74LVC821AD,112

Overview

The 74LVC821AD,112 is a single-element, 10-bit D-type flip-flop manufactured by Nexperia (formerly NXP Logic). It features positive-edge triggering and three-state outputs. The device operates within a supply voltage range of 1.65 V to 3.6 V and supports low output currents of 24 mA for both high and low states. Propagation delay is specified at 7.3 ns under standard test conditions. It is housed in a 24-SSOP package with a width of 5.30 mm and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Single-element architecture containing ten independent D-type flip-flops
• Positive-edge clock triggering mechanism for data capture
• Three-state outputs allowing bus line driving capabilities
• High noise immunity due to CMOS technology

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations in digital systems
• Memory buffer stages for microcontroller interfaces
• Data latch applications in embedded control logic

Procurement Notes

Verify the manufacturer designation carefully, as Nexperia acquired NXP's Standard Products division. Confirm the specific suffix '112' corresponds to the SSOP-24 tape-and-reel or tube packaging variant required for your assembly process. Ensure the component meets RoHS compliance standards applicable to your region before finalizing procurement orders.

Selection Notes

Select this component when a compact solution for storing ten bits of data is required without external clocking complexity. The 24-SSOP package offers a space-efficient surface-mount option for dense PCB layouts. Consider the 7.3 ns propagation delay against your system clock speed to ensure timing margins are sufficient for reliable operation at the target frequency.

Part Context

This part belongs to the 74LVC family of low-voltage CMOS logic devices. It serves as a fundamental sequential logic element within digital design ecosystems. Unlike combinational gates, it provides state retention capabilities essential for synchronous digital systems. The 74LVC821A variant specifically addresses applications requiring multi-bit storage in a single integrated circuit footprint.

Replacement Considerations

The SN74LVC821ADBR from Texas Instruments is a documented functional substitute with identical logical operations and pinout compatibility. Verify that the replacement part's package dimensions and electrical characteristics align with your existing board design constraints.