GENERAL DESCRIPTION
The W78C354 is a high-performance monitor microcontroller that is based on the embedded 80C32 microcontroller core. The W78C354 includes a 16 KB ROM, 512 byte internal data RAM, a 6-bit A/D converter, two 12-bit and fourteen 8-bit PWM static DACs, one 12-bit and three 8-bit PWM dynamic DACs, a sync processor, an I2C port, a DDC port, a watchdog timer, and glue logic specially designed for monitor applications.

FEATURES
· 80C32 MCU core included
· 20 MHz maximum operating frequency
· 16 KB ROM for program storage
· 512 bytes of on-chip data RAM:
  - Lower 256 bytes accessed as in the 80C32
  - Higher 256 bytes accessed as an external data memory via "MOVX @Ri".
· One SPI/RS232 port (80C32 standard serial port)
· One external interrupt input
· Two timers/counters
· One 8-bit auto-reload timer for software time base
· 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
  - Safe operation area (SOA) output
  - Self-test pattern output
· One software I2C port
· One DDC port (master/slave mode I2C, supports DDC1/DDC2B/DDC2B+)
· Watchdog timer
· Moire cancellation
· Two 15 mA output pins for driving LED
· Power-low reset
· OTP type: W78E354 (16 KB flash PROM)
· Three package types:
  - PLCC68 (W78C/E354P), DIP48 (W78C/E354E), DIP40 (W78C/E354)