74HC244D

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74HC244D

IC BUFFER NON-INVERT 6V 20SOIC

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사양

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)

개요

Description

The 74HC244D is an octal buffer/driver with tri-state outputs, designed to enhance data transmission in digital circuits. It belongs to the 74HC (High-Speed CMOS) family, offering high-speed operation while maintaining low power consumption. This IC features eight independent buffer/driver channels, allowing it to accept inputs from either TTL or CMOS logic levels and drive large capacitive loads.
The tri-state outputs enable the device to control data flow, effectively isolating the outputs when not in use, which is crucial for bus-oriented applications. The 74HC244D operates with a supply voltage range of 2V to 6V and can function in various logic levels, making it versatile for different circuit designs.
Key features include high noise immunity, low output drive impedance, and a fast propagation delay, making it suitable for applications in data bus management, signal buffering, and line driving. The IC is available in DIP, SOIC, and other package types, providing flexibility for various PCB designs. Overall, the 74HC244D is a reliable choice for buffering and signal management in digital systems.

Features

The 74HC244D is an octal buffer/driver with tri-state outputs, designed for high-speed operation. Key features include:
1. Octal Configuration: Contains eight independent buffers/drivers.
2. Tri-State Outputs: Outputs can be enabled or disabled to prevent conflicts on shared data buses.
3. High-Speed Operation: Operates at a maximum frequency of up to 25 MHz, suitable for fast digital applications.
4. Wide Voltage Range: Compatible with supply voltages from 2V to 6V, allowing flexibility in various systems.
5. High Drive Current: Capable of sourcing or sinking up to 35mA, making it suitable for driving high-capacitance loads.
6. Low Power Consumption: Offers low static power consumption, enhancing energy efficiency.
7. Schmitt Trigger Inputs: Provides improved noise immunity and defines clean switching thresholds.
8. Standard Logic Levels: Complies with TTL (Transistor-Transistor Logic) levels, ensuring compatibility with other devices.
These features make the 74HC244D versatile for applications such as data buffering, signal isolation, and driving LEDs or other components in digital circuits.

Package

The 74HC244D is an Octal Buffer/Driver with 3-state outputs. It comes in a DIP (Dual In-line Package) form factor, specifically in a 20-pin configuration.

Pinout

The 74HC244D is an octal buffer/driver with 3-state outputs, consisting of 20 pins. Its primary function is to drive loads with high current capability while providing signal buffering to increase signal integrity. The device features two sections of four buffers each, with inputs labeled A1 to A4 and B1 to B4, and corresponding outputs Y1 to Y4 and Z1 to Z4.
Key pin functions include:
- Inputs (A1-A4, B1-B4): Accept data signals.
- Outputs (Y1-Y4, Z1-Z4): Provide buffered output signals.
- OE (Output Enable): Activates the outputs; when low, the outputs are enabled.
- GND: Ground connection.
- VCC: Power supply connection (typically +2V to +6V).
The 74HC244D is commonly used in digital circuits for signal buffering and driving large capacitive loads.

Manufacturer

The 74HC244D is a product manufactured by Texas Instruments (TI), a leading semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including integrated circuits (ICs), microcontrollers, and analog devices. The company is known for its innovations in technology, particularly in the fields of embedded processing and analog solutions, serving various markets such as automotive, industrial, communications, and consumer electronics. Founded in 1930 and headquartered in Dallas, Texas, TI is recognized for its commitment to quality, performance, and customer support in the electronics industry.

Application

The 74HC244D is an octal buffer/driver with tri-state outputs, commonly used in digital circuits for data transmission, signal buffering, and isolation. Its application areas include bus interfacing, data line driving in microcontroller systems, and signal conditioning in communication systems. It also serves in memory address decoding, interfacing with peripherals, and improving signal integrity in high-speed applications.

Equivalent

Equivalent products to the 74HC244D chip include the 74HCT244, 74LS244, and 74AHC244. These chips are similar octal buffer/driver devices with varying input/output voltage levels and speed characteristics. Always check specific datasheets for compatibility in your application.

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