SN74ACT244QDGSRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ACT244QDGSRQ1 is an automotive-grade octal buffer or driver featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 5.5V and accepts input voltages up to 5.5V. The device provides a maximum propagation delay of 9ns at 5V and features TTL-compatible inputs. Packaged in a VSSOP-20 (DGS) format with dimensions of 5.1mm x 4.9mm, it supports an operating temperature range from -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Qualified for automotive applications
• TTL-compatible inputs accepting voltages up to 5.5V
• Three-state outputs controlled by separate enable pins

Buffers, Drivers, Receivers, Transceivers Applications

• Drive indicator LEDs
• Redrive digital signals
• Drive transmission lines
• Hold signals during controller reset

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DGSR' corresponds to the VSSOP-20 package and tape-and-reel quantity. Confirm the Q1 designation aligns with AEC-Q100 qualification requirements for your target automotive environment. Ensure the extended temperature rating matches system thermal constraints.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-density octal buffering is required in automotive systems. The ACT logic family offers faster switching speeds compared to standard HCT variants. Verify that the 5.5V input tolerance meets interface requirements without additional level shifting.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ACT244-Q1 family of octal buffers. Other versions include SOIC-20 (DW), TSSOP-20 (PW), and VQFN-20 (RKS) packages. Non-automotive catalog equivalents exist under the SN74ACT244 designation, while military-grade options are available as SN54ACT244.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible substitutes within the same package include other SN74ACT244-Q1 variants such as SN74ACT244QWRKSRQ1 (VQFN) or SN74ACT244IPWRQ1 (TSSOP). Cross-family replacements like SN74HCT244QPWRQ1 offer different speed and drive characteristics.