DMC73C168-015

INTRODUCTION

The DMC73C168 is an 8-Bit microcontroller that contains Prescaler, PLL Frequency Synthesizer and 2 channel A/D converter for Digital Tuning System.
The device is provided with abundant I/O ports and 2 channel serial interface ports (SI/O) controlled by powerful instruction. The package is 80-pin QFP and high performance CPU and internal peripheral allow flexible and easy system design in car-stereo, radio tuner and Hi-Fi audio system.

Key Features

■ CMOS Technology
■ Memory Configuration
● 256 Byte On-Chip RAM Register file plus 128 Byte Peripheral Free RAM
● Memory-Mapped Ports for Easy Addressing
● 16K-Byte On-Chip ROM
■ On-Chip PLL Frequency Synthesizer with Dual Modules Prescaler
● Independant Frequency input ports : Max 150MHz at FM, 40MHz at AM
● Two Types of Frequency Dividing Method : Pulse Swallow and Direct
● 8 Kinds of reference Frequencies : 1, 5, 6.25, 9, 10, 12.5, 25 and 50KHz
■ 2 Channel SIO port
■ 2 Channel On-Chip Timer
● 16-Bit with 5-Bit Prescaler and 16-Bit capture latch, timer outputs
● Internal interrupt with Automatic timer Reload
■ On-Chip A/D Converter
● 2-channels with 8 bit resolution
● Ratiometric Conversion
● 144 Machine-Cycles Conversion time (64us)
■ On-Chip IF Counter
● 17-Bit, Gate Time : Program can select from 1ms to 15ms
● maximum Input Frequency : FM IF = 20MHz, AM IF = 5MHz
■ Easy Interrupt Handling
● External Interrupts with Schmitt-Trigger Input
● Software Calls through Interrupt Vectors
● Software Monitoring of Interrupt Status
● Precise Interrupt Timing through Capture Latch
■ Selectable Beep clock : 417Hz, 1KHz, 1.25KHz, 2.5KHz
■ 64 I/O Pins
● 64 Bidirectional Pins
■ Wide Operating Range
● Voltage(VDD) : 5V ¡ 10% ¾
● Clock : 4.5MHz
● Temperature : -40 deg to 85 deg
● One Machine Execution Time : 0.44us (with 4.5MHz Crystal Oscillator)
■ Low operating Current
● Halt Mode for Power Savings (Typical : 1uA at OSC stop)
● Warm-up mode for avoid unstable osc operation at the wake time from Halt mode.
The warm-up time can be adjustable by S/W.
■ Package
● 80 QFP (Quad Flat Package)
■ Development Support
● Evaluation Module : EVM73C00A & ADP73C168
● Assembler/Linker Cross Support for Popular Hosts