Nexperia USA Inc. 74HCT3G04DC,125

Overview

74HCT3G04DC,125 from Nexperia is a triple CMOS inverter IC with TTL-compatible input thresholds, operating from 4.5 V to 5.5 V supply, delivering propagation delay of 10–29 ns (typ. 18 ns at VCC = 4.5 V), output drive capability of ±4.0 mA, and rated for -40 °C to +125 °C industrial temperature range - used for signal inversion and logic-level translation in microcontroller I/O buffering and digital interface conditioning.

For engineers reviewing the 74HCT3G04DC,125 datasheet, 74HCT3G04DC,125 pinout, 74HCT3G04DC,125 application, or 74HCT3G04DC,125 equivalent, key selection criteria include TTL-level input compatibility, VSSOP8 package footprint, guaranteed 125 °C operation, and low dynamic power dissipation (CPD = 9 pF) in space-constrained digital control circuits.

Technical Context

This device implements three independent inverting gates in a single monolithic CMOS structure with buffered outputs and input clamp diodes enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Each gate operates with rail-to-rail input voltage tolerance (0 V to VCC) and delivers symmetrical HIGH/LOW output swing under load.

The 74HCT3G04 variant uses TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), ensuring interoperability with legacy 5 V TTL logic families while maintaining CMOS power efficiency and noise immunity. Propagation delay and transition time are characterized across full temperature and voltage ranges per JEDEC JESD7A and JESD8C standards.

Key Specifications

Pinout & Package

VSSOP8 plastic very thin shrink small outline package (SOT765-1); 8 leads; body width 2.3 mm; pin 1 indicator located below marking code in lower-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT3G04DC,125, the 74HCT04PW,118 offers more gates but demands layout rework, while SN74LVC3G04DCUR provides faster switching and lower voltage operation but sacrifices 5 V TTL interoperability - making the original optimal for drop-in 5 V industrial upgrades.

Availability

74HCT3G04DC,125 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and high-temperature sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HCT3G04DC,125 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

Nexperia is a global semiconductor expert specializing in high-performance, high-reliability logic, analog, and discrete components for automotive, industrial, and consumer markets.

The 74HCT series targets robust 5 V digital interfacing with TTL compatibility and enhanced ESD/latch-up resilience - designed specifically for mission-critical industrial control and automotive body electronics where signal integrity and temperature stability are non-negotiable.

FAQ

Is 74HCT3G04DC,125 pin-compatible with 74HC3G04DC?

Yes - both share identical VSSOP8 (SOT765-1) pinout and terminal functions (1A/2A/3A inputs, 1Y/2Y/3Y outputs, GND, VCC). The only functional difference is input threshold levels: 74HCT3G04DC accepts TTL inputs (VIH ≥ 2.0 V), while 74HC3G04DC requires CMOS-level inputs (VIH ≥ 3.15 V at VCC = 4.5 V). Swapping requires verifying upstream driver compatibility.

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

The device is characterized up to 50 pF load capacitance (per Table 10 test conditions) with guaranteed timing. At VCC = 4.5 V and Tamb = 25 °C, it maintains tpd ≤ 18 ns and tt ≤ 15 ns into 50 pF. For loads >50 pF, propagation delay increases linearly; design margin should include worst-case 29 ns tpd at 125 °C and full process variation.

Does this part support 3.3 V operation?

No - the 74HCT3G04DC is specified only for 4.5 V to 5.5 V supply. At 3.3 V, VIH minimum (2.0 V) remains valid but VOH drops below 2.4 V (per Table 7), failing TTL HIGH-level recognition. For 3.3 V systems, use SN74LVC3G04 or 74AUP3G04 instead.

How does the input clamp diode affect system design?

The integrated input clamp diodes allow safe connection to signals exceeding VCC by up to 0.5 V when current-limited to ±20 mA (per Table 5). This eliminates external diodes in overvoltage-tolerant interfaces - e.g., connecting to hot-pluggable 5 V buses - provided series resistors limit peak current to <20 mA during fault conditions.