Texas Instruments SN74LV02ANS

Overview

SN74LV02ANS from Texas Instruments is a quadruple 2-input positive-NOR gate logic IC operating across 2-V to 5.5-V V_CC, with 6.5 ns max propagation delay at 5 V, I_off support for partial-power-down mode, and ±25 mA output drive capability. It performs Y = A + B (positive-logic NOR) and is used in level-shifting bus interfaces, enable/control logic in mixed-voltage systems, and noise-immune digital signal conditioning.

For engineers reviewing the SN74LV02ANS datasheet, SN74LV02ANS pinout, SN74LV02ANS application, or SN74LV02ANS equivalent, key selection considerations include its 14-pin SO (NS) package, 2–5.5 V mixed-mode voltage compatibility, I_off isolation behavior, ground-bounce/undershoot performance, and JEDEC-standard latch-up immunity.

Technical Context

This device implements four independent 2-input NOR gates in a single monolithic CMOS structure, with input thresholds scaled to V_CC × 0.3 (low) and V_CC × 0.7 (high) across all supply voltages. Each gate features totem-pole outputs and no internal pull-ups or open-drain configuration.

The I_off circuitry actively disables outputs when V_CC = 0 V, blocking reverse current flow up to ±5.5 V on inputs/outputs - critical for hot-swap and power sequencing in multi-rail systems. ESD protection exceeds 2000-V HBM, 200-V MM, and 1000-V CDM per JESD22.

Key Specifications

Pinout & Package

SN74LV02ANS uses a 14-pin small-outline (SO) package per JEDEC MS-012 (NS drawing), 5.3 mm body width, 1.75 mm height, with gull-wing leads and standard 1.27 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LV02ANS, SN74LVC2G02DCKR offers higher drive and smaller footprint but sacrifices mixed-voltage operation and I_off; 74AUP2G02GM,125 delivers lowest quiescent power but cannot interface with 5 V systems or support partial-power-down.

Availability

SN74LV02ANS is available at Aetrix Electronics and suitable for industrial control logic, automotive body electronics, communications backplane interfaces, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74LV02ANS 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

Texas Instruments is a U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.

The SN74LV02ANS belongs to TI's LV family of low-voltage logic ICs, designed specifically for robust mixed-signal interfacing in systems with heterogeneous voltage domains and stringent reliability requirements.

FAQ

What is the maximum operating voltage for SN74LV02ANS?

The SN74LV02ANS supports a V_CC range of 2 V to 5.5 V, with absolute maximum rating of 7 V. Operation above 5.5 V violates recommended conditions and risks parametric degradation or damage. At 5.5 V, output drive remains ±12 mA with V_OH ≥ 4.3 V and V_OL ≤ 0.55 V per datasheet specifications.

Does SN74LV02ANS support partial-power-down mode?

Yes, SN74LV02ANS includes I_off circuitry that disables outputs and limits leakage to ≤5 μA when V_CC = 0 V. This feature prevents damaging current backflow from live inputs into a powered-down device - critical for hot-swap and multi-rail power sequencing applications.

What is the pinout configuration of SN74LV02ANS?

SN74LV02ANS uses a 14-pin SO (NS) package with standard pinout: Pin 1 = 1A, Pin 2 = 1B, Pin 3 = 1Y, Pin 4 = 2A, Pin 5 = 2B, Pin 6 = 2Y, Pin 7 = GND, Pin 8 = 3B, Pin 9 = 3A, Pin 10 = 3Y, Pin 11 = 4B, Pin 12 = 4A, Pin 13 = 4Y, Pin 14 = V_CC. No NC pins are present.

Can SN74LV02ANS interface between 3.3 V and 5 V logic systems?

Yes, SN74LV02ANS supports true mixed-mode operation: inputs accept 0–5.5 V regardless of V_CC, and outputs swing rail-to-rail. With V_CC = 3.3 V, it reliably drives 5 V-tolerant inputs; with V_CC = 5 V, it accepts 3.3 V logic levels as valid high (VIH ≥ 3.5 V at 5 V).

What is the typical propagation delay of SN74LV02ANS at 3.3 V?

At V_CC = 3.3 V, C_L = 50 pF, and T_A = 25°C, the typical propagation delay (t_pd) of SN74LV02ANS is 7.6 ns, with a maximum of 13 ns. This value is measured from input transition (50% V_CC) to output transition (50% V_CC) under specified load conditions.