SN74ACT245PWR

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SN74ACT245PWR

IC TXRX NON-INVERT 5.5V 20TSSOP

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Spezifikationen

Package Tape & Reel (TR),Cut Tape (CT)
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-TSSOP (0.173, 4.40mm Width)

Übersicht

Description

The SN74ACT245PWR is a high-speed, octal bus transceiver designed for data transfer between buses. It operates with a supply voltage between 4.5V and 5.5V and is part of the Texas Instruments 74xx family of digital logic devices. This device features two sets of data lines (A and B) and can transmit data in both directions, making it suitable for applications requiring bidirectional communication.
Key features include:
- High-speed operation: Compatible with 3.3V and 5V systems, with propagation delays as low as 8 ns.
- Integrated control logic: Enables easy management of data flow via the DIR (direction) and EN (enable) pins.
- Tri-state outputs: Allows multiple devices to share the same bus without signal contention.
- Wide temperature range: Suitable for industrial applications, operational from -40°C to 125°C.
The SN74ACT245PWR is commonly used in microcontroller and peripheral interfacing, data bus buffering, and level shifting applications. Its robust design ensures reliability in various electronic systems.

Features

The SN74ACT245PWR is an octal buffer/driver designed for use in high-speed applications. Key features include:
1. Data Direction Control: Supports bidirectional data transfer with an enable control pin.
2. High-Speed Operation: Capable of operating at speeds up to 250 Mbps.
3. 3-State Outputs: Allows for easy connection to buses and minimizes loading effects.
4. Wide Voltage Range: Operates with a supply voltage range from 4.5V to 5.5V, compatible with TTL and CMOS logic levels.
5. Low Power Consumption: Designed for low standby current, making it energy-efficient.
6. Temperature Range: Suitable for applications in standard temperature ranges (0°C to 70°C).
7. Pin Configuration: Available in a 20-pin TSSOP package for compact designs.
These features make the SN74ACT245PWR ideal for interfacing between different logic levels and driving large capacitive loads in digital systems.

Package

The SN74ACT245PWR is packaged in a TSSOP (Thin Shrink Small Outline Package) with 20 pins.

Pinout

The SN74ACT245PWR is an octal bus transceiver with 3-state outputs, featuring a total of 20 pins. Its primary function is to provide bidirectional data transfer between two buses, typically in microprocessor and memory interfacing applications. The device operates at high speed and is designed to be used in systems requiring low power consumption.
Key pin functions include:
- Data inputs/outputs (A1-A8, B1-B8): These pins are used for data transmission between the two buses.
- Direction control (DIR): This pin determines the direction of data flow (A to B or B to A).
- Output enable (OE): This pin controls the activation of the outputs; when low, outputs are enabled, and when high, they are in a high-impedance state.
- Ground (GND) and VCC: Power supply and ground connections.
The SN74ACT245PWR is commonly used in applications requiring level shifting and interfacing between different logic levels.

Manufacturer

The SN74ACT245PWR is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1930, Texas Instruments designs and produces a wide range of electronic components, including analog technologies, embedded processors, and digital signal processors. The company serves various industries, including automotive, communications, consumer electronics, industrial, and healthcare. TI is known for its innovation, extensive product portfolio, and commitment to quality and reliability in its electronic solutions.

Application

The SN74ACT245PWR is a high-speed octal bus transceiver used in various applications, including data communication between microcontrollers and peripherals, memory interfacing, and digital signal processing. It's commonly utilized in computer systems, networking equipment, and automotive electronics for signal buffering and level shifting between different voltage domains. Its ability to handle bidirectional data flow makes it ideal for interconnecting multiple devices on a bus.

Equivalent

Equivalent products for the SN74ACT245PWR include the SN74AC245, SN74AHC245, and SN74HCT245. These chips are similar in function, serving as octal transceivers and bus drivers, but may have different voltage levels or input/output characteristics. Always verify specifications for compatibility in your application.

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