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Part No HEF4555BT
Manufacturer NXP
Catalog Electronic Surplus
Description Dual 1-of-4 decoder/demultiplexer
Rohs State Need to verify

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Pricing & Ordering $0.3841 Historical reference price : is the price that a customer announces that it is willing to pay for this component in the previous period, only for reference.
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Availability: 30,000 pieces
MOQ: 90 pcs
Order Increment : 1 pcs
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Products specifications

RoHS State Request Verification
Manufacturer NXP
Win Source Part Number 1179943-HEF4555BT
Manufacturer Homepage
Is this a common-used part? Yes
Popularity High
Fake Threat In the Open Market 64 pct.
Supply and Demand Status Balance


The NXP HEF4555BT is a versatile integrated circuit that functions as a dual binary to 1-of-4 decoder or demultiplexer. This high-quality component is designed to provide reliable performance in a wide range of digital applications. The HEF4555BT is part of NXP's HEF4000 family, which is renowned for its robustness and compatibility with various logic families.

Key Features

  • Logic Family: The HEF4555BT belongs to the HEF4000 family, which uses silicon gate CMOS technology to ensure high speed and low power consumption.
  • Operating Voltage: It operates within a voltage range of 3V to 15V, making it suitable for various applications and compatible with TTL levels.
  • Dual Functionality: This device can function as either a dual 2-to-4 line decoder or a dual 1-of-4 line demultiplexer, providing flexibility in its application.
  • Output Capability: The IC has standard outputs capable of driving up to 10 LSTTL loads, which is ideal for interfacing with other logic families.
  • Package Type: The HEF4555BT is available in a 16-pin SO package, which is suitable for surface-mounted technology (SMT).


The HEF4555BT is commonly used in a variety of digital systems where decoding or demultiplexing is required. Its applications include:

  • Address decoding in memory selection circuits
  • Data routing and signal distribution
  • Control signal generation for multiple output lines
  • Function selection in microprocessor systems

Technical Specifications

The HEF4555BT offers a range of technical specifications that make it an excellent choice for designers looking for a reliable decoder/demultiplexer. Some of its specifications include:

  • Supply Voltage Range (VCC): 3V to 15V
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: Varies with operating voltage and temperature
  • Package: 16-pin plastic SO

With its combination of versatility, reliability, and performance, the NXP HEF4555BT is an excellent choice for designers in need of a dual binary to 1-of-4 decoder/demultiplexer for their digital applications.

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