LC87F6D64A Datasheet, PDF (8/19 Pages) Sanyo Semicon Device – FROM 64K byte, RAM 2048 byte on-chip 8-bit 1-chip Microcontroller

LC87F6D64A
Port Output Types
Output configuration and pull-up/pull-down resistor options are shown in the following table.
Input/output is possible even when port is set to output mode.
Terminal
P00 to P07
(Note 1)
Option Selected in
Units of
each bit
Options
1
2
Output Format
CMOS
Nch-open drain
Pull-up Resistor
Programmable
Programmable
Pull-down Resistor
-
-
P10 to P17
each bit
1
CMOS
Programmable
-
2
Nch-open drain
Programmable
-
P70
-
None Nch-open drain
Programmable
-
P71
-
None CMOS
Programmable
-
S0/T0 to S15/T15
-
None High voltage Pch-open drain
-
Fixed
S16 to S53
Note 1: Programmable pull-up resisters of Port 0 can be attached in nibble units (P00 to P03, P04 to P07).
* Note: Connect as follows to reduce noise on VDD and increase the back-up time.
VSS1 must be connected together and grounded.
LSI
VDD1
Power
supply
Back-up capacitors
VDD2
VDD3
VFD
powers
VSS1
No.A1007-8/19