SN74HCT244N

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SN74HCT244N

IC BUFF NON-INVERT 5.5V 20-PDIP

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  • Mfr.부분 #SN74HCT244N
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사양

Series 74HCT
Part Status Active
Base Product Number 74HCT244
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 Through Hole
Package 20-DIP (0.300", 7.62mm)
Supplier Device Package 20-PDIP
Packaging Bulk, Tube

개요

Description

The SN74HCT244N is an octal buffer/driver with three-state outputs, commonly used in digital circuits to enhance signal integrity and drive capabilities. It belongs to the Texas Instruments HCT (High-speed CMOS with TTL-compatible inputs) family, making it compatible with standard TTL logic.
Key features include:
- Eight Independent Buffers: It has eight buffers that can drive loads and isolate signals, making it suitable for data routing in buses.
- Three-State Outputs: Outputs can be set to high, low, or a high-impedance state, allowing multiple devices to share the same output line without interference.
- Logic Level Compatibility: Operates with a wide voltage range (typically 4.5V to 5.5V) and is compatible with TTL levels, making it versatile for various applications.
- High Noise Immunity: Designed for robust operation in noisy environments, ensuring reliable switching.
Applications include data transmission in communication systems, signal buffering in microcontrollers, and interfacing between different logic families in digital circuits.

Features

The SN74HCT244N is an octal buffer/driver with 3-state outputs, designed for high-speed CMOS logic applications. Key features include:
1. Octal Configuration: Contains eight independent input/output lines, allowing for parallel data handling.
2. Three-State Outputs: Outputs can be enabled or disabled, allowing for bus-oriented applications.
3. High-Speed Performance: Typical propagation delay is around 5ns at 5V, making it suitable for fast digital circuits.
4. Voltage Compatibility: Operates with a supply voltage range of 4.5V to 5.5V, compatible with TTL logic levels.
5. Low Power Consumption: Designed for low power operation, with a maximum ICC of 20 µA.
6. High Drive Capability: Capable of driving a load of 20mA per output, suitable for interfacing with other logic devices.
7. Wide Operating Temperature Range: Functional from -40°C to +125°C, suitable for various environments.
These features make the SN74HCT244N ideal for data buffering and signal driving in digital systems.

Package

The SN74HCT244N is typically available in a dual in-line package (DIP) format. Specifically, it comes in a 20-pin DIP package, which is designed for through-hole mounting on circuit boards.

Pinout

The SN74HCT244N is an octal buffer/driver with 3-state outputs. It features a total of 20 pins.
The pin configuration is as follows:
- Pins 1-8: Outputs (Y1-Y8)
- Pins 9-10: Control inputs (OE1, OE2) for enabling/disabling the outputs
- Pins 11-19: Inputs (A1-A8) which correspond to the outputs
- Pin 20: Ground (GND)
- Pin 19: Supply voltage (VCC)
Functionally, it takes the input signals (A1-A8) and buffers them to the output signals (Y1-Y8). The outputs are enabled or disabled based on the state of the output enable pins (OE1 and OE2). When enabled, the buffer drives the outputs high or low according to the input levels, while in the disabled state (high), the outputs go to a high-impedance state. This makes the SN74HCT244N useful for data routing and signal buffering in digital circuits.

Manufacturer

The SN74HCT244N is manufactured by Texas Instruments (TI), a prominent technology company headquartered in Dallas, Texas. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, including digital logic devices, microcontrollers, analog ICs, and embedded processors. Founded in 1930, TI is known for its innovation in the electronics industry and serves a wide range of sectors, including automotive, industrial, communication, and consumer electronics. The company is recognized for its commitment to quality and performance in electronic components, making it a leading player in the global semiconductor market.

Application

The SN74HCT244N is an octal buffer/driver with 3-state outputs, commonly used in digital circuits for applications such as data routing, signal buffering, and level shifting. It facilitates communication between devices with different voltage levels and enhances signal integrity in buses. Additionally, it is utilized in memory interfacing, multiplexing, and interfacing microcontrollers with peripherals. Its high-speed performance makes it suitable for high-frequency applications in consumer electronics, automotive, and industrial systems.

Equivalent

Equivalent products to the SN74HCT244N include the 74HC244, 74HCT244, and 74LS244. Other alternatives are the MC74HC244, MC74HCT244, and the 74ACT244. Ensure to check specific voltage levels, speed, and functionality for compatibility in your application.

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