PCA84C846 Ver la hoja de datos (PDF) - Philips Electronics

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Fabricante

PCA84C846

Microcontrollers for TV tuning control and OSD applications

Philips Electronics 

Philips Semiconductors

Microcontrollers for TV tuning

control and OSD applications

Preliminary specification

PCA84C646; PCA84C846

5.2 Pin description

Table 1 Pin description for PCA84C646P and PCA84C846P; SDIP42 (see Fig.2)

SYMBOL

VOB

VOW2

DP22/VOW1

DP23/VOW0

VSYNC

HSYNC

P10/DXWR

P11/DXRD

DP13/TDAC

P12/DXALE

T3

P14/DXINT

P00 to P07

VSS

DP00/PWM00 to DP07/PWM07

TEST/EMU

XTAL1

XTAL2

RESET

T1

INT/T0

DP12/AFC2

DP11/AFC1

DP10/AFC0

DP21/SCL

DP20/SDA

C

VDD

PIN

1

2

3

4

5

6

7

8

9

10

11

12

13 to 20

21

29, 28, 27, 26,

25, 24, 23, 22

30

31

32

33

34

35

36

37

38

39

40

41

42

DESCRIPTION

Video fast blanking output signal.

Video character outputs or derivative port lines.

Vertical synchronization signal input, active LOW.

Horizontal synchronization signal input, active LOW.

Port line 10 or emulation DXWR signal input.

Port line 11 or emulation DXRD signal input.

Derivative I/O port or 14-bit D/A PWM.

Port line 12 or emulation DXALE signal input.

Secondary 8-bit counter input pin (Schmitt-trigger).

Port line 14 or emulation DXINT signal input.

General I/O port lines (10 mA).

Ground.

Derivative I/O port;

6-bit PWM (PWM04 to 07) or 7-bit PWM (PWM00 to 03).

Control input of testing and emulation mode, normally LOW.

Oscillator input terminal for system clock.

Oscillator output terminal for system clock.

Initialize input, active LOW.

Direct testable pin and event counter input.

External interrupt/direct testable pin.

Derivative I/O port or comparator input with 4-bit DAC.

Derivative port line or I2C-bus clock line.

Derivative port line or I2C-bus data line.

External capacitor input for on chip PLL OSD oscillator.

Power supply.

1995 Jun 15

7

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