STMicroelectronics Transceivers IC ST3243EBTR 3/5 Transceiver Full RS232 28-TSSOP

PRODUCT DESCRIPTION

The ST3243E device consists of 3 drivers, 5 receivers and a dual charge-pump circuit. The device 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 input are protected to ± 8 kV USING IEC 1000-4-2 contact discharge and ± 15 kV using the human body model. The receiver R2 is always active to implement a wake-up feature for serial port.

The ST3243E has a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0 V to 5.5 V supply with a dual charge pump. The device is guaranteed to run at data rates of 250 kbps while maintaining RS-232 output levels.

The auto power-down feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF is set low, both drivers and receivers (expert R2B) are shut off, and supply current is reduced to 1 µA.

Disconnecting the serial port or turning off the peripheral drives causes the auto power-down condition to occur. Auto power-down can be disabled when FORCEON and FORCEOFF are high, and should be done when driving a serial mouse. With auto power-down enabled, the device is activated automatically when a valid signal is applied to any receiver input. Typical application are in notebook, subnotebook, palmtop computers, battery-powered equipment, handheld equipment, peripherals and printers.

PRODUCT PROPERTIES

STJK(HK) ELECTRONICS CO.,LIMITED is an professional Electronic Components distributor,more than 12 years wholesale and distributor enable us accumulated much experience in electronic components field;We sufficient stock of hard to find and obsolete electronic components, semiconductors, military components, switches, relays,sensors,circuit protection and hard drives. The first-level agent of many electronic components brand and original factories, complete categories, stable supply,Lowest price,all chips can be traced back to the origin.

STJK(HK) has always been customer-driven and quality focused. Continuous improvement and ongoing statistical analysis of processes have always been integral to our approach to business. Our Goal: quality first, reputation first, service first, customers first. Be your reliable supplier in China is our pursue.

As an Independent Distributor,STJK(HK) ELECTRONICS CO.,LIMITED is not affiliated with the manufacturers of the products it sells except as expressly noted otherwise.Any and all trademark rights associated with the manufacturers' names and products are owned by the respective manufacturers.