HT2040A Ver la hoja de datos (PDF) - Holtek Semiconductor

Número de pieza

componentes Descripción

Fabricante

HT2040A

Christmas Light Controller

Holtek Semiconductor 

Pad Coordinates

HT2040A

Unit: mil

Pad No. X

Y Pad No. X

Y

1 –46.47 –0.17 9 46.47 –23.89

2 –46.47 –7.01 10 46.47 –16.24

3 –46.47 –14.66 11 46.47 –4.51

4 –46.47 –32.22 12 46.47 42.59

5 –46.47 –42.59 13 35.17 42.59

6 –34.74 –42.59 14 23.86 42.59

7 38.82 –42.59 15 11.62 42.59

8 46.47 –42.59 16 –0.32 42.59

Chip size: 107 × 99 (mil)2

* The IC substrate should be connected to VDD in the PCB layout artwork.

Pad Description

Pad No. Pad Name

I/O

Internal

Connection

Description

1

L4

Lamp driving signal

O

CMOS L4 generates a high SCR trigger signal to control the

lamp intensity.

2

VDD

I

—

Power supply (positive)

Demo function or group-5 selection input

If MODE is connected to VSS or open, DK1 will enable

3

DK1

I

CMOS the demo mode, i.e., show all the configurations (group-

Pull-Low 1 ~ group-10) by being momentarily connected to VDD.

If MODE is connected to VDD, group-5 will be shown by

connecting DK1 to VDD.

One key activated display or group-6 selection

4

SK2

I

CMOS

Pull-Low

If MODE is connected to VSS or floating, SK2 will

display the next group by being momentarily pressed.

If MODE is connected to VDD, group-6 will be shown by

connecting SK2 to VDD.

5~8

K3~K6

I

CMOS

Pull-Low

Group1 ~ Group4 selection

If MODE is connected to VSS or floating, group-7~

group-10 will be shown by connecting MODE to VDD.

PLL synchronous signal input

9

SYNC

I

CMOS

The PLL circuit is synchronized to the AC power

supply. The system can operate with a 60Hz or 50Hz

AC power supply system.

10

C

I

NMOS For low pass PLL filters

2

26th Mar ’97

Share Link: