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STMicroelectronics HCF4075BEY
- Part No.:
- HCF4075BEY
- Manufacturer:
- STMicroelectronics
- Category:
- Gates and Inverters
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
HCF4075BEY.pdf
- Description:
- IC GATE OR 3CH 3-INP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,528
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Product details
Overview
HCF4075BEY from STMicroelectronics is a triple 3-input OR gate IC in CMOS B-series technology, operating across 3–20 V supply, with typical propagation delay of 60 ns at 10 V, output drive capability up to ±6.8 mA, and input leakage ≤100 nA at 18 V - used for discrete logic implementation in industrial control panels and power management sequencers.
For engineers reviewing the HCF4075BEY datasheet, HCF4075BEY pinout, HCF4075BEY application, or HCF4075BEY equivalent, key selection criteria include supply voltage range (3–20 V), guaranteed noise margin (≥2.5 V at 15 V), output current capability (±6.8 mA), temperature rating (–55°C to +125°C), and DIP-14 package compatibility with legacy through-hole PCB layouts.
Technical Context
The HCF4075BEY implements three independent positive-logic OR gates using standard CMOS B-series process, supporting rail-to-rail input and output swing. Each gate accepts three inputs and drives one complementary CMOS output with symmetrical sourcing/sinking capability.
It operates over extended temperature (–55°C to +125°C) and wide supply (3–20 V), with propagation delays tightly specified across voltage grades (e.g., tPHL = 45–250 ns) and validated per JEDEC JESD13B for B-series CMOS device behavior and DC parametric consistency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 20 V - supports single-supply operation across 5 V, 10 V, and 15 V logic systems without level translation. |
| Propagation Delay (tPHL/tPLH) | 45 ns (min) / 140 ns (max) at VDD = 15 V - enables reliable timing in medium-speed combinatorial logic paths. |
| Output Drive Current | ±6.8 mA at VDD = 15 V - sufficient to directly drive multiple CMOS inputs or small LED indicators. |
| Noise Margin | 2.5 V min at VDD = 15 V - ensures robust immunity against supply ripple and crosstalk in noisy industrial environments. |
| Input Leakage Current | ±100 nA max at VDD = 18 V, TA = 25°C - preserves signal integrity in high-impedance sensing or battery-backed circuits. |
| Operating Temperature | –55°C to +125°C - qualified for under-hood automotive modules and industrial motor controllers. |
Pinout & Package
Package: Plastic DIP-14 (dual in-line package, 0.3-inch width, through-hole mount).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | Input C, B, F | Three inputs of third OR gate - accept standard CMOS logic levels referenced to VSS. |
| 4, 5, 6 | Input E, D, K | Three inputs of second OR gate - electrically isolated from other gates; no internal coupling. |
| 8, 11, 13 | Input A, I, G | Three inputs of first OR gate - compatible with TTL and CMOS input thresholds across full VDD range. |
| 9, 10, 12 | Output J, L, H | Outputs of gates 2, 3, and 1 respectively - rail-to-rail CMOS outputs capable of driving ≥10 4000-series loads. |
| 7 | VSS | Negative supply terminal - must be connected to system ground; defines all input/output reference. |
| 14 | VDD | Positive supply terminal - supplies power to all three gates; decoupling capacitor recommended near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Triple independent OR function | Three fully isolated 3-input OR gates in one package - eliminates inter-gate timing skew and reduces board space vs. discrete solutions. |
| Wide supply voltage support | Operates from 3 V to 20 V - allows reuse across 5 V microcontroller interfaces, 12 V industrial PLC I/O, and 15 V analog subsystems. |
| JEDEC JESD13B compliance | Fully conforms to B-series CMOS specifications - guarantees interoperability with legacy 4000-series logic families and predictable DC behavior. |
| 100% quiescent current tested | Every unit verified for II ≤ 150 µA at VDD = 20 V - ensures low-power standby operation in battery-critical applications. |
Applications
| Industrial Sequencing Logic | Power-On Reset Coordination |
|---|---|
Use Scenario: Generating enable signals for multiple power rails based on status of upstream regulators and fault flags. IC Role / Device Role / Timing Role: Combinatorial OR gate aggregating three independent "OK" signals to assert a global "POWER_GOOD" line. Use Value: Eliminates need for external diode-OR networks; provides deterministic propagation delay (<140 ns) and rail-compatible output swing. | Use Scenario: Combining reset sources (watchdog timeout, manual reset, brown-out detector) into a unified system reset pulse. IC Role / Device Role / Timing Role: Positive-logic OR function ensuring reset assertion if any input goes high - critical for fail-safe initialization. Use Value: Guaranteed noise margin ≥2.5 V at 15 V supply prevents spurious resets in electrically noisy control cabinets. |
| Legacy System Bus Interface | Motor Control Safety Interlock |
