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STMicroelectronics 74AC04MTR
- Part No.:
- 74AC04MTR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74AC04MTR.pdf
- Description:
- IC INVERTER 6CH 1IN 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,197
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Product details
Overview
74AC04MTR from STMicroelectronics is a high-speed CMOS hex inverter IC with 6 independent inverting buffers, operating across 2V–6V supply, delivering 4ns typical propagation delay at 5V, ±24mA symmetrical output drive, and 2µA max quiescent current at 25°C - used in digital logic level translation, clock buffering, and signal inversion in industrial control and instrumentation systems.
For engineers reviewing the 74AC04MTR datasheet, 74AC04MTR pinout, 74AC04MTR application, or 74AC04MTR equivalent, key selection criteria include transmission-line driving capability (50Ω), latch-up immunity, ESD tolerance (2kV), input noise margin (28% VCC), and compatibility with standard 74-series logic footprints.
Technical Context
The 74AC04 implements three-stage buffered CMOS inverter architecture with silicon-gate C2MOS process, enabling balanced tPLH/tPHL delays and stable output under capacitive loads. Its inputs feature diode-clamped protection and 4pF typical input capacitance, while outputs support incident-wave switching on 50Ω transmission lines.
It operates over -55°C to +125°C with rail-to-rail input voltage range (0 to VCC) and guaranteed VIH/VIL thresholds across 3.0V/4.5V/5.5V supply points. Output voltage swing remains within 0.1V of rails at µA-level loads and sustains 24mA sink/source at ≤0.5V VOL/VOH under full load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| tPD (typ) | 4 ns at VCC = 5V - enables sub-100MHz logic interfacing without timing closure issues |
| VCC Range | 2V to 6V - supports mixed-voltage system integration including 3.3V and 5V domains |
| IOL / IOH (min) | 24 mA - drives 50Ω transmission lines directly without external termination resistors |
| VNIH / VNIL (min) | 28% VCC - provides robust noise rejection in electrically noisy industrial environments |
| ICC (max) | 2 µA at TA = 25°C - enables ultra-low static power in battery-backed or always-on logic stages |
| ESD Rating | 2 kV HBM - eliminates need for external ESD protection on board-level I/O traces |
| CIN (typ) | 4 pF - minimizes capacitive loading on upstream drivers and preserves signal edge integrity |
Pinout & Package
74AC04MTR is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package, 3.9mm body width, 1.27mm pitch, with gull-wing leads and moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | Dedicated CMOS logic inputs with clamped ESD protection and 4pF capacitance |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Inverted CMOS outputs capable of ±24mA drive into 50Ω loads with <0.5V VOL/VOH |
| 7 | GND | Logic ground reference plane - must be low-impedance connection to minimize ground bounce |
| 14 | VCC | Positive supply rail - decoupling capacitor (100nF) required within 5mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| Symmetrical output drive | |IOH| = IOL ≥ 24 mA - ensures matched rise/fall times and minimal duty-cycle distortion |
| Balanced propagation delays | tPLH ≈ tPHL - critical for clock distribution networks requiring phase coherence |
| 50Ω transmission-line drive | Guaranteed incident-wave switching - eliminates need for series termination in point-to-point routing |
| Improved latch-up immunity | Robust C2MOS process - prevents destructive SCR triggering during transient overvoltage events |
| PIN- and function-compatible with 74LS04/74HC04 | Drop-in replacement for legacy TTL and HC logic - no PCB redesign required |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Signal inversion and level-shifting between microcontroller GPIOs and 24V field sensors in modular I/O racks. IC Role / Device Role / Timing Role: Hex inverter providing galvanically isolated logic polarity correction and 50Ω line driving for noise-immune sensor feedback paths. Use Value: Eliminates external pull-up resistors and discrete inverters; 28% VCC noise margin ensures reliable operation in 4–20mA loop environments. | Use Scenario: Driving LED status indicators and relay coils from 3.3V MCU outputs in door module ECUs. IC Role / Device Role / Timing Role: Logic buffer/inverter translating low-voltage MCU signals to higher-current 5V-compatible loads with fast 4ns response. Use Value: 24mA drive capability directly activates LEDs and small relays; wide 2–6V VCC range accommodates battery voltage fluctuations. |
| Test Equipment Signal Generators | Medical Diagnostic Interface Boards |
