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Texas Instruments CD74HC4050PWR
- Part No.:
- CD74HC4050PWR
- Manufacturer:
- Texas Instruments
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CD74HC4050PWR.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:13,378
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Product details
Overview
CD74HC4050PWR from Texas Instruments is a non-inverting hex buffer IC designed for high-to-low voltage level translation, supporting input voltages up to 15 V while operating from a 2–6 V supply. It delivers 6 ns typical propagation delay at 5 V/15 pF, operates across –55°C to +125°C, and drives up to 15 LSTTL loads - ideal for interfacing legacy 15 V logic with modern 3.3 V or 5 V microcontrollers.
For engineers reviewing the CD74HC4050PWR datasheet, CD74HC4050PWR pinout, CD74HC4050PWR application, or CD74HC4050PWR equivalent, key selection considerations include its unidirectional level-shifting capability, TSSOP-16 package thermal performance (θJA = 108°C/W), rail-to-rail output swing, and compatibility with mixed-voltage industrial control and sensor signal conditioning circuits.
Technical Context
The CD74HC4050PWR implements six independent non-inverting buffer channels using silicon-gate CMOS technology with modified input protection that enables safe operation with input voltages exceeding VCC - up to 15 V DC. Its input structure clamps negative ESD transients without requiring external diodes.
Each buffer provides symmetrical propagation delay (tPLH/tPHL) and transition times (tTLH/tTHL) across temperature, ensuring predictable timing in clock distribution and data bus isolation. The device draws only 2 µA typical quiescent current at 6 V, enabling low-power operation in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - supports direct interface with 3.3 V and 5 V logic domains without external regulators. |
| Max Input Voltage | 15 V - allows direct connection to legacy 12 V/15 V logic families (e.g., TTL, NMOS) while powered from lower VCC. |
| Propagation Delay | 6 ns typical at VCC = 5 V, CL = 15 pF - enables reliable operation in high-speed digital control loops up to ~50 MHz. |
| Output Drive | ±25 mA per channel - sufficient to drive 15 LSTTL loads or terminate short PCB traces without buffering. |
| Operating Temperature | –55°C to +125°C - qualified for under-hood automotive, industrial motor drives, and aerospace subsystems. |
| Input Leakage | ±0.1 µA max at 25°C - minimizes loading on high-impedance sources such as potentiometers or sensor outputs. |
| Power Dissipation Cap. | 35 pF - used to calculate dynamic power: PD = VCC2 × fi × (CPD + CL). |
Pinout & Package
TSSOP-16 package (PW), 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed pad not present, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | CMOS-compatible inputs accepting 0–15 V; internally protected against negative ESD and overvoltage. |
| 2, 4, 6, 10, 12, 14 | Output (1Y–6Y) | Non-inverting buffered outputs swinging rail-to-rail (0 V to VCC) with ±25 mA drive capability. |
| 7 | GND | Ground reference for all I/O and internal circuitry; must be low-impedance for noise immunity. |
| 16 | VCC | Positive supply (2–6 V); powers internal logic and defines output high level; bypass capacitor required. |
| 8, 15 | NC | No-connect terminals - left unconnected per TI design; no internal connection or function. |
Key Features
| Feature | Design Value |
|---|---|
| High-to-low level translation | Converts 15 V input signals to 0–VCC logic levels without external components - eliminates need for discrete resistor-divider networks. |
| Balanced propagation delay | tPLH ≈ tPHL ensures minimal duty-cycle distortion in clock or PWM signal buffering applications. |
| Enhanced ESD protection | Modified input clamp structure withstands negative electrostatic discharge without latch-up or degradation - reduces system-level ESD design overhead. |
| Low quiescent power | ICC ≤ 20 µA over full temperature range - extends battery life in portable instrumentation and remote sensors. |
| Wide noise margin | NIL/NIL = 30% of VCC at 5 V - rejects >1.5 V of coupled noise on input lines in electrically noisy industrial environments. |
Applications
| Industrial PLC I/O Interface | Automotive Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Interfacing 12 V analog sensor outputs or switch inputs to a 3.3 V microcontroller ADC or GPIO. IC Role / Device Role / Timing Role: Non-inverting level translator and buffer isolating high-voltage field-side signals from low-voltage controller domain. Use Value: Eliminates external voltage dividers and pull-up resistors, reducing BOM count and PCB area while maintaining signal integrity across –40°C to +125°C. |
Use Scenario: Converting 5 V or 12 V CAN/LIN bus wake-up pulses or diagnostic signals to 3.3 V MCU-compatible logic levels. IC Role / Device Role / Timing Role: Unidirectional input buffer translating legacy vehicle network logic to modern low-voltage SoC inputs. Use Value: Supports fast edge rates (≤6 ns delay) required for accurate pulse-width detection in engine control modules without timing skew. |
| Mixed-Voltage Data Acquisition | Legacy Equipment Retrofit |
|
Use Scenario: Buffering multiplexed analog front-end control lines (e.g., PGA gain select, filter cutoff) driven by 5 V DACs into 3.3 V FPGA I/O banks. IC Role / Device Role / Timing Role: Hex non-inverting driver providing fanout and voltage-domain bridging for parallel control buses. Use Value: Delivers 15 LSTTL load drive per channel - sufficient to drive multiple FPGA pins or small-signal relays without signal degradation. |
