NXP 74LVT273PW: 3V Octal D-Type Flip-Flop with Transparent Latches and 32 mA Output Drive

The NXP 74LVT273PW is a high-performance, octal D-type flip-flop designed for 3.3V VCC systems, making it a fundamental component in modern digital logic design. Fabricated with NXP's advanced Low-Voltage BiCMOS Technology (LVT), this device successfully bridges the gap between high speed and low power consumption, offering a robust solution for bus interfacing and data registration applications.

A key feature of this IC is its octal (8-bit) design, which integrates eight edge-triggered D-type flip-flops into a single package. This high level of integration helps reduce board space and component count, streamlining system design. The flip-flops feature a common clock (CP) and a common master reset (MR) pin. A low signal on the MR pin asynchronously clears all eight flip-flop outputs (Q0-Q7) to a low state, regardless of the clock or data inputs, providing immediate control for system initialization.

The device is characterized by its non-inverting outputs and positive-edge triggering. On each low-to-high transition of the clock signal, the data present at the D-inputs is transferred to the corresponding Q outputs. Between clock pulses, the data is latched and held stable, ensuring data integrity.

A significant advantage of the 74LVT273PW is its impressive 32 mA output drive capability. This high current strength allows the chip to directly drive multiple inputs or heavier loads, such as LEDs or similar peripherals, without requiring additional buffer ICs. This reduces system complexity and cost. Furthermore, the inputs are 5V tolerant, a critical feature for mixed-voltage environments. This allows the device to safely accept input signals from legacy 5V logic devices, facilitating seamless interfacing in systems undergoing a 3.3V transition.

Housed in a TSSOP-20 (PW) package, the IC is suitable for space-constrained applications. Its performance is tailored for high-speed bus interfacing, making it ideal for use in networking equipment, telecommunications infrastructure, data acquisition systems, and advanced computing motherboards where reliable data storage and transfer are paramount.

ICGOOODFIND: The 74LVT273PW is an exceptional choice for designers seeking a reliable, high-drive octal flip-flop for 3.3V systems. Its combination of 5V tolerant inputs, substantial 32 mA output current, and compact packaging provides a powerful and versatile solution for efficient data registration and bus interfacing challenges.

Keywords: Octal D-Type Flip-Flop, 32 mA Output Drive, 3.3V Logic, 5V Tolerant Inputs, TSSOP-20 Package.