PCE84C487中文資料飛利浦?jǐn)?shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

GENERAL DESCRIPTION

The PCE84C486 and PCE84C487 are low-cost microcontrollers and have been designed for use with auto-sync monitors, handling mode detection, digital control and Voltage Synthesized Tuning (VST). These microcontrollers have no on-chip OSD function.

FEATURES

General

? CMOS 8-bit CPU (enhanced 8048 CPU) with 4 kbytes system ROM and 128 bytes system RAM

? One 8-bit timer/event counter (T1) and one 8-bit counter (T3) triggered by external input

? Three single level vectored interrupt sources: external (INTN), counter/timer and I2C-bus

? 2 directly testable inputs T0 and T1

? On-chip oscillator clock frequency: 1 to 10 MHz

? On-chip Power-on-reset with low power detector

? The PCE84C486 has eleven quasi-bidirectional I/O lines, the PCE84C487 has twelve. The configuration of each I/O line individually selected by mask option

? Idle and Stop modes for reduced power consumption

? Operating temperature: ?25 to +85 °C

? Operating voltage: 4.5 to 5.5 V

? Packages: SDIP32 for the PCE84C486; SDIP42 for the PCE84C487.

Special

? Master-slave I2C-bus interface

? Four 6-bit Pulse Width Modulated outputs

? Four 7-bit Pulse Width Modulated outputs

? Four 8-bit Pulse Width Modulated outputs (PCE84C487 only)

? One 14-bit Pulse Width Modulated output

? Two 4-bit Analog-to-Digital Converter (ADC) channels

? 14 derivative I/O ports

? Watchdog Timer.