CD40147BPWE4

Product Overview

Category

CD40147BPWE4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic circuits for data encoding and decoding purposes.

Characteristics

• CD40147BPWE4 is a 10-line to 4-line priority encoder.
• It operates on a supply voltage range of 3V to 18V.
• The device has a maximum input current of 1µA at 18V.
• It offers low power consumption and high noise immunity.
• CD40147BPWE4 is designed to be compatible with various logic families.

Package

The CD40147BPWE4 is available in a small outline package (SOIC) with a wide body (W) and exposed pad (E4). This package provides improved thermal dissipation and ease of handling during assembly.

Essence

The essence of CD40147BPWE4 lies in its ability to encode 10 input lines into a 4-bit binary output, based on the priority of the input lines.

Packaging/Quantity

CD40147BPWE4 is typically sold in reels or tubes. Each reel contains 2500 units of the IC.

Specifications

• Supply Voltage Range: 3V to 18V
• Input Current: 1µA (max) at 18V
• Output Current: ±5mA
• Operating Temperature Range: -55°C to +125°C
• Logic Family Compatibility: TTL, CMOS

Detailed Pin Configuration

The CD40147BPWE4 has a total of 16 pins, which are assigned specific functions as follows:

1. A0: Input line 0
2. A1: Input line 1
3. A2: Input line 2
4. A3: Input line 3
5. A4: Input line 4
6. A5: Input line 5
7. A6: Input line 6
8. A7: Input line 7
9. A8: Input line 8
10. A9: Input line 9
11. GND: Ground
12. EO: Enable output
13. VCC: Supply voltage
14. Y0: Output bit 0
15. Y1: Output bit 1
16. Y2: Output bit 2
17. Y3: Output bit 3

Functional Features

• CD40147BPWE4 prioritizes the input lines based on their numerical value, with the highest priority given to the lowest-numbered active input.
• It encodes the active input into a 4-bit binary code on the output pins.
• The enable output (EO) pin allows for cascading multiple CD40147BPWE4 ICs to encode larger numbers of input lines.

Advantages and Disadvantages

Advantages

• High noise immunity ensures reliable operation in noisy environments.
• Wide supply voltage range allows for compatibility with various power sources.
• Low power consumption makes it suitable for battery-powered applications.
• Compact package design facilitates easy integration into electronic circuits.

Disadvantages

• Limited number of input lines may restrict its use in complex encoding applications.
• Non-inverting outputs may require additional circuitry for certain applications.

Working Principles

CD40147BPWE4 operates on the principle of priority encoding. It assigns priority to the active input lines based on their numerical value. The highest-priority active input is encoded into a 4-bit binary code on the output pins. The enable output (EO) pin enables cascading of multiple ICs to handle larger numbers of input lines.

Detailed Application Field Plans

CD40147BPWE4 finds applications in various fields, including:

1. Data communication systems
2. Address decoding in memory devices
3. Priority-based control systems
4. Industrial automation
5. Robotics

Detailed and Complete Alternative Models

Some alternative models to CD40147BPWE4 include:

1. CD74HC147E: High-speed CMOS 10-to-4 line priority encoder
2. SN74LS148N: TTL 8-line to 3-line priority encoder
3. CD4028BE: CMOS BCD-to-decimal decoder

These alternative models offer similar functionality and can be used as substitutes for CD40147BPWE4 in various applications.

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