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Texas Instruments CD74HC4050E
- Part No.:
- CD74HC4050E
- Manufacturer:
- Texas Instruments
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
CD74HC4050E.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,700
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Product details
Overview
CD74HC4050E from Texas Instruments is a non-inverting hex buffer IC designed for logic-level translation and signal buffering in mixed-voltage systems. It supports 2V–6V VCC operation, accepts input voltages up to 16V, delivers 6ns typical propagation delay at 5V/15pF, and operates across –55°C to +125°C - enabling use in industrial sensor interfaces and legacy 15V-to-5V level-shifting applications.
For engineers reviewing the CD74HC4050E datasheet, CD74HC4050E pinout, CD74HC4050E application, or CD74HC4050E equivalent, key selection criteria include its high-input-voltage tolerance (up to 16V), non-inverting output behavior, PDIP-16 package compatibility with through-hole prototyping, and guaranteed operation over extended temperature ranges without external biasing.
Technical Context
The CD74HC4050E implements six independent non-inverting buffer channels using high-speed silicon-gate CMOS technology. Its modified input protection structure enables direct interfacing of 15V logic signals to 5V or 3.3V digital systems without external resistors or clamps.
Each channel provides rail-to-rail output swing (0V to VCC), supports ±25mA output drive per pin, and maintains balanced rise/fall times and propagation delays across the full operating temperature range. The device is not TTL-compatible in input thresholds but drives LSTTL loads (10 per output) under temperature extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - powers directly from common logic rails including 3.3V and 5V systems without regulation. |
| Max Input Voltage (VI) | –0.5V to +16V - allows safe connection to 12V/15V analog or legacy logic without external voltage limiting. |
| Propagation Delay (tPLH/tPHL) | 6ns typical at VCC = 5V, CL = 15pF - ensures minimal timing skew in high-speed data path buffering. |
| Output Drive | ±25mA per output - sufficient to drive multiple LSTTL inputs or moderate capacitive loads (≤50pF). |
| Operating Temperature | –55°C to +125°C - qualified for under-hood automotive, industrial control, and aerospace environments. |
| Input Leakage (II) | ±1µA max at 6V and 125°C - preserves signal integrity in high-impedance sensing or battery-powered nodes. |
| Power Dissipation Cap. (CPD) | 35pF at 5V - enables accurate dynamic power estimation (PD = VCC² × fi × (CPD + CL)) for thermal design. |
Pinout & Package
CD74HC4050E is housed in a 16-pin plastic dual in-line package (PDIP-N), with 0.3-inch body width and standard through-hole footprint compatible with industry-standard sockets and PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A, 5A, 6A | Input terminals for buffers 1–6 | Accept logic signals up to 16V; internally protected against negative ESD transients. |
| 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Non-inverting output terminals | Replicate input logic state with rail-to-rail swing (0V to VCC); each drives ≥10 LSTTL loads. |
| VCC | Positive supply | Must be decoupled locally; supports 2V–6V; powers all six buffers and internal protection circuitry. |
| GND | Ground reference | Common return for all I/O and supply; requires low-impedance connection to minimize noise coupling. |
| NC (Pins 9 & 11) | No-connect terminals | Internally unconnected; must remain floating - no routing or soldering permitted. |
Key Features
| Feature | Design Value |
|---|---|
| High-Voltage Input Translation | Converts 15V logic signals to 0–VCC output levels without external components - eliminates level-shifter ICs or resistor dividers. |
| Rail-to-Rail Output Swing | Outputs swing fully from GND to VCC - ensures robust noise margin when driving downstream CMOS or TTL inputs. |
| Extended Temperature Operation | Guaranteed functionality from –55°C to +125°C - suitable for engine control units, motor drives, and outdoor instrumentation. |
| Low Dynamic Power Consumption | CPD = 35pF enables sub-mW operation at 1MHz with 50pF load - reduces thermal load in dense logic assemblies. |
| ESD-Tolerant Input Structure | Modified protection diodes withstand negative electrostatic discharge - improves reliability during manual handling and board insertion. |
Applications
| Industrial Sensor Interface | Legacy System Integration |
|---|---|
|
Use Scenario: Interfacing 12V analog sensor outputs or open-collector switches to a 3.3V microcontroller ADC or GPIO. IC Role / Device Role / Timing Role: Non-inverting level translator and signal conditioner that isolates high-voltage domains while preserving logic polarity and timing integrity. Use Value: Eliminates need for discrete resistor dividers or dedicated level translators, reducing BOM count and layout area while maintaining <6ns propagation delay. |
Use Scenario: Connecting 15V-rated industrial PLC outputs to modern 5V FPGA I/O banks or CPLD configuration pins. IC Role / Device Role / Timing Role: Robust input buffer that accepts 15V logic-high signals and delivers clean 0–5V CMOS-compatible outputs with matched rise/fall times. Use Value: Prevents damage to low-voltage logic while ensuring setup/hold timing compliance due to balanced transition characteristics. |
| Automotive Body Control | Test Equipment Signal Conditioning |
|
