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STMicroelectronics M74HC4050TTR
- Part No.:
- M74HC4050TTR
- Manufacturer:
- STMicroelectronics
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M74HC4050TTR.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,776
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Product details
Overview
M74HC4050TTR from STMicroelectronics is a high-speed CMOS hex non-inverting buffer/level shifter in TSSOP-16 package, operating from 2V to 6V supply, with 8ns typical propagation delay at 6V, ±5.2mA output drive, and input tolerance up to 13V - enabling logic-level translation between 3.3V/5V systems and higher-voltage interfaces in industrial control I/O modules.
For engineers reviewing the M74HC4050TTR datasheet, M74HC4050TTR pinout, M74HC4050TTR application, or M74HC4050TTR equivalent, key selection criteria include its 13V-tolerant inputs, symmetrical 6mA output drive, wide VCC range (2–6V), noise immunity (28% VCC), and compatibility with 74-series 4050 logic families in space-constrained PCB layouts.
Technical Context
The M74HC4050TTR implements six independent non-inverting buffer stages using silicon gate C2MOS technology, each with three internal logic stages to enhance noise rejection and output stability. Its input protection diodes allow safe operation with input voltages up to 13V regardless of VCC level, supporting bidirectional level shifting without external components.
Propagation delays are balanced (tPLH ≅ tPHL), and output impedance is symmetrical (|IOH| = IOL ≥ 6mA), ensuring consistent rise/fall times and minimal signal distortion across all six channels under load. AC performance is specified at CL = 50pF with input edge rates tightly controlled per VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - supports mixed-voltage system interfacing (e.g., 3.3V MCU to 5V peripheral) |
| tPD (Typ.) | 8ns at VCC = 6V - enables high-speed digital signal buffering in timing-critical paths |
| VI(Max) | 13V - allows direct connection to >VCC signals (e.g., 12V sensor outputs) without clamping resistors |
| IOL / IOH | ≥6mA - drives standard TTL loads or multiple 74HC inputs without fanout limitation |
| VNIH / VNIL | 28% VCC (min) - provides robust noise margin against EMI in industrial environments |
| ICC (Max) | 1µA at TA = 25°C - ultra-low static power for battery-backed or always-on monitoring circuits |
| CIN | 5pF - minimizes capacitive loading on driving sources, preserving signal integrity |
Pinout & Package
TSSOP-16 package: 4.9 × 6.4 mm body, 0.65 mm pitch, 1.2 mm max height, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply rail (2–6V); decoupling capacitor required near pin |
| 2, 4, 6, 10, 12, 15 | 1Y–6Y | Non-inverting buffered outputs; each drives independent load |
| 3, 5, 7, 9, 11, 14 | 1A–6A | 13V-tolerant inputs; accept logic-high up to 13V regardless of VCC |
| 8 | GND | Ground reference; low-impedance return path for all six buffers |
| 13, 16 | NC | No internal connection; must be left floating or tied to GND/VCC per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| 13V-tolerant inputs | Enables direct interface to legacy 5V/12V logic without level-shifter ICs or resistive dividers |
| Symmetrical output drive | Guarantees matched rise/fall times (tTLH ≈ tTHL) for clean square-wave transmission |
| Wide VCC range (2–6V) | Permits single part number use across 3.3V microcontrollers and 5V industrial backplanes |
| Ultra-low ICC (1µA max) | Reduces standby power in always-on sensor nodes and remote I/O expanders |
| High noise immunity (28% VCC) | Suppresses false triggering in electrically noisy factory-floor PLC modules |
Applications
| Industrial I/O Expansion | Automotive Body Control |
|---|---|
Use Scenario: Isolating and translating signals between a 3.3V ARM-based controller and 12V solenoid drivers or relay modules. IC Role / Device Role / Timing Role: Non-inverting buffer with 13V-tolerant inputs acting as voltage-level translator and current booster. Use Value: Eliminates need for discrete MOSFET translators or resistor networks, reducing BOM count and board area. | Use Scenario: Driving LED status indicators and switch inputs in door module ECUs where supply rails vary between 5V and battery voltage. IC Role / Device Role / Timing Role: Input conditioner and output driver handling mixed-voltage sensing and actuation signals. Use Value: Ensures reliable logic interpretation despite battery voltage fluctuations (9–16V) and EMI exposure. |
| Test Equipment Signal Conditioning | Programmable Logic Interface |
