Nexperia USA Inc. 74LVC377DB,118

Overview

74LVC377DB,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, accepts 5.5 V-tolerant inputs, and delivers 24 mA output drive at 3.0 V - enabling direct interface between 3.3 V and 5 V domains in industrial control bus interfaces.

For engineers reviewing the 74LVC377DB,118 datasheet, 74LVC377DB,118 pinout, 74LVC377DB,118 application, or 74LVC377DB,118 equivalent, key selection criteria include its 1.2–3.6 V supply range, 9.5 ns max propagation delay at 3.6 V/125 °C, ±24 mA output drive, 120 MHz max clock frequency at 125 °C, and SO20 (SOT163-1) package compatibility with legacy PCB footprints.

Technical Context

This device implements eight independent D-type flip-flops sharing a common clock (CP) and active-low data enable (E). Each flip-flop captures Dn on the LOW-to-HIGH CP transition only when E is LOW - enabling synchronized parallel data capture with gated clocking behavior.

Its overvoltage-tolerant inputs (up to 5.5 V) and CMOS low-power architecture allow safe interfacing with 5 V TTL outputs while powered from 1.8 V or 3.3 V rails. The device meets JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36 across its full voltage range.

Key Specifications

Pinout & Package

74LVC377DB,118 is supplied in SO20 (SOT163-1) plastic small outline package: 20-pin, 7.5 mm body width, 1.27 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 applications.

Compared with SN74LVC377APWR, the 74LVC377DB,118 offers superior thermal dissipation in SO20 due to larger copper exposure, while 74LVCH16374ADGG adds bus-hold and 3-state capability at the cost of pin count and layout complexity - making the 74LVC377DB,118 optimal for fixed 8-bit, high-reliability latching in thermally demanding environments.

Availability

74LVC377DB,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, test equipment digital pattern generation, and industrial motor drive interface applications requiring stable component supply across extended temperature ranges.

Supply support for 74LVC377DB,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, discrete, and MOSFET devices for industrial, automotive, and computing markets.

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

FAQ

What is the maximum clock frequency supported by 74LVC377DB,118 at 125 °C?

The 74LVC377DB,118 supports up to 120 MHz maximum clock frequency at VCC = 3.6 V and Tamb = 125 °C, as specified in Table 7 of the Rev. 8 datasheet. This value is measured with 50 pF load and 500 Ω termination, and accounts for worst-case process, voltage, and temperature corners.

Can 74LVC377DB,118 safely interface with 5 V TTL outputs while powered at 1.8 V?

Yes - its inputs are overvoltage tolerant up to 5.5 V regardless of VCC level, allowing direct connection to 5 V TTL outputs even when VCC = 1.8 V. No external level-shifting circuitry is required, and VIH/VIL thresholds scale correctly per Table 6.

Does 74LVC377DB,118 require external pull-up or pull-down resistors on unused inputs?

No - unused inputs should be tied HIGH or LOW using solid connections (not floating), but external resistors are not required. The device has no internal bus-hold or weak pull-ups; leaving inputs unconnected risks noise-induced switching and increased ICC.

What is the output skew specification between Q0 and Q7 under worst-case conditions?

The output skew (tsk(o)) between any two outputs is guaranteed ≤ 1.5 ns at VCC = 3.6 V and Tamb = 125 °C, as stated in Table 7. This applies to Q0–Q7 under identical loading and switching direction, and is ensured by design - not just typical characterization.