Nexperia USA Inc. 74LVC30ADJ

Overview

74LVC30ADJ from Nexperia is an 8-input NAND gate in SO14 package, designed for logic-level translation and signal conditioning in mixed-voltage systems. It operates from 1.2 V to 3.6 V supply, accepts inputs up to 5.5 V, features Schmitt-trigger inputs for noise immunity, supports IOFF partial power-down, and is rated for -40 °C to +125 °C ambient operation - used in industrial control backplanes and FPGA I/O expansion interfaces.

For engineers reviewing the 74LVC30ADJ datasheet, 74LVC30ADJ pinout, 74LVC30ADJ application, or 74LVC30ADJ equivalent, key selection criteria include input voltage tolerance (up to 5.5 V), IOFF-enabled hot-swap capability, propagation delay under 6.8 ns at 3.3 V, Schmitt-trigger hysteresis for slow-edge signals, and SO14 thermal derating behavior above 70 °C.

Technical Context

This device implements a single 8-input CMOS NAND function with rail-to-rail output swing and input clamping diodes enabling 5 V-tolerant operation on all eight inputs while powered from 1.2–3.6 V. The IOFF circuit actively disables outputs during power-down, blocking reverse current flow between powered and unpowered sections of a board.

Schmitt-trigger inputs provide 0.35 × VCC typical hysteresis, allowing reliable operation with slow-rising or noisy signals common in sensor interfacing or legacy TTL bus stubs. Static drive strength is specified at ±24 mA output current with VOL ≤ 0.55 V and VOH ≥ 2.2 V at VCC = 3.0 V and IO = ±24 mA.

Key Specifications

Pinout & Package

74LVC30ADJ uses the SO14 (SOT108-1) plastic small outline package: 14-lead, 3.9 mm body width, 1.27 mm lead pitch, and standard JEDEC MO-118 footprint. Thermal derating begins at 70 °C (8 mW/K).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-input NAND gate applications.

Compared with SN74LVC30APW and 74LVC30ABQ, the 74LVC30ADJ offers lowest assembly risk in standard SMT lines, widest availability in SO14 tape-and-reel, and most straightforward thermal design for non-automotive industrial use - making it optimal for cost-sensitive, high-volume control boards.

Availability

74LVC30ADJ is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA I/O expansion interfaces, automotive body control modules, and test equipment signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC30ADJ 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 global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in high-volume applications.

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

FAQ

Can 74LVC30ADJ operate reliably at 1.2 V supply?

Yes. The device is fully characterized down to 1.2 V supply, with propagation delay ≤13.2 ns and guaranteed logic thresholds (VIH ≥ 1.08 V, VIL ≤ 0.12 V) at that voltage. All static and dynamic parameters meet specification across the full -40 °C to +125 °C range at 1.2 V, making it suitable for ultra-low-power battery-backed systems.

What is the purpose of the n.c. pins (9, 10, 13)?

Pins 9, 10, and 13 have no internal connection and serve only mechanical or package-integrity roles. They must remain unconnected or be tied to GND - never driven or pulled to VCC. Leaving them floating does not affect functionality, but grounding improves EMI shielding and reduces potential antenna effects on high-density boards.

How does IOFF protect the device during partial power-down?

When VCC drops below ~0.8 V, the IOFF circuit automatically disables all output drivers and isolates input structures, limiting leakage current to ±10 μA maximum. This prevents reverse current flow from powered downstream logic into the unpowered 74LVC30ADJ, eliminating risk of latch-up or thermal overstress during hot-swap events.

Is the SO14 package RoHS-compliant and lead-free?

Yes. The 74LVC30ADJ in SO14 (SOT108-1) package is manufactured using lead-free solderable terminations and complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The package material is halogen-free epoxy molding compound, certified to IPC-4101D/126 specification.