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SN74ACT245DBR

Name: SN74ACT245DBR
Rating: 4.7 (12 reviews)

IC TXRX NON-INVERT 5.5V 20SSOP

製造商
製造商。部分 #SN74ACT245DBR
包 20-SSOP (0.209, 5.30mm Width)
資料表 SN74ACT245DBR DataSheet
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規格

Package	Tape & Reel (TR),Cut Tape (CT),Bulk
Series	74ACT
ProductStatus	Active
LogicType	Transceiver, Non-Inverting
NumberofElements	1
NumberofBitsperElement	8
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-SSOP (0.209, 5.30mm Width)

概述

Description

The SN74ACT245DBR is a high-speed, 8-bit transceiver designed for bidirectional data communication between devices in digital circuits. It operates within a 5V power supply range and features low power consumption, making it suitable for battery-operated applications.
This device supports data transfer rates up to 150 Mbps, allowing for efficient data handling in various applications. The transceiver includes separate control inputs for direction and enable signals, which facilitate easy management of data flow. Its robust design allows for compatibility with TTL and CMOS logic families.
The SN74ACT245DBR is housed in a SOIC-20 package, making it compact and suitable for space-constrained designs. Key applications include interfacing microcontrollers, memory devices, and other digital systems where reliable data transmission is essential.

Features

The SN74ACT245DBR is an octal bus transceiver designed for high-speed data transmission. Key features include:
1. Bus Direction Control: It supports bidirectional data flow with a dedicated direction control input.
2. High-Speed Operation: It operates at a maximum data rate of 110 Mbps, making it suitable for fast applications.
3. Low Power Consumption: The device has low power dissipation, with a typical ICC of 5 µA in the high-impedance state.
4. Wide Supply Voltage Range: Compatible with a supply voltage range of 4.5V to 5.5V.
5. TTL Compatible: The transceiver is TTL-compatible, allowing easy interfacing with other logic devices.
6. Tri-State Outputs: It features tri-state outputs, enabling easy connection to shared buses.
7. Thermal Shutdown: Integrated thermal protection enhances reliability.
8. Small Package Size: Available in a 20-pin TSSOP package, ideal for compact designs.
These features make the SN74ACT245DBR suitable for applications in data communication and interfacing between different logic families.

Package

The SN74ACT245DBR is packaged in a SOIC (Small Outline Integrated Circuit) format, specifically a 20-pin TSSOP (Thin Shrink Small Outline Package) with a width of 6.1mm. This package type is designed for surface mounting on PCBs, offering a compact footprint and efficient thermal performance.

Pinout

The SN74ACT245DBR is an 8-bit transceiver with a pin count of 20. It is designed for high-speed data transmission in both directions. The primary functions of the device include:
- Data Transmission: It can transmit data from A to B and vice versa, making it suitable for bus-oriented applications.
- Direction Control: It features a direction control pin (DIR) that determines the data flow direction.
- Enable Control: The output enable pins (OE) allow for control over whether the outputs are active or in a high-impedance state.
- Voltage Levels: It operates with a supply voltage range of 4.5V to 5.5V and is compatible with TTL logic levels.
The device is typically used in applications requiring buffer/driver capabilities, such as interfacing between different logic families or increasing drive capability for data lines.

Manufacturer

The manufacturer of the SN74ACT245DBR is Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of analog and digital integrated circuits. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovative technology in areas such as embedded processing, analog electronics, and sensing solutions. The company serves various markets, including automotive, industrial, communications, and consumer electronics, providing products that enable the development of advanced electronic systems.

Application

The SN74ACT245DBR is a bus transceiver designed for high-speed data communication. It is commonly used in applications such as data bus buffering, signal level shifting, and interfacing between different logic levels in microcontrollers, FPGAs, and other digital circuits. Its ability to handle bidirectional data transfer makes it suitable for systems requiring efficient data management in computer networks, telecommunications, and industrial automation.

Equivalent

Equivalent products to the SN74ACT245DBR include the SN74HC245, SN74LS245, and 74ACT245. Other alternatives may include similar bus transceivers from manufacturers like ON Semiconductor and NXP, such as the MC74ACT245 or the 74LVC245A. Always verify specifications to ensure compatibility.