74AC245SCX

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74AC245SCX

IC TXRX NON-INVERT 6V 20SOIC

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規格

Package Tape & Reel (TR),Cut Tape (CT)
Series 74AC
ProductStatus Active
LogicType Transceiver, Non-Inverting
NumberofElements 1
NumberofBitsperElement 8
OutputType 3-State
Current-OutputHighLow 24mA, 24mA
Voltage-Supply 2V ~ 6V
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 20-SOIC (0.295, 7.50mm Width)

概述

Description

The 74AC245SCX is an octal bus transceiver and is part of the 74AC family of digital logic devices. It is designed for high-speed data transmission and is often used in applications that require bidirectional data flow between two buses. The device features eight data inputs (A1-A8) and eight data outputs (B1-B8), allowing for seamless communication.
The 74AC245 operates with a supply voltage range of 4.5V to 5.5V and is compatible with TTL (Transistor-Transistor Logic) levels. It includes two control pins: DIR, which determines the direction of data flow, and OE (Output Enable), which activates the outputs. The device's high-speed, low-power characteristics make it suitable for a variety of applications, including computer systems, networking equipment, and communication devices.
Its compact 20-pin surface-mount package (SCX) allows for easy integration into electronic circuits, making the 74AC245 an essential component in modern digital design.

Features

The 74AC245SCX is an octal buffer/driver with three-state outputs. Key features include:
1. Functionality: It serves as a data buffer or driver, capable of enhancing signal integrity and driving capacitive loads.
2. Output Configuration: It has eight outputs that can be configured to either high-impedance (high-Z) or active states, controlled by the direction control pin (DIR).
3. Voltage Range: Operates with a supply voltage range of 4.5V to 5.5V, making it suitable for standard TTL logic levels.
4. Speed: It offers high-speed operation, with a propagation delay typically around 5 ns, enabling efficient data transfer in fast applications.
5. Low Power Consumption: Designed for low power dissipation, which is ideal for battery-operated devices.
6. Pin Compatibility: It is compatible with other 74 series logic devices, facilitating easy integration into existing designs.
7. Package Type: Available in a surface-mount SOIC package, optimizing PCB space.
This device is widely used in data communication, signal buffering, and interfacing applications.

Package

The 74AC245SCX is packaged in a SOIC (Small Outline Integrated Circuit) form factor. It typically features an 8-lead configuration and is suitable for surface mounting on PCBs.

Pinout

The 74AC245SCX is an octal bus transceiver with 3-state outputs, designed for asynchronous communication between data buses. It has a pin count of 20 pins.
### Pin Functions:
1. A1 to A8 (Pins 1-8): Data inputs for one direction of data flow.
2. B1 to B8 (Pins 19-12): Data outputs for the opposite direction of data flow.
3. DIR (Pin 9): Direction control input. High for B to A direction, low for A to B direction.
4. OE (Pin 10): Output enable. When high, outputs are in high-impedance state; when low, outputs are enabled.
5. GND (Pin 11): Ground connection.
6. VCC (Pin 20): Power supply connection.
The device is commonly used in applications requiring data transfer between different bus systems, allowing for efficient data management and flow control.

Manufacturer

The 74AC245SCX is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, including digital signal processors (DSPs), microcontrollers, and analog devices. Founded in 1930, the company is known for its innovations in the electronics industry, particularly in areas such as digital processing and embedded systems. TI serves a wide range of markets, including automotive, industrial, communications, and consumer electronics, providing solutions that enhance performance and efficiency in electronic designs.

Application

The 74AC245SCX is an octal bus transceiver used in various applications such as data buffering, signal isolation, and interfacing between different logic levels. It's commonly employed in computer systems for data transfer between buses, in communication systems for bidirectional data flow, and in industrial applications for connecting microcontrollers to peripheral devices. Its high-speed capabilities make it suitable for high-performance electronics.

Equivalent

The 74AC245SCX is an octal buffer/driver with tri-state outputs. Equivalent products include:
1. 74ACT245 (with TTL-compatible inputs)
2. 74HC245 (high-speed CMOS version)
3. 74HCT245 (TTL-compatible CMOS version)
4. MC74AC245 (Motorola equivalent)
5. SN74AC245 (Texas Instruments equivalent)
Always verify specifications for pin configuration and electrical characteristics when substituting.

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