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74HC154D

Name: 74HC154D
Rating: 4.7 (12 reviews)

Encoders, Decoders, Multiplexers & Demultiplexers 4-16 LINE DCOD/DMUX

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Mfr。パート #74HC154D
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データシート 74HC154D DataSheet
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概要

Description

The 74HC154D is a high-speed CMOS 4-to-16 line decoder/demultiplexer. It takes 4 input lines and decodes them into one of 16 outputs, effectively selecting one of the 16 outputs based on the binary value of the inputs. The device features active LOW outputs, meaning the selected output goes LOW, while all others remain HIGH.
Key features include a wide supply voltage range (2V to 6V), low power consumption, and fast switching times, making it suitable for various digital applications, including memory address decoding, data routing, and signal demultiplexing. The HC series ensures compatibility with TTL logic levels, enhancing its versatility in mixed-signal environments.
The 74HC154D is commonly used in systems requiring efficient address decoding and can simplify circuit designs by allowing multiple signals to be controlled with fewer lines. It is available in various package types, including DIP and surface-mount configurations, facilitating integration into different circuit designs.

Features

The 74HC154D is a high-speed CMOS 4-to-16 line decoder/demultiplexer. Key features include:
1. Functionality: It decodes a 4-bit binary input into one of 16 outputs, which are active low.
2. Input Range: Supports a wide input voltage range suitable for various logic levels.
3. High Speed: Operates at high speeds, with typical propagation delays being around 4 ns at Vcc = 5V.
4. Low Power Consumption: Consumes low power, making it suitable for battery-operated devices.
5. Wide Supply Voltage: Operates with a supply voltage range of 2V to 6V.
6. Fan-out Capability: Can drive multiple TTL inputs, allowing for expanded applications.
7. Enable Inputs: Features enable inputs to control the output states easily.
8. Applications: Commonly used in memory address decoding, data routing, and multiplexing applications.
This makes the 74HC154D versatile for digital circuit design.

Package

The 74HC154D is packaged in a dual in-line package (DIP) format, specifically a 16-pin DIP. It is commonly used in digital circuits for decoding applications.

Pinout

The 74HC154D is a dual 2-to-4 line decoder/demultiplexer with a total of 16 pins. It features two separate decoders, each capable of decoding 2 input bits into 4 unique outputs.
Pin Count and Functions:
- Pins 1-4 (A0, A1, G1, G2A, G2B): Input pins for address lines and enable signals.
- Pins 5-8 (Y0, Y1, Y2, Y3): Output pins indicating the selected line based on the input combination (active low).
- Pins 9-16 (GND, VCC, Y0, Y1, Y2, Y3, G1, G2A, G2B): Power supply (GND and VCC), additional outputs, and enable inputs.
The device is used in applications requiring address decoding and data routing, providing efficient control of multiple outputs based on binary input combinations.

Manufacturer

The 74HC154D is a product manufactured by Texas Instruments (TI), a prominent American technology company. Founded in 1930, Texas Instruments specializes in designing and producing semiconductors and various integrated circuits, including digital logic devices, microcontrollers, and analog technologies. The company is well-known for its innovation in the fields of electronics and embedded systems, serving a wide range of industries, including automotive, industrial, and consumer electronics. TI's products are widely used in applications requiring high-performance data processing and control.

Application

The 74HC154D is a 4-to-16 line decoder/demultiplexer used in various applications such as address decoding in memory systems, data routing in digital circuits, and control signal generation. It effectively expands address space in microcontroller-based systems, enables multiple device selections, and facilitates the implementation of complex logic functions. Additionally, it can be utilized in multiplexing applications, interfacing with peripheral devices, and in digital signal processing.

Equivalent

The 74HC154D is a 4-to-16 line decoder/demultiplexer. Equivalent products include:
1. 74HCT154 (TTL compatible)
2. 74LS154 (Low-power Schottky)
3. CD4514 (CMOS version)
4. MC14529 (also a CMOS decoder)
These products may vary in specifications such as supply voltage and speed, so refer to datasheets for detailed comparisons.