Texas Instruments SN74LV04APWT

Overview

SN74LV04APWT from Texas Instruments is a hex inverter IC operating across 2 V to 5.5 V supply, delivering 6.5 ns max propagation delay at 5 V, 25 mA output drive per channel, Ioff partial-power-down support, and overvoltage-tolerant inputs up to 5.5 V - used for level translation and bus interface conditioning in industrial I/O modules.

For engineers reviewing the SN74LV04APWT datasheet, SN74LV04APWT pinout, SN74LV04APWT application, or SN74LV04APWT equivalent, key selection criteria include VCC range compatibility (2–5.5 V), tpd ≤6.5 ns at 5 V, Ioff-enabled live insertion, input overvoltage tolerance, and TSSOP-14 package thermal performance.

Technical Context

This CMOS hex inverter implements six independent Y = A logic functions with rail-to-rail output swing and balanced rise/fall times. Its Ioff circuitry actively disables outputs during power-down, preventing back-drive current and enabling hot-plug capability in mixed-voltage systems.

The device supports mixed-mode voltage operation: inputs accept up to 5.5 V regardless of VCC (2–5.5 V), enabling down-translation from 5-V logic to 3.3-V or 2.5-V domains without external level shifters. Output ground bounce (VOLP) remains <0.8 V at 3.3 V/25°C.

Key Specifications

Pinout & Package

TSSOP-14 package (5.00 mm × 4.40 mm body size, 0.65 mm pitch), thermally enhanced with exposed pad option (not applicable to PW variant); JEDEC-standard pinout compatible with industry-wide layout practices.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC04APW and MC74LCX04DT, SN74LV04APWT uniquely combines 5.5-V input tolerance, Ioff, and 2–5.5 V operation - making it the only choice for industrial hot-plug I/O modules requiring both voltage translation and power-state isolation.

Availability

SN74LV04APWT is available at Aetrix Electronics and suitable for industrial I/O modules, server baseboard management, Ethernet switch PHY interfaces, and flow meter signal conditioning requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for SN74LV04APWT 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.

The SN74LV04A product line delivers robust, wide-supply-voltage hex inverters optimized for mixed-signal interface bridging, level translation, and partial-power-down reliability in harsh industrial environments.

FAQ

What is the maximum propagation delay of SN74LV04APWT at 5 V?

The maximum propagation delay (tpd) of SN74LV04APWT is 6.5 ns at VCC = 5 V ± 0.5 V, CL = 15 pF, and TA = –40°C to +125°C - measured from input transition (50% VCC) to output transition (50% VCC). This value is production-tested and guaranteed across full temperature range per datasheet Section 7.8.

Does SN74LV04APWT support partial-power-down operation?

Yes, SN74LV04APWT includes an Ioff feature that disables all outputs when VCC = 0 V, limiting Ioff current to ≤5 µA. This prevents current backflow from live inputs into a powered-down system - critical for hot-swap I/O modules and modular PLC backplanes where SN74LV04APWT is commonly deployed.

Can SN74LV04APWT accept 5-V inputs while operating at 3.3 V VCC?

Yes, SN74LV04APWT inputs tolerate voltages up to 5.5 V regardless of VCC setting (2–5.5 V), enabling reliable 5-V-to-3.3-V down-translation without external components. This behavior is explicitly specified in Section 9.3 ("Feature Description") and validated across –40°C to +125°C per datasheet Table 7.3.

What is the recommended bypass capacitor for SN74LV04APWT?

A 0.1 µF ceramic capacitor is recommended between VCC (Pin 14) and GND (Pin 7) for SN74LV04APWT, placed as close as possible to the pins. This value is specified in Section 11 ("Power Supply Recommendations") to suppress high-frequency supply noise and maintain stable logic thresholds during switching transitions.

Is SN74LV04APWT pin-compatible with other TSSOP-14 hex inverters?

SN74LV04APWT uses standard JEDEC TSSOP-14 pinout (1A–6Y, GND, VCC) and is functionally and physically pin-compatible with SN74LVC04APW and SN74AHC04PWR. However, differences in Ioff support, input voltage tolerance, and drive strength require validation in target circuits before substitution.