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SN74HCT244DW
+BOMIC BUFF NON-INVERT 5.5V 20-SOIC
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ManufacturerTexas Instruments
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Mfr. Part #SN74HCT244DW
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In Stock3354
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Specifications
| Attribute | Value |
| Series | 74HCT |
| Part Status | Obsolete |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | 3-State |
| Current - Output High, Low | 6mA, 6mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC |
| Base Product Number | 74HCT244 |
Overview
Description
The SN74HCT244DW is a high-speed hex buffer/driver with three-state outputs, designed for use in digital logic applications. It operates with a supply voltage range of 4.5V to 5.5V and is compatible with TTL (Transistor-Transistor Logic) levels, making it ideal for interfacing between different logic families.
This device features six independent buffers that can drive loads up to 15 mA per output, making it suitable for driving LEDs, relays, or other components. The three-state output allows for multiple devices to share a single bus, facilitating effective communication in complex circuits.
Its TTL compatibility and low propagation delay (typically around 6 ns at 5V) make it suitable for high-speed applications. The SN74HCT244DW is available in a 20-pin TSSOP package, which saves board space and enhances integration in compact designs. This device is widely used in microcontroller interfacing, signal buffering, and logic level shifting applications.
This device features six independent buffers that can drive loads up to 15 mA per output, making it suitable for driving LEDs, relays, or other components. The three-state output allows for multiple devices to share a single bus, facilitating effective communication in complex circuits.
Its TTL compatibility and low propagation delay (typically around 6 ns at 5V) make it suitable for high-speed applications. The SN74HCT244DW is available in a 20-pin TSSOP package, which saves board space and enhances integration in compact designs. This device is widely used in microcontroller interfacing, signal buffering, and logic level shifting applications.
Equivalent
The SN74HCT244DW is a high-speed CMOS octal buffer/driver with tri-state outputs. Equivalent products include:
1. 74HC244 (high-speed CMOS)
2. 74HCT240 (octal buffer/driver)
3. MC74HCT244A (Motorola)
4. 74LS244 (low-power Schottky TTL)
Ensure compatibility in terms of voltage levels and propagation delays before substituting. Always refer to the specific datasheets for detailed comparisons.
1. 74HC244 (high-speed CMOS)
2. 74HCT240 (octal buffer/driver)
3. MC74HCT244A (Motorola)
4. 74LS244 (low-power Schottky TTL)
Ensure compatibility in terms of voltage levels and propagation delays before substituting. Always refer to the specific datasheets for detailed comparisons.
Features
The SN74HCT244DW is an octal buffer/driver with three-state outputs, designed for high-speed data transmission in digital circuitry. Key features include:
1. Eight Independent Buffers: It has eight separate input/output channels, allowing simultaneous data handling.
2. TTL Compatibility: Operates with TTL (Transistor-Transistor Logic) input levels, ensuring compatibility with various logic families.
3. High-Speed Operation: Typical propagation delay of 6 ns at 5V, enabling fast data transfer rates.
4. Three-State Outputs: Outputs can be enabled or disabled, allowing multiple devices to share the same bus without conflict.
5. Wide Supply Voltage Range: Operates from 4.5V to 5.5V, making it suitable for various applications.
6. Low Power Consumption: Designed for efficient operation, minimizing power usage.
7. DIP and SOIC Packaging: Available in multiple package options for versatile mounting solutions.
This device is ideal for applications requiring data buffering and signal amplification in microprocessor and microcontroller environments.
1. Eight Independent Buffers: It has eight separate input/output channels, allowing simultaneous data handling.
2. TTL Compatibility: Operates with TTL (Transistor-Transistor Logic) input levels, ensuring compatibility with various logic families.
3. High-Speed Operation: Typical propagation delay of 6 ns at 5V, enabling fast data transfer rates.
4. Three-State Outputs: Outputs can be enabled or disabled, allowing multiple devices to share the same bus without conflict.
5. Wide Supply Voltage Range: Operates from 4.5V to 5.5V, making it suitable for various applications.
6. Low Power Consumption: Designed for efficient operation, minimizing power usage.
7. DIP and SOIC Packaging: Available in multiple package options for versatile mounting solutions.
This device is ideal for applications requiring data buffering and signal amplification in microprocessor and microcontroller environments.
Pinout
The SN74HCT244DW is an octal buffer/driver with 3-state outputs. It has a total of 20 pins.
### Pin Count and Functions:
1. Inputs (A1 - A8): Pins 1-8 (Data inputs)
2. Outputs (Y1 - Y8): Pins 19-12 (Data outputs)
3. Enable (G1, G2): Pins 10 and 11 (Active low enables for the outputs)
4. VCC: Pin 20 (Power supply; typically +5V)
5. GND: Pin 10 (Ground)
The device buffers and drives data signals, providing high-speed digital circuit performance while maintaining low power consumption. The outputs can be placed in a high-impedance state when disabled, allowing for easy connection to multiple drivers or receivers on a bus. It is ideal for applications in digital systems requiring signal buffering or driving capabilities.
### Pin Count and Functions:
1. Inputs (A1 - A8): Pins 1-8 (Data inputs)
2. Outputs (Y1 - Y8): Pins 19-12 (Data outputs)
3. Enable (G1, G2): Pins 10 and 11 (Active low enables for the outputs)
4. VCC: Pin 20 (Power supply; typically +5V)
5. GND: Pin 10 (Ground)
The device buffers and drives data signals, providing high-speed digital circuit performance while maintaining low power consumption. The outputs can be placed in a high-impedance state when disabled, allowing for easy connection to multiple drivers or receivers on a bus. It is ideal for applications in digital systems requiring signal buffering or driving capabilities.
Manufacturer
The SN74HCT244DW is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including integrated circuits (ICs), microcontrollers, and processors, primarily for the analog and digital electronics markets. The company is well-known for its innovations in embedded processing and analog technology, serving various sectors such as automotive, industrial, communications, and consumer electronics. Founded in 1930 and headquartered in Dallas, Texas, TI is recognized for its commitment to quality, reliability, and performance in its product offerings.
Application
The SN74HCT244DW is an octal buffer/driver with tri-state outputs, commonly used in digital circuits. Its application areas include:
1. Data Bus Isolation: It acts as a buffer to isolate bus lines and reduce load on data sources.
2. Signal Conditioning: It strengthens signals for longer transmission distances.
3. Level Shifting: It converts signals between different voltage levels in mixed-voltage systems.
4. LED Drivers: It can drive multiple LEDs with high current capability.
5. Interfacing: Used for interfacing with microcontrollers or FPGAs in various digital applications.
Its high-speed performance and reliable operation make it suitable for both consumer electronics and industrial applications.
1. Data Bus Isolation: It acts as a buffer to isolate bus lines and reduce load on data sources.
2. Signal Conditioning: It strengthens signals for longer transmission distances.
3. Level Shifting: It converts signals between different voltage levels in mixed-voltage systems.
4. LED Drivers: It can drive multiple LEDs with high current capability.
5. Interfacing: Used for interfacing with microcontrollers or FPGAs in various digital applications.
Its high-speed performance and reliable operation make it suitable for both consumer electronics and industrial applications.
Package
The SN74HCT244DW is packaged in a TSSOP (Thin Shrink Small Outline Package) with 20 pins. This surface-mount package type is designed for high-density applications and offers a compact footprint suitable for various electronic circuits.