Use Scenario: Adapting TTL-level address decode outputs to CMOS-compatible bus enable lines in retro-computing hardware. IC Role / Device Role / Timing Role: Level-shifting OR gate translating 5 V TTL thresholds to 5 V CMOS VIH/VIL while preserving fanout. Use Value: Input leakage ≤100 nA avoids loading legacy TTL drivers; tPD = 125 ns (typ.) meets 8 MHz bus timing budgets. | Use Scenario: Monitoring emergency stop, thermal cutoff, and overcurrent signals before enabling motor gate drivers. IC Role / Device Role / Timing Role: Fault-aggregation OR gate feeding safety controller - outputs high only when all interlocks are clear. Use Value: –55°C to +125°C rating ensures reliability in motor enclosures; ±6.8 mA drive directly interfaces optocoupler inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple 3-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4075BE | Same pinout and logic function; wider propagation delay spread (tPD = 120–350 ns at 5 V) and lower drive (±3.3 mA at 15 V). | Less suitable for timing-critical paths above 1 MHz; acceptable where cost is primary concern and speed not constrained. | Select CD4075BE only if design tolerates >2× longer max propagation delay and reduced output current headroom. |
| 74HC4075N | Higher speed (tPD = 8 ns typ. at 5 V), but limited to 2–6 V supply; incompatible with 12/15 V systems. | Not usable in multi-voltage industrial designs requiring 10–20 V operation; requires level shifters for mixed-supply integration. | Choose 74HC4075N only for 5 V-only digital systems needing sub-10 ns timing; avoid in wide-VDD applications. |
Compared with CD4075BE and 74HC4075N, the HCF4075BEY uniquely balances wide supply range (3–20 V), industrial temperature tolerance (–55°C to +125°C), and medium-speed performance (60 ns typ.), making it the sole option for legacy-compatible, multi-rail, and harsh-environment OR logic.
Availability
HCF4075BEY is available at Aetrix Electronics and suitable for industrial sequencing logic, power-on reset coordination, legacy system bus interface, and motor control safety interlock applications requiring stable component supply and long-term obsolescence resilience.
Supply support for HCF4075BEY 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, MCU, power, and discrete components for industrial, automotive, and consumer markets.
The HCF4075BEY belongs to ST's legacy CMOS B-series logic family, engineered for backward compatibility with 4000-series devices and long-lifecycle deployment in industrial control and instrumentation systems.
FAQ
Is HCF4075BEY pin-compatible with CD4075BE?
Yes - HCF4075BEY uses identical DIP-14 pinout and logic function as CD4075BE, including matching input/output assignments and VDD/VSS locations. Both comply with JEDEC JESD13B, enabling direct physical replacement in existing PCB layouts without redesign.
What is the maximum capacitive load this device can drive reliably?
HCF4075BEY is characterized with CL = 50 pF in dynamic testing, and its output transition time (tTLH/tTHL) remains within spec up to 100 pF at VDD = 15 V. For loads exceeding 100 pF, series termination or buffer staging is recommended to maintain timing integrity.
Does HCF4075BEY support mixed-voltage interfacing (e.g., 5 V inputs with 15 V supply)?
Yes - input voltage range is 0 to VDD, so 5 V logic signals are fully valid when VDD = 15 V. VIH and VIL thresholds scale with supply (e.g., VIH = 11 V min at VDD = 15 V), ensuring correct recognition of 5 V-high inputs as logic "1" without external resistors.
Can HCF4075BEY operate continuously at 20 V supply?
Yes - absolute maximum VDD is +22 V, and recommended operating VDD extends to 20 V. Quiescent current is fully specified and tested at 20 V (IL ≤ 150 µA), confirming safe continuous operation at this voltage with proper thermal derating per package dissipation limits.
HCF4075BEY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 4000B
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- OR Gate
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- Features:
- -
- Voltage - Supply:
- 3V ~ 20V
- Current - Quiescent (Max):
- 5 µA
- Current - Output High, Low:
- 6.8mA, 6.8mA
- Input Logic Level - Low:
- 1.5V ~ 4V
- Input Logic Level - High:
- 3.5V ~ 11V
- Max Propagation Delay @ V, Max CL:
- 140ns @ 15V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-DIP
HCF4075BEY FAQ
1.How can I place an order for HCF4075BEY through Aetrix?
Please submit a Request for Quotation (RFQ) for HCF4075BEY 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 HCF4075BEY reliable?
The price and inventory of HCF4075BEY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HCF4075BEY is usually 5 days.
3.What payment methods are accepted for HCF4075BEY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HCF4075BEY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HCF4075BEY?
HCF4075BEY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HCF4075BEY 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 HCF4075BEY?
For technical support, including HCF4075BEY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HCF4075BEY requirements.
6.How does Aetrix verify that HCF4075BEY is sourced from the original manufacturer or authorized distributors?
All HCF4075BEY 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 HCF4075BEY meets industry standards.
7.What is the process for return or replacement of HCF4075BEY?
All HCF4075BEY units undergo pre-shipment inspection (PSI). If there is an issue with HCF4075BEY, 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 HCF4075BEY part is unused and in its original packaging.
Return procedure for HCF4075BEY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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