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)
|Part number||Order||Supply voltage(s) (Nom) (V)||Number of TX||Number of RX||Duplex||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)||Isolated||Rating||Operating temperature range (C)||Package Group||Approx. price (US$)|
||20||None||2||-10 to 15||32||-7 to 12||55||No||Catalog||0 to 70||
PDIP | 16
SOIC | 20
|1.71 | 1ku|
||10||None||2||-10 to 15||32||-7 to 12||24||No||Catalog||0 to 70||
PDIP | 16
SO | 16
|1.88 | 1ku|