Texas Instruments SN74LVC1G02MDCKREP

Overview

SN74LVC1G02MDCKREP from Texas Instruments is a single 2-input positive-NOR gate logic IC designed for 1.65-V to 5.5-V V_CC operation, delivering 3.6 ns max propagation delay at 3.3 V, ±24-mA output drive, 10-µA max ICC, and I_off support for partial-power-down mode. It performs Y = A + B in positive logic and is used in level-shifting, signal inversion, and enable/disable control in space-constrained industrial and aerospace systems.

For engineers reviewing the SN74LVC1G02MDCKREP datasheet, SN74LVC1G02MDCKREP pinout, SN74LVC1G02MDCKREP application, or SN74LVC1G02MDCKREP equivalent, key selection criteria include its SC-70 (DCK) 5-pin package, –55°C to 125°C extended temperature range, I_off protection, 5.5-V tolerant inputs, and compatibility with mixed-voltage logic interfaces.

Technical Context

This device implements a single 2-input NOR gate using LVC CMOS technology, supporting rail-to-rail input voltage tolerance up to 5.5 V independent of V_CC. Its I_off circuitry actively disables outputs during power-down to prevent backflow current, enabling safe hot-insertion in multi-rail systems.

Propagation delay is characterized across V_CC from 1.65 V to 5.5 V, with typical t_pd of 1 ns at 3.3 V (CL = 30 pF). Output drive strength scales with supply voltage: ±24 mA at 3.3 V, ±32 mA at 4.5 V, and supports standard LVTTL/LVCMOS logic families.

Key Specifications

Pinout & Package

SN74LVC1G02MDCKREP uses the SC-70 (DCK) 5-pin surface-mount package (1.25 mm × 2.1 mm, 1.1 mm max height), optimized for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G02MDBVREP, the SN74LVC1G02MDCKREP offers superior thermal performance and smaller footprint, while SN74AUP1G02DBVR trades speed and voltage range for extreme low-power operation - making each suitable for distinct thermal, size, or energy-constrained design priorities.

Availability

SN74LVC1G02MDCKREP is available at Aetrix Electronics and suitable for industrial automation, aerospace avionics, and medical imaging systems requiring stable component supply across extended temperature and long product lifecycles.

Supply support for SN74LVC1G02MDCKREP 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 global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of heritage in high-reliability and extended-temperature components.

The SN74LVC1G02MDCKREP belongs to TI's enhanced-product (EP) logic family, engineered specifically for mission-critical applications demanding guaranteed performance from –55°C to 125°C, controlled manufacturing baseline, and full DMS qualification.

FAQ

What is the maximum operating voltage for inputs on the SN74LVC1G02MDCKREP?

The SN74LVC1G02MDCKREP supports input voltages up to 5.5 V regardless of V_CC level, enabling direct interfacing with higher-voltage signals without external level-shifting circuitry. This specification is guaranteed across the full –55°C to 125°C temperature range and applies to both A and B inputs. The absolute maximum rating for VI is 6.5 V, but functional operation is specified only to 5.5 V per the recommended operating conditions table in the official datasheet.

Does the SN74LVC1G02MDCKREP support partial-power-down operation?

Yes, the SN74LVC1G02MDCKREP includes I_off circuitry that disables outputs when V_CC = 0, limiting leakage current to ±10 µA. This feature prevents damaging current backflow through the device during partial-power-down states, making it suitable for hot-swap, modular power, and multi-rail systems where subsystems power up/down independently. The I_off behavior is fully characterized and guaranteed over the extended temperature range.

What is the propagation delay of the SN74LVC1G02MDCKREP at 3.3 V?

The SN74LVC1G02MDCKREP has a maximum propagation delay (t_pd) of 3.6 ns at V_CC = 3.3 V with CL = 30 pF, and a typical value of 1.0 ns under the same conditions. This delay is measured between input transition (1.65 V threshold) and output crossing 50% of V_CC, and remains stable across the full operating temperature range. The low t_pd enables use in high-speed control paths such as clock gating and real-time fault response circuits.

Which package type does the SN74LVC1G02MDCKREP use, and what are its key mechanical dimensions?

The SN74LVC1G02MDCKREP uses the SC-70 (DCK) package: a 5-pin, surface-mount, leadless plastic package measuring 1.25 mm × 2.1 mm with a maximum height of 1.1 mm. Its land pattern follows JEDEC MO-203 standards, with 0.65-mm pitch, 0.33-mm pad width, and Q3 pin 1 quadrant orientation. The DCK package employs NanoFree™ technology, eliminating package substrate to reduce thermal resistance (θ_JA = 252°C/W) and parasitic inductance.

Can the SN74LVC1G02MDCKREP be used in 5-V logic systems?

Yes, the SN74LVC1G02MDCKREP supports V_CC up to 5.5 V and accepts input voltages up to 5.5 V, making it fully compatible with 5-V TTL and CMOS logic families. At V_CC = 5 V, it delivers VOH ≥ 4.4 V and VOL ≤ 0.6 V with 32-mA drive strength, meeting standard 5-V logic thresholds. Its 5.5-V input tolerance allows direct connection to 5-V signals even when powered from lower supplies like 3.3 V or 2.5 V - a key advantage in mixed-voltage system design.