The SN75ALS172A comprises four line drivers with 3-state differential outputs. They are designed to meet the requirements of ANSI Standards EIA/TIA-422-B and RS-485 and ITU Recommendation V.11. This device is optimized for balanced multipoint bus transmission at rates of up to 20 Mbaud. Each driver features wide positive and negative common-mode output voltage ranges, making it suitable for party-line applications in noisy environments.
The SN75ALS172A provides positive- and negative-current limiting and thermal shutdown for protection from line-fault conditions on the transmission bus line. Shutdown occurs at a junction temperature of approximately 150°C.
The SN75ALS172A is characterized for operation from 0°C to 70°C.
H = high level, L = low level, X = irrelevant, Z = high impedance (off)
|Supply Voltage(s) (Nom) (V)|
|Number of TX|
|Number of RX|
|Signaling Rate (Max) (Mbps)|
|IEC 61000-4-2 contact (+/- kV)|
|HBM ESD (kV)|
|Fault protection (V)|
|Number of nodes|
|Common mode range|
|ICC (Max) (mA)|
|Operating temperature range (C)|
|Approx. price (US$)|