74HC299N,652

Shift Registers Overview

The 74HC299N,652 is an 8-bit universal shift register manufactured by NXP Semiconductors. It features multiplexed inputs and outputs to improve bit density and supports four operating modes: shift left, shift right, hold, and load data. The device includes 3-state outputs for direct bus line driving and is cascadable for n-bit word lengths. It operates within a supply voltage range of 2 V to 6 V and functions across temperatures from -40 °C to +125 °C.

Shift Registers Feature Summary

• Multiplexed inputs and outputs provide improved bit density
• Supports four operating modes including shift left, shift right, hold, and load data
• Features 3-state outputs that drive bus lines directly
• Cascadable design allows for expansion to n-bit word lengths

Shift Registers Applications

• Universal shift register circuits requiring bidirectional data movement
• Bus interface designs utilizing 3-state output control
• Data storage applications using the hold mode
• Parallel-to-serial or serial-to-parallel conversion systems

Shift Registers Procurement Notes

Verify the specific suffix 652 against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Confirm availability status as lifecycle changes may affect production. Ensure compatibility with system voltage levels and temperature requirements before integration.

Shift Registers Selection Notes

Select this component when an 8-bit universal shift register with multiplexed I/O is required. It is suitable for applications needing direct bus driving via 3-state outputs. Consider the HC logic family speed and power characteristics relative to other 74xx series options. Verify pin compatibility with existing Low-power Schottky TTL (LSTTL) footprints if replacing legacy designs.

Shift Registers Part Context

This part belongs to the 74HC series of high-speed Si-gate CMOS devices. It is designed to be pin-compatible with Low-power Schottky TTL (LSTTL) devices. The component complies with JEDEC standard no. 7A and offers ESD protection exceeding 2000 V per HBM JESD22-A114E.

Shift Registers Replacement Considerations

Check for equivalent parts in the 74HCT299 family for TTL-compatible input levels. Verify mechanical dimensions and pinout compatibility with alternative manufacturers offering similar 8-bit universal shift registers.