描述 Description

The CXP86541/86549/86561 are the CMOS 8-bit microcomputer integrating on a single chip an A/D converter, serial interface, timer/counter, time-base timer, on-screen display function, I2C bus interface, PWM output, remote control reception circuit, HSYNC counter, watchdog timer, 32kHz timer/counter besides the basic configurations of 8-bit CPU, ROM, RAM, I/O ports.

The CXP86541/86549/86561 also provide a sleep function that enables to lower the power consumption.

特性 Features

? A wide instruction set (213 instructions) which covers various types of data

– 16-bit operation/multiplication and division/ Boolean bit operation instructions

? Minimum instruction cycle 250ns at 16MHz operation (4.5 to 5.5V)

122μs at 32kHz operation (2.7 to 5.5V)

? Incorporated ROM 40K bytes (CXP86541)

48K bytes (CXP86549)

60K bytes (CXP86561)

? Incorporated RAM 1536 bytes (Excludes VRAM for on-screen display and sprite RAM)

? Peripheral functions

– A/D converter 8-bit 6-channel successive approximation method (Conversion time of 3.25μs at 16 MHz)

– Serial interface 8-bit clock sync type, 1 channel

– Timer 8-bit timer 8-bit timer/counter 19-bit time-base timer 32kHz timer/counter

– On-screen display (OSD) function 12 × 16 dots, 512 character types, 15 character colors, 2 lines × 24 characters, frame background 8 colors/ half blanking, background on full screen 15 colors/ half blanking edging/shadowing/ rounding for every line, background with shadow for every character, double scanning, sprite OSD, 12 × 16 dots, 1 screen, 8 colors for every dot

– I2C bus interface

– PWM output 8 bits, 6 channels 14 bits, 1 channel

– Remote control reception circuit 8-bit pulse measurement counter, 6-stage FIFO – HSYNC counter 2 channels

– Watchdog timer

? Interruption 13 factors, 13 vectors, multi-interruption possible

? Standby mode Sleep

? Package 52-pin plastic SDIP

? Piggyback/evaluator CXP86490 64-pin ceramic PSDIP (Supports custom font)