HCC4512BDG STMicroelectronics Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
HCC4512BDG is a STMicroelectronics radiation-hardened 8-channel CMOS data selector/multiplexer with 3-state outputs in a ceramic 16-pin DIP package. It selects one of 8 inputs via a 3-bit address and supports bus sharing through its high-impedance disable state, targeting space-grade and military-grade digital systems. From $25.00 in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- HCC4512BDG 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 HCC4512BDG?
- Radiation-hardened design meets space and mil-grade reliability requirements in ceramic CDIP-16 package
- 8-to-1 channel selection via 3-bit binary address with active-high strobe enable
- 3-state output enables bus sharing with multiple devices without signal contention
- Wide CMOS supply range from 3 V to 18 V for compatibility with mixed-voltage aerospace systems
What is HCC4512BDG used for?
The HCC4512BDG is designed for space-qualified satellite onboard computers and military avionics where radiation-hardened logic is mandatory for reliable data routing under ionizing particle flux. Its 8-channel 3-state multiplexer function is used in redundant telemetry buses and data-acquisition backplanes where multiple sensors must share a single digital line without contention. Ground-based defense electronics and nuclear-hardened control systems also rely on this part for its ceramic hermetic package and guaranteed operation across the full -55°C to 125°C military temperature range.
What are the specifications of HCC4512BDG?
| Manufacturer Package Code | DIL16 FP |
| YTEOL | 5 |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-CDIP-T16 |
| Logic IC Type | MULTIPLEXER |
| Number of Functions | 1 |
| Number of Inputs | 8 |
| Number of Outputs | 1 |
| Output Characteristics | 3-STATE |
| Package Body Material | CERAMIC, METAL-SEALED COFIRED |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Supply Voltage-Max (Vsup) | 15V |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| 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 HCC4512BDG datasheet?
HCC4512BDG Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for HCC4512BDG?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many data inputs can HCC4512BDG select from and what address width controls the selection?
The HCC4512BDG selects from 8 data inputs using a 3-bit binary address (A0, A1, A2), routing one of 8 channels to its single 3-state output. The 3-bit address covers all 8 channel positions, and an active-high strobe input disables the output to a high-impedance state when bus sharing with other devices is needed.
What supply voltage range does HCC4512BDG support, and how does that affect level compatibility in mixed-voltage aerospace designs?
HCC4512BDG operates from 3 V to 18 V supply voltage, covering both 5 V TTL-compatible systems and 12 V or 15 V legacy aerospace analog-digital mixed boards. This wide CMOS supply range means a single part can interface between different voltage domains on a satellite PCB without additional level-translation buffers.
What makes the ceramic CDIP-16 package of HCC4512BDG suitable for long-duration space missions?
The ceramic, metal-sealed co-fired CDIP-16 package of HCC4512BDG provides hermetic sealing that prevents moisture and outgassing-related failures over 10 to 20 year satellite lifetimes. Unlike plastic packages, ceramic hermetic seals maintain their integrity across the -55°C to 125°C temperature excursions experienced during orbital day-night cycles and launch thermal shock.
How does the 3-state output of HCC4512BDG reduce bus loading compared to a standard totem-pole multiplexer?
When the strobe pin of HCC4512BDG is deasserted, its output enters a high-impedance state, drawing only leakage current in the pA range and presenting effectively no capacitive load on the shared bus. A totem-pole output, by contrast, always drives the bus high or low, making it impossible to combine multiple multiplexer outputs on a single wire, which would cause 8 to 24 mA shoot-through currents.
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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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