Texas Instruments SN74LVC1G07QDCKTQ1

Overview

SN74LVC1G07QDCKTQ1 from Texas Instruments is an automotive-grade single-channel open-drain buffer/driver designed for level translation and wired-OR logic functions. It operates from 1.65 V to 5.5 V, delivers ±24 mA output drive at 3.3 V, achieves 5.7 ns max propagation delay at 3.3 V, and supports partial-power-down via Ioff. It is used in automotive body control modules and ADAS camera interfaces where robust 5.5 V-tolerant inputs and high-sink capability are required.

For engineers reviewing the SN74LVC1G07QDCKTQ1 datasheet, SN74LVC1G07QDCKTQ1 pinout, SN74LVC1G07QDCKTQ1 application, or SN74LVC1G07QDCKTQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), 32 mA maximum sink current, 5.5 V input tolerance, Ioff-enabled power-down isolation, and SC70-5 package compatibility with space-constrained automotive PCB layouts.

Technical Context

The SN74LVC1G07QDCKTQ1 implements a noninverting open-drain buffer with no internal pull-up, requiring external termination for logic-high assertion. Its Ioff circuitry actively disables outputs when VCC = 0 V, blocking reverse current flow up to 5.5 V on I/O pins - critical for hot-swap and multi-rail system interoperability.

It supports bidirectional voltage translation: inputs tolerate 0–5.5 V regardless of VCC (1.65–5.5 V), enabling interfacing between 1.8 V, 2.5 V, 3.3 V, and 5 V domains. Propagation delay varies from 1.5 ns (min) to 5.7 ns (max) at 3.3 V, with input transition rate sensitivity specified down to 5 ns/V at 5 V.

Key Specifications

Pinout & Package

SN74LVC1G07QDCKTQ1 uses the SC70-5 (DCK) package: 2.00 mm × 2.10 mm footprint, 1.25 mm body width, 1.1 mm max height, 5-pin single-row layout with pin 1 in quadrant Q3 per tape-and-reel standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar open-drain buffer applications.

Compared with SN74LVC1G07QDCKTQ1, the DRY variant offers smallest area but tighter assembly constraints, while the DBV variant trades size for thermal headroom and process familiarity - choice depends on PCB real estate, thermal budget, and manufacturing capability.

Availability

SN74LVC1G07QDCKTQ1 is available at Aetrix Electronics and suitable for automotive body control, ADAS camera fusion, infotainment I²C expansion, and HEV powertrain sensor interface applications requiring stable component supply across extended temperature and AEC-Q100-compliant production cycles.

Supply support for SN74LVC1G07QDCKTQ1 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 automotive ICs, with decades of automotive qualification expertise and broad AEC-Q100 portfolio coverage.

The SN74LVC1G07-Q1 product line delivers single-gate logic solutions optimized for automotive signal conditioning, level translation, and wired-OR bus interfacing - targeting cost-sensitive, space-constrained, and thermally demanding vehicle subsystems.

FAQ

What is the maximum sink current specification for SN74LVC1G07QDCKTQ1?

The SN74LVC1G07QDCKTQ1 supports a maximum sink current of 32 mA when VCC = 4.5 V, as specified in the Recommended Operating Conditions table. This value is validated across the full –40°C to +125°C temperature range and enables direct driving of LEDs, small relays, or multiple CMOS inputs in wired-OR configurations without external amplification. The device maintains this rating under worst-case voltage and thermal conditions defined by AEC-Q100 Grade 1.

Does SN74LVC1G07QDCKTQ1 support level translation between different voltage domains?

Yes, SN74LVC1G07QDCKTQ1 supports bidirectional level translation: its inputs accept voltages from 0 V to 5.5 V independent of VCC (1.65 V to 5.5 V), allowing it to interface a 5 V sensor output to a 3.3 V microcontroller input, or a 1.8 V FPGA output to a 5 V bus. The open-drain output requires an external pull-up to the target domain's rail, completing the translation path with no additional components.

How does the Ioff feature function in SN74LVC1G07QDCKTQ1 during power-down sequences?

The Ioff feature in SN74LVC1G07QDCKTQ1 disables output drivers and isolates I/O pins when VCC = 0 V, limiting leakage current to ±10 μA maximum even if inputs or outputs are biased at up to 5.5 V. This prevents damaging back-current flow from live system rails into a powered-down subsystem - a critical requirement for automotive domain controllers that undergo independent power cycling while other modules remain active.

What package type and dimensions does SN74LVC1G07QDCKTQ1 use?

SN74LVC1G07QDCKTQ1 uses the SC70-5 (DCK) package: nominal body size 2.00 mm × 1.25 mm, overall footprint 2.00 mm × 2.10 mm, maximum height 1.1 mm, and 5-pin single-row configuration with pin 1 located in quadrant Q3 per JEDEC tape-and-reel standards. This compact outline supports high-density automotive PCB layouts while maintaining manufacturability with standard surface-mount processes.

Is SN74LVC1G07QDCKTQ1 qualified for automotive safety-critical systems?

SN74LVC1G07QDCKTQ1 is AEC-Q100 qualified for automotive applications (Grade 1: –40°C to +125°C ambient) and includes HBM ±2000 V and CDM ±1000 V ESD ratings, but it is not ISO 26262 ASIL-certified. It is intended for non-safety-critical signal conditioning roles - such as LED driving, interrupt aggregation, and I²C bus extension - within ASIL-B or ASIL-C systems, where system-level fault mitigation is implemented externally per functional safety architecture.