STMicroelectronics 74V1T04CTR

Overview

74V1T04CTR from STMicroelectronics is a single high-speed CMOS inverter in SOT323-5L package, operating at 4.5–5.5 V with 4.7 ns typical propagation delay, ±8 mA symmetrical output drive, and input tolerance up to 7 V independent of supply. It enables 5V-to-3V level translation in compact logic interface circuits.

For engineers reviewing the 74V1T04CTR datasheet, 74V1T04CTR pinout, 74V1T04CTR application, or 74V1T04CTR equivalent, key selection criteria include input overvoltage tolerance (0–7 V), rail-to-rail output swing under 8 mA load, power-down protected inputs, and SOT323-5L thermal and board-space constraints.

Technical Context

This device implements a three-stage buffered inverter architecture using sub-micron C2MOS technology, delivering high noise immunity and stable switching. Its input stage features diode-clamped protection and power-down isolation, allowing safe operation with floating or off-rail inputs.

Propagation delays are balanced (tPLH ≅ tPHL), and output impedance is symmetrical (|IOH| = IOL ≥ 8 mA at VCC = 4.5 V), supporting clean signal inversion in timing-critical paths. The 16 pF power dissipation capacitance (CPD) enables accurate dynamic current estimation across frequency.

Key Specifications

Pinout & Package

SOT323-5L: 5-pin ultra-small surface-mount package (1.80 × 2.40 mm footprint, 0.65 mm pitch), optimized for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single inverter applications.

Compared with SN74LVC1G04DBVR and MC74VHC1G04DTT1G, the 74V1T04CTR uniquely supports 0–7 V input operation with VCC = 0 V, making it the only choice for hot-swap and mixed-voltage fault-tolerant designs.

Availability

74V1T04CTR is available at Aetrix Electronics and suitable for industrial sensor interfaces, 5V-to-3V level translation, compact timing signal inversion, and hot-swappable module control requiring stable component supply and long-term obsolescence management.

Supply support for 74V1T04CTR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, MCU, power, and discrete devices for industrial, automotive, and consumer markets.

The 74V series targets high-speed, low-power CMOS logic applications demanding robustness, wide voltage tolerance, and compatibility with legacy TTL systems.

FAQ

Can the 74V1T04CTR safely accept 7 V on its input while VCC = 0 V?

Yes. The input stage includes diode clamping and power-down protection, allowing 0–7 V input voltage regardless of VCC state. This prevents back-powering and latch-up during partial power sequencing or hot-swap events, as confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables.

What is the maximum capacitive load this inverter can drive while maintaining 4.7 ns propagation delay?

The 4.7 ns typical tPD is specified with CL = 15 pF. At CL = 50 pF, tPD increases to 5.5 ns (typ). For loads beyond 50 pF, external buffering is recommended to maintain timing integrity, as AC characteristics degrade predictably with increasing load capacitance per the AC Electrical Characteristics table.

Does the NC pin (Pin 1) require any PCB layout consideration?

No. Pin 1 is internally not connected and must remain unconnected on the PCB. It should not be routed, grounded, or tied to any net. Leaving it floating poses no electrical or reliability risk, and no solder mask or keep-out exception is needed per mechanical drawings.

How does the 74V1T04CTR achieve balanced tPLH and tPHL despite CMOS process variations?

Through a three-stage buffered design with matched P/N transistor sizing in the final output stage and symmetric layout of pull-up/pull-down paths. This intentional topology-documented in the "internal circuit is composed of 3 stages including buffer output"-ensures consistent rise/fall response across voltage, temperature, and process corners, yielding tPLH ≅ tPHL as verified in AC characterization.