Features
- Electrically Screened to SMD # 5962-95631
- QML qualified per MIL-PRF-38535 requirements
- 1.2 Micron radiation hardened CMOS
- Total dose: Up to 300kRAD(Si)
- Latch-up free
- EIA RS-422 compatible outputs
- Operation with TTL based on VIH = VDD/2
- Input fail safe circuitry
- High impedance inputs when disabled or powered down
- Low power dissipation standby (Max): 138mW
- Single 5V supply
- Full Military temperature range: -55°C to +125°C
Description
The Intersil HS-26CT32RH, HS-26CT32EH are differential line receivers designed for digital data transmission over balanced lines and meets the requirements of EIA standard RS-422. Radiation hardened CMOS processing assures low power consumption, High-Speed, and reliable operation in the most severe radiation environments. The HS-26CT32RH, HS-26CT32EH have an input sensitivity typically of 200mV over the common mode input voltage range of ±7V. The receivers are also equipped with input fail safe circuitry, which causes the outputs to go to a logic “1” when the inputs are open. Enable and Disable functions are common to all four receivers. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed in the “Ordering Information” must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-95631.
Parameters
| Attributes | Value |
|---|---|
| Rating | Space |
| Input High Voltage Range | VDD to VDD/2 |
| Input Low Voltage Range | 0 to 0.8 |
| Output High Voltage (V) | VDD/2 |
| Output Low Voltage (V) | 0.8 |
| Supply Voltage (min) (V) | 4.5 - 4.5 |
| Supply Voltage (max) (V) | 5.5 - 5.5 |
| Temp. Range (°C) | -55 to +125°C |
| TID HDR (krad(Si)) | 100, 300 |
| DSEE (MeV·cm2/mg) | 100 |
| Flow | RH Hermetic |
| Qualification Level | Class Q, Class T, Class V, EM |
| Die Sale Availability? | Yes |
| PROTO Availability? | Yes |
Applications
- Line Receiver for MIL-STD-1553 Serial Data Bus
- Line Receiver for RS422
| Part Number | Status | Samples | Stock | Package | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pkg. Dimensions (mm) | Pitch (mm) | DLA SMD | Pb (Lead) Free | Pb Free Category | MOQ | Temp. Range (°C) | CAGE code |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HS1-26CT32RH-8 | Active | N/A | Out of Stock | SBDIP | 16# | Tube | Not Applicable | 20.3 x 7.5 x 2.41 | 2.5mm | 5962F9563101QEC | Exempt | Gold Plate over compliant Undercoat-e4 | 25 | -55 to +125°C | 34371 |
| HS1-26CT32RH-Q | Active | N/A | Out of Stock | SBDIP | 16# | Tube | Not Applicable | 20.3 x 7.5 x 2.41 | 2.5mm | 5962F9563101VEC | Exempt | Gold Plate over compliant Undercoat-e4 | 25 | -55 to +125°C | 34371 |
| HS1-26CT32RH-T | Active | N/A | Out of Stock | SBDIP | 16# | 7 x 20 x 5.08 | 2.54mm | 5962R9563101TEC | Yes | 450 | -55 to +125°C | 34371 | |||
| HS1-26CT32RH/PROTO | Active | Available | Out of Stock | SBDIP | 16# | Tube | Not Applicable | 20.3 x 7.5 x 2.41 | 2.5mm | Exempt | Gold Plate over compliant Undercoat-e4 | 1 | -55 to +125°C | 34371 | |
| HS9-26CT32RH-8 | Active | N/A | In Stock | CFP | 16# | Tray | Not Applicable | 10.4 x 6.9 x 0.00 | 1.3mm | 5962F9563101QXC | Exempt | Gold Plate over compliant Undercoat-e4 | 25 | -55 to +125°C | 34371 |
| HS9-26CT32RH-Q | Active | N/A | In Stock | CFP | 16# | Tray | Not Applicable | 10.4 x 6.9 x 0.00 | 1.3mm | 5962F9563101VXC | Exempt | Gold Plate over compliant Undercoat-e4 | 25 | -55 to +125°C | 34371 |
| HS9-26CT32RH-T | Active | N/A | Out of Stock | CFP | 16# | 7 x 10 x 2.92 | 1.27mm | 5962R9563101TXC | Yes | 450 | -55 to +125°C | 34371 | |||
| HS9-26CT32RH/PROTO | Active | Available | In Stock | CFP | 16# | Tray | Not Applicable | 10.4 x 6.9 x 0.00 | 1.3mm | Exempt | Gold Plate over compliant Undercoat-e4 | 1 | -55 to +125°C | 34371 | |
| HS9G-26CT32RH-Q | Active | N/A | Out of Stock | CFP | 16# | Tray | Not Applicable | 10.4 x 6.9 x 0.00 | 1.3mm | 5962F9563101VYC | Exempt | Gold Plate over compliant Undercoat-e4 | 25 | -55 to +125°C | 34371 |
| HS9G-26CT32RH/PROTO | Active | Available | Out of Stock | CFP | 16# | Tray | Not Applicable | 10.4 x 6.9 x 0.00 | 1.3mm | Exempt | Gold Plate over compliant Undercoat-e4 | 1 | -55 to +125°C | 34371 |
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- Application NotePDF 972 KB an9520 Sep 03, 2025
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- Application NotePDF 366 KB R15AN0011EU0100 Rev.1.00 May 17, 2022AI-generated Summary: This document provides detailed guidance on RS-485 transceiver design and application. It covers key topics such as design checklists, interfacing 5V transceivers with 3V controllers, mixing 3.3V and 5V transceivers on the same bus, and using high-speed transceivers at lower data rates. It explains maximum stub lengths, wiring differential inputs to accept single-ended signals, and proper bus termination. The document also discusses transient protection methods and highlights the benefits of specific transceiver models. Practical formulas and diagrams support implementation and troubleshooting in RS-485 networks.
