SN74ACT245RKSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ACT245RKSR is an octal bus transceiver from the SNx4ACT245 series, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features three-state outputs. The device provides non-inverting data transmission between two buses with direction control via the DIR pin and output enablement via the OE pin. It utilizes ACT logic technology, offering a maximum propagation delay of 8 ns at 5 V. The component is housed in a 20-pin VQFN package (RKS) and supports an operating temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional bus transceiver designed for asynchronous communication
• Three-state outputs minimize bus contention during isolation
• Direction control allows data flow selection between A and B buses
• Inputs accept voltages up to 5.5 V for TTL compatibility

Buffers, Drivers, Receivers, Transceivers Applications

• Pro Audio systems
• Video and Signage equipment
• Appliances
• Factory Automation and Control

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'RKSR' corresponds to the VQFN-20 package configuration. Confirm the moisture sensitivity level and reflow temperature profile requirements for surface-mount assembly. Ensure the procurement documentation matches the active production status indicated in the manufacturer's package addendum.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal bus interface with low-drive CMOS characteristics is required to minimize output ringing. The slow edge rates are suitable for applications where overshoot and undershoot must be controlled. Verify that the 4.5 V to 5.5 V supply range aligns with the system power architecture.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4ACT245 family of octal bus transceivers. The RKS suffix designates the VQFN package variant. Other variants in the family include SSOP, SOIC, TSSOP, and PDIP packages, sharing identical electrical specifications but differing in physical dimensions and thermal properties.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ACT245DGSR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle high-impedance states?

When the Output Enable (OE) pin is high, the device enters a high-impedance state, effectively isolating the buses.

What is the input voltage tolerance?

The inputs are overvoltage tolerant and can accept voltages up to 5.5 V regardless of the VCC level.