UTRS485G-S08-R

UNISONIC TECHNOLOGIES CO., LTD UTRS485 Preliminary CMOS IC FAIL-SAFE, 2.5MBPS, RS-485 / RS-422 TRANSCEIVERS WITH ±15KV ESD-PROTECTED  DESCRIPTION The UTC UTRS485 is a half-duplex transceiver designed for RS-485 data bus network, which contains one transmitter and one receiver. The UTC UTRS485 features a fail-safe receiver, which guarantees the receiver to output high when the receiver inputs are open, short or idle. The UTC UTRS485 also features a hot-swap glitch free protection circuits which guarantee outputs of both the transmitter and the receiver in a high impedance state during the power up period. So that the large short current from power to ground will be disable by glitch free function, which will save the power and enhance the efficiency of the power up. The UTC UTRS485 is optimized for signal rates up to 2.5Mbps with differential voltage of 2.3V. The UTC UTRS485 also has the thermal shutdown function when the temperature is over 150℃ and the protection of the current limitation in the transmitter to protect the itself from the damage by the system-fault conditions during normal operation.  SOP-8 FEATURES * Meet the requirements of the EIA/TIA-485 standards. * 5.0V single power supply. * True fail-safe receiver while maintaining EIA/TIA-485 compatibility. * Hot-Swap glitch free protection on control inputs. * Up to 256 transceivers on the bus. * Driver short circuit current limit. * Thermal shutdown for overload protection.  ORDERING INFORMATION Ordering Number UTRS485G-S08-R Package SOP-8 Packing Tape Reel UTRS485G-S08-R (1)Packing Type (1) R: Tape Reel (2)Package Type (2) S08: SOP-8 (3)Green Package (3) G: Halogen Free and Lead Free www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 8 QW-R113-011.c UTRS485 Preliminary  MARKING  PIN CONFIGURATION RO 1 8 VCC RE 2 7 B DE 3 6 A DI 4  CMOS IC 5 GND PIN DESCRIPTION PIN NO. 1 PIN NAME RO 2 RE 3 DE 4 DI 5 6 7 8 GND A B VCC DESCRIPTION Receiver output: if A>B by 200mV, RO will be high; if A