SN74HC245DBR

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SN74HC245DBR

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IC TXRX NON-INVERT 6V 20SSOP

  • HerstellerTexas Instruments

  • Herstellerteil #SN74HC245DBR

  • Paket SSOP-20

  • Auf Lager3476

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Spezifikationen

Attribut Wert
Package / Case Tape & Reel (TR),Cut Tape (CT)
Series 74HC
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 7.8mA, 7.8mA
Voltage - Supply 2V ~ 6V
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Übersicht

Description

The SN74HC245DBR is an octal bus transceiver from Texas Instruments, designed for asynchronous two-way data communication between data buses. It belongs to the 74HC series, which are high-speed CMOS devices. This specific model features three-state outputs, allowing for multiple devices to connect to a common bus without interference. The transceiver is bidirectional and is equipped with a direction control (DIR) input and an output enable (OE) input to control data flow direction and enable the device outputs, respectively.
Operating at a wide voltage range of 2V to 6V, the SN74HC245DBR is compatible with TTL logic levels, making it versatile for various digital circuits. It offers high drive capability, with each output able to source or sink up to 6mA, and low power consumption, thanks to its CMOS technology. The device comes in a 20-pin SOIC package, with a maximum data rate of approximately 6 Mbps, suitable for moderate-speed applications in computing, instrumentation, and communication systems.

Equivalent

Equivalent products to the SN74HC245DBR, an octal bus transceiver with 3-state outputs, include:
1. NXP 74HC245D
2. ON Semiconductor MC74HC245ADWG
3. Fairchild's (now ON Semiconductor) 74HC245N
4. STMicroelectronics M74HC245B1R
5. Microchip Technology TC74HC245AF
These alternatives offer similar functionality and pin configuration, suitable for applications requiring bidirectional data transmission and level shifting. Always verify datasheets for specific electrical and timing specifications.

Features

The SN74HC245DBR is an octal bus transceiver with 3-state outputs, designed for asynchronous two-way data communication between data buses. Key features include:
1. High-Speed CMOS Technology: Offers fast switching speeds with low power consumption.
2. Voltage Range: Operates in a wide voltage range from 2V to 6V, suitable for various applications.
3. 3-State Outputs: Allows for multiple transceivers to be connected to the same bus without interference.
4. Direction Control: Features a direction control input to determine the data flow direction.
5. Output Enable Control: Enables or disables the outputs, providing flexibility in bus control.
6. Low Power Consumption: Maximizes efficiency in power-sensitive applications.
7. Latch-Up Performance: Exceeds 100mA per JESD 17 standard.
8. Package: Available in a 20-pin SOIC package, which is compact and suitable for surface mounting.
These features make the SN74HC245DBR ideal for a variety of digital communication and interface applications, ensuring efficient data transfer and control.

Pinout

The SN74HC245DBR is an octal bus transceiver with three-state outputs. It is part of the 74HC logic family and is designed for asynchronous two-way communication between data buses. This device allows for bidirectional data transfer between two buses, and is often used in memory-address drivers, clock drivers, and buffer registers.
The SN74HC245DBR comes in a 20-pin package. Its pin configuration typically includes:
- 8 data input/output pins (A1 to A8 and B1 to B8) for the two bus interfaces.
- A direction control pin (DIR), which determines the direction of data flow.
- An output enable pin (OE), which, when high, places the bus into a high-impedance state, effectively disconnecting it from the circuit.
- Power supply (VCC) and ground (GND) pins.
The device operates at a supply voltage range of 2V to 6V and is known for its high speed and low power consumption characteristics.

Manufacturer

The SN74HC245DBR is manufactured by Texas Instruments. Texas Instruments, commonly abbreviated as TI, is a global semiconductor company headquartered in Dallas, Texas. It is known for designing and manufacturing a wide range of semiconductor products, including integrated circuits (ICs), processors, and sensors. TI serves a diverse set of industries, including automotive, industrial, consumer electronics, and communications equipment. The company is particularly well-regarded for its analog chips and embedded processors, which are key components in various electronic devices. Texas Instruments is recognized for its focus on innovation, quality, and providing comprehensive support to engineers and designers worldwide.

Application

The SN74HC245DBR is a bidirectional bus transceiver used for interfacing data buses in various applications. Key areas include microprocessor/microcontroller systems for data exchange, memory and I/O interfacing, and signal buffering. It is commonly employed in digital communication protocols, data acquisition systems, and any application requiring signal level shifting or driving capabilities. Its ability to control data flow direction and provide isolation makes it suitable for networked systems and peripheral interfacing in embedded systems, consumer electronics, and industrial automation.

Package

The SN74HC245DBR is a part of the SN74HC245 series, which is an octal bus transceiver with 3-state outputs. The "DBR" in its designation indicates it comes in a "SSOP" (Shrink Small Outline Package) with a "Tape and Reel" packaging for automated assembly processes.

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