GENERAL DESCRIPTION
The W78E354 is a stand-alone high-performance microcontroller ASIC specially designed for use in monitor control applications. Using the Winbond 0.8mDPDM process, the W78E354 integrates an embedded 8031 microcontroller core, 16K bytes of Flash cell, 512 bytes of RAM and a number of dedicated hardware functions. These hardware functions include a 6-bit A/D converter, two/fourteen 12/8-bit PWM static DACs, one/three 12/8-bit PWM dynamic DACs, a sync processor, one DDC port, a watchdog timer and other custom glue logic. Additional special function registers are incorporated to control the on-chip peripheral hardware.

FEATURES
· 80C31 MCU core included
· 16K bytes Flash OTP memory for program storage
· Total 512 bytes of on-chip data RAM: 256 bytes accessed as in the 80C32, 256 bytes accessed as external data memory via "MOVX @Ri".
· One SPI/RS232 port (a serial port of 8051 standard)
· One external interrupt input
· Two timers/counters
· PWM DACs:
-Two 12-bit PWM/BRM Static DACs
-Fourteen 8-bit PWM Static DACs
-One 12-bit PWM/BRM Dynamic DAC
-Three 8-bit PWM Dynamic DACs
· One 6-bit ADC with 4 multiplexed analog inputs
· Sync Processor:
-Horizontal & Vertical Polarity Detector
-Sync Separator for composite sync
-Horizontal & Vertical Frequency Counter
-Programmable dummy frequency generator
-Programmable H-clamp pulse output
-SOA output (hardware H frequency change detection)
· One DDC port (master/slave mode I2C with two slave address reg., support DC1/DDC2B/DDC2B+)
· One 8-bit Auto-reload timer for software time base
· Watchdog Timer
· Two 15 mA output pins for driving LEDs
· Power down reset
· Clock: DC to 20 MHz
· Packaged in 68-pin PLCC, 48-pin DIP and 40-pin DIP