1 Features
1• VID V62/18617
• Radiation Hardened
– Single Event Latch-up (SEL) Immune to 43
MeV-cm2/mg at 125°C
– ELDRS Free to 30 krad(Si)
– Total Ionizing Dose (TID) RLAT for Every
Wafer Lot up to 20 krad(Si)
• Space Enhanced Plastic
– Controlled Baseline
– Gold Wire
– NiPdAu Lead Finish
– One Assembly and Test Site
– One Fabrication Site
– Available in Military (–55°C to 125°C)
Temperature Range
– Extended Product Life Cycle
– Extended Product-Change Notification
– Product Traceability
– Enhanced Mold Compound for Low
Outgassing
• Compatible With ISO 11898-2
• Bus Pins Fault Protection Exceeds ±16 V
• Bus Pins ESD Protection Exceeds ±14-kV HBM
• Data Rates up to 1 Mbps
• Extended –7-V to 12-V Common Mode Range
• High-Input Impedance Allows for 120 Nodes
• LVTTL I/Os are 5-V Tolerant
• Adjustable Driver Transition Times for Improved
Signal Quality
• Unpowered Node Does Not Disturb the Bus
• Low-Current Standby Mode, 200-μA Typical
• Loopback for Diagnostic Functions
• Thermal Shutdown Protection
• Power Up and Power Down With Glitch-Free Bus
Inputs and Outputs
– High-Input Impedance With Low VCC
– Monolithic Output During Power Cycling

2 Applications
• Supports Low Earth Orbit Space Applications
• Space Data Bus Communication and Control
• Satellite Telemetry and Telecommand for Onboard
Data Handling
• CAN Bus Standards Such as CANopen,
DeviceNet, CAN Kingdom, ISO 11783, NMEA
2000, SAE J1939

3 Description
The SN55HVD233-SEP is used in applications
employing the controller area network (CAN) serial
communication physical layer in accordance with the
ISO 11898 standard. As a CAN transceiver, the
device provides transmit and receive capability
between the differential CAN bus and a CAN
controller, with signaling rates up to 1 Mbps.
Designed for operation in especially harsh radiation
environments, the SN55HVD233-SEP features crosswire,
overvoltage, loss of ground protection to ±16 V,
and overtemperature (thermal shutdown) protection.
This device operates over a wide –7-V to 12-V
common mode range. This transceiver is the interface
between the host CAN controller on the
microprocessor, FPGA, or ASIC, and the differential
CAN bus used in satellite applications.