Use Scenario: Buffering and conditioning TTL/CMOS signals in automated test fixtures with variable DUT voltage domains. IC Role / Device Role / Timing Role: High-speed, low-skew signal repeater maintaining signal fidelity across long PCB traces. Use Value: Preserves edge integrity (tPLH ≅ tPHL, 8ns typ.) for accurate timing capture in boundary-scan applications. | Use Scenario: Interfacing FPGA I/O banks (1.8V/3.3V) to legacy 5V CPLD or PAL devices on shared backplane. IC Role / Device Role / Timing Role: Bidirectional level-shifting buffer enabling voltage-domain bridging without direction control pins. Use Value: Simplifies interconnect design by removing need for dual-supply translators or direction logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex non-inverting buffer/level-shifter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC4050PWR | TI part; identical pinout and DC specs, but VI(max) = 7V (not 13V); lower noise immunity (20% VCC) | Not suitable for direct 12V input interfacing without external clamping | Select only when interfacing ≤7V logic domains and cost sensitivity outweighs voltage margin needs |
| 74LVC4050PW | NXP part; supports 1.65–5.5V VCC, VI(max) = 5.5V, faster tPD (5.3ns @ 3.3V), but no 13V tolerance | Limited to low-voltage systems; requires external protection for >5.5V inputs | Preferred for high-speed, low-voltage portable designs where 13V tolerance is unnecessary |
Compared with SN74HC4050PWR and 74LVC4050PW, the M74HC4050TTR uniquely delivers 13V input tolerance within the HC family, making it the only choice for direct interfacing to unregulated 12V sensor or actuator signals without added protection circuitry.
Availability
M74HC4050TTR is available at Aetrix Electronics and suitable for industrial I/O expansion, automotive body control modules, test equipment signal conditioning, and programmable logic interface applications requiring stable component supply and long-term manufacturability.
Supply support for M74HC4050TTR 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 analog, digital, and mixed-signal ICs for industrial, automotive, and consumer markets.
The M74HC4050TTR belongs to ST's high-speed CMOS logic family, engineered specifically for robust voltage-level translation and noise-immune signal buffering in harsh industrial and automotive environments.
FAQ
Can M74HC4050TTR be used with a 3.3V supply to interface with 5V logic?
Yes. With VCC = 3.3V, the M74HC4050TTR accepts inputs up to 13V and outputs valid high levels ≥3.15V (VIH min at 4.5V VCC scales downward), meeting 5V TTL input thresholds. Its 13V-tolerant inputs eliminate external clamping for 5V signal sources.
What is the maximum capacitive load this device can drive reliably?
The M74HC4050TTR is characterized up to 50pF load (CL = 50pF) with guaranteed tPLH/tPHL and tTLH/tTHL. For heavier loads (>100pF), propagation delay increases linearly; output drive remains functional up to 6mA, but signal integrity requires careful trace routing and local decoupling.
Are pins 13 and 16 internally connected?
No. Pins 13 and 16 are explicitly marked "NC" (Not Connected) in the official STMicroelectronics datasheet. They have no internal bond wire or silicon connection and must remain unconnected or optionally tied to GND/VCC only for mechanical stability - never used as signal or power terminals.
Does this device support hot insertion or live plugging?
No. The M74HC4050TTR lacks hot-swap protection circuitry. Applying VCC after input signals may forward-bias internal protection diodes, causing latch-up or excessive current. Always power VCC before applying input signals, especially when interfacing with powered upstream devices.
M74HC4050TTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74HC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 6
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
M74HC4050TTR FAQ
1.How can I place an order for M74HC4050TTR through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HC4050TTR 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 M74HC4050TTR reliable?
The price and inventory of M74HC4050TTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HC4050TTR is usually 5 days.
3.What payment methods are accepted for M74HC4050TTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HC4050TTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74HC4050TTR?
M74HC4050TTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HC4050TTR 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 M74HC4050TTR?
For technical support, including M74HC4050TTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HC4050TTR requirements.
6.How does Aetrix verify that M74HC4050TTR is sourced from the original manufacturer or authorized distributors?
All M74HC4050TTR 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 M74HC4050TTR meets industry standards.
7.What is the process for return or replacement of M74HC4050TTR?
All M74HC4050TTR units undergo pre-shipment inspection (PSI). If there is an issue with M74HC4050TTR, 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 M74HC4050TTR part is unused and in its original packaging.
Return procedure for M74HC4050TTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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