HCC4556BDG STMicroelectronics Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The HCC4556BDG is a radiation-hardened dual 1-of-4 decoder/demultiplexer with active-low outputs in a ceramic DIP-16 package from STMicroelectronics. It provides 2 independent 2-to-4 line decoding functions for space, military, and high-reliability digital systems.
- Manufacturer
- STMicroelectronics
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- HCC4556BDG 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 HCC4556BDG?
- Radiation-hardened dual 2-to-4 line decoder for space and hi-rel applications
- 2 independent decoder sections with active-low (inverted) outputs
- Standard CMOS 4000-series input conditioning for broad logic compatibility
- Ceramic metal-sealed DIP-16 package with hermetic protection
- 16-pin through-hole configuration for reliable board assembly in extreme environments
- YTEOL near end-of-life status requiring proactive procurement planning
What is HCC4556BDG used for?
The HCC4556BDG is designed for space satellite systems, military avionics, and defense electronics requiring radiation-hardened CMOS decoding logic in hermetically sealed packages. Its dual 1-of-4 structure is used for chip-select generation, data bus demultiplexing, and address decoding in rad-hard digital subsystems. High-reliability industrial control systems that demand long operational lifetimes in harsh thermal and radiation environments also utilize this device.
What are the specifications of HCC4556BDG?
| Manufacturer Package Code | DIL16 FP |
| YTEOL | 0 |
| Family | 4000/14000/40000 |
| Input Conditioning | STANDARD |
| JESD-30 Code | R-CDIP-T16 |
| Logic IC Type | 2-LINE TO 4-LINE DECODER |
| Number of Functions | 2 |
| Output Polarity | INVERTED |
| Package Body Material | CERAMIC, METAL-SEALED COFIRED |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| 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 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 HCC4556BDG datasheet?
HCC4556BDG Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for HCC4556BDG?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How is the 2-to-4 decoder function used in HCC4556BDG designs?
Each 2-to-4 decoder section converts 2 address inputs into 4 active-low outputs, useful for chip-select routing in high-reliability logic boards.
Which package checks matter for the 16-pin HCC4556BDG ceramic DIP?
Verify the 16-pin ceramic DIP footprint, insertion clearance, and socket compatibility before replacing commercial logic in aerospace or military assemblies.
When should buyers consider the dual 1-of-4 HCC4556BDG decoder?
Consider it when a design needs 2 independent decoder channels, active-low outputs, and a hermetic package for harsh-environment digital control systems.
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Why Buy from FindMyChip
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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