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PDF HMS81C2020A Data sheet ( Hoja de datos )
| Número de pieza | HMS81C2020A | |
| Descripción | (HMS81C2012A / HMS81C2020A) CMOS Single-Chip 8-Bit Microcontroller | |
| Fabricantes | Magna Chip | |
| Logotipo |  |
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MAGNACHIP SEMICONDUCTOR INC.
8-BIT SINGLE-CHIP MICROCONTROLLERS
HMS81C2012A
HMS81C2020A
User’s Manual (Ver. 2.00)
1 page  
HMS81C2012A/2020A
HMS81C2012A/HMS81C2020A
1. OVERVIEW
CMOS Single-Chip 8-Bit Microcontroller
with A/D Converter & VFD Driver
1.1 Description
The HMS81C2012A and HMS81C2020Aare advanced CMOS 8-bit microcontroller with 12K/20K bytes of ROM. These
are a powerful microcontroller which provides a highly flexible and cost effective solution to many VFD applications. These
provide the following standard features: 12K/20K bytes of ROM, 448 bytes of RAM, 8-bit timer/counter, 8-bit A/D convert-
er, 10-bit High Speed PWM Output, Programmable Buzzer Driving Port, 8-bit Basic Interval Timer, 7-bit Watch dog Timer,
Serial Peripheral Interface, on-chip oscillator and clock circuitry. They also come with high voltage I/O pins that can directly
drive a VFD (Vacuum Fluorescent Display). In addition, the HMS81C2012A and HMS81C2020A support power saving
modes to reduce power consumption.
Device name
HMS81C2012A
HMS81C2020A
ROM Size
12K bytes
20K bytes
RAM Size
448 bytes
OTP
-
GMS87C2020
Package
64SDIP, 64MQFP,
64LQFP
1.2 Features
• 20K/12K bytes ROM(EPROM)
• 448 Bytes of On-Chip Data RAM
(Including STACK Area)
• Minimum Instruction Execution time:
- 1uS at 4MHz (2cycle NOP Instruction)
• One 8-bit Basic Interval Timer
• One 7-bit Watch Dog Timer
• Two 8-bit Timer/Counters
• 10-bit High Speed PWM Output
• One 8-bit Serial Peripheral Interface
• Two External Interrupt Ports
• One Programmable 6-bit Buzzer Driving Port
• 57 I/O Lines
- 56 Programmable I/O pins
(Included 30 high-voltage pins Max. 40V)
- 1 Input only pin (high-voltage pin)
• Eight Interrupt Sources
- Two External Sources (INT0, INT1)
- Two Timer/Counter Sources (Timer0, Timer1)
- Four Functional Sources (SPI,ADC,WDT,BIT)
• 12-Channel 8-bit On-Chip Analog to Digital
Converter
• Oscillator:
- Crystal
- Ceramic Resonator
- External R Oscillator
• Low Power Dissipation Modes
- STOP mode
- Wake-up Timer Mode
- Standby Mode
- Watch Mode
- Sub-active Mode
• Operating Voltage:
2.7V ~ 5.5V (@ 1M ~ 6MHz)
4.5V ~ 5.5V (@ 1M ~ 8MHz)
• Sub-clock: 32.768KHz Crystal Oscillator
• Enhanced EMS Improvement
Power Fail Processor
(Noise Immunity Circuit)
SEP. 2004 Ver 2.00
1
5 Page 
64LQFP
12.00 BSC
10.00 BSC
HMS81C2012A/2020A
UNIT: MM
SEE DETAIL "A"
1.60 max.
0.38
0.22
0.50 BSC
0-7°
0.75
0.45
1.00
REF
DETAIL "A"
SEP. 2004 Ver 2.00
7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet HMS81C2020A.PDF ] | |
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