STMicroelectronics 400KBPS Manuals

The document describes the features and characteristics of the ST3243 device, including a supply current of 1µA, a minimum guaranteed data rate of 250kbps, a guaranteed slew rate range of 6V/µs, and suitability for mouse driveability.

The ST3243E is a high performance, low power RS-232 serial cable driver/receiver with ESD protection, low voltage operation and high speed.

ST3243E is a high-performance, low-power RS-232 transceiver supporting 250kbps data rate. It offers true RS-232 performance with guaranteed ESD protection, low dropout voltage, and auto-powerdown feature.

ST3241E is a serial interface chip produced by ST company. It has 3 drivers, 5 receivers and a dual charge-pump circuit. It meets the requirements of EIA/TIA and V.28/V.24 communication standards, providing high data rate capability and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±8KV USING IEC 1000-4-2 contact discharge and ±15KV using the Human Body Model. Receiver R2 is always active to implement a wake-up feature for serial port. The ST3241E has a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The device is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels. It is a complete serial port (3 drivers, 5 receivers) intended for notebook or subnotebook computers. Receivers R1 and R2 have extra outputs in addition to their standard outputs. These extra outputa are always active. Typical application are in notebook, subnotebook, palmtop computers, battery-powered equipment, hand-held equipment, peripherals and printers.

The ST3232 is a 3V powered EIA/TIA-232 and V.28/V.24 communication interface with low power requirements, high data-rate capabilities. ST3232 has a proprietary low dropout transmitter output stage providing true RS-232 performance from 3 to 5.5V supplies. The device requires only four small 0.1µF standard external capacitors for operations from 3V supply. The ST3232 has two receivers and two drivers. The device is guaranteed to run at data rates of 250Kbps while maintaining RS-232 output levels. Typical applications are Notebook, Subnotebook and Palmtop Computers, Battery Powered Equipment, Hand-Held Equipment, Peripherals and Printers.