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SN74HC47N

Specifications:

  • Type: BCD to 7-Segment Decoder/Driver
  • Supply Voltage (VDD): 4.5V to 5.5V
  • Input Voltage Range: 0V to VDD
  • Maximum Output Current: 20 mA per segment
  • Operating Temperature: -40°C to +125°C
  • Power Consumption: Low, around 1 µA (static)

Special Features:

  • BCD Input: Accepts binary-coded decimal inputs (0000 to 1001).
  • Direct Control: Drives common anode or common cathode seven-segment displays.
  • Latch Functionality: Has a latch for holding the display state, which is useful for dynamic applications.
  • Enable/Disable Function: Allows for easy control over the display output.

Original price was: ৳ 70.00.Current price is: ৳ 40.00.

Specification

Overview

Wiring Connections:

The SN74HC47N has 16 pins with the following connections:

  • Pin 1: a (Segment output)
  • Pin 2: b (Segment output)
  • Pin 3: c (Segment output)
  • Pin 4: d (Segment output)
  • Pin 5: e (Segment output)
  • Pin 6: f (Segment output)
  • Pin 7: g (Segment output)
  • Pin 8: Latch Enable (LE)
  • Pin 9: Blanking (BL)
  • Pin 10: Ground (GND)
  • Pin 11: D0 (Least significant bit input)
  • Pin 12: D1
  • Pin 13: D2
  • Pin 14: D3 (Most significant bit input)
  • Pin 15: Supply Voltage (VDD)
  • Pin 16: Decimal Point Control (DP)

Power:

  • Supply Voltage: Operates within a range of 4.5V to 5.5V.
  • Current Consumption: Very low static power consumption, making it energy-efficient.

Input and Output:

  • Input: Accepts BCD inputs (D0 to D3) for digits 0 to 9.
  • Outputs: Seven outputs (a to g) to control the segments of a display, plus an optional decimal point.

Physical Characteristics:

  • Package Type: DIP-16 (Dual In-line Package with 16 pins).
  • Dimensions: Standard DIP-16 size (approximately 19.3mm x 7.6mm).
  • Mounting Style: Designed for through-hole mounting on PCBs.

Technical Specifications:

  • Maximum Frequency: Can handle input frequencies up to 10 MHz.
  • Propagation Delay:  around 25 ns.

Additional Features:

  • LED Control: The driver can control the brightness of the display segments directly.
  • Control Pins: Includes control pins for blanking the display or enabling/disabling the output.

How to Use:

  1. Connecting to a Seven-Segment Display:
    • Connect the outputs (a to g) to the corresponding segments of the seven-segment display.
    • Ensure the display type (common anode or cathode) matches the output configuration.
  2. Setting Up the BCD Inputs:
    • Provide BCD inputs (D0 to D3) to represent the desired digit (0-9).
    • Use the latch enable pin (LE) to hold the current display state.
  3. General Applications:
    • Digital Displays: Ideal for applications needing numerical output on seven-segment displays.
    • Counters: Can be used in combination with counters for displaying counted values.
    • Frequency Division: Suitable for visual representation of frequency division in digital circuits.

Applications:

  • Consumer Electronics: Used in digital clocks, calculators, and appliances needing numerical displays.
  • Industrial Equipment: Often found in machinery for displaying operational parameters.
  • Educational Projects: A popular component in educational kits for learning about digital logic and displays.

The SN74HC47N is an essential component for converting BCD inputs into display outputs. Its ability to drive seven-segment displays directly, combined with its low power consumption and ease of use, makes it a valuable part of many digital applications. Whether you’re building a simple counter or a more complex display system, the SN74HC47N offers reliability and efficiency.

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