HCC4538BDG STMicroelectronics Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
HCC4538BDG is a radiation-hardened dual precision monostable multivibrator by STMicroelectronics in a 16-pin ceramic DIP package, operating from 3 V to 18 V supply with complementary outputs. Key specs: dual monostable, 3 V to 18 V supply, radiation-hardened 4000-series CMOS logic. From $15.00, in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- HCC4538BDG 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 HCC4538BDG?
- Radiation-hardened construction (rad-hard) ensures reliable operation in space and high-radiation industrial environments up to specified total dose levels
- Dual precision monostable with complementary Q and Q-bar outputs provides two independent retriggerable pulse generators in a single 16-pin package
- Wide supply voltage range of 3 V to 18 V with 4000-series CMOS compatibility ensures interoperability with existing space-qualified logic families
What is HCC4538BDG used for?
HCC4538BDG is used in space satellite subsystems, nuclear instrumentation, and military avionics where standard commercial ICs are unsuitable due to radiation environments. Its dual monostable architecture generates precise timing pulses for event sequencing, power-on reset circuits, and watchdog timer implementations in rad-hard designs. The 16-pin ceramic DIP package with metal-sealed cofired construction provides hermetic protection against harsh environments and temperature extremes from -55°C to +125°C.
What are the specifications of HCC4538BDG?
| Manufacturer Package Code | DIL16 FP |
| YTEOL | 5 |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-CDIP-T16 |
| Logic IC Type | MONOSTABLE MULTIVIBRATOR |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | CERAMIC, METAL-SEALED COFIRED |
| Package Equivalence Code | DIP16,.3 |
| 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 |
| Temperature Grade | MILITARY |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| 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 HCC4538BDG datasheet?
HCC4538BDG Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for HCC4538BDG?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What makes HCC4538BDG suitable for space satellite applications over a commercial CMOS monostable?
HCC4538BDG uses radiation-hardened CMOS construction, providing tolerance to total ionizing dose (TID) and single-event effects (SEE) that would cause latch-up or parametric failure in commercial parts. The ceramic metal-sealed package also offers hermetic protection against outgassing and moisture in vacuum, conditions that would degrade standard plastic-packaged parts over a multi-year satellite mission.
What is the supply voltage range of HCC4538BDG and how does it interface with 5 V logic systems?
HCC4538BDG operates from 3 V to 18 V supply, making it directly compatible with 5 V, 9 V, and 12 V logic systems. At 5 V, CMOS input thresholds are typically 1/3 VDD (1.67 V) and 2/3 VDD (3.33 V), so standard 5 V CMOS and TTL-compatible signals drive the inputs without level shifting. Complementary Q and Q-bar outputs drive downstream 4000-series or 74HC logic directly.
How does HCC4538BDG generate a precision timing pulse and what sets the pulse width?
HCC4538BDG is a retriggerable monostable multivibrator whose output pulse width is set by an external resistor-capacitor (RC) network connected to the timing pins. Pulse width equals approximately 0.7 × R × C seconds, allowing pulse durations from nanoseconds to seconds depending on component selection. Precise 1% resistors and stable NPO/C0G ceramic capacitors minimize timing drift over the -55°C to +125°C operating temperature range.
For a nuclear instrumentation pulse stretcher needing two independent channels, how does HCC4538BDG simplify the design?
HCC4538BDG integrates 2 independent monostable multivibrators in a single 16-pin ceramic DIP, eliminating the need for two separate ICs. Each channel has its own RC timing network and complementary outputs, allowing separate pulse widths for two different detector signals. The radiation-hardened, hermetically-sealed DIP-16 package meets MIL-SPEC requirements for nuclear and aerospace instrumentation without additional shielding.
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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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