Use Scenario: Inverting and reshaping clock and trigger signals in benchtop oscilloscopes and arbitrary waveform generators. IC Role / Device Role / Timing Role: High-fidelity digital buffer preserving edge integrity and minimizing jitter accumulation across multiple logic stages. Use Value: 4ns typical tPD and matched tPLH/tPHL reduce cumulative skew in multi-stage timing chains by >30% vs. HC-series equivalents. | Use Scenario: Isolating and conditioning digital control signals between FPGA-based processing units and analog front-end ASICs in ultrasound systems. IC Role / Device Role / Timing Role: Noise-immune signal inverter placed at board-level boundaries to suppress coupling between high-speed digital and sensitive analog sections. Use Value: 2kV HBM ESD rating and 4pF CIN prevent latch-up and signal corruption during handling and system integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC04D,653 (Nexperia) | Slower tPD (19ns typ @ 4.5V); lower drive (±4mA); VCC limited to 2–6V but no 50Ω line-drive spec | Acceptable for low-speed control logic but unsuitable for transmission-line signaling or high-current loads | Select when cost sensitivity outweighs speed/current requirements and ESD immunity is secondary |
| SN74AC04DR (Texas Instruments) | Identical AC/DC specs and pinout; same C2MOS process; minor packaging variation (SOIC-14, same footprint) | No functional difference - validated drop-in replacement with identical thermal and electrical behavior | Choose for dual-sourcing flexibility or regional supply chain redundancy without design change |
Compared with 74HC04D, 74AC04MTR delivers 4.7× faster propagation and 6× higher drive strength; versus SN74AC04DR, it offers identical performance with STMicroelectronics' qualified automotive-grade reliability and extended temperature validation (-55°C to +125°C).
Availability
74AC04MTR is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, test equipment, and medical diagnostics requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for 74AC04MTR 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 microcontrollers, power ICs, sensors, and analog/mixed-signal devices for industrial, automotive, and consumer markets.
The 74AC logic family targets high-speed, low-power digital interface applications where timing precision, noise immunity, and robustness across wide temperature ranges are essential - especially in mission-critical embedded control systems.
FAQ
Is 74AC04MTR compatible with 5V TTL logic inputs?
Yes - its VIH minimum is 2.1V at VCC = 3.0V and 3.15V at VCC = 4.5V, exceeding TTL's 2.0V threshold. With VCC = 5V, VIH(min) = 3.85V, ensuring reliable recognition of TTL-high signals. Input structure includes diode clamping, allowing safe interfacing without external level shifters.
What is the maximum recommended capacitive load for stable 74AC04MTR operation?
The device is characterized up to 50pF (CL = 50pF per AC spec), and maintains 4ns tPD with RL = 500Ω. For heavier loads (>100pF), propagation delay increases nonlinearly and ringing may occur. Use series termination or buffer staging for loads beyond 75pF; avoid direct connection to unterminated transmission lines longer than 10cm.
Does 74AC04MTR support mixed-voltage operation (e.g., 3.3V input driving 5V output)?
No - it is a single-supply device: all inputs and outputs reference the same VCC pin. Inputs tolerate 0–VCC, so a 3.3V signal applied to VCC = 5V is valid (VI ≤ VCC), but output swing is bounded by 0–5V. True level translation requires separate VCC domains or dedicated translators like TXB0108.
Can 74AC04MTR be used in place of 74LS04 in existing designs?
Yes - it is pin- and function-compatible with 74LS04, but operates at higher speed (4ns vs. 15ns), lower power (2µA vs. 19mA ICC), and wider voltage range (2–6V vs. 4.75–5.25V). Verify that downstream loads can accept CMOS-level VOH/VOL and that layout accommodates faster edges to avoid crosstalk.
74AC04MTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74AC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Inverter
- Number of Circuits:
- 6
- Number of Inputs:
- 1
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.9V ~ 1.65V
- Input Logic Level - High:
- 2.1V ~ 3.85V
- Max Propagation Delay @ V, Max CL:
- 8ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74AC04MTR FAQ
1.How can I place an order for 74AC04MTR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AC04MTR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74AC04MTR reliable?
The price and inventory of 74AC04MTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AC04MTR is usually 5 days.
3.What payment methods are accepted for 74AC04MTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AC04MTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AC04MTR?
74AC04MTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AC04MTR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74AC04MTR?
For technical support, including 74AC04MTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AC04MTR requirements.
6.How does Aetrix verify that 74AC04MTR is sourced from the original manufacturer or authorized distributors?
All 74AC04MTR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74AC04MTR meets industry standards.
7.What is the process for return or replacement of 74AC04MTR?
All 74AC04MTR units undergo pre-shipment inspection (PSI). If there is an issue with 74AC04MTR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74AC04MTR part is unused and in its original packaging.
Return procedure for 74AC04MTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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