Nexperia USA Inc. 74HC377PW,118

Overview

74HC377PW,118 from Nexperia is an octal positive-edge-triggered D-type flip-flop with data enable (active LOW), designed for synchronous data latching in digital logic systems. It operates across 2.0 V to 6.0 V supply, delivers 8-bit parallel storage with 16 ns typical propagation delay at 4.5 V, and supports industrial temperature range (−40 °C to +125 °C) in TSSOP20 package - used in bus interface buffering and state register staging.

For engineers reviewing the 74HC377PW,118 datasheet, 74HC377PW,118 pinout, 74HC377PW,118 application, or 74HC377PW,118 equivalent, key selection considerations include data enable timing margin (tsu = 12 ns, th = 3 ns at 4.5 V), output drive capability (±4 mA), CMOS-level input compatibility, and TSSOP20 thermal derating (10.0 mW/K above 100 °C).

Technical Context

This device implements eight independent D-type flip-flops sharing a common clock (CP) and global data enable (E) input. Each flip-flop captures Dn on the LOW-to-HIGH transition of CP only when E is LOW; outputs retain state when E is HIGH or CP is static. Input clamp diodes allow safe interfacing to voltages exceeding VCC using current-limiting resistors.

It conforms to JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), features 3.5 pF typical input capacitance, and exhibits latch-up immunity >100 mA per JESD78 Class II Level B. Static operation is guaranteed from −40 °C to +125 °C with VIH = 3.15 V (min) and VOL = 0.26 V (max) at VCC = 4.5 V, IO = 4 mA.

Key Specifications

Pinout & Package

TSSOP20 plastic thin shrink small outline package (SOT360-1), 20-pin, 4.4 mm body width, 0.65 mm pitch, exposed pad not present - optimized for automated assembly and moderate thermal dissipation in space-constrained boards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC377PW,118, the SO20 variant offers better heat spreading but larger footprint, while the PDIP version sacrifices extended temperature operation and latch-up robustness - making the TSSOP20 the optimal balance for modern industrial PCBs requiring density, reliability, and thermal margin.

Availability

74HC377PW,118 is available at Aetrix Electronics and suitable for industrial bus interface, digital control state register, memory address latching, and LED matrix column driver staging requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC377PW,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 semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with core expertise in automotive-qualified and industrial-grade standard logic families.

The 74HC377 belongs to Nexperia's HC-series high-speed CMOS logic portfolio, engineered for low-power, noise-immune digital interfacing in industrial automation, motor control, and embedded computing applications.

FAQ

Can 74HC377PW,118 operate reliably at 2.0 V supply?

Yes - it is fully specified from 2.0 V to 6.0 V per JEDEC JESD7A. At 2.0 V, propagation delay increases to 160 ns (max), VIH drops to 1.5 V (min), and output drive reduces to ±2.6 mA. All timing and DC parameters remain guaranteed across this range, enabling battery-powered or ultra-low-voltage logic staging.

Is the E (data enable) input internally debounced or filtered?

No - E is a purely combinational control input with no internal filtering. Its signal must be synchronized to the CP domain or externally debounced to avoid metastability-induced output glitches. The datasheet requires E to be stable ≥12 ns before CP rising edge for predictable behavior.

What is the maximum clock frequency supported at 125 °C ambient?

At −40 °C to +125 °C, fmax is 20 MHz (min) for VCC = 4.5 V and CL = 50 pF. This is derated from the 24 MHz (min) value at +85 °C due to increased propagation delay and reduced drive strength at elevated temperature - verified in Table 7's "−40 °C to +125 °C" column.

Does 74HC377PW,118 support hot insertion or live swapping?

No - it lacks hot-swap protection circuitry such as power-on reset, Ioff partial power-down, or bus-hold. Applying VCC while inputs are driven can cause excessive ICC or latch-up. Power sequencing (VCC before inputs) and board-level protection (series resistors, TVS) are mandatory for live-insertion scenarios.