STMicroelectronics 74V2G04STR

Overview

74V2G04STR from STMicroelectronics is a triple inverting buffer IC in SOT23-8L package, operating from 2V to 5.5V, with 3.8ns typical propagation delay at 5V, ±8mA symmetrical output drive, and input tolerance up to 7V independent of VCC-enabling robust 5V-to-3V level translation in mixed-voltage logic interfaces.

For engineers reviewing the 74V2G04STR datasheet, 74V2G04STR pinout, 74V2G04STR application, or 74V2G04STR equivalent, key selection criteria include propagation delay matching, input overvoltage tolerance, output drive symmetry, and SOT23-8L board space constraints in high-density logic interface designs.

Technical Context

This device implements three independent CMOS inverters using sub-micron C2MOS technology with buffered outputs, delivering balanced tPLH/tPHL delays and high noise immunity (28% VCC min). Its input structure supports 0–7V operation regardless of VCC, enabling safe hot-swap and bus-hold compatibility.

The internal design includes power-down protection diodes and latch-up immunity enhancements. Output stages are optimized for symmetrical sourcing/sinking (≥8mA at 4.5V), ensuring consistent rise/fall times and minimal skew across all three channels.

Key Specifications

Pinout & Package

SOT23-8L (8-pin small outline transistor) package with exposed pad not present; surface-mount, lead pitch 0.65mm, body size 2.80 × 2.60 × 1.45 mm; RoHS-compliant, tape-and-reel delivery (74V2G04STR).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G04DBVR and NC7WZ04P6X, the 74V2G04STR uniquely supports 0–7V inputs at any VCC within 2–5.5V, making it the only option among the three for mixed-voltage hot-swap interfaces without added protection components.

Availability

74V2G04STR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and medical patient monitor interfaces requiring stable component supply and long-term lifecycle support.

Supply support for 74V2G04STR 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, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The 74V series targets high-speed, low-power logic applications requiring robustness in mixed-voltage and harsh-environment systems-emphasizing noise immunity, overvoltage tolerance, and wide temperature operation.

FAQ

Can 74V2G04STR be used with 1.8V supply?

No. The recommended operating VCC range is 2.0V to 5.5V per datasheet Section "Recommended Operating Conditions." At 1.8V, VIH minimum (0.7×VCC = 1.26V) falls below standard 1.8V logic high threshold (typically ≥1.35V), risking unreliable switching and increased static current due to partial device activation.

Does 74V2G04STR support live insertion into a powered 5V bus?

Yes. Its input pins tolerate −0.5V to +7.0V regardless of VCC, and power-down protection diodes prevent back-powering when VCC = 0V. This enables safe hot-plug operation in modular backplane or field-replaceable unit designs where the IC may be inserted while the bus remains active.

What is the maximum capacitive load this device can drive reliably?

The AC specifications are characterized up to 50pF (CL = 15pF and 50pF test conditions). Driving >50pF increases propagation delay nonlinearly and may cause ringing or overshoot. For loads exceeding 50pF, add a series resistor (10–33Ω) near the output to dampen reflections without degrading edge rate excessively.

Is there a pin-compatible replacement for obsolete 74V2G04STR?

No direct pin-compatible replacement exists. STMicroelectronics lists 74V2G04STR as obsolete with no second-source or drop-in successor. Engineers should verify functional equivalence using SN74LVC2G04DBVR or NC7WZ04P6X-but both require schematic and layout changes due to differing pinouts and voltage tolerances.