Diodes Incorporated 74LVCE1G02FZ4-7

Overview

74LVCE1G02FZ4-7 from Diodes Incorporated is a single 2-input positive NOR gate in DFN1410 package, operating from 1.4V to 5.5V supply, with ±24mA output drive at 3.3V, 5.5V-tolerant inputs, and IOFF-enabled partial power-down protection. It serves as a level-shifting logic gate in mixed-voltage I/O interfaces of portable computing and consumer electronics.

For engineers reviewing the 74LVCE1G02FZ4-7 datasheet, 74LVCE1G02FZ4-7 pinout, 74LVCE1G02FZ4-7 application, or 74LVCE1G02FZ4-7 equivalent, key selection criteria include supply voltage flexibility (1.4–5.5V), 5.5V input tolerance, IOFF leakage <10μA, propagation delay ≤2.9ns at 3.3V/15pF, and DFN1410 thermal resistance (θJA = 430°C/W).

Technical Context

This NOR gate implements the Boolean function Y = A + B using CMOS totem-pole output architecture. Its IOFF circuit actively disables outputs during power-down to prevent backflow current, enabling safe hot-insertion in multi-rail systems.

Input thresholds scale with VCC (e.g., VIH = 0.65×VCC at 1.4–1.95V), supporting interoperability across 1.5V, 1.8V, 2.5V, 3.3V, and 5V logic families. ESD robustness exceeds 2kV HBM and 200V MM, and latch-up immunity meets JESD78 Class II (≥100mA).

Key Specifications

Pinout & Package

DFN1410 (1.4mm × 1.0mm, 0.5mm pitch) thermally enhanced leadless package with wettable flanks; pin 2 and pin 5 internally connected per datasheet Note 2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NOR gate applications.

Compared with SN74LVC1G02DBVR and 74AUP1G02GW,125, the 74LVCE1G02FZ4-7 uniquely combines 1.4V start-up, 5.5V input tolerance, and IOFF - making it the only option for robust level shifting in dynamically powered multi-rail systems.

Availability

74LVCE1G02FZ4-7 is available at Aetrix Electronics and suitable for USB peripheral design, smartphone baseband integration, industrial sensor hubs, and SSD controller buffering requiring stable component supply across automotive, industrial, and consumer programs.

Supply support for 74LVCE1G02FZ4-7 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, low-power solutions for computing, consumer, and industrial markets.

The 74LVCE logic family targets mixed-voltage system interfacing, emphasizing wide supply range, input tolerance, and power-aware features like IOFF for next-generation portable and embedded platforms.

FAQ

Can 74LVCE1G02FZ4-7 operate with VCC = 1.2V?

No. The recommended minimum operating voltage is 1.4V per DS32211 Rev. 2. At 1.2V, the device may retain stored state but does not guarantee functional logic operation, timing, or output drive. Data retention is specified only at 1.2V - not active operation.

What is the maximum capacitive load for guaranteed timing performance?

The switching characteristics table specifies tPD test conditions at CL = 15pF (Figure 1) and CL = 30/50pF (Figure 2). For guaranteed 2.9ns max propagation delay, load must not exceed 15pF. At 30pF, tPD increases to 3.6ns; at 50pF, it reaches 3.6ns at 3.3V.

Is pin 6 (NC) required to be grounded in the DFN1410 package?

No. Pin 6 is a no-connect terminal per datasheet marking diagram and package outline. Diodes Incorporated's AP02001 pad layout recommends leaving it unconnected or optionally tied to GND for mechanical stability - but it has no electrical function and must not be used as a thermal pad or ground path.

How does IOFF behave when VCC is ramping during power-up?

IOFF activates when VCC falls below ~0.8V and remains active until VCC exceeds ~1.0V, per characterization in partial power-down tests. During ramp-up, outputs stay in high-Z until VCC stabilizes above the functional threshold (~1.4V), preventing glitch generation on shared buses.