74HCT595BQ,115

Shift Registers Overview

The Nexperia 74HCT595BQ,115 is an 8-bit serial-in/serial or parallel-out shift register with output latches and 3-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device utilizes the HCT logic family, ensuring TTL-compatible input levels. It features separate clocks for the shift and storage registers, a serial output (Q7S) for cascading, and an asynchronous master reset (MR). The component is housed in a DHVQFN16 package (SOT763-1), measuring 2.5 mm by 3.5 mm.

Shift Registers Feature Summary

• Provides 8-bit serial-to-parallel data conversion capabilities with independent shift and storage register clocks.
• Features 3-state parallel outputs controlled by an active-low output enable input for bus driving applications.
• Includes an asynchronous master reset input to clear the shift register independently of clock signals.
• Supports cascading through a dedicated serial output pin for expanding data width.

Shift Registers Applications

• Serial-to-parallel data conversion
• Remote control holding register
• Register once, drag and drop

Shift Registers Procurement Notes

Verify the specific ordering suffix

Shift Registers Selection Notes

Select this variant when TTL-level inputs are required alongside CMOS performance characteristics. The DHVQFN16 package offers a compact footprint suitable for space-constrained designs. Ensure the design accommodates the specified operating temperature range and supply voltage limits for reliable operation in industrial environments.

Shift Registers Part Context

This component belongs to the 74HCT595 series, which complements the standard 74HC595 by providing TTL-compatible input thresholds. While the HC version supports a wider voltage range down to 2.0 V, the HCT variant is optimized for 5 V systems. The BQ suffix denotes the leadless DHVQFN16 package, distinguishing it from plastic packages like SO16 or TSSOP16.

Shift Registers Replacement Considerations

Direct substitutes include other manufacturers' 74HCT595 devices in equivalent DHVQFN16 packages. Cross-reference functional specifications such as propagation delay and output drive current to ensure compatibility.