Diodes Incorporated 74LVC1G04W5-7

Overview

74LVC1G04W5-7 from Diodes Incorporated is a single CMOS inverter gate with push-pull output, designed for 1.65V–5.5V supply operation and 5.5V-tolerant inputs. It delivers ±24mA output drive at 3.3V, supports partial power-down via IOFF, and operates across –40°C to +125°C. Used in voltage level shifting and logic signal inversion in portable computing peripherals.

For engineers reviewing the 74LVC1G04W5-7 datasheet, 74LVC1G04W5-7 pinout, 74LVC1G04W5-7 application, or 74LVC1G04W5-7 equivalent, key selection criteria include supply voltage range, IOFF-enabled isolation during power-down, output drive strength at 3.3V, and SOT25 package thermal resistance (θJA = 204°C/W).

Technical Context

This device implements a basic Boolean NOT function with rail-to-rail CMOS output swing and input thresholds scaled to VCC (e.g., VIH = 0.7×VCC at 4.5–5.5V). Its IOFF circuit actively disables output terminals when VCC = 0V, blocking reverse current flow-critical for hot-swap and mixed-voltage bus isolation.

Propagation delay is specified from 0.5ns (5V) to 7.5ns (1.8V) over temperature, with input transition rate tolerance up to 20 ns/V at 1.8V. Power dissipation capacitance is fixed at 16pF across all supply voltages, enabling predictable dynamic power estimation in high-speed toggle applications.

Key Specifications

Pinout & Package

SOT25 (3.0mm × 2.8mm × 1.2mm, 0.95mm lead pitch) surface-mount package with exposed pad not connected internally.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single inverter applications.

Compared with SN74LVC1G04DBVR, 74LVC1G04W5-7 offers identical logic functionality in a slightly larger SOT25 body with marginally better thermal resistance; versus 74AUP1G04GW, it trades ultra-low ICC for essential 5.5V input tolerance and IOFF-making it the only viable option for robust mixed-rail industrial interfaces.

Availability

74LVC1G04W5-7 is available at Aetrix Electronics and suitable for voltage level shifting, general-purpose logic inversion, and power-down signal isolation requiring stable component supply across industrial, computing, and consumer electronics programs.

Supply support for 74LVC1G04W5-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, industry-qualified components for power management, signal integrity, and protection applications.

The 74LVC logic family targets low-voltage, mixed-supply digital interfacing-designed specifically for seamless integration between legacy 5V systems and modern sub-3.3V processors, FPGAs, and peripherals.

FAQ

Can 74LVC1G04W5-7 operate reliably at 1.65V supply?

Yes. The device is fully characterized down to 1.65V: propagation delay remains ≤7.5ns (–40°C to +85°C), output drive meets ±4mA minimum, and input thresholds scale correctly (VIH = 0.65×VCC). All DC and AC parameters in the datasheet are guaranteed across this full range.

What is the purpose of the NC pin on the SOT25 package?

Pin 4 is internally unconnected and serves no electrical function. It may be left floating or tied to GND for mechanical reinforcement during reflow soldering. No current flows through it, and it does not affect timing, drive strength, or ESD performance.

Does IOFF protect against back-current when VCC is partially ramped?

Yes. IOFF activates when VCC drops below ~0.8V, disabling both output pull-up and pull-down transistors before VCC reaches 0V. This prevents current injection from driven outputs into the VCC rail during brown-out or asymmetric power sequencing-verified per JESD78 latch-up testing.

How does thermal resistance differ between SOT25 and DFN packages?

SOT25 has θJA = 204°C/W (FR-4, 2oz Cu), while X2-DFN0808-4 measures 400°C/W under identical conditions. The SOT25's larger copper exposure and leadframe design provide superior heat dissipation-critical for sustained 24mA output loading in compact enclosures.