Description
SD6830 is a remote control transmitter, consists of the optimized 4-bit CPU with ROM and RAM. It contains power-on reset, watchdog timer and carrier frequency generator. The SD6830 provide a various carrier frequency for encoding output of key matrix and has built-in transistor to drive infrared LED. The SD6830 is supported with a software development tool, which allows code development in a PC environment. It allows the user to simulate the SD6830 on an instruction level.

Features
• Number of basic instructions ------------------------------------- 45
• Instruction cycle time (one word instruction)
   At Fsys=480KHz ---------------------------------------- 16.67uS
   At Fsys=455kHz ---------------------------------------- 17.58uS
· Memory size
   ROM --------------------------------------------------- 1024 x 8 Bits
   RAM ------------------------------------------------------ 32 x 4 Bits
• Input ports (D0 ~ D3, E0 ~ E3 : with pull-up resistor)
• Output ports (C, G, K, F0 ~ F7)
• Carrier frequency generator
   Fsys/12 (1/2 duty), Fsys/12 (1/3 duty), Fsys/12 (1/4 duty),
   Fsys/8 (1/2 duty), Fsys/8 (1/4 duty), Fsys/11 (4/11 duty), No carrier
• Watchdog Timer
• Built-in power on reset
• Single power supply ------------------------------------------------ 1.8V ~ 3.6V
• Power dissipation (stop mode , VDD = 3V) ----------------------- Less than 3uW
• Package ------------------------------------------------------------- 20/24 DIP, 20/24 SOP
• Low-power system applications such as an infrared remote controller