Datasheet > AS1105WL

AS1105WL

更新时间： 2024-02-29 04:12:16

品牌	Logo	应用领域
艾迈斯 - AMSCO		驱动器
页数	文件大小	规格书
12页	142K
描述
Serially Interfaced, 4-Digit LED Driver

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AS1105WL 技术参数

是否Rohs认证：	符合	生命周期：	Contact Manufacturer
零件包装代码：	SOIC	包装说明：	SOP, SOP20,.4
针数：	20	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.63	其他特性：	BARGRAPH
数据输入模式：	SERIAL	显示模式：	DIGIT
接口集成电路类型：	LED DISPLAY DRIVER	JESD-30 代码：	R-PDSO-G20
JESD-609代码：	e3	湿度敏感等级：	3
复用显示功能：	NO	位数/字符：	4-DIGIT
功能数量：	1	区段数：	7
端子数量：	20	最高工作温度：	70 °C
最低工作温度：		封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP20,.4
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	260	电源：	5 V
认证状态：	Not Qualified	座面最大高度：	2.64 mm
子类别：	Display Drivers	最大供电电压：	5.5 V
最小供电电压：	4 V	标称供电电压：	5 V
表面贴装：	YES	温度等级：	COMMERCIAL
端子面层：	MATTE TIN	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	Base Number Matches：	1

AS1105WL 数据手册

Data Sheet AS1105

Serially Interfaced, 4-Digit LED Driver

DATA SHEET

AS1105

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. The AS1105

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 AS1105

can be reset by software and an external clock can be used.

Several test modes support easy debugging.

Key Features

Cost effective version of AS1100 functionality for

applications up to 4-Digits

10MHz Serial Interface

Individual LED Segment Control

Decode/No-Decode Digit Selection

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

AS1105 is offered in a 20 SOIC package.

Drive Common-Cathode LED Display

Software Reset¹

Optional External clock

Applications

20 pin SO Packages

Bar-Graph Displays

Industrial Controllers

Panel Meters

General Description

The AS1105 is an LED driver for 7 segment numeric

displays of up to 4 digits. The AS1105 can be programmed

via a conventional 4 wire serial interface. It includes a BCD

code-B decoder, a multiplex scan circuitry, segment and

display drivers and a 32 Bit memory. The memory is used to

store the LED settings, so that continuous reprogramming is

not necessary.

LED Matrix Displays

White Goods

TOP

DOUT

DIN

SEG D

+5V

VDD

SEG DP

SEG E

DIG0

9.53k

MOSI

17 SEG C

16 VDD

GND

DIG2

DIG3

ISET

DIN

DIG0-DIG3

4 Digits

ISET

AS1105

GND

DIG1

LOAD

CLK

SEG G

SEG B

SEG F

SEG A

µP I/O

SCK

LOAD

CLK

SEG A-G

SEP DP

8 Segments

GND

Pin Configuration

Typical Application Circuit

4-Digit µP Display

¹Software Reset and external clock are not supported by

MAX7219

Revision 1.32, Oct. 2004

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