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Manufacturer Part #


SP233A Series 120 kbps Enhanced RS-232 Line Driver/Receiver - WSOIC-20

Mfr. Name: MaxLinear
Standard Pkg:
Product Variant Information section
Date Code: 1921
Product Specification Section
Technical Attributes
Attributes Table
Data Rate: 240kbps
ESD Voltage-Max: ±2kV
Operating Temp Range: 0°C to 70°C
Supply Voltage: 4.5V to 5.5V
Duplex: Full Duplex
Function: Transceiver
No. of Drivers: 2
No. of Receivers: 2
Supply Current: 10mA
Power Dissipation: 375mW
No of Terminals: 20
Moisture Sensitivity Level: 3
Package Style:  SOIC-20W
Mounting Method: Surface Mount
Features & Applications
EXAR, the market leader, offers the industry's broadest line-up of UART and serial protocol transceivers solutions.

With over 200 devices, wide 2.25 to 5.5V power supply range, 1 to 128 bytes of FIFO and compliance with the universal 3.3/5V PCI, Intel and Motorola bus interfaces, including single protocol ICs that support RS-232, RS-422 or RS-485 as well as dual and multi-protocol ICs that support from 2 to 8 of the most popular interface standards with a single IC, Exar has already done the difficult work for you.

We can deliver an immediate competitive advantage to your compressed time-to-market demands accelerating initial design, to functioning prototype and finally volume production.

The SP233A / SP310A / SP312A devices are a family of line driver and receiver pairs that meets the specifications of RS-232 and V.28 serial protocols. The devices are pin-to-pin compatible with popular industry standard pinots. The SP233A / SP310A / SP312A offer 120kbps data rate under load, small ceramic type 0.1μF charge pump capacitors and overall ruggedness for commercial applications.

Features include Exar's BiCMOS design allowing for low power operation without sacrificing performance. These devices are available in plastic DIP and SOIC Wide packages operating over the commercial and industrial temperature ranges.


  • Operates from Single +5V Power Supply
  • Meets All RS-232D and ITU V.28 Specifications
  • No external capacitors required
  • High Data Rate – 120Kbps Under Load
  • Low Power CMOS – 3mA Operation
  • No External Capacitors Required (SP233A)
  • Enhanced ESD Protection (2kV Human Body Model)
Pricing Section
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Product Variant Information section