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STMicroelectronics M74HCU04TTR
- Part No.:
- M74HCU04TTR
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M74HCU04TTR.pdf
- Description:
- IC INVERTER 6CH 1-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,257
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Product details
Overview
M74HCU04TTR from STMicroelectronics is a high-speed CMOS hex inverter (single-state) fabricated in silicon gate C2MOS technology, used for signal inversion, crystal oscillator buffering, and logic-level translation in digital systems; features 5 ns typical propagation delay at 6 V, 2–6 V operating voltage range, ±4 mA symmetrical output drive, 1 µA max quiescent current at 25°C, and pin/function compatibility with standard 74-series 04 inverters.
For engineers reviewing the M74HCU04TTR datasheet, M74HCU04TTR pinout, M74HCU04TTR application, or M74HCU04TTR equivalent, this page delivers verified electrical specs, TSSOP-14 package details, real-world use cases in oscillator circuits and level-shifting interfaces, and validated alternative parts with documented functional and application differences.
Technical Context
The M74HCU04TTR implements six independent single-stage CMOS inverters with rail-to-rail input voltage tolerance (0 to VCC), enabling direct interfacing across mixed-voltage domains. Its symmetrical output impedance (|IOH| = IOL ≥ 4 mA) and balanced tPLH/tPHL delays ensure minimal duty-cycle distortion in clock distribution paths.
Designed for crystal oscillator applications, it leverages low input capacitance (5 pF typ.) and high noise immunity (VNIH/VNIL ≥ 10% VCC min.), while its C2MOS process delivers ultra-low ICC (1 µA max at 25°C) without compromising speed-achieving 5 ns tPD at 6 V with CL = 50 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 2 V to 6 V - supports battery-powered and multi-rail digital systems without level shifters |
| tPD (Typ.) | 5 ns at VCC = 6 V, CL = 50 pF - enables >100 MHz clock edge rates in oscillator feedback loops |
| IOL / IOH (Min.) | 4 mA - drives standard TTL loads and multiple CMOS inputs without fanout limitation |
| ICC (Max.) | 1 µA at TA = 25°C - enables always-on timing circuits with negligible standby power impact |
| Input Capacitance | 5 pF - minimizes loading on crystal resonators and high-frequency signal sources |
| VIH / VIL Thresholds | 1.7 V / 0.3 V at VCC = 2 V - ensures robust logic recognition across full supply range |
| Operating Temp | −55°C to +125°C - qualified for industrial and automotive under-hood environments |
Pinout & Package
TSSOP-14 (Thin Shrink Small Outline Package), 4.9 × 6.4 mm body, 0.65 mm pitch, 14-pin surface-mount package with exposed pad not present; RoHS-compliant, moisture sensitivity level (MSL) 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input A1–A6 | Dedicated CMOS logic inputs; each accepts 0–VCC voltage, protected against ESD and transients |
| 2, 4, 6, 8, 10, 12 | Output Y1–Y6 | Inverted outputs with symmetrical sourcing/sinking capability (≥4 mA); rail-to-rail swing |
| 7 | GND | Logic ground reference; must be low-impedance connection to minimize switching noise coupling |
| 14 | VCC | Positive supply rail; decoupling capacitor (100 nF) required within 5 mm for stable high-speed operation |
Key Features
| Feature | Design Value |
|---|---|
| Single-stage inverter topology | Enables direct integration into Pierce oscillator configurations without added phase shift stages |
| High noise immunity (≥10% VCC) | Reduces susceptibility to crosstalk and supply ripple in dense PCB layouts |
| Symmetrical output drive (|IOH| = IOL) | Maintains 50% duty cycle in clock generation applications, critical for timing-sensitive peripherals |
| Wide VCC range (2–6 V) | Eliminates need for external regulators when interfacing 3.3 V controllers with 5 V legacy peripherals |
| ESD-protected inputs | Withstands ±2 kV HBM per IEC 61000-4-2, reducing system-level protection component count |
Applications
| Crystal Oscillator Buffer | Level-Shifting Interface |
|---|---|
Use Scenario: Driving AT-cut 32.768 kHz tuning-fork crystal in real-time clock (RTC) modules with low-jitter feedback path. IC Role / Device Role / Timing Role: Inverter stage in Pierce oscillator configuration; provides gain and phase inversion to sustain oscillation. Use Value: 5 pF input capacitance and 5 ns tPD minimize frequency pulling and startup time; 1 µA ICC extends battery life in coin-cell-powered RTCs. | Use Scenario: Translating 3.3 V GPIO signals from an ARM microcontroller to 5 V logic inputs on legacy industrial I/O expanders. IC Role / Device Role / Timing Role: Unidirectional level translator using supply-voltage-dependent threshold behavior. Use Value: 2–6 V VCC range allows direct 5 V biasing while accepting 3.3 V inputs; no external resistors or direction control needed. |
| Digital Signal Inversion | Waveform Shaping |
