Description
The SN74LVTH245ADWR is a part of the Texas Instruments SN74LVTH245 series, a family of octal bus transceivers specifically designed for asynchronous two-way communication between data buses. This device is ideal for applications requiring high-speed data transfers and can operate efficiently in mixed 3.3V and 5V systems. It features a 3-state output for bus driving and isolation, and the inputs are tolerant of voltages up to 5.5V, making it suitable for interfacing with TTL or CMOS logic levels.
The SN74LVTH245ADWR is equipped with a direction control (DIR) and an output enable (OE) pin, allowing for flexible data flow control. Its high drive capability makes it suitable for driving heavy loads, and the device also incorporates bus-hold circuitry to eliminate the need for external pull-up or pull-down resistors on unused inputs. The "DWR" suffix indicates a specific package type, typically a SOIC (Small Outline Integrated Circuit) with a tape and reel packaging for automated assembly. This makes the SN74LVTH245ADWR a robust choice for various digital communication and data management applications.
Equivalent
The SN74LVTH245ADWR is a Texas Instruments 8-bit bus transceiver with 3-state outputs. Equivalent products include:
1. NXP 74LVT245
2. Fairchild (now ON Semiconductor) 74LCX245
3. STMicroelectronics 74LVC245
4. Microchip Technology 74ACT245
These alternatives offer similar functionality with variations in supply voltage range, drive capability, and package type, so ensure compatibility with your specific application before substituting.
Features
The SN74LVTH245ADWR is an octal bus transceiver from Texas Instruments, designed for asynchronous two-way communication between data buses. It features 3-state outputs, which allow for multiple devices to connect to a common bus without interference. The device operates on a supply voltage range of 2.7 V to 3.6 V and is tolerant of 5-V inputs, ensuring compatibility with a range of voltage levels. It includes built-in pull-up resistors for live insertion and partial power-down applications, which enhance system reliability and flexibility. The transceiver provides high-speed operation with low power consumption, making it suitable for a variety of applications in computing and communication equipment. It is equipped with an output-enable control that allows for the direction of data flow to be controlled. The SN74LVTH245ADWR is typically housed in a 20-pin SOIC package, making it suitable for compact design requirements. Its industrial temperature range support ensures reliable performance in diverse environments.
Pinout
The SN74LVTH245ADWR is an octal bus transceiver with 3-state outputs. It features a pin count of 20, typically in a small outline integrated circuit (SOIC) or thin shrink small outline package (TSSOP). This device is designed for asynchronous communication between data buses and is used for bidirectional data transfer. It operates with a supply voltage range of 2.7 V to 3.6 V and is designed for low-voltage applications.
The primary functions of the SN74LVTH245ADWR include:
1. Bidirectional Data Transfer: Allows data to flow in either direction between buses, controlled by the direction (DIR) input pin.
2. 3-State Outputs: The outputs can be in one of three states: high, low, or high-impedance (disabled), controlled by the output enable (OE) input pin.
3. High-Speed Operation: Designed for high-speed data transfer with low power consumption.
4. Drive Capability: It can drive a significant amount of output current, useful for driving heavy bus loads.
These features make the SN74LVTH245ADWR suitable for applications requiring efficient data buffering and level translation between different voltage systems.
Manufacturer
The SN74LVTH245ADWR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures electronic components. The company is known for its development of analog chips and embedded processors, which are used in a variety of electronic equipment. TI serves a wide range of industries, including consumer electronics, automotive, industrial, and communication sectors.
Application
The SN74LVTH245ADWR is an octal bus transceiver with 3-state outputs, designed for asynchronous two-way communication between data buses. Its primary application areas include interfacing between systems with different voltage levels, buffering data to improve signal integrity, and minimizing signal degradation in long-distance communication. It is commonly used in computing, communication systems, industrial control, and consumer electronics, where it facilitates data transfer between microprocessors, memory, and peripheral devices. The device's ability to drive large capacitive loads further enhances its suitability for high-performance data transmission applications.
Package
The SN74LVTH245ADWR is housed in a SOIC (Small Outline Integrated Circuit) package. Specifically, it is a 20-pin SOIC package with the dimensions that fit the standard for such packaging, typically used for surface mounting on PCBs.