onsemi MM74HCT04SJX

Overview

MM74HCT04SJX from ON Semiconductor is a hex inverter IC fabricated in advanced silicon-gate CMOS technology, providing TTL/LS pin-out and threshold compatibility, 12 ns typical propagation delay (tPLH/tPHL), and 10 µW quiescent power at DC. It serves as a logic-level signal inverter in digital control, interface buffering, and clock conditioning circuits.

For engineers reviewing the MM74HCT04SJX datasheet, pinout, applications, or equivalent options, key selection considerations include its 14-lead SOP package (EIAJ TYPE II, 5.3 mm wide), guaranteed 4.5–5.5 V supply operation, –40°C to +85°C industrial temperature range, and LS-TTL plug-in replacement capability with reduced power consumption.

Technical Context

The MM74HCT04SJX implements six independent inverting buffers with triple-buffered output stages to improve noise immunity and drive strength. Its input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) match LS-TTL logic families, enabling direct interfacing without level-shifting.

All inputs feature internal clamp diodes to VCC and GND for ESD protection. The device operates within a 4.5–5.5 V supply range and delivers guaranteed 4 mA sink/source output drive at VCC = 4.5 V, supporting ≥10 LS-TTL loads per output.

Key Specifications

Pinout & Package

MM74HCT04SJX is housed in a 14-lead Small Outline Package (SOP), EIAJ TYPE II, 5.3 mm wide, with gull-wing leads and JEDEC-compliant footprint (M14D). Pin 1 is marked by a notch or dot on the package top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HCT04DR and 74VHC04M, the MM74HCT04SJX offers superior ESD robustness via integrated input clamps, guaranteed industrial temperature operation, and tighter propagation delay consistency-making it optimal for reliability-critical control and retrofit applications.

Availability

MM74HCT04SJX is available at Aetrix Electronics and suitable for industrial control logic, digital interface buffering, and microcontroller peripheral expansion requiring stable component supply and long-term manufacturability.

Supply support for MM74HCT04SJX 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

ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, and cloud infrastructure markets.

The MM74HCT04SJX belongs to ON Semiconductor's legacy HCT logic family, designed specifically to bridge TTL and CMOS systems with LS-TTL compatibility, low power, and industrial reliability-targeting control, instrumentation, and legacy upgrade applications.

FAQ

What is the maximum operating supply voltage for MM74HCT04SJX?

The absolute maximum supply voltage for MM74HCT04SJX is +7.0 V, but the recommended operating range is strictly 4.5 V to 5.5 V per the datasheet. Operation outside this range may cause unreliable logic behavior or accelerated parametric drift. For stable performance in industrial applications, MM74HCT04SJX must be powered within 4.5–5.5 V, with decoupling capacitors placed near pins 7 (GND) and 14 (VCC).

Does MM74HCT04SJX support operation at –40°C?

Yes, MM74HCT04SJX is fully specified and tested over the industrial temperature range of –40°C to +85°C. All DC and AC parameters-including VIH/VIL thresholds, VOH/VOL levels, and propagation delay-are guaranteed across this full range. This makes MM74HCT04SJX suitable for use in outdoor equipment, factory automation, and automotive under-hood control modules where cold-start reliability is critical.

Is MM74HCT04SJX pin-compatible with 74LS04?

Yes, MM74HCT04SJX uses identical pin assignments and electrical thresholds as the 74LS04, making it a direct plug-in replacement. Inputs accept LS-TTL voltage levels (VIH ≥ 2.0 V, VIL ≤ 0.8 V), outputs drive LS-TTL loads (≥10 fanout), and the 14-pin SOP footprint matches standard LS layouts. No PCB changes are needed when upgrading from 74LS04 to MM74HCT04SJX in existing designs.

What is the output drive capability of MM74HCT04SJX at 4.5 V supply?

At VCC = 4.5 V, MM74HCT04SJX guarantees ±4.0 mA output current per pin under DC conditions, with VOL ≤ 0.26 V (sink) and VOH ≥ 3.98 V (source). This meets LS-TTL loading requirements and supports driving multiple downstream logic inputs or small capacitive loads up to 15 pF without external buffering. The MM74HCT04SJX maintains this drive strength across its full operating temperature range.

Does MM74HCT04SJX include ESD protection on its inputs?

Yes, MM74HCT04SJX integrates internal clamp diodes from each input to VCC and GND, rated for ±20 mA continuous clamp current. This provides inherent protection against electrostatic discharge events during handling and board assembly. The diodes allow safe operation in environments with typical human-body-model (HBM) ESD up to ±2 kV without requiring external protection components-enhancing robustness in industrial manufacturing and field service scenarios.