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GMS81C1404 Datasheet, PDF (3/93 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS | |||
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GMS81C1404/GMS81C1408
GMS81C1404 / GMS81C1408
CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
1. OVERVIEW
1.1 Description
The GMS81C1404 and GMS81C1408 are an advanced CMOS 8-bit microcontroller with 4K/8K bytes of ROM. The Hynix
semiconductorâs GMS81C1404 and GMS81C1408 are a powerful microcontroller which provides a highly flexible and cost
effective solution to many small applications such as controller for battery charger. The GMS81C1404 and GMS81C1408
provide the following standard features: 4K/8K bytes of ROM, 192 bytes of RAM, 8-bit timer/counter, 8-bit A/D converter,
10-bit high speed PWM output, programmable buzzer driving port, 8-bit serial communication port, on-chip oscillator and
clock circuitry. In addition, the GMS81C1404 and GMS81C1408 supports power saving modes to reduce power consump-
tion.
Device name
GMS81C1404
GMS81C1408
GMS87C1404
GMS87C1408
ROM Size
4K bytes
8K bytes
-
-
EPROM Size
-
-
4K bytes
8K bytes
RAM Size
192bytes
192bytes
192bytes
192bytes
Operatind
Voltage
2.2 ~ 5.5V
2.2 ~ 5.5V
2.5 ~ 5.5V
2.5 ~ 5.5V
Package
28 SKDIP or SOP
28 SKDIP or SOP
28 SKDIP or SOP
28 SKDIP or SOP
1.2 Features
⢠4K/8K Bytes On-chip Program Memory
⢠192 Bytes of On-chip Data RAM
(Included stack memory)
⢠Instruction Cycle Time:
- 250nS at 8MHz
⢠23 Programmable I/O pins
(LED direct driving can be source and sink)
⢠2.2V to 5.5V Wide Operating Range
⢠One 8-bit A/D Converter
⢠One 8-bit Basic Interval Timer
⢠Four 8-bit Timer / Counters
⢠Two 10-bit High Speed PWM Outputs
⢠Watchdog timer (can be operate with internal
RC-oscillation)
⢠One 8-bit Serial Peripheral Interface
⢠Twelve Interrupt sources
- External input: 4
- A/D Conversion: 1
- Serial Peripheral Interface: 1
- Timer: 6
⢠One Programmable Buzzer Driving port
- 500Hz ~ 130kHz
⢠Oscillator Type
- Crystal
- Ceramic Resonator
⢠Noise Immunity Circuit
- Power Fail Processor
⢠Power Down Mode
- STOP mode
- Wake-up Timer mode
June. 2001 Ver 1.2
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