Use Scenario: Replacing obsolete 74LS240 or 74ALS240 in aging test equipment where 15 V logic coexists with newer 5 V logic sections. IC Role / Device Role / Timing Role: Pin-compatible drop-in replacement offering CMOS power savings and extended temperature operation. Use Value: Maintains identical pinout and logic function while reducing board-level power dissipation by >90% versus LSTTL equivalents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar non-inverting level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVCH16244A | 16-bit, 3-state, 1.65–3.6 V supply; no >VCC input tolerance. | Requires external level shifters for >3.6 V inputs; suited for bidirectional bus isolation, not high-voltage down-translation. | Select when driving 3.3 V buses with 3-state control, but not for 12 V → 3.3 V translation. |
| TXB0106 | 6-channel auto-direction sensing; supports bidirectional translation; max 5.5 V I/O; no >VCC input rating. | Designed for I²C/SPI level shifting between 1.8 V and 5 V domains; unsuitable for 12 V input scenarios. | Choose for bidirectional protocols with matched supply rails; avoid where unidirectional 15 V inputs exist. |
Compared with SN74LVCH16244A and TXB0106, the CD74HC4050PWR uniquely supports true unidirectional high-voltage down-translation (up to 15 V) into sub-6 V logic domains without external components - making it irreplaceable in legacy interface and industrial sensor conditioning where input overvoltage resilience is mandatory.
Availability
CD74HC4050PWR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive sensor interfaces, mixed-voltage data acquisition systems, and legacy equipment retrofits requiring stable component supply across extended temperature ranges.
Supply support for CD74HC4050PWR 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 connectivity technologies, with decades of heritage in logic and interface solutions.
The CD74HC4050PWR belongs to TI's High-Speed CMOS Logic family, engineered specifically for robust voltage-level translation and signal buffering in harsh industrial and automotive environments where reliability and wide temperature operation are critical.
FAQ
What is the maximum input voltage the CD74HC4050PWR can safely accept?
The CD74HC4050PWR supports a DC input voltage range of –0.5 V to 15 V, verified per Absolute Maximum Ratings in the TI datasheet (SCHS205I). This allows direct connection to 12 V or 15 V logic sources while powered from as low as 2 V - a key differentiator from standard CMOS buffers. Exceeding 15 V risks permanent damage.
Is the CD74HC4050PWR pin-compatible with the CD74HC4049PWR?
No - the CD74HC4050PWR (non-inverting hex buffer) and CD74HC4049PWR (inverting hex buffer) share identical pinout and package (TSSOP-16), but their logic functions differ per channel. Swapping them requires inverting all input signals or redesigning downstream logic; they are functional complements, not drop-in replacements.
Can the CD74HC4050PWR be used for bidirectional level shifting?
No - the CD74HC4050PWR is strictly unidirectional: inputs accept 0–15 V, outputs swing 0–VCC. It lacks auto-direction sensing or bus-hold circuitry. For bidirectional translation (e.g., I²C), dedicated devices like TXB0106 or PCA9306 are required; CD74HC4050PWR must be used in one-way signal paths only.
What is the thermal resistance (θJA) of the CD74HC4050PWR in its TSSOP package?
The CD74HC4050PWR in the PW (TSSOP-16) package has a specified junction-to-ambient thermal resistance (θJA) of 108°C/W, per TI's Thermal Information table. This value assumes standard JEDEC 2-layer board conditions; actual performance improves with copper pour and thermal vias under the exposed pad (though no thermal pad is present in this variant).
Does the CD74HC4050PWR require external pull-up or pull-down resistors on unused inputs?
Yes - unused inputs on the CD74HC4050PWR must be tied to VCC or GND. Floating CMOS inputs cause increased ICC, noise susceptibility, and potential oscillation. TI recommends connecting each unused A-input directly to VCC or GND; leaving them open violates recommended handling procedures and risks erratic behavior in the CD74HC4050PWR.
CD74HC4050PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
CD74HC4050PWR FAQ
1.How can I place an order for CD74HC4050PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HC4050PWR 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 CD74HC4050PWR reliable?
The price and inventory of CD74HC4050PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HC4050PWR is usually 5 days.
3.What payment methods are accepted for CD74HC4050PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HC4050PWR transactions.
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4.How is shipping managed for CD74HC4050PWR?
CD74HC4050PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HC4050PWR 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 CD74HC4050PWR?
For technical support, including CD74HC4050PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HC4050PWR requirements.
6.How does Aetrix verify that CD74HC4050PWR is sourced from the original manufacturer or authorized distributors?
All CD74HC4050PWR 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 CD74HC4050PWR meets industry standards.
7.What is the process for return or replacement of CD74HC4050PWR?
All CD74HC4050PWR units undergo pre-shipment inspection (PSI). If there is an issue with CD74HC4050PWR, 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 CD74HC4050PWR part is unused and in its original packaging.
Return procedure for CD74HC4050PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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