GMS34004 Datasheet, PDF (6/105 Pages) Hynix Semiconductor – 4-BIT SINGLE CHIP MICROCOMPUTERS

CHAPTER 1. Introduction
Chapter 1. Introduction
OUTLINE OF CHARACTERISTICS
The GMS340 series are remote contol 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 GMS340 sereis are suitable for remote control of TV, VCR, FANS, Air-
conditioners, Audio Equipments, Toys and Games etc.
Characteristics
¡Ü Program memory : 512 bytes for GMS34004/012
1024 bytes for GMS34112/120/140
¡Ü Data memory : 32 ¡¿ 4 bits
¡Ü 43 types of instruction set
¡Ü 3 levels of subroutine nesting
¡Ü 1 bit output port for a large current (REMOUT signal)
¡Ü Operating frequency : 300~500KHz or 2.4~4MHz for 300~500KHz operation
(Masked option)
¡Ü Instruction cycle : f_OSC/6 (at 300~500KHz)
f_OSC/48 (at 2.4~4MHz)
¡Ü CMOS process (Single 3.0V power supply)
¡Ü Stop mode (Through internal instruction)
¡Ü Released stop mode by key input (Masked option)
¡Ü Built in capacitor for ceramic oscillation circuit (Masked option)
¡Ü Built in a watch dog timer (WDT)
¡Ü Low operating voltage : 2.0~4.0V (at 300~500KHz)
2.2~4.0V (at 2.4~4MHz)
Series
GMS34004 GMS34012 GMS34112 GMS34120 GMS34140
Program memory
512
¡ç
1024
¡ç
¡ç
Data memory
32 ¡¿ 4
¡ç
¡ç
¡ç
¡ç
I/O ports
-
4
¡ç
¡ç
¡ç
Input ports
4
¡ç
¡ç
¡ç
¡ç
Output ports
Package
6
D0 ~ D5
16DIP/SOP
6
D0 ~ D5
20DIP/SOP
6
D0 ~ D5
¡ç
8
D0 ~ D7
24DIP/SOP
10
D0 ~ D9
¡ç
Table 1-1 GMS340 series members
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