74LVC821AD,118

Overview

The 74LVC821AD,118 is an 8-bit universal shift register manufactured by NXP USA Inc. It operates within a supply voltage range of 1.2V to 3.6V and features 5V-tolerant inputs. The device supports parallel load and serial shift operations with independent clock inputs for data storage and shift functions. It utilizes a 20-SOIC package and includes asynchronous reset functionality. The component is designed for high-speed applications requiring reliable data retention and shifting capabilities in low-voltage environments.

Feature Summary

• Supports both parallel load and serial shift data transfer modes
• Features 5V-tolerant inputs for compatibility with mixed-voltage systems
• Includes independent clock inputs for separate control of storage and shift operations

Applications

• Data buffering and temporary storage in digital circuits
• Serial-to-parallel and parallel-to-serial conversion interfaces
• Shift register chains for display drivers or LED matrices

Procurement Notes

Verify the exact manufacturer designation as NXP USA Inc. or Nexperia, as corporate branding may vary across datasheets and distributor listings. Confirm the suffix ,118 corresponds to the specific tape and reel packaging configuration required for your assembly process. Check RoHS compliance status against current environmental regulations before finalizing procurement orders.

Selection Notes

Select this component when an 8-bit shift register with 5V-tolerant inputs is required for low-voltage logic systems. Ensure the design accommodates the dual-clock architecture for independent shift and load control. Verify that the SOIC-20 package dimensions fit the available PCB footprint and thermal requirements of the target application environment.

Part Context

This part belongs to the 74LVC series of low-voltage CMOS logic devices. It provides standard shift register functionality optimized for operation between 1.2V and 3.6V. The device is suitable for applications requiring robust data handling in portable electronics and industrial control systems where voltage translation and speed are critical factors.

Replacement Considerations

Check for direct pin-compatible alternatives from the same 74LVC family if availability is constrained. Verify functional equivalence regarding clock inputs and reset behavior when substituting with other manufacturers' 8-bit shift registers.