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SN74ABT245BDW

Name: SN74ABT245BDW
Rating: 4.7 (12 reviews)

IC TXRX NON-INVERT 5.5V 20-SOIC

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資料表 SN74ABT245BDW DataSheet
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規格

Series	74ABT
Part Status	Active
Logic Type	Transceiver, Non-Inverting
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Current - Output High, Low	32mA, 64mA
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	74ABT245

概述

Description

The SN74ABT245BDW is a high-speed, low-voltage, octal bidirectional transceiver with 3-state outputs, designed for asynchronous data communication between devices. It operates with a supply voltage range of 4.5V to 5.5V and is compatible with TTL logic levels. The device features two separate input/output (I/O) ports, allowing data to be transmitted in both directions, making it ideal for applications requiring data transfer between microcontrollers or memory units.
The transceiver has an active-high direction control (DIR) pin, which determines the data flow direction, and the 3-state outputs help to reduce bus contention by allowing unused outputs to be disabled. It supports fast switching speeds, making it suitable for high-performance systems. The SN74ABT245BDW is encapsulated in a TSSOP package, allowing for compact designs and efficient space utilization in printed circuit boards (PCBs). Overall, it is widely utilized in digital circuits for reliable data handling and communication tasks.

Features

The SN74ABT245BDW is an octal bus transceiver designed for high-speed data transfer. Key features include:
1. Dual Directionality: Supports bidirectional data transfer between two buses.
2. Bus Hold: Provides bus hold capabilities to maintain a stable state when inputs are floating.
3. TTL Compatible: Compatible with TTL logic levels, making it suitable for interfacing with a variety of devices.
4. High-Speed Operation: Capable of high-speed operation with a maximum propagation delay of 5 ns at 25°C.
5. Wide Supply Voltage: Operates with a supply voltage range of 4.5V to 5.5V.
6. Low Power Consumption: Designed for low power dissipation, making it efficient for battery-operated applications.
7. Active Bus Control: Offers control pins for enabling and disabling the transceivers.
8. Thermal Protection: Built with features to help prevent thermal overload.
These attributes make the SN74ABT245BDW suitable for various applications in digital communication and data handling systems.

Package

The SN74ABT245BDW is packaged in a TSSOP (Thin Shrink Small Outline Package) with a 20-pin configuration. This package type is designed for space efficiency and improved thermal performance.

Pinout

The SN74ABT245BDW is a dual-directional transceiver designed for asynchronous communication between data buses. It features 20 pins in total. The primary functions include:
- Data Input/Output: It has 8 data input/output lines (A1-A8, B1-B8) that facilitate bidirectional data transfer.
- Direction Control: The DIR pin determines the direction of data flow (from A to B or B to A).
- Enable Control: The OE (Output Enable) pin allows for control over the output drivers, enabling or disabling them as needed.
- Power and Ground: VCC and GND pins provide power and ground connections.
The device operates with a 5V supply and is compatible with TTL logic levels. It is typically used in applications requiring level shifting or buffering of signals between different logic families.

Manufacturer

The SN74ABT245BDW is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of analog and digital semiconductor devices, including microcontrollers, processors, and amplifiers, as well as various integrated circuits. Founded in 1930, TI operates in multiple sectors, including automotive, industrial, communications, and consumer electronics. The company is known for its innovations in analog and embedded processing technologies and is a significant player in the semiconductor industry, providing solutions for various applications worldwide.

Application

The SN74ABT245BDW is a 16-bit transceiver designed for data transmission in various applications, including telecommunications, computer systems, and industrial automation. It is commonly used for level shifting between different voltage systems, data buffering, and interfacing between microcontrollers and peripheral devices. Its ability to operate at high speeds and handle bidirectional data makes it suitable for applications in local area networks (LANs), memory interfacing, and digital signal processing.

Equivalent

Equivalent products to the SN74ABT245BDW include the SN74ACT245, SN74AHCT245, and the 74LVC245. These chips provide similar bus transceiver functionalities, with variations in speed, power supply voltage, and logic levels. Always check specific datasheets for compatibility in your application.