74AC245SCX

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74AC245SCX

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IC TXRX NON-INVERT 6V 20SOIC

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Attribut Wert
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)

Übersicht

Description

The 74AC245SCX is an octal bus transceiver with 3-state outputs, part of the 74AC series of high-speed CMOS devices. It features an 8-bit, bidirectional data bus interface and is used for asynchronous communication between data buses. The transceiver is designed for high-speed applications and is suitable for driving memory address inputs and other bus-oriented systems.
Key features include:
- Bidirectional Data Transfer: Allows data to flow in both directions, controlled by a direction pin (DIR).
- 3-State Outputs: Outputs can be set to high, low, or high-impedance state, enabling multiple devices to share a communication line without interference.
- High-Speed Operation: Supports fast data transfer, making it suitable for high-performance systems.
- TTL-Compatible Inputs: Ensures compatibility with TTL logic levels while providing CMOS-level performance.
The device operates with a supply voltage range of 2 to 6 volts and typically requires minimal power, making it efficient for various applications. The compact SOIC package (SCX) is suitable for space-constrained designs.

Equivalent

The 74AC245SCX is an octal bus transceiver with 3-state outputs. Equivalent products include:
1. SN74AC245 from Texas Instruments
2. MC74AC245 from ON Semiconductor
3. HD74AC245 from Renesas Electronics
4. TC74AC245 from Toshiba
These chips are similar in function and are generally used in applications requiring bidirectional data flow across an 8-bit data bus with 3-state control. Always verify pin configurations and electrical characteristics before substituting components.

Features

The 74AC245SCX is an octal bus transceiver with 3-state outputs, designed for asynchronous two-way communication between data buses. Key features include:
1. High-Speed CMOS Technology: Ensures low power consumption and high-speed operation.
2. Bidirectional Data Flow: Allows for data transfer in both directions between buses.
3. 3-State Outputs: Enables the outputs to be in one of three modes: high, low, or high-impedance, facilitating bus management.
4. Bus Hold Function: Prevents floating inputs and ensures stable logic levels without external pull-up resistors.
5. Wide Operating Voltage Range: Typically operates from 2V to 6V, providing flexibility in various applications.
6. Low Propagation Delay: Ensures quick data transmission, typically around 7.5 ns.
7. Input and Output Clamp Diodes: Protect against over-voltage transients.
8. Drive Capability: Can drive up to 50pF loads, suitable for a wide range of interfacing tasks.
This device is commonly used in applications requiring interfacing between systems with different bus architectures, such as microprocessors and memory.

Pinout

The 74AC245SCX is an octal bus transceiver with three-state outputs, commonly used in digital circuits for data transfer. It features a total of 20 pins. The primary function of the 74AC245 is to enable bidirectional data communication between two buses, typically in microprocessor systems.
Key pin functions include:
- Pins 1 & 19 (OE and DIR): Control pins. OE (Output Enable) enables the outputs when low, and DIR (Direction) determines the direction of data flow.
- Pins 2-9 (A0-A7): Data inputs/outputs for one side of the transceiver.
- Pins 11-18 (B0-B7): Data inputs/outputs for the opposite side of the transceiver.
- Pins 10 & 20 (GND and VCC): Power supply pins. GND is connected to ground, and VCC is the power supply input.
The device facilitates efficient data transfer with minimal delay and is designed to interface with TTL and CMOS logic levels. The three-state outputs allow multiple devices to connect to the same bus without interference, making it versatile for various applications in digital systems.

Manufacturer

The 74AC245SCX is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a broad range of integrated circuits. TI is known for its broad portfolio of semiconductor products, which include analog chips, embedded processors, and digital signal processors. The company serves various industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is recognized for its innovation and leadership in the semiconductor industry, providing essential components for a wide array of electronic devices.

Application

The 74AC245SCX is an octal bus transceiver with 3-state outputs, commonly used in digital systems for bidirectional data communication between buses. Its application areas include:
1. Microprocessor Systems: Facilitates data transfer between the CPU and peripheral devices.
2. Memory Expansion: Used to connect and manage communication between the processor and memory modules.
3. Data Acquisition Systems: Enables efficient data exchange in systems collecting and processing data from multiple sensors.
4. Communication Equipment: Assists in routing signals in networking devices.
5. Industrial Control: Implemented in control systems for managing input/output operations efficiently.
These applications leverage the transceiver's high-speed operation and low power consumption capabilities.

Package

The 74AC245SCX is an octal bus transceiver with 3-state outputs, featuring an SOIC-20 (Small Outline Integrated Circuit) package type. It is designed for surface-mount technology, providing a compact form factor suitable for various electronic applications.

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