Diodes Incorporated 74LVC1G04FX4-7

Overview

74LVC1G04FX4-7 from Diodes Incorporated is a single CMOS inverter gate with push-pull output, designed for 1.65V–5.5V operation and 5.5V-tolerant inputs. It supports partial power-down via IOFF circuitry, delivers ±24mA drive at 3.3V, and features ESD protection exceeding 2kV HBM. It is used in voltage level shifting and signal inversion within compact portable electronics.

For engineers reviewing the 74LVC1G04FX4-7 datasheet, 74LVC1G04FX4-7 pinout, 74LVC1G04FX4-7 application, or 74LVC1G04FX4-7 equivalent, key selection criteria include supply voltage range, IOFF-enabled isolation during power sequencing, thermal resistance (θJA = 470°C/W), and compatibility with mixed-voltage I/O domains in space-constrained designs.

Technical Context

This device implements a standard positive-logic inverter function (Y = A̅) with rail-to-rail CMOS output swing. Its IOFF circuit actively disables output leakage when VCC = 0V, enabling safe back-drive prevention in partial-power-down systems.

Input thresholds scale with VCC (e.g., VIH ≥ 0.7×VCC at 4.5–5.5V), ensuring TTL-level compatibility across supply voltages. Propagation delay is 0.5–5.5ns (3.3V, TA ≤ +125°C), and input capacitance is 5pF - critical for high-speed, low-loading signal conditioning.

Key Specifications

Pinout & Package

X2-DFN1409-6 is a 0.4mm-thick, 1.4mm × 0.9mm chip-scale package with 6 terminals and 0.5mm pad pitch. Pin 1 (A) is marked by a circular fiducial; pins are arranged in a staggered 3×2 layout with two no-connect (NC) terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G04DBVR and 74LVC1G04FS3-7, the 74LVC1G04FX4-7 offers unique NC pins for debug/test access in ultra-compact layouts, while its X2-DFN1409-6 package balances size (1.4mm × 0.9mm) and thermal margin (470°C/W) better than the 0.8mm² DFN but worse than SOT-23.

Availability

74LVC1G04FX4-7 is available at Aetrix Electronics and suitable for USB OTG implementations, SSD power sequencing, and IoT sensor node wake-up circuits requiring stable component supply, long-term lifecycle support, and consistent tape-and-reel delivery.

Supply support for 74LVC1G04FX4-7 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 semiconductor company specializing in discrete, analog, and logic solutions, with design centers in Asia, Europe, and the US, and manufacturing in Taiwan and China.

The 74LVC logic family targets low-voltage, high-speed general-purpose digital interfaces, emphasizing wide supply range, IOFF capability, and mixed-voltage interoperability for portable and embedded systems.

FAQ

Can 74LVC1G04FX4-7 operate reliably at 1.65V supply?

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

What is the purpose of the two NC pins in the X2-DFN1409-6 package?

The two NC pins are unconnected die pads with no internal bonding. They serve as mechanical anchors and thermal relief points, and may be used for probe access or routing flexibility during PCB layout. Per datasheet guidance, they must remain unconnected to avoid parasitic coupling or reliability risk.

Does IOFF functionality require external biasing or control signals?

No. IOFF is fully automatic and requires no external configuration. When VCC drops to 0V (or near 0V), internal circuitry detects the condition and forces the output into a high-impedance state with leakage limited to ±10μA - no pull-up/down resistors or enable pins are needed.

How does thermal performance of X2-DFN1409-6 compare to other 74LVC1G04 packages?

X2-DFN1409-6 has θJA = 470°C/W - higher than SOT25 (204°C/W) due to reduced copper area, but lower than X2-DFN0808-4 (400°C/W) because of its larger 1.4mm × 0.9mm body. For continuous 24mA output, derating is required above +85°C ambient unless PCB copper is enhanced per Diodes' recommended pad layout.