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SN75ALS1177, SN75ALS1178
SLLS154C – MARCH 1993 – REVISED FEBRUARY 2024
SN75ALS1177, SN75ALS1178 Dual Differential Drivers and Receivers
1 Features
• Meet or exceed standards TIA/EIA-422-B and TIA/EIA-485-A
• Designed for multipoint bus transmission on long bus lines in noisy environments
• Low supply-current requirement 50mA maximum • Driver positive-and negative-current limiting • Driver common-mode output voltage range of
–7V to 12V • Thermal shutdown protection driver 3-state outputs
active-high enable • Receiver common-mode input voltage range of
–12V to 12V • Receiver input sensitivity: ±200mV • Receiver hysteresis: 50mV typical • Receiver high input impedance: 12kΩ minimum • Receiver 3-state outputs active-low enable for
SN75ALS1177 only • Operate from single 5V supply
2 Application
SN75ALS1177 Datasheet
