
P30 to P36
PA0 to PA5
PB0 to PB7
PC0 to PC7
PE0 to PE7
PF0 to PF7
P70
1 bit
1
CMOS
2
N-channel open drain
1 bit
1
CMOS
2
N-channel open drain
-
No
CMOS
-
No
N-channel open drain
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
P71 to P73
-
No
CMOS
Programmable
P80 to P87
-
No
N-channel open drain
No
SI2P0, SI2P2
-
SI2P3
PWM0, PWM1
SI2P1
-
XT1
-
No
CMOS
No
No
CMOS (when selected as ordinary port)
No
N-channel open drain (When SIO2 data is
selected)
No
Input only
No
XT2
-
No
Output for 32.768kHz quartz oscillator
No
N-channel open drain (when in general-
purpose No output mode)
Note 1: Programmable pull-up resistors for port 0 are controlled in 4-bit units (P00 to 03, P04 to 07).
*1: 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 backup is active in the HOLD mode, the high level of the port outputs is supplied by the
backup capacitors.
Power
Supply
Back-up
capacitor
LSI
VDD1
VDD2
VDD3
VDD4
VSS1 VSS2 VSS3 VSS4
No.A0664-12/28