|Information||3.3V, 20Mbps, TSOT23 RS-485/RS-422 Transmitter with ±15kV ESD Protection|
|Supported Protocols||RS-422, RS-485|
|Supply Voltage (Nom) (V)||3.3|
|No. of Tx||1|
|No. of Rx||0|
|HBM ESD (kV)||15|
|IEC 61000-4-2 Contact (±kV)||8|
|Temperature Range (°C)||-40 to 125|
|Data Rate (MAX) (Mbps)||20|
|ICC (Max) (mA)||0.375|
|Typ Shutdown Current (µA)||2|
|PROFIBUS (5V) or High Output (3V)|
The XR33193, XR33194, and XR33195 are a high performance RS-485/RS-422 driver family offered in a tiny TSOT23 package designed to meet the increasing system requirements found in today’s performance serial communication applications. These standalone drivers operate off a single 3.3V supply and meet RS-485 and RS-422 standards for balanced RS-485 and RS-422 serial communications networks.
The driver family offers several speed options to maximize performance in different applications. The XR33193 and XR33194 have slew limited outputs for reduced EMI and for error free communication over long or improper/unterminated data cables or multi-drop applications with unterminated stubs. The XR33195 driver operates at data rates up to 20Mbps with tight skew and prop delay spec’s required by demanding high speed applications. All parts in the XR33193/94/95 driver family operate over the extended temperature range of -40°C to 125°C.
The XR33193/94/95 driver family is protected by short-circuit detection as well as thermal shutdown and will maintain a high impedance state in shutdown or when powered off. The driver family also includes hot swap circuitry to protect against false transitions on the bus during power-up or live insertion.
For companion standalone RS-485/RS-422 receivers in tiny TSOT23 packages see our XR33180/81/83/84 product datasheet.
- +3.3V operation
- 250kbps (XR33193), 2.5Mbps (XR33194) and 20Mbps (XR33195) data rate options (make links to other product pages)
- Enhanced ESD Specifications
- ±15kV Human Body Model (bus pins)
- ±4kV Human Body Model (all other pins)
- Short-circuit protection
- Thermal protection circuitry
- Hot swap glitch protection
- Low current shutdown mode (2µA max)
- 3mm x 3mm TSOT23-6 package
- -40°C to 125°C operating temperature range
- Base stations
- Clock distribution
- HVAC networks
- Building and process automation
- Security equipment
- Telecom equipment
- Local area networks
- Industrial process control
- Point-of-sale equipment
Documentation & Design Tools
|Data Sheets||XR33193/4/53.3V, 20Mbps, TSOT23 RS-485/RS-422 Transmitters with ±15kV ESD Protection||REV1B||March 2018||458.9 KB|
|Application Notes||RS-232 and RS-485 PCB Layout Application Note||R00||December 2022||2.8 MB|
|Application Notes||AN-292, RS-485 Cable Lengths vs Data Signaling Rate||R01||July 2022||2.7 MB|
|Product Brochures||Interface Brochure||October 2022||3.8 MB|
Quality & RoHS
Parts & Purchasing
|Part Number||Pkg Code||Min Temp||Max Temp||Status||Buy Now||Order Samples|
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
FAQs & Support
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Submit a Technical Support Question As a New Question
For RS-232 it is 50 feet (15 meters), or the cable length equal to a capacitance of 2500 pF, at a maximum transmission rate of 19.2kbps. When we reduce the baud rate, it allows for longer cable length. For Example:
Baud Rate (bps)
Maximum RS-232 Cable Length (ft)
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