PCF84C440 Ver la hoja de datos (PDF) - Philips Electronics

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PCF84C440

8-bit microcontrollers with OSD and VST

Philips Electronics 

Philips Semiconductors

8-bit microcontrollers with OSD and VST

Product specification

84C44X; 84C64X; 84C84X

handbook, full pagewidth

'MOV instruction'

DATA LATCH VSTH

'MOV instruction'

DATA LATCH VSTL

7

7

DATA LOAD

TIMING PULSE

polarity

control bit

LOAD DAC DATA LATCH VSTREG

7

7

COARSE PWM

OUT1

FINE

OUT2

ADD

Q

Q

P14LVL

Q14 to Q8

14-BIT COUNTER

Q7 to Q1

MCD177

TDAC output

f0

Fig.10 Block diagram of the 14-bit PWM DAC.

andbook, full pagewidth

t sub0

t sub1

tr

t subn

OUT 1

1996 Nov 29

t0 × (VSTH + 1)

Fig.11 Coarse adjustment output (OUT1).

13

t sub127

MCD313

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