SN74LS47D
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Texas Instruments SN74LS47D

Manufacturer No:
SN74LS47D
Manufacturer:
Texas Instruments
Package:
Tube
Description:
IC DRVR 7 SEGMENT 16SOIC
Delivery:
Payment:
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Product Introduction

Overview

The SN74LS47D is a BCD-to-Seven Segment Decoder/Driver produced by Texas Instruments. This integrated circuit (IC) is designed to convert binary-coded decimal (BCD) input into the appropriate signals to drive a seven-segment display. It is widely used in digital display applications, offering a cost-effective and reliable solution for converting numerical data into a human-readable format. The SN74LS47D is particularly suitable for applications in industrial control systems, consumer electronics, and instrumentation, targeting engineers and designers who require efficient display interfacing.

Key Specifications

ParameterValueUnitNotes
Supply Voltage4.75 to 5.25VOperating range
Input Current0.36mAMax at 5.25V
Output Current24mAMax per segment
Propagation Delay25nsTypical
Operating Temperature0 to 70°CCommercial range
Package TypeSOIC-16-Surface mount

Key Features

  • BCD-to-Seven Segment Conversion: Converts 4-bit BCD input to seven-segment display outputs.
  • Open-Collector Outputs: Allows direct interfacing with common-anode displays.
  • Lamp Test Input: Enables testing of all display segments.
  • Ripple Blanking Input/Output: Supports cascading for multi-digit displays.
  • Low Power Consumption: Ideal for battery-operated devices.

Applications

The SN74LS47D is widely used in applications requiring numerical display, such as digital clocks, calculators, and instrumentation panels. Its ability to drive seven-segment displays makes it a popular choice in industrial control systems for displaying process variables. Additionally, it is used in consumer electronics, including home appliances and audio equipment, to provide user-friendly interfaces. Its robust design and compatibility with common-anode displays make it a versatile component in various electronic systems.

Q & A

1. What is the purpose of the SN74LS47D?

The SN74LS47D is a BCD-to-seven segment decoder/driver used to convert binary-coded decimal (BCD) input into signals that drive a seven-segment display.

2. What is the operating voltage range of the SN74LS47D?

The operating voltage range is 4.75V to 5.25V.

3. Can the SN74LS47D drive common-cathode displays?

No, the SN74LS47D is designed to drive common-anode displays.

4. What is the maximum output current per segment?

The maximum output current per segment is 24mA.

5. Does the SN74LS47D support multi-digit displays?

Yes, it supports multi-digit displays through its ripple blanking input/output feature.

6. What is the typical propagation delay of the SN74LS47D?

The typical propagation delay is 25ns.

7. How does the lamp test input function?

The lamp test input allows all segments of the display to light up, enabling a quick test of the display's functionality.

8. What is the package type of the SN74LS47D?

The SN74LS47D comes in an SOIC-16 surface-mount package.

9. Is the SN74LS47D suitable for battery-operated devices?

Yes, its low power consumption makes it suitable for battery-operated devices.

10. What is the operating temperature range of the SN74LS47D?

The operating temperature range is 0°C to 70°C.

Product Attributes

Display Type:LED
Configuration:7 Segment
Interface:BCD
Digits or Characters:- 
Current - Supply:7 mA
Voltage - Supply:4.75V ~ 5.25V
Operating Temperature:0°C ~ 70°C
Mounting Type:Surface Mount
Package / Case:16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:16-SOIC
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Similar Products

Part Number SN74LS47D SN74LS47DR SN74LS47N SN74LS247D
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active
Display Type LED LED LED LED
Configuration 7 Segment 7 Segment 7 Segment 7 Segment
Interface BCD BCD BCD BCD
Digits or Characters - - - -
Current - Supply 7 mA 7 mA 7 mA 7 mA
Voltage - Supply 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C 0°C ~ 70°C 0°C ~ 70°C
Mounting Type Surface Mount Surface Mount Through Hole Surface Mount
Package / Case 16-SOIC (0.154", 3.90mm Width) 16-SOIC (0.154", 3.90mm Width) 16-DIP (0.300", 7.62mm) 16-SOIC (0.154", 3.90mm Width)
Supplier Device Package 16-SOIC 16-SOIC 16-PDIP 16-SOIC

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