HCC4532BDG STMicroelectronics Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The HCC4532B is a radiation-hardened 8-input priority encoder from the CMOS 4000-series logic family, housed in a 16-pin ceramic DIP package with metal-sealed cofired construction. It converts up to 8 active-high input lines to a 3-bit binary priority-encoded output and operates across the full military temperature range. Designed for space, avionics, and nuclear applications requiring radiation tolerance.
- Manufacturer
- STMicroelectronics
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- HCC4532BDG 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 HCC4532BDG?
- Radiation-hardened construction suitable for space and nuclear environments
- 8 active-high inputs encoded to 3-bit binary output with priority logic
- 16-pin ceramic DIP package with metal-sealed cofired body for harsh environments
- CMOS 4000-series logic family with wide supply range
- Single-function priority encoder with enable input and group-signal output
What is HCC4532BDG used for?
The HCC4532B is designed for satellite subsystems, avionics computers, and nuclear control electronics where standard plastic-package logic ICs are susceptible to single-event upsets or total ionizing dose degradation. Its 8-input priority encoding function is used to arbitrate interrupt lines in radiation-tolerant microprocessor systems and fault-detection circuits requiring deterministic priority resolution. The ceramic DIP-16 package ensures hermeticity and mechanical robustness for long-life space mission profiles.
What are the specifications of HCC4532BDG?
| Manufacturer Package Code | DIL16 FP |
| YTEOL | 3 |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-CDIP-T16 |
| Logic IC Type | ENCODER |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Package Body Material | CERAMIC, METAL-SEALED COFIRED |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | STRIP PACK |
| Screening Level | EUROPEAN SPACE AGENCY |
| Supply Voltage-Max (Vsup) | 20V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Total Dose | 100k Rad(Si) V |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | France |
Where can I find the HCC4532BDG datasheet?
HCC4532BDG Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for HCC4532BDG?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many inputs does the HCC4532BDG encode, and what binary output width does it produce for priority arbitration?
The HCC4532B accepts 8 active-high input lines and encodes the highest-priority active input into a 3-bit binary output code, ranging from 000 to 111. This makes it directly usable as an interrupt priority encoder for 8-line systems in radiation-tolerant processor designs.
Why is the ceramic DIP-16 package of the HCC4532BDG preferred in space and avionics applications over standard plastic packages?
The ceramic metal-sealed cofired DIP-16 package offers hermetic sealing that excludes moisture and contaminants, critical for long-duration space missions where outgassing from plastic packages can cause device failures. Ceramic packages also withstand temperature cycling from -55 °C to +125 °C far better than JEDEC plastic encapsulants.
What radiation tolerance does the HCC4532BDG offer, and which certification standards apply to its use in military or space programs?
As a radiation-hardened device from STMicroelectronics, the HCC4532B is built to survive total ionizing doses required for satellite and avionics programs, typically on the order of 100 krad(Si) or higher. It belongs to the 4000-series CMOS family qualified for MIL-spec and ESA-approved component lists, enabling direct use in programs that mandate radiation-tolerant logic ICs without derating.
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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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