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Texas Instruments CD74HC4050PW
- Part No.:
- CD74HC4050PW
- Manufacturer:
- Texas Instruments
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CD74HC4050PW.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:236
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Product details
Overview
CD74HC4050PW 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 15V (with modified input protection), 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-3.3V/5V level-shifting applications.
For engineers reviewing the CD74HC4050PW datasheet, CD74HC4050PW pinout, CD74HC4050PW application, or CD74HC4050PW equivalent, key selection criteria include its high-to-low voltage translation capability, TSSOP-16 package thermal performance (θJA = 108°C/W), LSTTL fanout compatibility (10 loads), and absence of inversion in signal path - critical for bidirectional bus drivers and analog front-end interface isolation.
Technical Context
The CD74HC4050PW implements six independent non-inverting buffer channels using high-speed silicon-gate CMOS technology. Its modified input protection structure enables safe operation with input voltages up to 15V while powered from a lower VCC (e.g., 3.3V or 5V), making it suitable for down-conversion without external resistors or diodes.
Each buffer provides rail-to-rail output swing (0V to VCC), supports ±25mA output drive per channel, and maintains balanced tPLH/tPHL and transition times across temperature. It is not compatible with TTL input thresholds - VIH/VIL are CMOS-ratio-based (30% noise immunity) and require proper VCC-referenced logic levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - Enables direct interfacing with 3.3V and 5V microcontrollers without level-shifter ICs. |
| Max Input Voltage (VI) | 15V - Allows connection to 12V/15V legacy control signals while operating from low-voltage rails. |
| Propagation Delay | 6ns typical at VCC = 5V, CL = 15pF - Supports >30MHz digital signal buffering in timing-critical paths. |
| Output Drive | ±25mA per channel - Sufficient to drive multiple LSTTL loads (10) or moderate capacitive loads (<50pF). |
| Operating Temperature | –55°C to +125°C - Qualified for extended industrial, automotive under-hood, and aerospace environments. |
| Input Leakage | ±1µA max at 6V - Ensures minimal loading on high-impedance sources such as DAC outputs or sensor amplifiers. |
| Power Dissipation Cap. | 35pF at 5V - Used to calculate dynamic power: PD = VCC² × fi × (CPD + CL), critical for thermal budgeting. |
Pinout & Package
TSSOP-16 package (PW suffix): 4.4mm × 5.0mm body, 0.65mm pitch, exposed pad not present, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A, 5A, 6A | Buffer Input | Independent CMOS-compatible inputs accepting 0V–15V; no internal pull-up/down. |
| 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Buffer Output | Non-inverting, rail-to-rail CMOS outputs referenced to VCC; each drives one load independently. |
| VCC | Positive Supply | Primary power rail (2V–6V); all outputs swing between GND and this voltage. |
| GND | Ground Reference | Common return for supply and logic reference; must be low-impedance for noise immunity. |
| NC (Pins 8, 11) | No Connect | Internally unconnected; must remain floating - no routing or grounding permitted. |
Key Features
| Feature | Design Value |
|---|---|
| High-to-Low Level Translation | Converts 15V input signals to 0–VCC logic levels without external components - eliminates resistor dividers in mixed-supply systems. |
| Enhanced ESD Protection | Modified input structure withstands negative electrostatic discharge - reduces need for external TVS diodes in ruggedized I/O designs. |
| Wide Temperature Operation | –55°C to +125°C range validated per MIL-PRF-38535 - supports deployment in unheated outdoor enclosures and engine control units. |
| Low Quiescent Current | ICC ≤ 40µA max over full temperature range - enables use in always-on monitoring circuits with battery backup. |
| CMOS Noise Immunity | 30% noise margin (NIL/NIL) at VCC = 5V - improves reliability in electrically noisy industrial PLC backplanes. |
Applications
| Industrial Sensor Interface | Legacy System Integration |
|---|---|
|
Use Scenario: Interfacing 12V analog sensor outputs or switch signals to a 3.3V microcontroller ADC or GPIO. IC Role / Device Role / Timing Role: Non-inverting level translator and buffer - preserves signal polarity and timing integrity while scaling voltage domain. Use Value: Eliminates discrete resistor-divider networks and associated calibration drift; maintains <6ns propagation delay for time-sensitive edge detection. |
Use Scenario: Connecting 15V RS-232 control lines or relay driver outputs to modern 5V FPGA I/O banks. IC Role / Device Role / Timing Role: High-voltage tolerant input conditioner - isolates legacy logic from low-voltage core without inversion or added latency. Use Value: Prevents damage from 15V transients on 5V-tolerant FPGA pins; avoids need for external clamping diodes or series resistors. |
| Automotive Body Control | Test Equipment Signal Conditioning |
|
Use Scenario: Buffering LIN bus wake-up pulses or door-lock actuator feedback signals in vehicle body modules. IC Role / Device Role / Timing Role: Robust signal repeater - handles wide ambient temperature swings and supply ripple common in 12V automotive systems. Use Value: Guaranteed operation at –40°C to +125°C ambient; ±25mA drive sustains signal integrity across long PCB traces in distributed ECUs. |
Use Scenario: Isolating DUT signals from automated test equipment during functional validation of mixed-voltage boards. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional buffer - prevents back-driving of sensitive instrument outputs during device power-up sequencing. Use Value: Input tolerance up to 15V protects ATE source channels; non-inverting behavior ensures deterministic pass/fail correlation in test scripts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar non-inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G17DBVR | Single-channel Schmitt-trigger buffer; 1.65V–5.5V VCC; max VI = VCC + 0.5V (no 15V tolerance). | Limited to single-signal conditioning; lacks high-voltage input capability - unsuitable for 12V/15V legacy interface. | Select only when signal conditioning requires hysteresis and input voltage stays within VCC + 0.5V. |
| CD74HC4050M96 | Same logic function and specs; SOIC-16 package (4.4mm × 9.9mm) with θJA = 73°C/W - lower thermal resistance than TSSOP. | Better thermal performance in high-density layouts; larger footprint may conflict with space-constrained designs. | Prefer for thermally demanding applications where board area allows SOIC; CD74HC4050PW remains optimal for compact TSSOP layouts. |
Compared with SN74LVC1G17DBVR, CD74HC4050PW offers true 15V input tolerance and six independent buffers in one package; compared with CD74HC4050M96, it trades thermal efficiency for 40% smaller PCB area - critical for portable instrumentation and modular sensor nodes.
