onsemi MC74VHC1GT08DFT2G

Overview

MC74VHC1GT08DFT2G from onsemi is a single 2-input CMOS AND gate in SC-88A (SOT-353) package, operating from 3.0 V to 5.5 V supply, with 3.5 ns typical propagation delay at 5 V, TTL-compatible inputs (VIH = 2.0 V, VIL = 0.8 V), and full-rail CMOS outputs (VOH > 0.8VCC, VOL < 0.1VCC). It serves as a logic-level translator between 1.8 V/3 V and 5 V domains in mixed-voltage digital interfaces.

For engineers reviewing the MC74VHC1GT08DFT2G datasheet, pinout, applications, or equivalent options, key selection criteria include input overvoltage tolerance up to 7 V independent of VCC, power-down protection on all I/Os, balanced tPLH/tPHL delays, and compatibility with standard logic families in space-constrained PCB layouts.

Technical Context

The MC74VHC1GT08DFT2G implements a three-stage CMOS structure with buffered output for high noise immunity and stable switching. Its input stage features silicon-gate CMOS with diode clamping and overvoltage-tolerant design, enabling safe interfacing between disparate voltage domains without external level-shifting components.

It supports operation across −55°C to +125°C, meets AEC-Q100 stress testing requirements (in NLV variants), and delivers rail-to-rail output swing while maintaining sub-1 µA quiescent ICC at 25°C - critical for low-power embedded control and battery-backed systems requiring robust signal integrity.

Key Specifications

Pinout & Package

MC74VHC1GT08DFT2G is housed in a 5-pin SC-88A (SOT-353) surface-mount package measuring 2.20 mm × 1.35 mm × 1.10 mm (L × W × H), with 0.65 mm lead pitch and Pb-free RoHS-compliant finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input AND gate applications.

Compared with SN74LVC1G08DBVR and 74AUP1G08GW,125, the MC74VHC1GT08DFT2G uniquely combines 7 V input tolerance, 3.5 ns speed at 5 V, and −55°C to +125°C operation - making it the only choice for ruggedized 5 V↔3 V logic bridging in harsh-environment control systems.

Availability

MC74VHC1GT08DFT2G is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and portable medical instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed Pb-free compliance.

Supply support for MC74VHC1GT08DFT2G 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The MC74VHC1GT08DFT2G belongs to the VHC (Very High Speed CMOS) logic family, engineered for high-speed, low-power digital interfacing in mixed-voltage embedded systems where reliability across wide temperature and supply ranges is mandatory.

FAQ

What is the maximum input voltage rating for MC74VHC1GT08DFT2G, and does it depend on VCC?

The MC74VHC1GT08DFT2G supports DC input voltages from −0.5 V to +7.0 V - independent of VCC. This means inputs can safely accept 5 V signals even when the device is powered from 3.3 V or 2.5 V, eliminating external clamping diodes. This overvoltage tolerance is confirmed in the Absolute Maximum Ratings table and applies across the full operating temperature range.

Can MC74VHC1GT08DFT2G operate with a 3.3 V supply while driving a 5 V logic load?

No - the MC74VHC1GT08DFT2G output swing is rail-to-rail relative to its own VCC. When powered from 3.3 V, VOH is >2.64 V and VOL is <0.33 V, which may not meet VIH requirements of standard 5 V TTL or CMOS loads. It functions as a *translator into* higher-voltage domains only when used with appropriate pull-up configurations or downstream level-sensitive receivers - not as a direct 3.3 V → 5 V driver.

Is MC74VHC1GT08DFT2G pin-compatible with other single-gate logic devices in SC-88A packages?

Yes - the MC74VHC1GT08DFT2G uses the standard 5-pin SC-88A (SOT-353) pinout (GND-INB-INA-VCC-OUT), matching industry-standard footprints for single-gate logic including SN74LVC1G08, 74AUP1G08, and NC7SZ08. Layout reuse is possible across these families, though electrical behavior (e.g., input tolerance, drive strength) differs and must be verified per application.

Does MC74VHC1GT08DFT2G support hot insertion or live-board replacement?

Yes - the MC74VHC1GT08DFT2G includes power-down protection on both inputs and outputs. When VCC = 0 V, all pins enter high-impedance states and tolerate input/output voltages up to ±0.5 V without damage or back-driving. This feature is explicitly validated per JEDEC JESD78 latch-up testing and supports safe hot-plug operation in modular industrial backplanes.

What is the thermal resistance (θJA) of MC74VHC1GT08DFT2G in its SC-88A package?

The MC74VHC1GT08DFT2G in SC-88A (Case 419A) has a junction-to-ambient thermal resistance (θJA) of 333°C/W under standard JEDEC test conditions (1-inch² copper pad, no airflow). This value is specified in the Maximum Ratings table and informs thermal design for continuous operation at elevated ambient temperatures or high switching frequencies.