Chapter 1. Introduction
CHAPTER 1. Introduction
OUTLINE OF CHARACTERISTICS
The GMS340 series are remote control transmitter which uses CMOS technology,
and the EPROM version of GMS34XXX series.
This enables transmission code outputs of different configurations, multiple custom
code output, and double push key output for easy fabrication.
The GMS340 series are suitable for remote control of TV, VCR, FANS, Air-
conditioners, Audio Equipments, Toys, Games etc.
Characteristics
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Program memory : 512bytes for GMS34004T
1,024 bytes for GMS34112T/140T
Data memory : 32
¡¿
4 bits
43 types of instruction set
3 levels of subroutine nesting
1 bit output port for a large current (REMOUT signal)
Operating frequency :300KHz~500KHz at KHz version
2.4MHz~4MHz at MHz version
300KHz~4.2MHz at WIDE version
Instruction cycle : f
OSC
/6 at KHz and WIDE version
f
OSC
/48 at MHz version
CMOS process (3.0V or 5.0V power supply)
Stop mode (Through internal instruction)
Released stop mode by key input
Built in capacitor for ceramic oscillation circuit at KHz version
Built in a watch dog timer (WDT)
Low operating voltage : 2.2~4.5V (at KHz and MHz version)
Normal operating voltage: 4.0~5.0V (at WIDE version)
Series
Program memory
Data memory
I/O ports
Input ports
Output ports
Package
KHz version
MHz version
WIDE version
GMS34004T
512
32
¡¿
4
-
4
6
D0 ~ D5
16DIP
GMS34004TK
GMS34004TM
GMS34004TW
GMS34112T
1,024
¡ç
4
¡ç
¡ç
¡ç
20DIP/SOP/SSOP
GMS34112TK
GMS34112TM
GMS34112TW
GMS34140T
¡ç
¡ç
¡ç
¡ç
10
D0 ~ D9
24DIP/SOP
GMS34140TK
GMS34140TM
GMS34140TW
Table 1-1 GMS34XXXT series members
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HYNIX [ HYNIX SEMICONDUCTOR ]
