HMS38112 Datasheet, PDF (4/73 Pages) List of Unclassifed Manufacturers – 4-BIT SINGLE CHIP MICROCOMPUTERS

Chapter 1.HMS38112
CHAPTER 1. HMS38112
Outline of characteristics
The HMS38112 is 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 HMS38112 is suitable for remote control of TV, VCR, FANS, Air-conditioners,
Audio Equipments, Toys, Games etc.
Characteristics
• Program memory : 1,024 bytes
Ø • Data memory : 32 4 bits
• 43 types of instruction set
• 3 levels of subroutine nesting
• Operating frequency : 2.4MHz ~ 4MHz
• Instruction cycle : f_OSC/48
• CMOS process (Single 3.0V power supply)
• Stop mode (Through internal instruction)
• Released stop mode by key input(mask option)
• Built in Power-on Reset circuit
• Built in Transistor for I.R LED Drive : I_OL=250mA at V_DD=3V and V_O=0.3V
• Built in Low Voltage reset circuit
• Built in a watch dog timer (WDT)
• Low operating voltage : 2.0 ~ 3.6V
• 20 pin PDIP/SOP/SSOP package
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