SN65C1168EMPWSEP Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN65C1168EMPWSEP is a dual-channel RS-422/EIA-422 differential line transceiver with ±8 kV IEC ESD protection and space-grade reliability. It integrates 2 drivers and 2 differential Schmitt-trigger receivers in a 16-pin SOIC package. Designed for harsh-environment and space-rated communication links operating across the full military temperature range.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN65C1168EMPWSEP 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 SN65C1168EMPWSEP?
- ±8 kV IEC 61000-4-2 ESD protection on all bus pins
- Dual RS-422/EIA-422-B compliant differential drivers with high output drive
- Differential Schmitt-trigger receiver inputs for superior noise immunity
- Space-rated enhanced product (EP) qualification for -55°C to 125°C operation
- 16-pin SOIC package with 2 drivers and 2 receivers in single device
- Supports data rates up to 20 Mbps on balanced twisted-pair cables
What is SN65C1168EMPWSEP used for?
SN65C1168EMPWSEP is designed for satellite payloads, space launch vehicle avionics, and radiation-tolerant subsystems that require robust RS-422 serial communication with IEC ESD protection. It is also used in military ground-support equipment and harsh industrial controllers where long-distance differential links must survive electrostatic discharge events exceeding ±8 kV. The dual-channel configuration allows bidirectional full-duplex communication using a single IC in space-constrained avionics backplanes.
What are the specifications of SN65C1168EMPWSEP?
| Pbfree Code | Yes |
| Date Of Intro | 2019-08-10 |
| YTEOL | 15 |
| Differential Output | YES |
| Driver Number of Bits | 2 |
| High Level Input Current-Max | 0.000001A |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-422-B; TIA-422-B; V.11 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 2 |
| Out Swing-Min | 2V |
| Output Low Current-Max | 0.006A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Receive Delay-Max | 27ns |
| Receiver Number of Bits | 2 |
| Screening Level | SPACE |
| Supply Current-Max | 17mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Total Dose | 30k Rad(Si) V |
| Transmit Delay-Max | 16ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the SN65C1168EMPWSEP datasheet?
SN65C1168EMPWSEP Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN65C1168EMPWSEP?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What ESD protection level does SN65C1168EMPWSEP provide on its bus pins?
SN65C1168EMPWSEP provides ±8 kV ESD protection on all differential bus pins per the IEC 61000-4-2 contact discharge standard, which is significantly higher than the ±2 kV protection typical of standard RS-422 transceivers. This robust protection level reduces the risk of permanent damage during cable hot-plug events or static discharge in field-installed communication systems running over unshielded twisted-pair cabling.
Which interface standard does SN65C1168EMPWSEP comply with, and what data rate is supported?
The device is compliant with EIA-422-B and TIA-422-B differential bus standards, which specify balanced transmission for noise-immune point-to-point serial communication. SN65C1168EMPWSEP supports data rates up to 20 Mbps on short cable runs, meeting the RS-422 rate specification. At longer cable lengths such as 100 metres or more, the usable data rate decreases due to cable capacitance, but the Schmitt-trigger receiver inputs maintain reliable detection with margins of at least 200 mV differential.
Why is the enhanced-product space-rated version important for satellite communication designs?
The enhanced-product (EP) qualification extends the operating and storage temperature range to -55°C to 125°C and applies tighter screening and traceability requirements compared to commercial devices. For satellite communication payloads, this ensures the RS-422 transceiver meets the thermal cycling, outgassing, and reliability standards required for space operation. The dual-driver, dual-receiver architecture in a single 16-pin SOIC also reduces component count on mass-limited spacecraft PCBs where every gram matters.
Can SN65C1168EMPWSEP operate as a full-duplex RS-422 link on a single device?
Yes. The two independent driver-receiver pairs in SN65C1168EMPWSEP allow simultaneous transmission and reception on separate differential pairs, enabling full-duplex point-to-point communication over 4-wire RS-422 cabling. One pair carries the transmitted signal from the local driver to the remote receiver, while the second pair carries the returning signal, all handled by the single 16-pin device. This avoids the half-duplex bus contention of RS-485 and is preferred in space and military applications where link determinism is critical.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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