GMS36 datasheet(17/109 Pages) HYNIX

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2-1

2. GMS37XXX

Description

The GMS37XXX series are remote control transmitter which uses CMOS technology.

This enables transmission code outputs of different configurations, multiple custom code

output, and double push key output for easy fabrication.

The GMS37XXX series are suitable for remote control of TV, VCR, FANS, Air-

conditioners, Audio Equipment, Toys, Games etc.

It is possible to structure the 8 x 7 key matrix for GMS37112, and the 4 x 7 key matrix

for GMS37004.

Features

• Program memory

: 1,024 bytes for GMS37004/112/140

• Data memory : 32 Ø 4 bits

• 43 types of instruction set

• 3 levels of subroutine nesting

• Operating frequency : 300kHz ~ 1MHz at kHz version

2.4MHz ~ 4MHz at MHz version

• Instruction cycle :

OSC/6 at kHz version

OSC/48 at MHz version

• CMOS process (Single 3.0V power supply)

• Stop mode (Through internal instruction)

• Released stop mode by key input (Masked option)

• Built in Power-on Reset circuit

• Built in Low Voltage Detection circuit

• Built in capacitor for ceramic oscillation circuit at kHZ version

• Built in a watch dog timer (WDT)

• Low operating voltage: 2.0 ~ 3.6V (at 300kHz ~ 4MHz)

Chapter 2. GMS37XXX

Table 2-1 GMS37XXX series members

Series

GMS37004

GMS37112

GMS37140

Program memory

1,024

Data memory

Ø 4

I/O ports

Input ports

Output ports

7 (D0~D6)

10 (D0~D9)

Package

16DIP/SOP

20DIP/SOP/SSOP

24Skinny DIP/SOP

Ø 4

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