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HMS81C2020ALQ Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers

Part # HMS81C2020ALQ
Description  CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
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Manufacturer  ETC1 [List of Unclassifed Manufacturers]
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HMS81C2012A/2020A
SEP. 2004 Ver 2.00
3
2. BLOCK DIAGRAM
ALU
Interrupt Controller
Data Memory
8-bit
ADC
8-bit
Counter
Timer/
Program
Memory
Data Table
PC
8-bit Basic
Timer
Interval
Watchdog
Timer
PC
R4
R5
R2
PSW
System controller
Timing generator
System
Clock Controller
Clock
Generator
R40 / T0O
R41
R50
R20~R27
Power
Supply
8-bit serial
R51
R52
R53 / SCLK
R54 / SIN
R55 / SOUT
R56 / PWM1O/T1O
R57
R1
R10~R17
R3
R30~R35
Interface
Buzzer
Driver
R6
R60 / AN0
R61 / AN1
R62 / AN2
R63 / AN3
R64 / AN4
R65 / AN5
R66 / AN6
R67 / AN7
(448 bytes)
10-bit
ADC Power
Supply
Stack Pointer
R0
R04
R03/BUZO
R02/EC0
R00/INT0
Vdisp/RA
R7
R70 / AN8
R71 / AN9
R72 / AN10
R42
R43
R73 / AN11
Sub System
Clock Controller
R05
R06
R07
R01/INT1
RA
PWM
A
X
Y
High Voltage Port


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