SN74ALS245ANSR

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SN74ALS245ANSR

+БОМ

IC TXRX NON-INVERT 5.5V 20-SO

  • ПроизводительТехасские инструменты

  • Мфр. Часть #SN74ALS245ANSR

  • В наличии2255

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Спецификации

Атрибут Ценность
Series 74ALS
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 15mA, 24mA
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature 0°C ~ 70°C (TA)
Mounting Type Surface Mount
Package / Case 20-SOIC (0.209", 5.30mm Width)
Supplier Device Package 20-SO
Base Product Number 74ALS245

Обзор

Description

The SN74ALS245ANSR is an octal bus transceiver designed for data transmission between two compatible buses. It operates with a supply voltage of 4.5V to 5.5V, making it suitable for TTL logic levels. This device features two sets of eight data pins, allowing it to transfer data in both directions through its A and B buses.
Key functionalities include enable control pins that allow for the activation or deactivation of the transceiver, ensuring data flow is controlled and efficient. The device supports high-speed operation with propagation delays typically around 10ns, making it suitable for fast data communication applications.
The SN74ALS245ANSR is available in a surface-mount package, which facilitates integration into compact electronic designs. It is widely used in computer systems, networking devices, and other applications requiring reliable data transfer. Overall, its robustness, speed, and versatility make it a popular choice for engineers working on digital communication systems.

Equivalent

Equivalent products to the SN74ALS245ANSR include the SN74LS245, SN74F245, SN74LVC245A, and the 74HC245 These chips are all 8-bit bidirectional transceivers with similar functionality, though they may differ in voltage levels, speed, and power consumption. It's essential to check the specific datasheets for compatibility in your application.

Features

The SN74ALS245ANSR is an octal bus transceiver designed for high-speed data communication. Key features include:
1. Dual Supply Voltages: Operates with a range of 4.5V to 5.5V, compatible with TTL systems.
2. Bidirectional Data Transfer: Supports data transmission in both directions between buses.
3. High Speed: Typical propagation delay of 10 ns at 25°C, enabling fast data transfer.
4. Three-State Outputs: Provides tri-state output control, allowing for easy bus sharing among multiple devices.
5. Control Inputs: Includes direction control (DIR) and enable (OE) inputs for managing data flow.
6. Low Power Consumption: Features a low power dissipation profile suitable for battery-operated devices.
7. Temperature Range: Rated for commercial temperature range from 0°C to 70°C.
8. Packaging: Available in surface-mount SOIC-20 package, facilitating compact designs.
These features make the SN74ALS245ANSR suitable for various applications, including data communication and signal buffering in digital systems.

Pinout

The SN74ALS245ANSR is an octal bidirectional transceiver designed for asynchronous communication between data buses. It features a total of 20 pins.
Pin Count and Functions:
- Pins 1-8 (A1-A8): These are the A data inputs/outputs for one direction of data transfer.
- Pins 9-10: These are control pins; Pin 9 (DIR) sets the direction of data flow, and Pin 10 (OE) is the output enable pin.
- Pins 11-18 (B1-B8): These are the B data inputs/outputs for the opposite direction of data transfer.
- Pins 19-20 (GND and VCC): Pin 19 is ground (GND), and Pin 20 is the power supply (VCC).
The device allows for data transfer in both directions, providing flexibility in interfacing between different logic levels or systems.

Manufacturer

The SN74ALS245ANSR is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments is known for designing and producing semiconductors and various integrated circuits, which are widely used in electronics. Founded in 1930, the company has a diverse portfolio that includes microcontrollers, processors, analog devices, and digital signal processors, serving multiple industries such as automotive, industrial, consumer electronics, and telecommunications. TI is recognized for its innovation in analog and embedded processing technologies, playing a significant role in advancing electronic design and manufacturing. The SN74ALS245ANSR itself is a high-speed, octal bus transceiver designed for data communication applications, making it valuable for circuit designers and engineers in developing efficient electronic systems.

Application

The SN74ALS245ANSR is an octal bus transceiver designed for high-speed data transfer. Its application areas include:
1. Data Communication: Facilitates bidirectional data transfer between devices.
2. Microprocessor Interfaces: Connects microprocessors to peripherals, enhancing data routing.
3. Memory Interfacing: Serves as an interface between memory and CPUs for efficient data exchange.
4. Networking Equipment: Used in routers and switches for signal integrity in data packets.
5. Consumer Electronics: Enables communication in devices like printers and scanners.
6. Industrial Automation: Supports communication in control systems and automation equipment.
Its high-speed operation makes it suitable for various digital applications.

Package

The SN74ALS245ANSR is packaged in a SOIC (Small Outline Integrated Circuit) with a surface-mount configuration. It typically has a 20-pin layout, which facilitates compact design and efficient heat dissipation in electronic circuits.

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