SN74LS247NG4

Product Overview

Category

SN74LS247NG4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital display applications, specifically for driving 7-segment LED displays.

Characteristics

• Low power consumption
• High-speed operation
• Wide operating voltage range
• BCD-to-Seven-Segment decoder/driver functionality

Package

SN74LS247NG4 is available in a DIP (Dual In-line Package) format.

Essence

The essence of SN74LS247NG4 lies in its ability to convert Binary Coded Decimal (BCD) inputs into signals that can drive a 7-segment LED display.

Packaging/Quantity

SN74LS247NG4 is typically packaged in tubes or reels, with quantities varying depending on the supplier.

Specifications

• Supply Voltage: 4.75V to 5.25V
• Input Voltage: 0V to Vcc
• Output Voltage: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 30 MHz
• Maximum Propagation Delay: 45 ns

Detailed Pin Configuration

1. A
2. B
3. C
4. D
5. LT
6. BI/RBO
7. GND
8. F
9. E
10. CARRY OUT
11. LT
12. RBO
13. a
14. b
15. c
16. d
17. e
18. f
19. g
20. Vcc

Functional Features

SN74LS247NG4 offers the following functional features:

• BCD-to-Seven-Segment decoding
• Active-low outputs for driving common-anode 7-segment displays
• Cascadable for larger display applications
• Internal carry-out signal for cascading multiple devices

Advantages and Disadvantages

Advantages

• Low power consumption makes it suitable for battery-powered applications
• High-speed operation enables real-time display updates
• Wide operating voltage range allows compatibility with various systems
• Cascadable design simplifies multi-digit display implementations

Disadvantages

• Limited to driving common-anode 7-segment displays
• Requires additional components for driving common-cathode displays

Working Principles

SN74LS247NG4 operates by receiving a BCD input (A, B, C, D) and converting it into the corresponding signals required to drive a 7-segment LED display. The internal decoding logic maps each BCD input combination to the appropriate segment outputs (a, b, c, d, e, f, g). The active-low outputs are then used to control the individual segments of the display.

Detailed Application Field Plans

SN74LS247NG4 finds applications in various fields, including:

1. Digital clocks
2. Counters and timers
3. Instrumentation panels
4. Scoreboards
5. Industrial control systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74LS247NG4 include:

1. CD4511BC - BCD-to-Seven-Segment Latch/Decoder/Driver
2. MM74C48 - BCD-to-Seven-Segment Decoder/Driver
3. DM9368 - BCD-to-Seven-Segment Decoder/Driver

These alternatives can be considered based on specific requirements and availability.

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