74ACT11245PW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ACT11245PW is an octal bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports bidirectional data transmission between two buses based on the logic level at the direction-control (DIR) input. The device features TTL-voltage compatible inputs, flow-through architecture for optimized PCB layout, and center-pin VCC and GND configurations to minimize high-speed switching noise. It is characterized for operation from -40°C to 85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides asynchronous two-way communication between data buses via a single-direction control input.
• Features a flow-through architecture designed to optimize printed circuit board layout efficiency.
• Utilizes center-pin VCC and GND configurations to reduce high-speed switching noise.
• Incorporates EPIC (Enhanced-Performance Implanted CMOS) process technology.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous two-way communication between data buses
• Bus line driving applications requiring direct drive capability
• Systems utilizing TTL-voltage compatible interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant against the datasheet, as the PW suffix denotes TSSOP. Confirm that the design accommodates the specified 4.5 V to 5.5 V supply voltage range. Ensure thermal management aligns with the power dissipation limits provided in the absolute maximum ratings section. Check current production status, as some variants may be obsolete or not recommended for new designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal bus transceivers with 3-state outputs operating at standard 5 V logic levels. The ACT series offers performance suitable for applications needing TTL-compatible inputs. Consider the flow-through pinout if minimizing trace length and optimizing PCB layout are primary design constraints. Verify that the required operating temperature range falls within the specified -40°C to 85°C limits.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74ACT family of logic integrated circuits produced by Texas Instruments. The ACT series utilizes EPIC technology to deliver performance comparable to LS-TTL while maintaining CMOS low-power characteristics. The octal bus transceiver configuration allows for efficient data transfer across wide buses in digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ACT245DW

Buffers, Drivers, Receivers, Transceivers FAQ

How is the data direction controlled?

Data direction is determined by the logic level at the direction-control (DIR) input. A low level directs data from the B bus to the A bus, while a high level directs data from the A bus to the B bus.

What is the function of the OE input?

The output-enable (OE) input disables the device when set to a high logic level, effectively isolating the buses from each other.