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.