Nexperia USA Inc. 74LVC273PW,118

Overview

74LVC273PW,118 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 clock frequency at 3.0–3.6 V. It is used in bus interface buffering, address/data register staging, and level translation between 3.3 V and 5 V domains.

For engineers reviewing the 74LVC273PW,118 datasheet, 74LVC273PW,118 pinout, 74LVC273PW,118 application, or 74LVC273PW,118 equivalent, key selection criteria include its 20-pin TSSOP package, 1.2–3.6 V VCC range, Schmitt-trigger input tolerance, MR-controlled synchronous reset behavior, and guaranteed 1.0 ns minimum data setup time at 3.0–3.6 V.

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 the state of its Dn input on the LOW-to-HIGH transition of CP, provided setup and hold timing requirements are met. MR overrides clock and data, forcing all Qn outputs LOW regardless of CP or Dn states.

Inputs feature Schmitt-trigger action for noise immunity with slow-rising/falling signals, and overvoltage tolerance enables direct interfacing with 5 V TTL sources while powered from 1.65–3.6 V supplies. The architecture supports mixed-voltage system integration without external level shifters.

Key Specifications

Pinout & Package

TSSOP20 plastic thin shrink small outline package (SOT360-1); 20 leads; body width 4.4 mm; 0.65 mm pitch; exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC273PWR and 74AUP273GW,118, the 74LVC273PW,118 uniquely balances 1.2 V operation, 150 MHz capability, and 24 mA drive - making it optimal for cost-sensitive industrial controllers needing both flexibility and performance.

Availability

74LVC273PW,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller address latching, and legacy bus interface translation requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for 74LVC273PW,118 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 leading Dutch semiconductor manufacturer specializing in high-volume logic, analog, and discrete components, with focus on reliability, efficiency, and application-specific optimization.

The 74LVC series targets general-purpose, low-voltage CMOS logic applications demanding robust noise immunity, wide supply flexibility, and seamless integration into mixed-signal and mixed-voltage systems.

FAQ

What is the minimum VCC required for guaranteed operation of the 74LVC273PW,118?

The 74LVC273PW,118 is fully specified down to 1.2 V VCC, with functional operation confirmed across −40 °C to +125 °C at this voltage. At 1.2 V, maximum clock frequency is 18 ns propagation delay-limited (~55 MHz), and output drive is reduced; VIH is 1.08 V min, VIL is 0.12 V max.

Can the 74LVC273PW,118 safely interface with 5 V microcontroller GPIOs?

Yes - all inputs tolerate up to 5.5 V regardless of VCC, allowing direct connection to 5 V outputs without clamping diodes or resistors. However, outputs swing only to VCC (max 3.6 V), so 5 V receivers require pull-up or level-shifting if input thresholds exceed VCC.

Is the exposed pad on the TSSOP20 package electrically connected?

No - the exposed pad in SOT360-1 (TSSOP20) is a thermal enhancement feature only. Per Nexperia documentation, it has no electrical function; soldering it is optional and, if done, must remain floating or connect to GND to avoid unintended coupling or shorts.

How does the master reset (MR) interact with the clock (CP) input?

MR is asynchronous and dominant: when MR is LOW, all Qn outputs force LOW immediately, overriding any CP activity or Dn state. When MR returns HIGH, the next CP rising edge captures Dn values - no race condition occurs because MR deassertion does not trigger sampling; only CP does.