text.skipToContent text.skipToNavigation

- Region & Currency
- Americas
  - Other Currencies
  - CAD ($)
  - USD ($)
- Asia Pacific
  - Other Currencies
  - AUD ($)
  - JPY (¥)
  - KRW (₩)
  - MYR (RM)
  - NZD ($)
  - SGD ($)
  - USD ($)
- Europe, Middle East, Africa
  - Other Currencies
  - CHF (CHF)
  - CZK (Kč)
  - DKK (kr)
  - USD ($)
You are changing the region you shop from. This may affect price, shipping options and product availability. Items in your current Cart will not be transferred.

You are changing currency. This may affect price, shipping options and product availability. Items in your current Cart will not be transferred.
1 (800) 675-1619

Orders shipping outside of United States will be on hold while the company evaluates tariff impacts.
Please contact your salesperson for assistance.

Manufacturer Part #

SP331ET-L/TR

SP331 Series 10 Mbps 5 V Programmable RS-232/RS-485 Transceiver - SOIC-28

SP331ET-L/TR Datasheet
ECAD Model: Convert this file for your ECAD tool by downloading the free Library Loader. Learn more about ECAD model.
Mfr. Name:	MaxLinear
Standard Pkg:	Product Variant Information section Available Packaging Package Qty: 1500 per Reel
Date Code:

Features & Applications

The SP331 is a programmable RS-232 and/or RS-485 transceiver IC. The SP331 contains four drivers and four receivers when selected in RS-232 mode; and two drivers and two receivers when selected in RS-485 mode. The SP331 also contains a dual mode which has two RS-232 drivers/receivers plus one differential RS-485 driver/receiver.

The RS-232 transceivers can typically operate at 230kbps while adhering to the RS-232 specifications. The RS-485 transceivers can operate up to 10Mbps while adhering to the RS-485 specifications. The SP331 includes a self-test loopback mode where the driver outputs are internally configured to the receiver inputs. This allows for easy diagnostic serial port testing without using an external loopback plug. The RS-232 and RS-485 drivers can be disabled (High-Z output) by controlling a set of four select pins.

Features

+5V Only Operation
Software Programmable RS-232 or RS-485 Selection
Four RS-232 Transceivers iRS-232 Mode
Two RS-485 Full-Duplex Transceivers in RS-485 Mode
Two RS-232 Transceivers and One RS-485 Transceiver in Dual Mode
Self-Testing Loopback Mode
Full Driver Tri-State (Hi-Z) Control
Ideal for RS-232 to RS-485 conversion