NXP Semiconductors 74HCT04PW,112

Overview

74HCT04PW,112 from Nexperia is a hex inverter IC with TTL-compatible inputs, 14-pin TSSOP package (SOT402-1), -40 °C to +125 °C operating range, 4.5–5.5 V supply, and 10–29 ns propagation delay at VCC = 4.5 V. It serves as a level-shifting logic buffer in microcontroller I/O expansion and digital signal conditioning circuits.

For engineers reviewing the 74HCT04PW,112 datasheet, 74HCT04PW,112 pinout, 74HCT04PW,112 application, or 74HCT04PW,112 equivalent, key selection criteria include TTL-level input compatibility, guaranteed output drive strength (±4.0 mA), thermal performance in TSSOP14, and industrial temperature support without derating below +125 °C.

Technical Context

This device implements six independent CMOS inverters with Schmitt-trigger–free input stages optimized for TTL logic interfacing. Input thresholds are fixed at VIH = 2.0 V min and VIL = 0.8 V max over full temperature and voltage range, ensuring robust noise margin against legacy 5 V TTL sources.

Each inverter delivers rail-to-rail CMOS outputs capable of sourcing 4.0 mA at VOH ≥ 3.84 V and sinking 5.2 mA at VOL ≤ 0.33 V under VCC = 4.5 V, with static supply current below 40 μA and dynamic CPD = 24 pF for accurate power estimation.

Key Specifications

Pinout & Package

TSSOP14 plastic thin shrink small outline package (SOT402-1); 14-lead, 0.65 mm pitch, body width 4.4 mm, height 1.1 mm, moisture sensitivity level 1 (MSL1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT04PW,112, the SO14 variant offers superior thermal dissipation in convection-cooled environments, while the TI alternative provides supply-chain diversification without functional compromise - both retain identical VIH/VIL thresholds and output drive strength.

Availability

74HCT04PW,112 is available at Aetrix Electronics and suitable for industrial control panels, sensor signal conditioning modules, and microcontroller-based edge devices requiring stable component supply across extended temperature ranges.

Supply support for 74HCT04PW,112 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 focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for industrial, automotive, and consumer markets.

The 74HCT series targets robust 5 V logic interoperability, designed specifically for seamless integration between legacy TTL systems and modern CMOS controllers in cost-sensitive, high-reliability applications.

FAQ

Can 74HCT04PW,112 operate at 3.3 V supply?

No. The 74HCT04PW,112 is specified only for 4.5–5.5 V operation per its recommended conditions table. At 3.3 V, input thresholds (VIH ≥ 2.0 V) remain valid, but VOH drops below 2.4 V and VOL rises above 0.4 V - violating TTL compatibility and risking downstream logic errors. Use 74HC04 or 74LVC04 for 3.3 V systems.

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

The datasheet specifies dynamic characteristics up to CL = 50 pF. While the output stage can physically drive >100 pF, propagation delay increases linearly (e.g., tpd ≈ 35 ns at CL = 100 pF, VCC = 4.5 V), and transition times degrade. For timing-critical applications, limit load to ≤50 pF or add series termination to suppress ringing.

Does this part require external pull-up or pull-down resistors on unused inputs?

Yes. Unused inputs must be terminated to VCC or GND. Floating CMOS inputs cause increased ICC, unpredictable output states, and potential oscillation due to noise coupling. A 10 kΩ pull-up to VCC is recommended for consistency with TTL input biasing behavior.

Is the exposed pad on the TSSOP14 package electrically connected?

No. The thermal pad on SOT402-1 (TSSOP14) is not internally connected to any die node. Per Nexperia's datasheet note, it may be left floating or tied to GND for improved thermal conduction - but no electrical function is assigned, and soldering it to GND imposes no electrical requirement.