GMS87C2020 datasheet(2/92 Pages) HYNIX

2 / 92 page

GMS81C2020/GMS81C2120

Hyundai Micro Electro nics

preliminary

Nov. 1999 Ver 0.0

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

• 60 I/O Lines

- 56 Programmable I/O pins

30 high-voltage pins (40V,max)

- 3 Input Only pins : 1 high-voltage pin

- 1 Output Only pin

• Eight Interrupt Sources

- 2 By External Sources (INT0, INT1)

- 2 By Timer/Counter Sources (Timer0, Timer1)

- 4 By Functional Sources (SPI,ADC,WDT,BIT)

• 12-Channel 8-Bit On-Chip Analog to Digital Con-

verter

• Oscillatior :

- Crystal

- Ceramic Resonator

- External RC Oscillator

- Internal RCWDT Oscillatior

• Low Power Dissipation Modes

- STOP mode

- Wake-up Timer Mode

- Standby Mode

- Watch Mode

- Subactive Mode

• Operating Voltage : 4.0V ~ 5.5V (at 4.5MHz)

• Operating Frequency : 0.4MHz ~ 4.5MHz

• Subclock : 32.768KHz Crystal Oscillator

• Enhanced EMS Improvement

Power Fail Processor

( Noise Immunity Circuit )

*w here, T otal I/O is all ports except pow er and ground ports

Development Tools

The GMS800 family is supported by a full-featured macro

assembler, an in-circuit emulators CHOICE-Dr.™, and

add-on board type OTP writer Dr.Writer™ .

Device name

Total I/O

Normal I/O

High Voltage I/O

Input Only

Output Only

GMS81C2020

60 pins

26 pins

30 pins

3 pins

1 pins

GMS81C2012

60 pins

26 pins

30 pins

3 pins

1 pins

GMS81C2120

38 pins

13 pins

21 pins

3 pins

1 pins

GMS81C2112

38 pins

13 pins

21 pins

3 pins

1 pins

In Circuit Emulator

CHOICE-Dr.

Assembler

HME Macro Assembler

OTP Writer

Dr.Writer

GMS87C2020 Datasheet(PDF) 2 Page - Hynix Semiconductor

GMS87C2020 Datasheet(HTML) 2 Page - Hynix Semiconductor

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