Use Scenario: Inverting asynchronous reset signals in FPGA configuration circuits to meet active-low assertion requirements. IC Role / Device Role / Timing Role: Logic-level inverter with guaranteed setup/hold margin due to balanced tPLH/tPHL. Use Value: 4 mA drive strength ensures fast edge rates into 50 pF net capacitance; −55°C to +125°C rating supports industrial control cabinets. | Use Scenario: Squaring up slow-rising analog comparator outputs before feeding into digital counters or timers. IC Role / Device Role / Timing Role: Schmitt-trigger-free waveform sharpening via high-gain CMOS inverter with hysteresis-limited noise rejection. Use Value: 10% VCC noise margin prevents false triggering on noisy comparator outputs; 5 ns propagation enables >100 MHz square-wave generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCU04DR | Same AC/DC specs; SOIC-14 package (1.27 mm pitch), higher thermal resistance (θJA = 120°C/W vs. 105°C/W) | Less suitable for space-constrained PCBs; requires larger board area and longer trace routing | Select for prototyping or through-hole-compatible rework scenarios where TSSOP handling is impractical |
| 74LVC04PW,118 | Lower VCC range (1.65–5.5 V); 3.5 ns tPD at 3.3 V; 5 pF CIN; but only rated to +85°C ambient | Not qualified for extended temperature industrial use; lacks −55°C low-temp performance | Prefer for cost-sensitive consumer designs operating strictly at 3.3 V and ≤85°C ambient |
Compared with SN74HCU04DR and 74LVC04PW,118, the M74HCU04TTR uniquely combines extended temperature support (−55°C to +125°C), TSSOP-14 footprint efficiency, and proven crystal oscillator stability-making it optimal for ruggedized timing and industrial interface applications where reliability trumps marginal speed gain.
Availability
M74HCU04TTR is available at Aetrix Electronics and suitable for crystal oscillator circuits, industrial level-shifting interfaces, FPGA reset conditioning, and waveform shaping applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for M74HCU04TTR 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, analog ICs, power management devices, and discrete components for industrial, automotive, and consumer markets.
The M74HCU04TTR belongs to ST's legacy high-speed CMOS logic family, engineered specifically for low-power, high-reliability digital interfacing and timing-critical oscillator functions in harsh-environment applications.
FAQ
Is M74HCU04TTR suitable for driving quartz crystals directly?
Yes. Its single-stage inverter architecture, low input capacitance (5 pF), and high gain enable direct use in Pierce oscillator configurations with standard 32.768 kHz or MHz-range fundamental-mode crystals. External load capacitors and feedback resistor values must follow crystal manufacturer recommendations.
What is the maximum capacitive load this device can drive reliably?
The M74HCU04TTR is characterized up to 50 pF (AC specs), but can drive ≥100 pF loads with measurable delay increase (tPD rises ~15% at 100 pF, VCC = 6 V). For >50 pF, verify signal integrity and edge monotonicity in target layout; avoid unterminated transmission lines.
Does M74HCU04TTR have built-in ESD protection on all pins?
Yes. All inputs include integrated protection diodes rated to ±2 kV HBM per IEC 61000-4-2. Outputs are not diode-protected but tolerate ±20 mA DC diode current. System-level ESD design should still include external TVS if exposed to IEC 61000-4-2 contact discharge.
Can M74HCU04TTR operate at 1.8 V supply?
No. The absolute minimum recommended VCC is 2.0 V per datasheet. At 1.8 V, VIH/VIL thresholds become undefined, propagation delay increases unpredictably (>100 ns), and output drive falls below specification. Use 74LVC04 or similar 1.65 V–5.5 V logic for 1.8 V systems.
M74HCU04TTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74HCU
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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):
- 1 µA
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Input Logic Level - Low:
- 0.3V ~ 1.2V
- Input Logic Level - High:
- 1.7V ~ 4.8V
- Max Propagation Delay @ V, Max CL:
- 10ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
M74HCU04TTR FAQ
1.How can I place an order for M74HCU04TTR through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HCU04TTR 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 M74HCU04TTR reliable?
The price and inventory of M74HCU04TTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HCU04TTR is usually 5 days.
3.What payment methods are accepted for M74HCU04TTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HCU04TTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74HCU04TTR?
M74HCU04TTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HCU04TTR 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 M74HCU04TTR?
For technical support, including M74HCU04TTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HCU04TTR requirements.
6.How does Aetrix verify that M74HCU04TTR is sourced from the original manufacturer or authorized distributors?
All M74HCU04TTR 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 M74HCU04TTR meets industry standards.
7.What is the process for return or replacement of M74HCU04TTR?
All M74HCU04TTR units undergo pre-shipment inspection (PSI). If there is an issue with M74HCU04TTR, 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 M74HCU04TTR part is unused and in its original packaging.
Return procedure for M74HCU04TTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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