HEF4014BT,653

Shift Registers Overview

The HEF4014BT,653 is an 8-bit static shift register manufactured by Nexperia in a 16-lead SO plastic small outline package (SOT109-1). It operates within a supply voltage range of 3.0 V to 15.0 V and supports synchronous parallel enable functionality. The device features clamp diodes on inputs for interfacing with voltages exceeding VDD using current limiting resistors. It provides buffered outputs at the last three stages (Q5 to Q7) and includes ESD protection compliant with JEDEC standards.

Shift Registers Feature Summary

• CMOS low power dissipation with high noise immunity
• Tolerant of slow clock rise and fall times
• Fully static operation with standardized symmetrical output characteristics
• ESD protection exceeding 2000 V (HBM) and 1000 V (CDM)

Shift Registers Applications

• Parallel-to-serial converter
• Serial data queueing
• General purpose register

Shift Registers Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the temperature range aligns with operational requirements. Ensure input interface circuits include necessary current limiting resistors if voltages exceed VDD. Check for compliance with relevant environmental directives before finalizing procurement specifications.

Shift Registers Selection Notes

Select this component when an 8-bit shift register with synchronous parallel loading is required. The inclusion of buffered outputs at stages five through seven allows direct connection to downstream logic without additional buffering. Verify that the operating frequency remains within the maximum clock frequency limits defined for the chosen supply voltage.

Shift Registers Part Context

This part belongs to the HEF4014B family of 8-bit static shift registers. It utilizes CMOS technology to achieve low power consumption while maintaining robust performance across a wide voltage range. The device is designed for general-purpose digital applications requiring serial-to-parallel or parallel-to-serial data conversion capabilities.

Shift Registers Replacement Considerations

Direct substitutes must maintain identical pinout, logic function, and electrical characteristics. Verify compatibility with existing PCB layouts and ensure replacement parts meet the same JEDEC ESD protection standards.