Table 1

Pin description

Note

1. 84CX40; 84CX43 denotes the types: PCA84C440, PCA84C443, PCA84C640, PCA84C643, PCA84C840 and PCA84C843.

84CX41; 84CX44 denotes the types: PCA84C441, PCA84C444, PCA84C641, PCA84C644, PCA84C841 and PCA84C844.

DESCRIPTION

84CX40; 84CX43 84CX41; 84CX44 84CX40; 84CX43 84CX41; 84CX44

Deviating pinning

DP1.0 to DP1.4

DP1.0 to DP1.3

41, 38, 37, 36, 34 41, 38, 37, 36

Derivative Port 1: quasi-bidirectional I/O lines.

T1

T1

29

34

Direct testable pin and event counter input.

DOSC1

−

28

−

Connection to RC oscillator of OSD clock.

−

DOSC1/DOSC2

−

28, 29

Connections to LC oscillator of OSD clock.

Mutual pinning

DP0.0/TDAC

1

Derivative Port 0: quasi-bidirectional I/O line or 14-bit DAC PWM.

DP0.1 to DP0.5/PWM1 to PWM5

2 to 6

Derivative Port 1: quasi-bidirectional I/O lines or 6-bit DAC PWM.

P1.0 to P1.4

7, 8, 10, 11 and 12

Port 1: quasi-bidirectional I/O lines.

P0.0 to P0.7

13 to 20

Port 0: quasi-bidirectional I/O port.

DP1.7/AFC

9

Derivative Port 1:

quasi-bidirectional I/O line or comparator input with 3-bit DAC.

DP0.6/SDA

40

DP0.7/SCL

39

INT/T0

35

External interrupt or direct testable line.

DP1.5 and DP1.6/VOW2 and VOW1

23, 22

Derivative Port 1:

quasi-bidirectional I/O lines or character video output.

RESET

33

Initialize input, active LOW.

XTAL2, XTAL1

32, 31

Oscillator output or input terminal for system clock.

TEST/EMU

30

Control input for testing and emulation mode. Ground for normal

operation.

VSYNCN

27

Vertical synchronous signal input.

HSYNCN

26

Horizontal synchronous signal input.

VOB

25

Blanking output.

VOW3

24

Character video output of OSD.

21

Ground.

42

Power supply.