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ICM7218DIJIR5254

更新时间： 2024-11-12 03:29:39
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英特矽尔 - INTERSIL 驱动器接口集成电路微处理器输出元件
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11页 253K
描述
8-Digit LED Microprocessor-Compatible Multiplexed Display Decoder Driver

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ICM7218DIJIR5254 数据手册

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ICM7218  
®
Data Sheet  
February 15, 2007  
FN3159.2  
8-Digit LED Microprocessor-Compatible  
Multiplexed Display Decoder Driver  
Features  
• Microprocessor Compatible  
The ICM7218 series of universal LED driver systems  
provide, in a single package, all the circuitry necessary to  
interface most common microprocessors or digital systems  
to an LED display. Included on chip are an 8-byte static  
display memory, two types of 7-segment decoders, multiplex  
scan circuitry, and high current digit and segment drivers for  
either common-cathode or common-anode displays.  
• Total Circuit Integration On Chip Includes:  
- Digit and Segment Drivers  
- All Multiplex Scan Circuitry  
- 8-Byte Static Display Memory  
- 7-Segment Hexadecimal and Code B Decoders  
• Output Drive Suitable for LED Displays Directly  
• Common Anode and Common Cathode Versions  
• Single 5V Supply Required  
The lCM7218A and 1CM7218B feature two control lines  
(WRITE and MODE) which write either 4 bits of control  
information (DATA COMING, SHUTDOWN, DECODE, and  
HEXA/CODE B) or 8 bits of display input data. Display data  
is automatically sequenced into the 8-byte internal memory  
on successive positive going WRITE pulses. Data may be  
displayed either directly or decoded in Hexadecimal or Code  
B formats.  
• Data Retention to 2V Supply  
• Shutdown Feature - Turns Off Display and Puts Chip Into  
Low Power Dissipation Mode  
• Sequential and Random Access Versions  
• Decimal Point Drive On Each Digit  
The ICM7218C and lCM7218D feature two control lines  
(WRITE and HEXA/CODE B/SHUTDOWN), 4 separate  
display data input lines, and 3 digit address lines. Display  
data is written into the internal memory by setting up a digit  
address and strobing the WRITE line low. Only Hexadecimal  
and Code B formats are available for display outputs.  
Related Literature  
• Technical Brief TB363 “Guidelines for Handling and  
Processing Moisture Sensitive Surface Mount Devices  
(SMDs)”  
ICM7218C COMMON ANODE  
ICM7218D COMMON CATHODE  
ICM7218A COMMON ANODE  
ICM7218B COMMON CATHODE  
ID0-ID3  
ID7  
ID4-ID7 MODE WRITE  
ID0-ID7  
HEXADECIMAL/  
DA0-DA2  
DIGIT  
8
CONTROL  
INPUTS  
INPUT  
DATA  
CODE B/  
DATA  
INPUT  
SHUTDOWN  
ADDRESS  
WRITE  
1
1
1
1
8
4
5
3
DECODE  
1
SHUTDOWN  
1
CONTROL  
LOGIC  
SHUTDOWN  
THREE LEVEL  
INPUT LOGIC  
HEXA/CODE B  
1
8
WRITE  
1
8-BYTE  
STATIC  
RAM  
WRITE ADDRESS  
COUNTER  
ADDRESS  
DECODER  
8
8
1
8-BYTE  
STATIC  
RAM  
1
1
8
8
READ  
7
4
8
READ  
ADRESS  
MULTIPLEXER  
ADRESS, DIGIT  
MULTIPLEXER  
4
HEXADECIMAL/  
CODE B  
DECODER  
3
7
5
HEXADECIMAL/  
CODE B  
DECODER  
MULTIPLEX  
OSCILLATOR  
1
7
7
MULTIPLEX  
OSCILLATOR  
1
DECODE/  
NO-DECODE  
8
1
7
INTERDIGIT  
DECIMAL  
POINT  
BLANKING  
1
INTERDIGIT  
BLANKING  
DECIMAL  
POINT  
8
8-DIGIT  
DRIVERS  
8-SEGMENT  
DRIVERS  
8-SEGMENT  
DRIVERS  
8-DIGIT  
DRIVERS  
FIGURE 1. FUNCTIONAL DIAGRAMS  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Intersil and Design is a trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2001, 2007. All Rights Reserved  
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ICM7218DIJIR5254 替代型号

型号 品牌 替代类型 描述 数据表
ICM7218DIJI INTERSIL

完全替代

 8-Digit LED Microprocessor-Compatible Multiplexed Display Decoder Driver
ICM7218BIJI INTERSIL

完全替代

 8-Digit LED Microprocessor-Compatible Multiplexed Display Decoder Driver
ICM7228BIPIZ INTERSIL

功能相似

 8-Digit, Microprocessor-Compatible, LED Display Decoder Driver

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