onsemi MC74VHC1G01DFT1

Overview

MC74VHC1G01DFT1 from onsemi is a single 2-input NAND gate with open-drain output in SC-88A (SOT-353) package, designed for level-shifting and wired-AND logic applications across 2.0 V to 5.5 V supply rails. It features CMOS-level input thresholds, 3.5 ns typical propagation delay at 5 V, ±8 mA output drive at 3.0 V, and over-voltage tolerant inputs/outputs up to 5.5 V - enabling robust 3 V/5 V mixed-supply interfacing in automotive body control modules.

For engineers reviewing the MC74VHC1G01DFT1 datasheet, pinout, applications, or equivalent options, key selection criteria include open-drain output compatibility with I²C pull-up networks, IOFF partial power-down protection for hot-swap systems, AEC-Q100 qualification for automotive use, and SC-88A footprint constraints in space-constrained PCB layouts.

Technical Context

This device implements standard NAND logic with active-low open-drain output, requiring external pull-up for high-state assertion. Its input structure tolerates voltages up to 5.5 V independent of VCC, supporting bidirectional voltage translation between 3.3 V microcontrollers and 5 V peripherals without level shifters.

The IOFF feature disables input/output leakage when VCC = 0 V, preventing back-powering of powered-down domains. Propagation delays are specified across −55 °C to +125 °C and VCC = 2.0–5.5 V, with tPZL/tPLZ asymmetry reflecting open-drain rise/fall timing behavior under capacitive loading.

Key Specifications

Pinout & Package

SC-88A (SOT-353) package: 2.0 mm × 1.25 mm × 0.95 mm body, 0.65 mm pitch, gull-wing leads, RoHS-compliant Pb-free finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NAND gate applications.

Compared with SN74LVC1G01DBVR and 74AUP1G01GW,125, the MC74VHC1G01DFT1 uniquely combines 5.5 V overvoltage tolerance, AEC-Q100 qualification, and open-drain output in SC-88A - making it the only option for automotive-grade mixed-voltage logic interfacing with thermal and reliability assurance.

Availability

MC74VHC1G01DFT1 is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC input modules, hot-swappable sensor interfaces, and I²C bus level-shifting applications requiring stable component supply across extended temperature and long lifecycle programs.

Supply support for MC74VHC1G01DFT1 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 focused on energy-efficient electronics for automotive, industrial, cloud, medical, and IoT applications.

The MC74VHC1G01DFT1 belongs to the VHC logic family - engineered for high-speed, low-power, mixed-voltage interoperability in harsh-environment automotive and industrial control systems.

FAQ

What is the maximum input voltage rating for MC74VHC1G01DFT1 when VCC = 2.0 V?

The MC74VHC1G01DFT1 supports DC input voltages up to 5.5 V regardless of VCC level, including at 2.0 V supply. This overvoltage tolerance is achieved via dedicated input protection structures and allows safe interfacing with 5 V signals without external clamping components. The absolute maximum VIN rating remains −0.5 V to +6.5 V per the datasheet's Maximum Ratings table.

Does MC74VHC1G01DFT1 support true bidirectional level shifting like a dedicated translator IC?

No, the MC74VHC1G01DFT1 does not provide true bidirectional level shifting. It is a unidirectional 2-input NAND gate with open-drain output. While its overvoltage-tolerant inputs allow 5 V signals to drive the gate when VCC = 3.3 V, the output can only sink current and requires an external pull-up to a specific rail - limiting it to wired-AND or active-low enable functions, not automatic voltage domain translation in both directions.

Is MC74VHC1G01DFT1 pin-compatible with MC74VHC1GT01DFT1?

No, MC74VHC1G01DFT1 is not pin-compatible with MC74VHC1GT01DFT1 in terms of functional behavior, though both share identical SC-88A pinout and package. The MC74VHC1G01DFT1 uses CMOS-level input thresholds (VIH = 1.5 V @ 2.0 V), while MC74VHC1GT01DFT1 uses TTL-level thresholds (VIH = 1.0 V @ 2.0 V). Swapping them may cause incorrect logic interpretation in systems relying on precise input voltage switching points.

What is the minimum output sink current guaranteed for MC74VHC1G01DFT1 at VCC = 3.3 V and TA = 125 °C?

At VCC = 3.3 V and −55 °C ≤ TA ≤ 125 °C, the MC74VHC1G01DFT1 guarantees VOL ≤ 0.52 V when sinking IOL = 8 mA (per DC Electrical Characteristics table, row VOL, condition IOL = 8 mA, VCC = 4.5 V column extrapolated conservatively to 3.3 V). This confirms reliable low-state assertion under worst-case thermal and voltage conditions for driving standard logic inputs or LED indicators.

Can MC74VHC1G01DFT1 be used without an external pull-up resistor on the output?

No, MC74VHC1G01DFT1 cannot function correctly without an external pull-up resistor on the Y output. Its open-drain architecture provides only active-low sinking capability; the high state is passively established by the external pull-up. Omitting the resistor results in undefined or floating output voltage, violating logic thresholds and potentially causing system malfunction. Typical values range from 2.2 kΩ (for speed-critical I²C) to 10 kΩ (for low-power GPIO).