SN74HCS245QPWRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCS245QPWRQ1 is an automotive-grade octal bus transceiver featuring Schmitt-trigger inputs and three-state outputs. It operates within a supply voltage range of 2 V to 6 V, supporting ambient temperatures from -40°C to +125°C. The device provides balanced output drive currents of ±7.8 mA at 6 V. Propagation delay ranges from 7 ns to 49 ns depending on the supply voltage. It includes AEC-Q100 qualification for Grade 1 applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Schmitt-trigger inputs provide hysteresis to tolerate slow or noisy input signals effectively.
• Three-state outputs allow bidirectional data transfer controlled by direction and output enable pins.
• Low power consumption with typical supply current of 100 nA and input leakage of ±100 nA.
• Automotive qualification ensures reliability under extended temperature ranges.

Buffers, Drivers, Receivers, Transceivers Applications

• Enable or disable digital signals in automotive systems
• Eliminate slow or noisy input signals through Schmitt-trigger filtering
• Hold signals during controller reset sequences
• Debounce mechanical switches

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant (TSSOP-20 or VQFN-20) matches the design requirements. Confirm that the ordering suffix corresponds to the desired reel or cut tape quantity. Ensure the component meets the required AEC-Q100 Grade 1 specifications for the target automotive application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional octal data transfer is required with noise immunity. The Schmitt-trigger inputs are suitable for environments with signal integrity issues. Verify that the 2 V to 6 V operating range aligns with the system's power supply rails and that the thermal characteristics meet the PCB layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74HCS245-Q1 family of automotive octal bus transceivers. It shares functional similarities with other HCS series logic devices but is specifically optimized for automotive durability. The Q1 suffix indicates automotive qualification, while the WRKS or PW suffix denotes the physical package type.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCS245PW-Q1

Buffers, Drivers, Receivers, Transceivers FAQ

How does the Schmitt-trigger architecture benefit signal integrity?

It provides hysteresis that makes the device tolerant to slow or noisy input signals, preventing false triggering caused by signal ringing or interference.

What controls the direction of data flow?

The Direction (DIR) pin determines whether data flows from Port A to Port B or vice versa. When DIR is low, data moves from B to A; when high, it moves from A to B.