Nexperia USA Inc. 74LVC377PW,118

Overview

74LVC377PW,118 from Nexperia is an octal positive-edge-triggered D-type flip-flop with data enable (E) input, designed for synchronous data latching in digital logic systems. It operates across 1.2 V to 3.6 V supply, supports 5.5 V overvoltage-tolerant inputs, delivers 24 mA output drive at 3.0 V, and functions reliably from –40 °C to +125 °C - enabling use in industrial control bus interfaces and mixed-voltage I/O translation.

For engineers reviewing the 74LVC377PW,118 datasheet, 74LVC377PW,118 pinout, 74LVC377PW,118 application, or 74LVC377PW,118 equivalent, key selection criteria include its 1.2–3.6 V supply range, 2.0 ns minimum set-up time at 3.3 V, 9.5 ns max propagation delay, 150 MHz max clock frequency, and TSSOP20 package compatibility with high-density PCB layouts.

Technical Context

This device implements eight independent D-type flip-flops sharing a common clock (CP) and active-low data enable (E). When E is LOW, each Qn output captures the corresponding Dn input on the LOW-to-HIGH CP edge, provided setup/hold timing is met. Input stability requirements mandate E be stable one setup time before the CP transition.

Its CMOS architecture enables direct interfacing with both 3.3 V and 5 V TTL-level sources due to overvoltage-tolerant inputs (up to 5.5 V), while output drive capability supports 50 Ω transmission lines at 125 °C - making it suitable for noise-resilient data capture in mixed-supply systems.

Key Specifications

Pinout & Package

TSSOP20 (SOT360-1) package: 20-pin plastic thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC377APWR, the 74LVC377PW,118 offers lower static current and identical timing, while the 74LVCH377PW,118 adds automotive qualification and improved ESD at higher cost - making the base LVC variant optimal for industrial control where qualification overhead is unnecessary.

Availability

74LVC377PW,118 is available at Aetrix Electronics and suitable for industrial PLCs, microcontroller peripheral expansion, mixed-voltage I/O bridging, and real-time control signal conditioning requiring stable component supply across extended temperature ranges.

Supply support for 74LVC377PW,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-performance, energy-efficient logic, analog, and discrete components for industrial, automotive, and consumer markets.

The 74LVC377 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for robust mixed-voltage interoperability and high-speed operation in space-constrained industrial control and embedded systems.

FAQ

What is the minimum setup time for D inputs relative to the CP rising edge at 3.3 V?

At VCC = 3.0 V to 3.6 V and –40 °C to +125 °C, the guaranteed minimum setup time (tsu) is 2.0 ns. This value is measured with Dn stable 2.0 ns before the LOW-to-HIGH CP transition, ensuring reliable data capture without metastability under worst-case conditions.

Can the 74LVC377PW,118 safely interface with 5 V TTL outputs?

Yes - its inputs are overvoltage tolerant up to 5.5 V, allowing direct connection to 5 V TTL outputs without external level shifters. The device operates from 1.2 V to 3.6 V, so output logic levels will conform to its VCC (e.g., VOH ≈ 2.2 V at 3.0 V supply), requiring receiver compatibility with those levels.

Does the data enable (E) input affect propagation delay timing?

No - propagation delay (tpd) is defined from CP to Qn and remains unchanged regardless of E state. However, when E is HIGH, outputs retain their last latched state (NC mode); only when E is LOW does the rising CP edge cause Qn to reflect Dn, per the function table.

What is the maximum allowable output load capacitance for stable 150 MHz operation?

For reliable 150 MHz operation at VCC = 3.3 V, the recommended output load capacitance is ≤50 pF, as specified in Table 9 test conditions. Exceeding this increases propagation delay and skew, potentially violating setup/hold windows in high-speed synchronous systems.