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Product Detailed Parameters
- Description：RAD-HARD HEX SCHMITT INVERTER
- Series：54AC
- Mfr：STMicroelectronics
- Package：Strip
- Logic Type：Inverter
- Number of Circuits：6
- Number of Inputs：6
- Features：Schmitt Trigger
- Voltage - Supply：2V ~ 6V
- Current - Quiescent (Max)：-
- Current - Output High, Low：50mA, 50mA
- Input Logic Level - Low：-
- Input Logic Level - High：-
- Max Propagation Delay @ V, Max CL：-
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Surface Mount
- Supplier Device Package：14-CFlatPack
- Package / Case：14-CFlatPack
- Grade：-
- Qualification：-
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Overview
The STMicroelectronics RHFAC14K1 is a hex Schmitt inverter belonging to the radiation-hardened 54ACxxxx series. It operates within a supply voltage range of 2 V to 6 V and supports an extended temperature range from -55 °C to +125 °C. The device features high radiation hardness, including a total ionizing dose (TID) rating of 300 krad(Si), single-event latch-up immunity up to 110 MeV.cm²/mg, and characterized susceptibility to single-event upsets and transient effects. It is housed in a ceramic Flat-14 package with gold finish.
Feature Summary
- High radiation hardness designed for demanding aerospace environments
- Hex Schmitt trigger configuration for noise-immune signal conditioning
- Ceramic hermetic packaging ensuring environmental stability
Applications
- Aerospace digital logic circuits
- Harsh environment signal processing
- Spacecraft instrumentation interfaces
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, lid grounding status, and quality level. Confirm whether the unit is an engineering model or QML-V qualified before procurement. Ensure compatibility with existing system power supplies and thermal management requirements.
Selection Notes
Select this component when radiation tolerance is critical for mission reliability. The AC series offers broader voltage flexibility compared to ACT variants. Verify that the required radiation specifications align with the device's characterization data. Consider the ceramic package constraints during mechanical design integration.
Part Context
This part belongs to the 54ACxxxx family of advanced high-speed CMOS logic functions. The series is specifically engineered to meet stringent radiation requirements for space applications. All devices in this family utilize ceramic hermetic packages and undergo rigorous qualification processes to ensure performance under extreme conditions.
Replacement Considerations
Direct replacements include other parts within the 54ACxxxx radiation-hardened series. Verify pinout compatibility and radiation specifications when substituting. Consult the manufacturer's cross-reference documentation for equivalent components with matching electrical and environmental ratings.
