74HC238PW

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74HC238PW

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Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 DECODER DEMULTIPLEXER

  • Nhà sản xuấtNexperia

  • Ông. Phần #74HC238PW

  • Bảng dữ liệu 74HC238PW DataSheet

  • Có sẵn18628

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Description

The 74HC238PW is a high-speed CMOS decoder/demultiplexer integrated circuit. It is part of the 74HC series, which is known for its low power consumption and high noise immunity. The 74HC238PW features a 3-to-8 line decoder, meaning it takes a 3-bit binary input and decodes it into one of eight outputs. It has three address inputs (A0, A1, A2), three active-low enable inputs (E1, E2, E3), and eight active-high outputs (Y0 to Y7). Only one output is activated at a time based on the binary input and the state of the enable inputs.
The device operates within a supply voltage range of 2V to 6V and is suitable for a wide range of applications like data routing, memory address decoding, and other digital logic systems. Its compact TSSOP (Thin-Shrink Small Outline Package) makes it suitable for space-constrained applications. The 74HC238PW ensures reliable performance in digital circuits and is widely used in educational projects, hobby electronics, and industrial applications.

Equivalent

The 74HC238PW is a high-speed CMOS 3-to-8 line decoder/demultiplexer. Equivalent products include:
1. SN74HC238N by Texas Instruments
2. MC74HC238 by ON Semiconductor
3. CD74HC238 by Texas Instruments
4. HEF4028BP by Nexperia (similar functionality)
5. MM74HC238 by Fairchild Semiconductor
Ensure compatibility by checking datasheets for pin configuration and electrical characteristics.

Features

The 74HC238PW is a high-speed CMOS 3-to-8 line decoder/demultiplexer. Key features include:
1. High-Speed Operation: It operates with a typical propagation delay of 14 ns at Vcc = 5V.
2. Wide Supply Voltage Range: It functions over a voltage range of 2V to 6V, making it versatile for various applications.
3. Low Power Consumption: Features low power dissipation typical of CMOS logic ICs.
4. High Noise Immunity: Provides strong protection against unwanted signals with typical noise margins.
5. Multiple Package Options: Available in TSSOP and SO packages for diverse mounting needs.
6. Three Enable Inputs: Facilitates easy cascading for larger decoders.
7. Balanced Propagation Delays: Ensures consistent output timing.
8. Input Levels: Compatible with both TTL and CMOS signal levels.
9. Wide Operating Temperature Range: Suitable for industrial environments with a range from -40°C to +125°C.
10. RoHS Compliant: Environmentally friendly design.
These features make the 74HC238PW ideal for applications requiring address decoding or data routing.

Pinout

The 74HC238PW is a high-speed CMOS 3-to-8 line decoder/demultiplexer. It has a total of 16 pins. The functions of these pins are as follows:
- Pins 1-3 (A0, A1, A2): These are the address inputs. They determine which one of the eight outputs (Y0 to Y7) will be active.
- Pins 4-6 (E1, E2, E3): These are the enable inputs. The decoder is active when E1 is high, and both E2 and E3 are low.
- Pins 7, 9-11, 13-15 (Y0 to Y7): These are the output pins. One of these pins will be low depending on the binary value at the address inputs when the device is enabled.
- Pin 8 (GND): Ground pin, connected to the 0V supply.
- Pin 16 (Vcc): Positive supply voltage pin, connected to the power source.
The 74HC238PW is used in applications where simple data routing and signal demultiplexing are required, such as memory address decoding and data distribution systems.

Manufacturer

The manufacturer of the 74HC238PW is Nexperia. Nexperia is a global semiconductor company known for its focus on producing discrete components, logic devices, and MOSFETs. It was originally part of NXP Semiconductors and became an independent entity in 2017. Nexperia specializes in high-volume production and supply of essential semiconductors, catering to a variety of markets including automotive, mobile, consumer electronics, and industrial applications. The company is recognized for its commitment to efficiency and sustainability in manufacturing processes.

Application

The 74HC238PW is a high-speed CMOS 3-to-8 line decoder/demultiplexer. Its primary application areas include:
1. Data Demultiplexing: Distributing data from a single input line to multiple output lines.
2. Address Decoding: Used in memory address decoding to select specific memory locations.
3. Signal Routing: Directing signals in communication systems and complex circuits.
4. Control Logic: Implementing control logic systems in microprocessors and microcontrollers.
5. LED Display Control: Driving multiple LED segments in display applications.
6. Peripheral Selection: Selecting and enabling peripherals in embedded systems.
These applications leverage the device's ability to handle multiple outputs and its compatibility with high-speed digital systems.

Package

The 74HC238PW is a 3-to-8 line decoder/demultiplexer integrated circuit in the TSSOP (Thin Shrink Small Outline Package) type. The TSSOP package is a smaller form of the traditional SOP, ideal for applications requiring space efficiency.

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