74HCT594PWJ

Shift Registers Overview

The Nexperia 74HCT594PWJ is an 8-bit serial-in/serial or parallel-out shift register with a storage register, belonging to the HCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL input levels. The device provides synchronous serial input and output capabilities, allowing for cascading via a serial output pin (Q7S). It includes separate clock inputs for the shift register (SHCP) and storage register (STCP), as well as independent direct clear inputs for both registers (SHR and STR). Packaged in a TSSOP16 format, it supports ambient temperatures from -40 °C to +125 °C.

Shift Registers Feature Summary

• Features independent clocks and direct clear inputs for both shift and storage registers
• Provides synchronous serial input and output with cascading capability
• Delivers 8-bit parallel output data
• Includes clamp diodes on inputs for interfacing with voltages exceeding VCC

Shift Registers Applications

• Serial-to-parallel data conversion
• Remote control holding register

Shift Registers Procurement Notes

Verify the specific ordering suffix 'J' against official Nexperia documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with standard TSSOP16 footprint dimensions during PCB layout. Confirm that the HCT logic family requirements align with the target system's voltage and interface standards before finalizing procurement.

Shift Registers Selection Notes

Select this component when TTL-compatible input levels are required alongside CMOS performance characteristics. The HCT series ensures compatibility with standard TTL logic outputs while maintaining low power dissipation. Consider the TSSOP16 package if space-constrained surface-mount assembly is necessary. Verify that the operating temperature range meets the environmental conditions of the intended application.

Shift Registers Part Context

This part belongs to the 74HCT594 series, which is an evolution of the classic 74-series logic family adapted for high-speed CMOS technology with TTL-compatible inputs. The PWJ designation indicates a specific variant within the broader 74HC/HCT594 product line, distinguished by its TSSOP16 package and specific manufacturing or packaging attributes defined by Nexperia.

Shift Registers Replacement Considerations

Direct replacements include other 74HCT594 variants from Nexperia such as 74HCT594D or 74HCT594DB, provided the package type matches the design constraints. Cross-manufacturer equivalents must be verified for identical pinout, electrical characteristics, and logic functionality.