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5V, Half Duplex, 30Mbps, RS-485/RS-422 Transceiver

Package Information

CAD Model:View CAD Model
Pkg. Type:SOICN
Pkg. Code:MSA
Lead Count (#):8
Pkg. Dimensions (mm):4.9 x 3.9 x 0.00
Pitch (mm):1.3

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)1
Pb (Lead) FreeNo
ECCN (US)
HTS (US)

Product Attributes

Lead Count (#)8
Carrier TypeReel
Moisture Sensitivity Level (MSL)1
Pb (Lead) FreeNo
Pb Free CategorySolder Plate
Temp. Range (°C)-40 to +85°C
Advanced FeaturesHigh Speed
Data Rate (Mbps)30
Devices Allowed on Bus32
Half/Full DuplexHalf
High ESD ProtectionNo
Hot PlugNo
IS Enabled/Disabled1000/800 µA
Length (mm)4.9
MOQ2500
Pitch (mm)1.3
Pkg. Dimensions (mm)4.9 x 3.9 x 0.00
Pkg. TypeSOICN
Primary FeatureESD Protected RS-485/422
Qualification LevelStandard
Receivers (#)1
SHDN ICCN/A µA
Secondary FeatureHigh Speed
Slew Rate LimitedNo
Supply Voltage Vcc (Min) (V)4.5
Transmitters (#)1
Tx/Rx EnableYes
VL PinNo
Vcc (V)4.5-5.5
Width (mm)3.9

Description

Support is limited to customers who have already adopted these products.

The Intersil ISL81485 is a BiCMOS, 5V powered, single transceiver that meets both the RS-485 and RS-422 standards for balanced communication, and features a larger output voltage and higher data rate to benefit high speed applications. Unlike competitive devices, this Intersil transceiver is specified for 10% tolerance supplies (4. 5V to 5. 5V), and it delivers a much larger worst case differential output voltage (2. 0V compared to the typical 1. 5V) over the full supply range. The increased output voltage translates into longer reach, or better data integrity, at the 30Mbps data rate. This device presents a 1 unit load to the RS-485 bus, which allows up to 32 transceivers on the network. Receiver (Rx) inputs feature a fail-safe if open design, which ensures a logic high Rx output if Rx inputs are floating. Driver (Tx) outputs are short circuit protected, even for voltages exceeding the power supply voltage. Additionally, on-chip thermal shutdown circuitry disables the Tx outputs to prevent damage if power dissipation becomes excessive.