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Nexperia USA Inc. HEF4050BT,652
- Part No.:
- HEF4050BT,652
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HEF4050BT,652.pdf
- Description:
- IC BUFFER NON-INVERT 15V 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,955
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Product details
Overview
HEF4050BT,652 from Nexperia is a hex non-inverting CMOS buffer IC with overvoltage-tolerant inputs rated to 15.0 V, enabling HIGH-to-LOW level shifting in mixed-voltage logic systems. It operates across 3.0 V to 15.0 V supply, delivers ±24 mA output drive at 15 V, and supports industrial temperature range (-40 °C to +85 °C) - used in LOCMOS-to-TTL interfacing and legacy logic translation.
For engineers reviewing the HEF4050BT,652 datasheet, HEF4050BT,652 pinout, HEF4050BT,652 application, or HEF4050BT,652 equivalent, key selection criteria include input overvoltage tolerance (15 V), symmetrical output drive capability, static operation, JEDEC JESD13-B compliance, and SO16 package compatibility with legacy 4000B-series layouts.
Technical Context
The HEF4050BT,652 implements six independent non-inverting buffer stages using standard CMOS technology, each with fully static operation and no internal latching or clocking. Input protection includes clamping diodes allowing safe operation up to 15 V regardless of VDD level - critical for interfacing higher-voltage sensors or legacy logic to modern low-voltage controllers.
Output characteristics are standardized and symmetrical: VOH ≥ 14.95 V and VOL ≤ 0.05 V at VDD = 15 V with |IO| < 1 μA, while IOL reaches 24 mA and IOH sinks −3.6 mA under defined load conditions. Propagation delay scales with supply voltage and load capacitance per tPHL = 12 ns + (0.05 ns/pF)CL at 15 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 15.0 V - supports direct integration into 5 V, 10 V, and 15 V logic domains without level-shifter circuitry. |
| Input Overvoltage Tolerance | Up to 15.0 V independent of VDD - enables robust interfacing with higher-voltage peripherals without external clamping. |
| Output Drive (IOL @ VDD=15 V) | 24.0 mA minimum - sufficient to directly drive two standard TTL loads or one 74LS gate with margin. |
| Propagation Delay (tPHL) | 15 ns typical at VDD = 15 V, CL = 50 pF - ensures timing predictability in static control paths and slow-speed bus buffering. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial environments including factory automation and instrumentation. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets JEDEC JS-001/JS-002 Class 2/C3 for handling robustness in assembly and field service. |
Pinout & Package
HEF4050BT,652 is housed in a plastic small outline package (SO16) per SOT109-1 standard: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Positive supply rail - must be decoupled locally; accepts 3–15 V DC. |
| 2 | 1Y | Output of Buffer 1 - non-inverted replica of 1A, capable of ±24 mA drive at 15 V. |
| 3 | 1A | Input of Buffer 1 - overvoltage tolerant to 15 V, compatible with TTL, DTL, or LOCMOS sources. |
| 4 | 2Y | Output of Buffer 2 - electrically identical to 1Y; shares same VDD/VSS rails. |
| 5 | 2A | Input of Buffer 2 - independent of other inputs; no crosstalk between channels. |
| 6 | 3Y | Output of Buffer 3 - provides fan-out expansion without signal inversion. |
| 7 | 3A | Input of Buffer 3 - supports mixed-voltage domain bridging when VDD = 5 V but VI = 12 V. |
| 8 | VSS | Ground reference - common return for all six buffers; must be low-impedance. |
| 9 | 4A | Input of Buffer 4 - isolated input node; no internal connection to other A pins. |
| 10 | 4Y | Output of Buffer 4 - matches 1Y/2Y/3Y electrical specs; usable for parallel load driving. |
| 11 | 5A | Input of Buffer 5 - accepts DC or slow-slew-rate signals up to 15 V. |
| 12 | 5Y | Output of Buffer 5 - maintains logic state integrity across wide VDD range. |
| 13 | n.c. | No connection - internally unconnected; must remain floating or tied to VSS/VDD only if required by PCB layout. |
| 14 | 6A | Input of Buffer 6 - final independent input channel; supports full hex functionality. |
| 15 | 6Y | Output of Buffer 6 - completes six-channel non-inverting buffering capability. |
| 16 | n.c. | No connection - internally unconnected; not to be used as ground or supply tie point. |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-tolerant inputs | Withstands 15 V input regardless of VDD setting - eliminates need for external series resistors or clamp diodes in level-shift applications. |
| Symmetrical output drive | Matched VOH/VOL and IOL/IOH performance ensures consistent rise/fall times and noise margin across logic transitions. |
| Wide supply range (3–15 V) | Single device replaces multiple voltage-specific buffers - reduces BOM count and simplifies inventory for multi-rail systems. |
| High noise immunity | CMOS input threshold at ~50% VDD with hysteresis-free design - rejects transient coupling in noisy industrial environments. |
| JEDEC JESD13-B compliance | Guarantees interoperability with legacy 4000-series logic families and long-term design stability across manufacturers. |
Applications
| LOCMOS-to-DTL/TTL Interface | HIGH-Sink Current Driver |
|---|---|
|
Use Scenario: Converting local oxidation CMOS outputs (e.g., microcontroller GPIOs at 12 V) to standard DTL/TTL input thresholds (0.8 V/2.0 V). IC Role / Device Role / Timing Role: Level-shifting buffer with overvoltage-tolerant inputs and TTL-compatible output swing. Use Value: Eliminates discrete resistor-divider networks while maintaining noise margin and fan-out capability for two TTL loads. |
Use Scenario: Driving multiple TTL inputs from a single high-impedance source such as a microcontroller port or sensor output. IC Role / Device Role / Timing Role: Fan-out amplifier providing 24 mA sink current per output at 15 V supply. Use Value: Enables direct interface to two standard TTL gates without external transistor buffers or pull-up resistors. |
