UM208

UM207/208/211/213 Low Power, High ESD +5V RS-232 Transceivers UM207EESO/UM207EEAO/UM207EEAOR/UM207EEUO UM208EESO/UM208EEAO/UM208EEAOR/UM208EEUO UM211EESS/UM211EEAS/UM211EEASR/UM211EEUS UM213EESS/UM213EEAS/UM213EEASR/UM213EEUS General Description The UM207/208/211/213 are enhanced transceivers intended for use in RS-232 and V.28 serial communication and are particularly suited for those applications where ±12V is not available. These devices feature very low power consumption and +5V single supply operation making them ideal for space-constrained applications. With integrated charge pump circuitry and small 0.1µF charge pump capacitors, these devices can fully meet RS-232 voltage levels. A slow rate limited transmitter circuit improves data integrity. The receiver features hysteresis to greatly improve noise rejection. The UM211 and UM213 feature a low power shutdown mode, which reduces power supply drain to 1µA. The UM213 includes two receivers that remain active during shutdown to ...