- ReportPDF 438 KB R15AN0009EU0100 Rev.1.00 Mar 04, 2022
- Price Increase NoticePDF 360 KB PIN19011 Apr 10, 2019
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- Application NotePDF 972 KB an9520 Sep 03, 2025
- Application NotePDF 317 KB R34AN0012EU0100 Rev.1.00 Jun 02, 2025
- Application NotePDF 366 KB R15AN0011EU0100 Rev.1.00 May 17, 2022AI-generated Summary: This document provides detailed guidance on RS-485 transceiver design and application. It covers key topics such as design checklists, interfacing 5V transceivers with 3V controllers, mixing 3.3V and 5V transceivers on the same bus, and using high-speed transceivers at lower data rates. It explains maximum stub lengths, wiring differential inputs to accept single-ended signals, and proper bus termination. The document also discusses transient protection methods and highlights the benefits of specific transceiver models. Practical formulas and diagrams support implementation and troubleshooting in RS-485 networks.
- Application NotePDF 338 KB an9867 Nov 10, 1999AI-generated Summary: Electrical parameters are monitored during life testing to detect drift and failures, defined by exceeding datasheet limits. New products require less than 1% failure during burn-in, with failure analysis and corrective actions if exceeded. Sampling plans ensure defect rates below 3%. Life tests last 1000-3000 hours at 125°C depending on process maturity. Failure mechanisms include electromigration, ionic contamination, hot carrier injection, and dielectric rupture. Product sign-off requires all parties' approval after reliability confirmation. Space products undergo burn-in and quality conformance inspections with strict failure limits. Derating is unnecessary as datasheet limits are set at 6-sigma from characterization data, ensuring reliability.
- Application NotePDF 224 KB an9654 May 05, 1999AI-generated Summary: The document explains the reliability and failure mechanisms of semiconductor parts, focusing on life testing and wearout. It discusses how switching states cause transient current pulses and hot carrier injection, which only occur briefly during switching. Life testing at elevated temperatures accelerates aging to remove infant mortality failures, improving reliability. The failure rate follows a bathtub curve with infant mortality, useful life, and wearout phases, modeled by lognormal and exponential distributions. The Arrhenius equation relates failure rates at different temperatures. Burn-in and life tests reduce early failures without harming intrinsic reliability.
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- Price Increase NoticePDF 360 KB PIN19011 Apr 10, 2019
- Product AdvisoryPDF 499 KB PA11003 Jan 05, 2011
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- Product Change NoticePDF 36 KB PCN08050B Oct 22, 2010
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Knowledge Base
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Will HS-26C31xH communicate with HS-26C32xH with different ground potentials?
... for our RS-422 rad hard parts. AN9519: Using the HS-26C31RH, HS-26CT31RH Radiation Hardened RS-422 Line Driver AN9520: Using the HS-26C32RH, HS-26CT32RH Radiation Hardened RS-422 Line Receiver This excerpt was taken from Application Note AN9519, System Noise section: "In addition, the HS-26C32RH can ...
-
Hi-Rel Receiver Unused I/O
If some of the receivers are not used, the inputs and the outputs of the unused receiver can be left open. Here is the circuitry that is in front of the internal comparator of the receiver for the IN+ and IN- signal inputs. Notice the IN+ has a resistor tied ...
Apr 4, 2022 -
Hi-Rel RS-422 Receivers ESD Rating
The parts were ESD HBM tested per MIL-STD-883 TM3015.7. These RS-422 devices were developed over 30 years ago. From the archived files for HBM testing, these receivers had a pass threshold of 800V on the differential pins and 2kV on the other pins. ESD level was ...
Mar 28, 2025
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