SN74LS244DBR

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SN74LS244DBR

IC BUFF NON-INVERT 5.25V 20-SSOP

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  • Mfr. Partie #SN74LS244DBR
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Spécifications

Series 74LS
Part Status Active
Base Product Number 74LS244
Logic Type Buffer, Non-Inverting
Number of Elements 2
Number of Bits per Element 4
Output Type 3-State
Current - Output High, Low 15mA, 24mA
Voltage - Supply 4.75V ~ 5.25V
Operating Temperature 0°C ~ 70°C (TA)
Mounting Type Surface Mount
Package 20-SSOP (0.209", 5.30mm Width)
Supplier Device Package 20-SSOP
Packaging Cut Tape (CT), Tape & Reel (TR)

Vue d'ensemble

Description

The SN74LS244DBR is an octal buffer/driver designed for use in digital circuits. It belongs to the Low Power Schottky (LS) logic family, which provides high-speed operation with reduced power consumption. This device features eight independent buffer/driver outputs, each capable of driving up to 15 loads, making it suitable for interfacing between different logic families or increasing fan-out in a circuit.
The SN74LS244 operates with a supply voltage of 4.75V to 5.25V and has a typical propagation delay of 10ns, allowing for fast signal transmission. It has two active-low enable inputs that control the output states, ensuring flexibility in circuit design.
The package type, DBR, indicates a standard 20-pin Dual In-line Package (DIP), facilitating easy integration into various applications, like data bus buffering, signal isolation, and driving high-capacitance loads. Overall, the SN74LS244DBR is a reliable choice for enhancing signal integrity in digital systems.

Features

The SN74LS244DBR is an octal buffer/driver designed for high-speed data transmission. Key features include:
1. Octal Configuration: Contains eight output drivers, allowing multiple signals to be buffered simultaneously.
2. High-Speed Operation: Capable of operating at speeds up to 10 MHz, suitable for fast digital circuits.
3. TTL Compatible: Compatible with Transistor-Transistor Logic (TTL), ensuring interoperability with other TTL devices.
4. Tri-State Outputs: Outputs can be set to high, low, or high-impedance state, enabling multiple devices to connect to a common bus without interference.
5. Low Power Consumption: Designed to operate with minimal power, making it energy-efficient.
6. Wide Operating Voltage Range: Typically operates with a supply voltage of 4.75V to 5.25V.
7. Improved Noise Immunity: Enhanced noise margins ensure reliable performance in noisy environments.
8. Available in Various Packages: Offered in plastic DIP and surface mount packages for versatile integration.
These features make the SN74LS244DBR ideal for applications in digital communication and signal buffering.

Package

The SN74LS244DBR is packaged in a 20-pin Dual In-Line Package (DIP) form factor.

Pinout

The SN74LS244DBR is an octal buffer/driver with three-state outputs. It features a total of 20 pins. The primary functions of the pins are as follows:
- Inputs (A1 to A8): Pins 1-8 for data input.
- Enable (G1, G2A, G2B): Pins 9 (G1), 10 (G2A), and 11 (G2B) control the buffer operation. When enabled, the inputs are passed to the outputs.
- Outputs (Y1 to Y8): Pins 12-19 for buffered data output.
- VCC: Pin 20, the positive power supply.
- GND: Pin 10, the ground connection.
The device is designed to improve the drive capability of the signal and reduce loading on the previous stage. It operates with a typical supply voltage of 5V and is suitable for bus-oriented applications. The SN74LS244 is part of the Low-power Schottky logic family, ensuring fast operation with minimal power consumption.

Manufacturer

The SN74LS244DBR is manufactured by Texas Instruments (TI), a leading semiconductor and electronics company. Founded in 1930, Texas Instruments is headquartered in Dallas, Texas, and is known for designing and manufacturing a wide range of analog and digital semiconductor devices, including integrated circuits (ICs), processors, and embedded systems. TI serves various industries, including automotive, industrial, communications, and consumer electronics, providing innovative solutions for applications like signal processing, power management, and data conversion. The SN74LS244DBR specifically is a hex buffer/driver designed for high-speed data handling in digital circuits.

Application

The SN74LS244DBR is a hex buffer/driver that is commonly used in digital circuits for signal buffering and driving applications. Its primary areas of application include data transmission in communication systems, interfacing between different logic families, and driving LED displays. It is also utilized in memory address decoding, signal conditioning, and as a part of larger integrated circuits in microcontroller and microprocessor systems to enhance signal integrity and drive capability.

Equivalent

Equivalent products for the SN74LS244DBR chip include the 74HC244, 74HCT244, and 74LS244. These chips serve similar functions as octal buffers/drivers with tri-state outputs. Always verify compatibility based on voltage levels and specifications before substitution.

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