HCF4077BEY STMicroelectronics Integrated Circuit (Dual-In-Line Packages) In Stock
HCF4077BEY is a quad 2-input XNOR (Exclusive NOR) gate IC from the CMOS 4000 series in a 14-pin DIP package. It delivers four independent XNOR gates operable from 3 V to 18 V, suitable for logic comparison, equality detection, and digital signal processing circuits.
- Manufacturer
- STMicroelectronics
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- HCF4077BEY Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of HCF4077BEY?
- 4 independent 2-input XNOR gates in a single 14-pin DIP package
- Wide supply voltage range from 3 V to 18 V for mixed-voltage system compatibility
- CMOS 4000-series family offering high noise immunity and low quiescent current
- Load capacitance rated at 50 pF, suitable for standard logic-level bus interfaces
- RoHS-compliant Pb-free construction meeting modern environmental regulations
What is HCF4077BEY used for?
HCF4077BEY is commonly used in digital comparison circuits, parity checkers, and error-detection logic where equality of two binary signals must be determined. It also finds use in signal conditioning, waveform generation, and glue logic designs across industrial control, telecommunications, and consumer electronic equipment.
What are the specifications of HCF4077BEY?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e3 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | XNOR GATE |
| Max I(ol) | 0.00035999999999999997A |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Prop. Delay@Nom-Sup | 280ns |
| Propagation Delay (tpd) | 280ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 20V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the HCF4077BEY datasheet?
HCF4077BEY Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for HCF4077BEY?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Over what supply voltage range can HCF4077BEY operate, and how does that help mixed-voltage board designs?
HCF4077BEY operates from 3 V to 18 V, allowing it to interface with both 5 V TTL logic and higher-voltage industrial control signals without external level translation. This wide range reduces the need for additional supply rails on a PCB.
How many XNOR gates does HCF4077BEY provide and what is the pin count of its package?
HCF4077BEY contains 4 independent 2-input XNOR gates housed in a 14-pin DIP package, making it straightforward to perform four simultaneous bit-equality comparisons in a through-hole PCB assembly.
In what logic-comparison applications is HCF4077BEY a practical choice over XNOR implementations using discrete NOR gates?
Parity checkers, address decoders, and CRC error-detection circuits that require comparing 2-bit groups benefit from HCF4077BEY because each of the 4 gates handles one comparison independently, cutting component count compared to building XNOR from 2-input NOR gates with a rated load capacitance of 50 pF.
Is HCF4077BEY compliant with RoHS requirements for lead-free assembly processes?
Yes. HCF4077BEY carries an e3 JEDEC code indicating a Pb-free, RoHS-compliant finish, making it eligible for use on circuit boards manufactured under EU RoHS Directive and similar regulations for consumer and industrial equipment.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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