CD4556BM

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic IC
• Characteristics: Dual 1-of-4 Decoder/Demultiplexer
• Package: 16-pin DIP (Dual In-line Package)
• Essence: Decodes binary input into one of four outputs
• Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

• Supply Voltage: 3V to 18V
• Input Voltage: 0V to VDD
• Output Voltage: 0V to VDD
• Operating Temperature: -55°C to +125°C
• Propagation Delay Time: 60ns (typical)
• Output Current: ±25mA

Pin Configuration

The CD4556BM has a total of 16 pins. The pin configuration is as follows:

__ __ A1 |1 \__/ 16| VDD A2 |2 15| Y0 A3 |3 14| Y1 A4 |4 CD 13| Y2 B1 |5 4556 12| Y3 B2 |6 BM 11| GND B3 |7 10| E B4 |8 9| F ----------

Functional Features

• Dual 1-of-4 decoder/demultiplexer functionality
• Converts binary input to one of four active-low outputs
• Can be used for address decoding in memory systems
• High noise immunity due to Schmitt trigger inputs
• Wide operating voltage range allows for versatile applications

Advantages and Disadvantages

Advantages

• Compact and easy to integrate into circuit designs
• Low power consumption
• High noise immunity ensures reliable operation
• Wide operating voltage range allows for flexibility in power supply

Disadvantages

• Limited number of output options (only four)
• Propagation delay may affect timing-sensitive applications
• Not suitable for high-speed applications due to slower response time

Working Principles

The CD4556BM is a dual 1-of-4 decoder/demultiplexer IC. It takes binary input signals and decodes them into one of four active-low outputs. The inputs A1-A4 determine the binary code, and the corresponding output Y0-Y3 becomes active-low based on the input combination.

The CD4556BM utilizes Schmitt trigger inputs, which provide high noise immunity by ensuring stable switching even in the presence of noisy signals. This makes it suitable for applications where signal integrity is crucial.

Detailed Application Field Plans

The CD4556BM can be used in various applications, including:

1. Address decoding in memory systems
2. Data routing in digital circuits
3. Signal selection in multiplexers
4. Control logic in microcontrollers
5. Binary-to-decimal conversion in display drivers

Its versatility and compact size make it suitable for a wide range of digital logic applications.

Alternative Models

Here are some alternative models that offer similar functionality:

1. CD4514BM - 1-of-16 decoder/demultiplexer
2. CD4511BM - BCD-to-7-segment decoder/driver
3. CD4543BM - BCD-to-7-segment latch/decoder/driver

These alternatives can be considered based on specific requirements and desired features.

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