CAHCT595QWBQBRQ1

Shift Registers Overview

The CAHCT595QWBQBRQ1 is an automotive-grade, 8-bit serial-in, parallel-out shift register with a D-type storage register and 3-state outputs. It operates within a supply voltage range of 4.5V to 5.5V and features TTL-compatible inputs. The device provides balanced CMOS outputs capable of sourcing and sinking up to 8mA. It includes separate positive-edge triggered clocks for the shift register (SRCLK) and storage register (RCLK), along with a direct overriding clear input (SRCLR). Typical propagation delay is 6ns at 25°C and 5V. It is qualified to AEC-Q100 standards with HBM ESD Level 2 and CDM Level C4B.

Shift Registers Feature Summary

• AEC-Q100 qualified for automotive applications across -40°C to +125°C temperature grades
• Features wettable flank QFN package for improved solder joint inspection via AOI
• Includes latching logic circuitry with unknown power-up states requiring defined initialization
• Balanced CMOS 3-state outputs allow high-impedance isolation when output enable is asserted

Shift Registers Applications

• Network switches
• Power infrastructures
• LED displays
• Servers

Shift Registers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the SN74AHCT595-Q1 family includes both WQFN and TSSOP options. Confirm that the wettable flank feature is present if automatic optical inspection reliability is a design requirement. Ensure the selected variant aligns with the system's thermal management capabilities and supply voltage constraints.

Shift Registers Selection Notes

Select this component when a 5V logic interface with TTL-compatible input thresholds is required in automotive environments. The device is suitable for bus interface applications where low drive strength helps minimize output ringing. Consider the WQFN package for compact layouts requiring enhanced solderability verification, or the TSSOP alternative if leaded packages are preferred.

Shift Registers Part Context

This part belongs to the SN74AHCT595-Q1 series of automotive 8-bit shift registers. It shares functional similarities with other members of the AHCT family but is specifically optimized for automotive reliability and 5V operation. The device integrates an 8-bit shift register feeding an 8-bit storage register, providing flexible data handling for serial-to-parallel conversion tasks in vehicle electronics.

Shift Registers Replacement Considerations

SN74AHCT595QPWRQ1