Use Scenario: Buffering wake-up signals from 12V vehicle bus lines into low-power 3.3V CAN controller sleep/wake circuits. IC Role / Device Role / Timing Role: High-reliability interface buffer with extended temperature rating and low quiescent current (≤40µA at 125°C). Use Value: Enables direct connection to battery-supplied lines without voltage regulators or transient suppressors, simplifying power domain isolation. |
Use Scenario: Conditioning TTL/CMOS test patterns from arbitrary waveform generators before injection into DUTs with mixed-voltage I/O requirements. IC Role / Device Role / Timing Role: Precision timing buffer that preserves edge fidelity and minimizes jitter accumulation across multiple stages. Use Value: Delivers consistent 6ns delay and <22ns max transition time across –55°C to +125°C - critical for repeatability in production test fixtures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar non-inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVTH16244DGGR | 16-bit, 3-state, 3.3V-only supply; no >6V input tolerance. | Requires separate 3.3V rail and external level shifting for >3.3V inputs. | Preferred only when bus-hold or 3-state control is required and input voltage stays ≤3.6V. |
| CD74HC4049E | Inverting hex buffer; identical pinout, package, and voltage ratings. | Requires logic inversion in system firmware or additional gate stages to maintain signal polarity. | Select when signal inversion is acceptable or desired - otherwise CD74HC4050E is the functional match. |
Compared with SN74LVTH16244DGGR and CD74HC4049E, the CD74HC4050E uniquely combines non-inverting operation, 16V input tolerance, and PDIP-16 through-hole compatibility - making it the only drop-in solution for retrofitting legacy 15V logic into modern low-voltage controllers without redesigning signal paths or adding passive components.
Availability
CD74HC4050E is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and legacy system integration requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD74HC4050E 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 with decades of high-reliability IC development.
The CD74HC4050E belongs to TI's HC-series high-speed CMOS logic family, engineered for robust level translation and noise-immune buffering in harsh industrial and automotive environments.
FAQ
What is the maximum input voltage the CD74HC4050E can safely accept?
The CD74HC4050E supports an absolute maximum input voltage range of –0.5V to +16V, verified per its Absolute Maximum Ratings table. This allows direct connection to 12V or 15V logic sources without external clamping, provided VCC is within 2V–6V. Exceeding +16V risks permanent damage to the input protection structure.
Does the CD74HC4050E require external pull-up or pull-down resistors on unused inputs?
No - the CD74HC4050E does not require external termination on unused inputs. Its CMOS inputs have negligible leakage (≤±1µA), and floating inputs are electrically stable. However, for best noise immunity in high-EMI environments, tying unused inputs to VCC or GND is recommended, not required.
Can the CD74HC4050E be used as a level shifter between 15V and 3.3V logic domains?
Yes - the CD74HC4050E is explicitly designed for this function. With VCC = 3.3V, it accepts 15V inputs and produces 0–3.3V outputs. Its modified input protection structure prevents latch-up or damage, and propagation delay remains within specification (≤26ns at 3.3V/50pF), making it suitable for bidirectional signal conditioning in mixed-voltage systems.
Is the CD74HC4050E pin-compatible with the CD74HC4049E?
Yes - the CD74HC4050E and CD74HC4049E share identical PDIP-16 pinouts, supply requirements, and thermal specifications. The only functional difference is inversion: CD74HC4049E outputs are inverted relative to inputs, while CD74HC4050E outputs are non-inverted. Swapping them requires verifying signal polarity in the target application.
What is the thermal resistance (θJA) of the CD74HC4050E in its PDIP package?
The CD74HC4050E in the PDIP (N) package has a specified junction-to-ambient thermal resistance (θJA) of 67°C/W, per TI's Thermal Information table. This value assumes standard JEDEC 2-layer board conditions and guides thermal design for continuous operation at maximum ambient temperature (125°C) and worst-case power dissipation.
CD74HC4050E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
CD74HC4050E FAQ
1.How can I place an order for CD74HC4050E through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HC4050E 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 CD74HC4050E reliable?
The price and inventory of CD74HC4050E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HC4050E is usually 5 days.
3.What payment methods are accepted for CD74HC4050E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HC4050E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74HC4050E?
CD74HC4050E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HC4050E 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 CD74HC4050E?
For technical support, including CD74HC4050E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HC4050E requirements.
6.How does Aetrix verify that CD74HC4050E is sourced from the original manufacturer or authorized distributors?
All CD74HC4050E 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 CD74HC4050E meets industry standards.
7.What is the process for return or replacement of CD74HC4050E?
All CD74HC4050E units undergo pre-shipment inspection (PSI). If there is an issue with CD74HC4050E, 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 CD74HC4050E part is unused and in its original packaging.
Return procedure for CD74HC4050E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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