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SN74ACT244DW

Name: SN74ACT244DW
Rating: 4.7 (12 reviews)

IC BUF NON-INVERT 5.5V 20SOIC

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Mfr。パート #SN74ACT244DW
パッケージ SOIC-20
データシート
在庫中2836

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仕様

Package	Bulk,Tube
Series	74ACT
ProductStatus	Active
LogicType	Buffer, Non-Inverting
NumberofElements	2
NumberofBitsperElement	4
OutputType	3-State
Current-OutputHighLow	24mA, 24mA
Voltage-Supply	4.5V ~ 5.5V
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	20-SOIC (0.295, 7.50mm Width)

概要

Description

The SN74ACT244DW is an octal buffer/driver designed for high-speed digital applications. It features eight independent buffer/driver channels that provide voltage level shifting and signal amplification. Operating with a wide supply voltage range of 4.5V to 5.5V, it is compatible with TTL and CMOS logic levels.
This integrated circuit is particularly beneficial for driving capacitive loads and enhancing signal integrity over long distances. The device has a tri-state output, allowing multiple outputs to be connected to a single bus without signal contention. Its fast propagation delay and low output skew make it suitable for high-frequency applications.
The SN74ACT244DW is packaged in a surface-mount 20-pin TSSOP, which minimizes board space and facilitates efficient thermal management. It is commonly used in data buffering, signal routing, and interfacing applications in various electronic systems, including computers, communication devices, and consumer electronics.

Features

The SN74ACT244DW is an octal buffer/driver designed for high-speed applications. Key features include:
1. Logic Levels: Compatible with both TTL and CMOS logic levels.
2. High-Speed Operation: Typical propagation delay of 7 ns (max at 25°C).
3. Output Drive: Capable of driving up to 64 mA on outputs, suitable for driving heavy loads.
4. Tri-State Outputs: Each output can be enabled or disabled, allowing for bus-oriented applications.
5. Wide Supply Voltage: Operates from 4.5V to 5.5V, ensuring flexibility in design.
6. Low Power Consumption: Designed to consume minimal power during operation.
7. Temperature Range: Rated for operation from -40°C to 125°C.
8. Pin Configuration: Available in a 20-pin TSSOP package for compact designs.
These features make the SN74ACT244DW ideal for applications requiring signal buffering and driving capabilities, such as in data communication and digital interfacing.

Package

The SN74ACT244DW is packaged in a TSSOP (Thin Shrink Small Outline Package) with 20 pins.

Pinout

The SN74ACT244DW is an octal buffer/driver with 3-state outputs, which operates with a high-speed CMOS technology. It has a total of 20 pins.
Pin Count and Function:
- Pins 1-8: These are the data input pins (A1 to A8).
- Pins 9-16: These are the corresponding output pins (Y1 to Y8).
- Pin 19 (GND): Ground connection.
- Pin 20 (VCC): Power supply connection.
- Pin 17 (OE): Output enable control pin; active low. When OE is low, the outputs are enabled, and when high, they are in a high-impedance state.
- Pin 18 (DIR): Direction control pin; it determines the data flow direction.
The device operates with a supply voltage range of 4.5V to 5.5V and offers improved speed and drive capability compared to traditional TTL buffers.

Manufacturer

The SN74ACT244DW is manufactured by Texas Instruments (TI), a major American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits (ICs) that are used in a wide array of electronic devices. The company specializes in analog and embedded processing technologies and serves diverse markets, including automotive, industrial, communications, and consumer electronics. TI is recognized for its innovation in signal processing and its extensive portfolio of products, making it a key player in the semiconductor industry.

Application

The SN74ACT244DW is an octal bus driver with 3-state outputs, commonly used in digital circuits for data buffering, signal amplification, and level shifting. It is ideal for applications in computer systems, communication interfaces, and memory devices, where it facilitates the connection between different data buses and enhances signal integrity. The device is also used in microcontroller and microprocessor interfacing, as well as in various peripheral device connections.

Equivalent

Equivalent products to the SN74ACT244DW include the SN74AHC244, SN74HCT244, 74LVC244, and 74AC244. These chips are also octal buffers/drivers with similar functionality, but may differ in voltage levels, speed, or specific logic families. Always check the datasheets for compatibility regarding electrical characteristics and performance requirements.