SN74HCT244NSR

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SN74HCT244NSR

IC BUFFER NON-INVERT 5.5V 20SO

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Спецификации

Package Tape & Reel (TR),Cut Tape (CT)
Series 74HCT
ProductStatus Active
LogicType Buffer, Non-Inverting
NumberofElements 2
NumberofBitsperElement 4
OutputType 3-State
Current-OutputHighLow 6mA, 6mA
Voltage-Supply 4.5V ~ 5.5V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 20-SOIC (0.209, 5.30mm Width)

Обзор

Description

The SN74HCT244NSR is an octal buffer/driver with 3-state outputs, designed to interface between TTL and CMOS devices. It features eight independent buffers/driver circuits, allowing it to accept low-level input signals and provide high-level output signals, thus enhancing signal integrity in digital systems. The device operates with a voltage range of 4.5V to 5.5V, making it compatible with standard TTL logic levels.
Key features include high-speed operation, low power consumption, and high output drive capability, with each output capable of driving up to 15 loads. The SN74HCT244 is specifically designed to improve bus capacity in data communication and can help isolate signal lines to prevent loading effects. The 3-state outputs enable multiple devices to share the same output line, making it ideal for applications requiring data multiplexing.
Common applications include logic level shifting, data buffering, and fan-out applications in microcontroller interfacing. Available in an SOIC-20 package, the SN74HCT244NSR is widely used in various electronic systems requiring reliable digital signal management.

Features

The SN74HCT244NSR is a high-speed hex buffer/driver designed for TTL-compatible input/output applications. Key features include:
1. Hex Buffer/Driver: Contains six independent buffers/drivers, each with a standard TTL input and output.
2. Voltage Levels: Operates within a 4.5V to 5.5V supply voltage range, compatible with TTL and CMOS logic levels.
3. High-Speed Operation: Offers fast transition times, with propagation delays typically around 8 ns at 5V.
4. Low Power Consumption: Features low static and dynamic power consumption, suitable for battery-operated devices.
5. Tri-State Outputs: Each output can be enabled or disabled, allowing for multiplexing and bus-oriented applications.
6. Wide Temperature Range: Suitable for various applications, operating from -40°C to 125°C.
7. DIP and SOIC Packages: Available in multiple package types for diverse design needs.
These features make the SN74HCT244NSR ideal for applications requiring signal buffering, driving capabilities, and high-speed transistor-transistor logic (TTL) compatibility.

Package

The SN74HCT244NSR is packaged in a TSSOP-20 (Thin Shrink Small Outline Package) format.

Pinout

The SN74HCT244NSR is an octal buffer/driver with 3-state outputs, featuring a total of 20 pins. It is designed to interface with TTL-compatible inputs and outputs.
Pin Count: 20 pins
Functions:
- The device has 8 input pins (A1 to A8) and 8 corresponding output pins (Y1 to Y8).
- It includes 2 control pins: an output enable (OE) pin, which controls the activation of the output drivers, and a separate enable pin for each buffer.
- When the OE pin is low, the outputs are enabled; when it is high, the outputs are in a high-impedance state.
- It is used for buffering and driving signals, providing increased fan-out and improved signal integrity in digital circuits.
The SN74HCT244NSR operates over a wide voltage range and is suitable for various applications requiring signal buffering.

Manufacturer

The SN74HCT244NSR is manufactured by Texas Instruments (TI), a leading company in the semiconductor industry. Texas Instruments designs and produces a wide range of analog and digital integrated circuits, processors, and microcontrollers. Founded in 1930 and headquartered in Dallas, Texas, TI serves various markets, including industrial, automotive, communications, and consumer electronics. The SN74HCT244 is a hex buffer/driver that offers high-speed logic level conversion and is commonly used in digital circuits for signal buffering and driving purposes. Texas Instruments is known for its innovation and commitment to developing reliable electronic solutions.

Application

The SN74HCT244NSR is a high-speed buffer/driver with a tri-state output, commonly used in digital circuits for signal buffering, isolation, and level shifting. Its applications include data processing, memory interfacing, communication systems, and driving capacitive loads in microcontroller and FPGA designs. Additionally, it serves in bus-oriented systems to manage multiple signal lines without interference.

Equivalent

The SN74HCT244NSR is a hex buffer/driver with 3-state outputs. Equivalent products include:
1. 74HC244 - Standard CMOS version.
2. 74HCT245 - Octal buffer/driver if more channels are needed.
3. SN74LS244 - Low-power Schottky equivalent.
4. SN74AHCT244 - Advanced high-speed CMOS variant.
5. 74AC244 - Advanced CMOS variant for faster operation.
Always verify pin compatibility and logic level requirements for specific applications.

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