Datasheet > AS1100_1

AS1100_1

更新时间： 2022-12-20 06:16:48

品牌	Logo	应用领域
艾迈斯 - AMSCO		驱动器
页数	文件大小	规格书
17页	391K
描述
Serially Interfaced, 8-Digit LED Driver

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AS1100_1 数据手册

Data Sheet

AS1100

Serially Interfaced, 8-Digit LED Driver

1 General Description

2 Key Features

ꢀ

10MHz Serial Interface

The AS1100 is an LED driver for 7 segment numeric

displays of up to 8 digits. The AS1100 can be

programmed via a conventional 4 wire serial interface.

Individual LED Segment Control

Decode/No-Decode Digit Selection

The device includes a BCD code-B decoder, a multiplex

scan circuitry, segment and display drivers, and a 64 Bit

memory. The memory is used to store the LED settings,

so that continuous reprogramming is not necessary.

20µA Low-Power Shutdown (Data Retained)

Extremely low Operating Current 0.5mA in open

loop

ꢀ

Digital and Analog Brightness Control

Display Blanked on Power-Up

Drive Common-Cathode LED Display

Software Reset

Every individual segment can be addressed and

updated separately. Only one external resistor is

required to set the current through the LED display.

Brightness can be controlled either in an analog or

digital way. The user can choose the internal code-B

decoder to display numeric digits or to address each

segment directly.

Optional External clock

24-pin DIP and SOIC Packages

The AS1100 features an extremely low shutdown

current of only 20µA and an operational current of less

than 500µA. The number of visible digits can be

programmed as well. The AS1100 can be reset by

software and an external clock can be used. Several test

modes support easy debugging.

3 Applications

The AS1100 is an ideal solution for Bar-Graph Displays,

Industrial Controllers, Panel Meters, LED Matrix

Displays and White Goods such as washing machines

and dishwasher.

The AS1100 is offered in a 24-pin DIP and SOIC

packages.

Figure 1. Typical Application Diagram – Single Cell to 3.3V Synchronous Boost Converter

+5V

9.53k

V^DD

DIFG0-DIG3

ISET

8 Digits

DIN

MOSI

LOAD

µP I/O

SCK

SEG A-G

SEP DP

CLK

GND

8 Segments

GND

8-Digit µP Display

www.austriamicrosystems.com

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