SN74LS245DBR

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SN74LS245DBR

IC TXRX NON-INVERT 5.25V 20SSOP

100% gốc & amp; Mới

24 giờ sẵn sàng để vận chuyển

Bảo hành 365 ngày

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Thông số kỹ thuật

Package Tape & Reel (TR),Cut Tape (CT)
Series 74LS
ProductStatus Active
LogicType Transceiver, Non-Inverting
NumberofElements 1
NumberofBitsperElement 8
OutputType 3-State
Current-OutputHighLow 15mA, 24mA
Voltage-Supply 4.75V ~ 5.25V
OperatingTemperature 0°C ~ 70°C (TA)
MountingType Surface Mount
Package/Case 20-SSOP (0.209, 5.30mm Width)

Tổng quan

Description

The SN74LS245DBR is a high-speed, dual-direction, 8-bit transceiver designed for asynchronous data communication between two buses. It belongs to the Texas Instruments 74LS (Low Power Schottky) series, which ensures fast switching times and low power consumption. The device supports data flow in both directions, allowing it to function effectively in a variety of applications, such as data processing, memory interfacing, and communication systems.
Key features include:
- Dual Direction: It can transmit data from A to B and from B to A.
- 8-Bit Data Bus: Capable of handling 8 bits simultaneously, facilitating efficient data transfer.
- Enable Controls: The device includes enable pins that allow for control over data flow and power management.
- TTL Compatible: It is compatible with TTL (Transistor-Transistor Logic) levels, making it versatile for integration with other logic devices.
The SN74LS245DBR is typically used in systems requiring bidirectional data transfer, providing reliable performance in compact designs.

Features

The SN74LS245DBR is an octal bidirectional transceiver designed for asynchronous communication between data buses. Key features include:
1. Bidirectional Data Transfer: Supports data flow in both directions with separate send and receive enables.
2. 8-Bit Design: Contains eight data lines, allowing for 8-bit data communication.
3. TTL Compatible: Compatible with TTL (Transistor-Transistor Logic) levels, ensuring interoperability with other TTL devices.
4. High-Speed Operation: Typical propagation delay of 15 ns, enabling fast data transfer.
5. Active Low Control Inputs: Features active low control inputs for ease of interfacing.
6. Three-State Outputs: Outputs can be configured to high, low, or high impedance state, facilitating bus sharing.
7. Wide Supply Voltage Range: Operates within a supply voltage of 4.75V to 5.25V.
8. Low Power Consumption: Designed for low power requirements, improving overall system efficiency.
This device is ideal for applications requiring efficient data transfer between devices in digital systems.

Package

The SN74LS245DBR is packaged in a small form factor, specifically a 20-pin Dual In-Line Package (DIP) with a flat, rectangular shape. It is designed for easy mounting on printed circuit boards and provides a space-efficient solution for integrated circuit applications.

Pinout

The SN74LS245DBR is an 8-bit bus transceiver designed for high-speed data transfer in digital systems. It features a total of 20 pins.
Pin Count: 20 pins
Pin Functions:
1. A/B Ports: The device has two sets of data pins, A1-A8 (input) and B1-B8 (output), allowing bidirectional data flow.
2. Direction Control (DIR): This pin determines the direction of data flow between the A and B ports.
3. Output Enable (OE): When this pin is low, the outputs are enabled; when high, the outputs are in a high-impedance state.
4. GND: Ground reference.
5. VCC: Power supply input.
The SN74LS245 is commonly used in applications requiring data buffering and transceiving between different parts of a system, ensuring efficient data communication.

Manufacturer

The SN74LS245DBR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor design and manufacturing company that specializes in analog, embedded processing, and digital signal processing (DSP) technologies. Founded in 1930, it is one of the largest producers of semiconductors in the world and serves various sectors, including automotive, industrial, communications, and consumer electronics. TI is known for its innovation in integrated circuits and is a key player in providing components for various electronic applications. The SN74LS245DBR is a bus transceiver used in digital circuits to facilitate communication between data lines.

Application

The SN74LS245DBR is an octal bus transceiver used for bidirectional data communication between devices. Its application areas include data bus interfacing in computers, microcontrollers, and digital systems, as well as in communication links for connecting peripheral devices. It is utilized in systems requiring high-speed data transfer, such as in memory interfaces, and can be found in automotive, industrial, and consumer electronics for managing data flow between multiple components.

Equivalent

The SN74LS245DBR is a low-power bus transceiver. Equivalent products include:
1. SN74HC245
2. SN74HCT245
3. 74LS245 (standard version)
4. 74HC245 (high-speed CMOS version)
5. 74HCT245 (high-speed CMOS version with TTL compatibility)
Always verify pin configurations and specifications for specific applications.

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