描述 Description

MLC081B series integrates an 8-bit CPU core, SRAM, timer, D/A and system control circuits by a CMOS silicon gate technology. The ROM can store voice, melody, data table and program.
Twenty-four I/O pins can be used for keypad control, motor control, IR application, LED indicators or communication with other systems. This chip can implement a dual tone melody function with programmable envelope, which can perform harmonic music with different timbres.
This chip is very suitable for instruments, speech products, and intelligent educational toys, etc.

特性 Features

· Single chip 8-bit CPU
· Operation voltage: 2.4V to 5.5V
·
·Memory·ROM (shared by program and data): 256K ~ 48KBytes
·Data RAM: 256 Bytes

· 24 input/output pins with wake-up function
·Two power-down modes for saving power consumption:·Sleep mode: micro-controller no operation (main- and sub-oscillator still oscillating)
·Stop mode: micro-controller no operation(all oscillators stop oscillating)

· Two current DAC output for voice synthesizer
· Dual-channel melody with programmable envelope
· One serial input port and voltage comparator built-in
· Three re-loadable 16-bit timers
· One watchdog timer built-in
·Oscillator·Single or dual clock operation is selected by code option
·Main oscillator operation at crystal or RC mode is selected by code option
·Crystal/Ceramic oscillator up to 4MHz @ 2.4V and 8MHz @ 3.6Voption
·RC oscillator up to 4MHz @ 2.4V

·
·Application Field·Toy controller
·General IR controller