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HMS81C2012A Datasheet, PDF (15/107 Pages) List of Unclassifed Manufacturers – CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
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6. PORT STRUCTURES
R41~R43, R50~R52, R57
Data Reg.
VDD
Pull-up
Tr.
VDD
Mask
Option
Dir.
Reg.
Pin
VSS
Rd
R00/INT0, R01/INT1, R02/EC0
Selection
Data Reg.
Dir.
Reg.
Rd
VDD
Mask
Option
Pin
Vdisp
EX) INT0
Alternate Function
R40/T0O
Secondary
Function
Selection
MUX
Data Reg.
Direction
Reg.
VDD
Pull-up
Tr.
VDD
Mask
Option
Pin
VSS
HMS81C2012A/2020A
R53/SCLK
SCLK Output
Data Reg.
Selection
MUX
N-MOS
Open Drain Select
VDD
Pull-up
Tr.
VDD
Mask
Option
Direction
Reg.
Rd
Pin
VSS
SCLK Input
R54/SIN
Selection
N-MOS
Open Drain Select
Data Reg.
Direction
Reg.
Rd
VDD
Pull-up
Tr.
Mask
VDD Option
Pin
VSS
SIN Input
Rd
SEP. 2004 Ver 2.00
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