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W78CE354P Datasheet(PDF) 1 Page - Winbond |
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W78CE354P Datasheet(HTML) 1 Page - Winbond |
1 / 44 page Preliminary W78C354 MONITOR MICROCONTROLLER Publication Release Date: October 1996 - 1 - Revision A1 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 I 2C port, a DDC port, a watchdog timer, and glue logic specially designed for monitor applications. The W78C354 is suitable for monitors applying VESA DDC1/DDC2B/DDC2B+. This product's high level of integration and the availability of a one-time programmable (OTP) flash PROM version(the W78E354) help to reduce unit costs, development costs, and development time. 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 I 2C port • One DDC port (master/slave mode I 2C, 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) |
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