Nexperia USA Inc. 74LVC273BQ,115

Overview

74LVC273BQ,115 from Nexperia is an octal positive-edge-triggered D-type flip-flop with asynchronous master reset (MR), designed for synchronous data latching in digital logic systems. It operates across 1.2 V to 3.6 V supply, tolerates 5.5 V inputs, delivers 24 mA output drive at 3.0 V, and supports up to 150 MHz operation at 3.0–3.6 V - used in bus interface buffering, state register storage, and clock-domain synchronization in industrial control and communication modules.

For engineers reviewing the 74LVC273BQ,115 datasheet, 74LVC273BQ,115 pinout, 74LVC273BQ,115 application, or 74LVC273BQ,115 equivalent, key selection criteria include its 20-terminal DHVQFN package, -40 °C to +125 °C temperature range, Schmitt-trigger input tolerance for slow edges, 1.0 ns minimum data setup time at 3.3 V, and overvoltage-tolerant 5.5 V inputs enabling mixed-voltage level translation.

Technical Context

This device implements eight independent D-type flip-flops sharing a common clock (CP) and active-low master reset (MR). Each flip-flop captures Dn input state on the LOW-to-HIGH CP transition, provided setup/hold timing is met; MR forces all Qn outputs LOW regardless of clock or data state.

Its CMOS architecture enables low static current (≤40 μA at 3.6 V), while Schmitt-trigger inputs ensure robustness against slow-rising signals. The device complies with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36 across its full voltage range and supports 50 Ω transmission line driving at +85 °C.

Key Specifications

Pinout & Package

DHVQFN20 (SOT764-1) package: 2.5 × 4.5 × 0.85 mm body, 20-terminal no-lead quad flat design with exposed thermal pad (non-soldered by default); optimized for space-constrained PCBs and thermal performance in high-density logic layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal D-type flip-flop applications.

Compared with SN74LVC823APWR and 74LVC374PW,118, the 74LVC273BQ,115 uniquely provides dedicated asynchronous master reset in a compact 20-terminal DHVQFN package - making it optimal for space-constrained, reset-critical register applications where output tri-state is unnecessary.

Availability

74LVC273BQ,115 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics, communications baseband modules, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC273BQ,115 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LVC273 belongs to Nexperia's advanced LVC (Low-Voltage CMOS) logic family, engineered for robust mixed-voltage interoperability, low power consumption, and high noise immunity in demanding embedded control applications.

FAQ

Is the thermal pad on the 74LVC273BQ,115 package required to be soldered?

No - the exposed thermal pad (terminal 1 index area) has no electrical or mechanical requirement to be soldered. If connected, it must remain floating or tied to GND per layout guidelines. Soldering is optional and does not affect electrical functionality, though it may improve thermal performance in high-power-density designs.

Can the 74LVC273BQ,115 operate reliably with a 1.2 V supply and 5 V input signals?

Yes - the device is specified for 1.2 V to 3.6 V VCC and features overvoltage-tolerant inputs rated to 5.5 V. At 1.2 V supply, VIH is 1.08 V and VIL is 0.12 V, allowing safe interfacing with 5 V logic levels without damage or signal corruption, provided input current limits are observed.

What is the maximum clock frequency supported at 1.8 V supply?

At VCC = 1.65 V to 1.95 V, the maximum clock frequency is 80 MHz (−40 °C to +85 °C) or 64 MHz (−40 °C to +125 °C), as specified in Table 7. This is derived from tpd ≤ 19.2 ns (typical 9.7 ns) and tW ≥ 6.0 ns minimum pulse width, ensuring reliable edge-triggered operation within timing margins.

Does the 74LVC273BQ,115 support hot insertion or live insertion into a powered system?

No - the device is not hot-plug rated. Absolute maximum ratings specify VI = −0.5 V to +6.5 V only under static conditions; applying input signals before VCC stabilization risks latch-up or parametric shift. Power sequencing (VCC first, then inputs) is mandatory per Nexperia's application guidance.