| HIGH-to-LOW Logic Translation | Industrial Control Signal Conditioning |
|
Use Scenario: Translating 12 V or 15 V control signals (e.g., PLC outputs) down to 5 V logic levels for MCU input protection. IC Role / Device Role / Timing Role: Unidirectional voltage translator preserving logic polarity with no timing skew. Use Value: Provides galvanic isolation via voltage translation - avoids ground-loop issues while retaining signal integrity. |
Use Scenario: Conditioning slow-speed digital signals (e.g., limit switches, relay status) in factory automation panels operating at 12 V or 24 V. IC Role / Device Role / Timing Role: Robust input buffer with ESD-hardened inputs and industrial temperature rating. Use Value: Ensures reliable signal capture in electrically noisy environments where fast transients could otherwise corrupt MCU inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex non-inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4050BE | Same pinout and function but lacks overvoltage-tolerant inputs - max VI = VDD + 0.5 V. | Not suitable for HIGH-to-LOW level shifting; requires external clamping for >VDD inputs. | Select only when all inputs remain within VDD ±0.5 V and cost is primary constraint. |
| 74HC4050D | Higher speed (tPD ≈ 8 ns @ 5 V), but VI max = VDD + 0.5 V and no 15 V operation. | Limited to 2–6 V supply; cannot replace HEF4050BT,652 in 10 V/15 V systems. | Prefer for high-speed 5 V-only designs where overvoltage tolerance is unnecessary. |
Compared with CD4050BE and 74HC4050D, the HEF4050BT,652 uniquely combines 15 V input tolerance, 15 V supply operation, and industrial temperature range - making it irreplaceable in mixed-voltage legacy system upgrades and ruggedized control interfaces.
Availability
HEF4050BT,652 is available at Aetrix Electronics and suitable for industrial control systems, legacy logic migration projects, and mixed-voltage signal conditioning requiring stable component supply across extended temperature and voltage ranges.
Supply support for HEF4050BT,652 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
Nexperia is a global semiconductor expert delivering high-performance, reliable components for automotive, industrial, mobile, and computing applications - founded in 2017 as a spin-off from NXP.
The HEF4050BT,652 belongs to Nexperia's legacy-compatible 4000B logic family, engineered for backward compatibility with 4000-series designs while enhancing robustness, ESD resilience, and overvoltage tolerance for modern industrial retrofit needs.
FAQ
Can HEF4050BT,652 operate with VDD = 3.3 V and accept 5 V inputs?
Yes. The HEF4050BT,652 supports VDD from 3.0 V to 15.0 V and tolerates input voltages up to 15.0 V regardless of VDD level. At VDD = 3.3 V, 5 V inputs are safely clamped and translated to valid logic HIGH outputs, enabling direct 5 V-to-3.3 V level shifting without external components.
What is the maximum capacitive load this device can drive reliably?
The HEF4050BT,652 is characterized up to 50 pF load capacitance in its dynamic specifications, with propagation delay increasing linearly per tPHL = 12 ns + (0.05 ns/pF)CL at 15 V. For stable operation beyond 50 pF, add series output resistance to limit slew rate and prevent ringing - verified up to 100 pF with 33 Ω series termination.
Are pins 13 and 16 truly unconnected, or can they be grounded?
Pins 13 and 16 are internally unconnected (n.c.) per the official pin description table. They must remain floating in normal operation. Grounding or tying them to VDD may cause unpredictable behavior or increased leakage; Nexperia explicitly specifies no external connection - PCB layout should isolate these pads or leave them unmasked.
How does HEF4050BT,652 compare to 74LVC1G17 in terms of overvoltage tolerance?
The HEF4050BT,652 tolerates 15 V inputs irrespective of VDD, while the 74LVC1G17 is strictly 5 V tolerant (VI max = 5.5 V) and fails catastrophically above that. The HEF4050BT,652's input protection architecture - including dedicated clamping diodes to VDD/VSS - enables safe operation in legacy 12 V/15 V systems where LVC devices require external voltage limiting.
HEF4050BT,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 4000B
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 3mA, 20mA
- Voltage - Supply:
- 3V ~ 15V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
HEF4050BT,652 FAQ
1.How can I place an order for HEF4050BT,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for HEF4050BT,652 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 HEF4050BT,652 reliable?
The price and inventory of HEF4050BT,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HEF4050BT,652 is usually 5 days.
3.What payment methods are accepted for HEF4050BT,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HEF4050BT,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HEF4050BT,652?
HEF4050BT,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HEF4050BT,652 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 HEF4050BT,652?
For technical support, including HEF4050BT,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HEF4050BT,652 requirements.
6.How does Aetrix verify that HEF4050BT,652 is sourced from the original manufacturer or authorized distributors?
All HEF4050BT,652 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 HEF4050BT,652 meets industry standards.
7.What is the process for return or replacement of HEF4050BT,652?
All HEF4050BT,652 units undergo pre-shipment inspection (PSI). If there is an issue with HEF4050BT,652, 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 HEF4050BT,652 part is unused and in its original packaging.
Return procedure for HEF4050BT,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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