HMS81C2012A Datasheet, PDF (107/107 Pages) List of Unclassifed Manufacturers – CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver

HMS81C20XXA MASK OPTION LIST
Customer should write inside thick line box.
1. RA/Vdisp
RA without pull-down resistor
Vdisp
(Please check mark√ into )
2. CONFIG OPTION Check
X
XX X
CONFIG Default Value : X000X0X0
7
6
5
4
3
2
1
0
CONFIG
R7X PFS1 PFS0
RCO
ADDRESS: 703F_H
INITIAL VALUE: -000 -0-0_B
R74, R75 Selection
0 : Sub Clock
1 : R74, R75
PFD Level Selection
00: PFD = 2.7V
01: PFD = 2.7V
10: PFD = 3.0V
11: PFD = 2.4V
External RC OSC Selection
0: Crystal or Resonator Oscillator
1: External RC Oscillator
3. H/V Port OPTION Check (Pull-down Option Check )
Option
Port
Option
Port
Port
ON OFF
ON OFF
R00/INT0
R10
R20
R01/INT1
R11
R21
R02/EC0
R12
R22
R03/BUZO
R13
R23
R04
R14
R24
R05
R15
R25
R06
R16
R26
R07
R17
R27
Option
ON OFF
Option
Port
ON OFF
R30
R31
R32
R33
R34
R35
ON : with pull-down resistor
OFF : without pull-down resistor
4. Normal Port OPTION Check ( Pull-up Option Check )
Port
R40/T0O
R41
R42
R43
Option
ON OFF
Option
Port
ON OFF
R50
R51
R52
R53/SCLK
R54/SIN
R55/SOUT
R56/PWM
R57
Port
R60/AN0
R61/AN1
R62/AN2
R63/AN3
R64/AN4
R65/AN5
R66/AN6
R67/AN7
Option
ON OFF
Option
Port
ON OFF
R70/AN8
R71/AN9
R72/AN10
R73/AN11
ON : with pull-up resistor
OFF : without pull-up resistor