74HC244D

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IC BUFFER NON-INVERT 6V 20SOIC

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Especificações

Atributo Valor
Package Tape & Reel (TR),Cut Tape (CT)
Series 74HC
ProductStatus Active
LogicType Buffer, Non-Inverting
NumberofElements 2
NumberofBitsperElement 4
OutputType 3-State
Current-OutputHighLow 7.8mA, 7.8mA
Voltage-Supply 2V ~ 6V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 20-SOIC (0.295, 7.50mm Width)

Visão Geral

Description

The 74HC244D is a high-speed CMOS octal buffer/line driver with 3-state outputs, part of the 74HC series ICs. It is designed for use in high-speed memory and register applications, where it provides buffering and increases the drive capability of standard logic signals. The device features two sets of four buffers, with each set controlled by separate output enable (OE) pins. When the OE pin is low, the corresponding outputs are enabled; when high, the outputs are in a high-impedance state, allowing for easy multiplexing of signals.
Key features of the 74HC244D include high noise immunity, low power consumption, and the ability to drive up to 15 LSTTL loads. It operates over a wide voltage range from 2V to 6V and is typically used in applications such as bus interfacing, address buffering, and data distribution. The device is packaged in a 20-pin surface-mount small-outline integrated circuit (SOIC) format. Its high-speed performance and ease of use make it a versatile choice for digital design applications.

Equivalent

The 74HC244D is a high-speed CMOS octal buffer/line driver with 3-state outputs. Equivalent products include:
1. 74HCT244
2. 74LS244
3. SN74HC244N
4. CD74HC244E
These ICs perform similar functions and can often be used interchangeably, but always check datasheets for specific electrical characteristics and pin configurations to ensure compatibility.

Features

The 74HC244D is a high-speed CMOS octal buffer/line driver featuring non-inverting 3-state outputs. Key features include:
1. High-Speed Performance: It operates efficiently with a fast switching capability.
2. CMOS Technology: Low power consumption and high noise immunity.
3. 3-State Outputs: Allows multiple devices to share the same bus line without interference.
4. Octal Configuration: Provides eight buffers/line drivers with individual input and output.
5. Wide Operating Voltage Range: Typically from 2V to 6V, making it versatile for various applications.
6. Direct Interface: Compatible with both TTL and CMOS logic levels.
7. Enable Control: Two output enable inputs for selective operation.
8. High Output Drive Capability: Suitable for driving loads requiring significant current.
9. Temperature Range: Operates effectively over a wide temperature range, ensuring reliability in diverse environments.
10. Compact Package: Available in surface-mount and through-hole options for design flexibility.
These features make the 74HC244D ideal for use in data bussing and signal buffering in digital systems.

Pinout

The 74HC244D is a high-speed CMOS octal buffer/line driver with 3-state outputs, commonly used to improve signal integrity and manage bus communication. It has a 20-pin configuration. Here's a brief overview of its pin functions:
1. VCC (Pin 20): Power supply pin.
2. GND (Pin 10): Ground pin.
3. A0-A7 (Pins 2, 4, 6, 8, 11, 13, 15, 17): Data inputs for the buffer/line driver.
4. Y0-Y7 (Pins 3, 5, 7, 9, 12, 14, 16, 18): Corresponding data outputs.
5. OE1 (Pin 1): Output Enable for the first four buffers (A0-A3). When low, these outputs are enabled; when high, they are in high-impedance state.
6. OE2 (Pin 19): Output Enable for the second four buffers (A4-A7). It functions similarly to OE1.
The device is typically used for driving data buses or interfacing between subsystems within a digital system, and the 3-state outputs allow multiple outputs to connect to a common bus line without interference.

Manufacturer

The manufacturer of the 74HC244D is NXP Semiconductors. NXP is a global semiconductor company that provides high-performance mixed-signal and standard product solutions. Headquartered in Eindhoven, Netherlands, the company focuses on various sectors including automotive, communication infrastructure, industrial, Internet of Things (IoT), mobile, and smart devices. NXP is known for its innovations in automotive electronics, secure identification, and secure connected devices.

Application

The 74HC244D is a high-speed CMOS octal buffer/line driver with 3-state outputs. It is widely used in digital circuits for applications requiring signal buffering and isolation. Common application areas include:
1. Bus Driving: Used in microprocessor and microcontroller systems to drive data/address buses.
2. Signal Amplification: Amplifies weak signals for improved transmission across long distances or through signal-processing stages.
3. Level Shifting: Provides voltage level translation between different logic levels, e.g., interfacing 3.3V and 5V systems.
4. Data Distribution: Facilitates the distribution of data signals to multiple destinations without signal degradation.
5. Isolation: Provides isolation between different sections of a circuit to prevent interference.
These features make it suitable for computers, communication equipment, and consumer electronics.

Package

The 74HC244D is typically available in a small outline integrated circuit (SOIC) package. This package type is suitable for surface-mount technology and is commonly used for its compact footprint in electronic circuit designs.

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