Availability
CD74HC4050PW 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 mixed-voltage signal domains.
Supply support for CD74HC4050PW 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 experience in high-reliability logic and interface solutions.
The CD74HC4050PW belongs to TI's HC-series high-speed CMOS logic family, engineered for robust level translation and signal integrity in harsh industrial and automotive environments - not general-purpose logic but purpose-built for voltage-domain bridging.
FAQ
What is the maximum input voltage rating for CD74HC4050PW?
The CD74HC4050PW supports DC input voltages up to 15V regardless of VCC level - a key feature enabled by its modified input protection structure. This allows direct connection to 12V or 15V control signals while operating from 3.3V or 5V supplies. Exceeding 15V risks permanent damage, and inputs below –0.5V also violate absolute maximum ratings. The CD74HC4050PW data sheet specifies this limit in the Absolute Maximum Ratings table under "Input Voltage Range".
Can CD74HC4050PW be used as a level shifter between 15V and 3.3V logic domains?
Yes, CD74HC4050PW is explicitly designed for high-to-low voltage level translation - for example, converting 15V input pulses to 0–3.3V output levels when VCC = 3.3V. Its input structure tolerates up to 15V while referencing outputs to VCC, eliminating external resistive dividers. However, it does not support bidirectional translation or low-to-high conversion; the CD74HC4050PW must be powered from the target low-voltage rail (e.g., 3.3V) to achieve correct output swing.
Is CD74HC4050PW pin-compatible with CD74HC4049PW?
No, CD74HC4050PW and CD74HC4049PW are not pin-compatible. While both are 16-pin TSSOP devices with identical power and ground pin locations (Pin 16 = VCC, Pin 8 = GND), their signal pin assignments differ: CD74HC4049PW contains six inverting buffers (A→Y inversion), whereas CD74HC4050PW provides six non-inverting buffers. The pinout diagram confirms complementary terminal mapping - e.g., Pin 1 is 1A on CD74HC4050PW but 1Y on CD74HC4049PW. Substituting one for the other will invert all signals.
What is the thermal performance of CD74HC4050PW in its TSSOP package?
The CD74HC4050PW in TSSOP-16 (PW package) has a junction-to-ambient thermal resistance (θJA) of 108°C/W, as specified in the Thermal Information table. This value assumes standard JEDEC high-K board conditions (2s2p). In practice, this means that at 25°C ambient and 100mW total power dissipation, the junction temperature rises by ~10.8°C. For high-power or high-ambient applications, derating or supplemental copper pour is recommended - the CD74HC4050PW's plastic package has a maximum junction temperature of 150°C.
Does CD74HC4050PW support operation at 2.5V VCC?
Yes, CD74HC4050PW is fully specified for VCC = 2V to 6V, including 2.5V operation. At 2.5V, DC parameters such as VOH (min 2.4V), VOL (max 0.1V), VIH (min 1.7V), and VIL (max 0.75V) remain valid across –55°C to +125°C. Propagation delay increases to ~26ns (max) at CL = 50pF, but the CD74HC4050PW retains full functionality and noise immunity (30% of VCC) - making it suitable for ultra-low-power 2.5V systems like portable medical sensors.
CD74HC4050PW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- 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
CD74HC4050PW FAQ
1.How can I place an order for CD74HC4050PW through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HC4050PW 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 CD74HC4050PW reliable?
The price and inventory of CD74HC4050PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HC4050PW is usually 5 days.
3.What payment methods are accepted for CD74HC4050PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HC4050PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74HC4050PW?
CD74HC4050PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HC4050PW 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 CD74HC4050PW?
For technical support, including CD74HC4050PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HC4050PW requirements.
6.How does Aetrix verify that CD74HC4050PW is sourced from the original manufacturer or authorized distributors?
All CD74HC4050PW 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 CD74HC4050PW meets industry standards.
7.What is the process for return or replacement of CD74HC4050PW?
All CD74HC4050PW units undergo pre-shipment inspection (PSI). If there is an issue with CD74HC4050PW, 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 CD74HC4050PW part is unused and in its original packaging.
Return procedure for CD74HC4050PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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