Diodes Incorporated 74LVC1G00FS3-7

Overview

74LVC1G00FS3-7 from Diodes Incorporated is a single 2-input positive NAND gate in a 4-pin X2-DFN0808-4 package, operating from 1.65V to 5.5V supply, with 5.5V-tolerant inputs and ±24mA output drive at 3.3V. It supports partial power-down via IOFF, enabling safe signal isolation in mixed-voltage systems such as USB interface level-shifting and portable device power management.

For engineers reviewing the 74LVC1G00FS3-7 datasheet, 74LVC1G00FS3-7 pinout, 74LVC1G00FS3-7 application, or 74LVC1G00FS3-7 equivalent, key selection criteria include its ultra-small 0.8mm × 0.8mm footprint, guaranteed IOFF leakage <±10μA during power-down, propagation delay ≤4.7ns at 3.3V, and compatibility with 1.8V/2.5V/3.3V/5V logic families.

Technical Context

This device implements standard Boolean NAND logic (Y = A·B) with push-pull CMOS output stage and no internal pull-ups or pull-downs. Its IOFF circuit actively disables both output FETs when VCC = 0V, blocking current backflow from live buses into unpowered sections.

Input thresholds are voltage-ratio-based (VIH = 0.65×VCC for 1.65–1.95V operation), ensuring robust noise immunity across supply voltages. The design meets JESD22 ESD ratings of >2kV HBM, >2000V HBM, and >1000V CDM, and exceeds 100mA latch-up immunity per JESD78 Class I.

Key Specifications

Pinout & Package

X2-DFN0808-4 is a 0.8mm × 0.8mm × 0.35mm diamond-layout, bottom-terminal, lead-free chip-scale package with 0.5mm pad pitch and exposed thermal pad (not electrically connected). No thermal vias required for basic operation; recommended pad layout per Diodes Inc. outline DFN0808-4.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input NAND gate applications.

Compared with SN74LVC1G00DBVR and 74LVC1G00GW,125, the 74LVC1G00FS3-7 delivers the smallest PCB footprint (0.64mm²) and highest input voltage tolerance (5.5V), making it optimal for miniaturized, mixed-voltage embedded systems where space and interoperability are primary constraints.

Availability

74LVC1G00FS3-7 is available at Aetrix Electronics and suitable for USB interface design, portable power sequencing, and industrial I/O conditioning requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for 74LVC1G00FS3-7 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 focus on high-reliability, energy-efficient components for computing, industrial, and consumer markets.

The 74LVC logic family targets low-voltage, high-speed general-purpose digital interfacing, designed specifically for seamless integration across heterogeneous voltage domains in compact, power-sensitive applications.

FAQ

Can 74LVC1G00FS3-7 operate reliably at 1.65V supply?

Yes. The device is fully characterized down to 1.65V, with guaranteed propagation delay ≤8.0ns and output drive ≥4mA at that voltage. Input thresholds scale with VCC (VIH = 0.65×VCC), ensuring correct logic interpretation even at minimum supply.

Is the NC pin on the X2-DFN0808-4 package electrically connected?

No. The X2-DFN0808-4 variant has only four functional terminals (A, B, Y, GND); there is no NC pin. The package drawing shows four pads arranged in diamond configuration - A (1), GND (2), Y (3), B (4) - with no fifth or sixth terminal.

What is the maximum capacitive load this gate can drive without exceeding timing specs?

At 3.3V, the gate maintains tPD ≤4.7ns driving up to 50pF (per Figure 1 test condition). With 30pF load and 500Ω termination, typical tPD is 2.2ns. For loads >50pF, propagation delay increases linearly; derating curves are provided in Section 5 of DS32196 Rev. 11-2.

Does IOFF protect against reverse current when only one supply rail is active in a dual-supply system?

Yes. IOFF activates whenever VCC is near 0V, regardless of input/output voltage. If VCC = 0V and A/B = 5V, the output Y is high-impedance and draws <±10μA, preventing current flow from A/B into GND or from Y into other powered circuits.