Dual RS485 Interface Transceiver
Standard Products
Datasheet
DRS4485 Dual RS485 Interface Transceiver
Radiation Tolerant
www.aeroflex.com/RadHard
De...
Description
Standard Products
Datasheet
DRS4485 Dual RS485 Interface Transceiver
Radiation Tolerant
www.aeroflex.com/RadHard
December 5, 2014
FEATURES
Radiation Performance - Total dose > 100 krad (Si)
Designed for RS485 and RS422 Interface Applications Single +5V supply +5V to -7V Bus common mode range source output Driver maintains high impedance in three-state or with the power off Combined Impedance of a driver output and receiver allows up to 32 transceivers on the bus 200 mV typical input hysteresis Serial data rate 500KHz maximum Voltage source output Receiver output Hi for VIN Diff = 0V < 5ns skew between BUS and BUSN complementary outputs Monolithic construction Designed for commercial, industrial and aerospace applications Plainview is a Class H & K MIL-PRF-38534 manufacturer Packaging – Hermetic Flat Package
- 18-lead, 0.63"sq x 0.125"Ht - Weight - 3.50 grams max
Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.
GENERAL DESCRIPTION
The Aeroflex-Plainview DRS4485 is a monolithic dual bus/line transceiver designed for multi-point data transmission standard RS485 applications. The DRS4485 meets TIA/EIA -485 requirements. The receiver has a fail-safe feature which guarantees a high output state when the BUS is open or shorted.
VCC
DI DR
BUS BUSN
DE
Rx OUT
Rx
Channel 1 or 2
SCD4485 Rev G
GND
Rx EN
FIGURE 1 – SCHEMATIC
ABSOLUTE MAXIMUM RATINGS
Parameter
Range
Operating Case Temp...
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