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