74HCT299N,652

Shift Registers Overview

The NXP USA Inc. 74HCT299N,652 is an 8-bit universal shift register featuring 3-state outputs, housed in a 16-pin PDIP package for through-hole mounting. It operates within the HCT logic series with a supply voltage range of 4.5 V to 5.5 V and functions across temperatures from -40 °C to +125 °C. The device supports four modes: shift left, shift right, hold, and load data. Multiplexed inputs and outputs provide improved bit density, while ESD protection exceeds 2000 V (HBM) and 200 V (MM).

Shift Registers Feature Summary

• Multiplexed inputs and outputs for improved bit density.
• Four operating modes including shift left, shift right, hold, and load data.
• 3-state outputs capable of driving bus lines directly.

Shift Registers Applications

• Data storage and transfer in digital systems.
• Parallel-to-serial and serial-to-parallel conversion.
• General-purpose shift register applications requiring high-density I/O.

Shift Registers Procurement Notes

Verify the specific suffix '652' against official NXP documentation to confirm packaging and tape-and-reel specifications. Confirm current production status as legacy or active, given the availability of newer revisions like Rev. 6. Ensure compatibility with existing PCB footprints for the 16-pin PDIP form factor before procurement.

Shift Registers Selection Notes

Select this component when an 8-bit universal shift register with 3-state outputs is required in a through-hole DIP package. It is suitable for designs needing multiplexed I/O to save pin count. Verify that the HCT logic level compatibility meets the system's voltage requirements compared to HC or LS families.

Shift Registers Part Context

This part belongs to the 74HCT299 family of 8-bit universal shift registers. It is pin-compatible with Low-power Schottky TTL devices but utilizes high-speed Si-gate CMOS technology. The device is specified in compliance with JEDEC standard no. 7A, ensuring interoperability with other industry-standard logic components.

Shift Registers Replacement Considerations

Check for updated revisions such as 74HC299D or 74HCT299 variants with different suffixes. Verify if surface-mount alternatives are acceptable if the PDIP package is not strictly required. Ensure any substitute maintains the 3-state output and multiplexed I/O functionality.