SP3223EEA-L
Overview
The SP3223EEA-L is a 2-driver/2-receiver RS-232 transceiver designed for portable or battery-powered systems operating from a 3.0V to 5.5V supply. It features AUTO ON-LINE circuitry, which automatically enters a 1 microampere low-power shutdown mode when the RS-232 cable is disconnected or the connected transmitters are inactive. This device is enhanced with robust ESD protection up to +/-15kV (HBM) to ensure reliability in harsh signaling environments.
Why Choose This Part
The primary advantage is the intelligent power management that reduces standby current to 1uA without software intervention. It supports high data rates up to 235Kbps while maintaining compliance with RS-232 standards across a wide 3.0V to 5.5V input range. Additionally, its integrated regulated charge pump allows for operation with only four external 0.1uF capacitors.
Applications
Key Specifications
Getting Started
To implement this device, place four 0.1uF charge pump capacitors near the V+, V-, C1, and C2 pins as specified in the datasheet. Ensure the EN and SHDN pins are tied to the appropriate logic levels or controlled by a microcontroller if manual override of the AUTO ON-LINE feature is required. For prototyping, this 20-SSOP package can be used with standard SSOP-to-DIP adapter boards.
