UM232E

www.DataSheet.co.kr Union Microsystems, Inc. UM202E/232E High ESD-Protected,Fail-Safe, Single Supply RS232 Transceivers General Description The UM202E/232E series are low power single supply RS232 interface. The device consists of two line drivers, two line receivers, and a dual charge pump circuit. The device meets the requirements of TIA/ EIA-232 standard and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The on chip charge pump and four small external capacitors act as onboard DC to DC converter, allow chip operated from single 5V supply, eliminating the need for +/- 10V power supplies, reduce cost and board space. Chip power supply current is specified at 6.0 mA maximum, making the device ideal for battery and power conscious applications. The device operates at data signaling rates over 120 Kb/s. The slew rate of driver is set internally less than 30V/µs and the receivers feature internal noise filtering, eliminating the need for external slew rate and filter capacitors for reliable operation. The driver inputs and receiver outputs are TTL and CMOS compatible. UM202E/232E comes in 16 pin DIP, SOP and SSOP packages, operating over the commercial and industrial temperature ranges. The ESD tolerance has been upgraded on these devices to over +/- 15KV for both Human Body Model and IEC1000-4-2 Air Discharge Method, without latchup. These devices are pin-to-pin compatible with MAX202/232 devices as well as ...