HT2040A データシートの表示（PDF） - Holtek Semiconductor

部品番号

コンポーネント説明

メーカー

HT2040A

Christmas Light Controller

Holtek Semiconductor 

HT2040A

Christmas Light Controller

Features

• Operating voltage: 4.5V~5.5V

• 4 SCR direct drive outputs

• 10 different groups of lighting patterns

• Up to 8 patterns for each group

• Demonstration function

• One key activation function

• Up to 23 patterns can be programmed inside

• Built-in PLL circuit

• 50Hz or 60Hz AC power supply applications

• Default 12 patterns for standard applica-

tions

General Description

The HT2040A is a low cost, low power CMOS

LSI chip designed for use in Christmas lighting

control products. It provides 4 SCR outputs to

control the lamps. The lamps can display up to

10 different groups of lighting patterns, where

each pattern or pattern group is chosen by ap-

propriate input keys.

The available 10 groups of lighting patterns can

all be displayed automatically or sequentially

using a single key. (12 patterns and 10 pre-pro-

grammed groups are provided by default.)

The internal PLL circuit allows synchronized

control of the SCRs at either 50Hz or 60Hz AC

supply voltage.

Pin Assignment

Block Diagram

1

26th Mar ’97

Share Link: