(China (Mainland))
Product Summary
The 75ALS1177 is a dual differential driver and receiver. The 75ALS1177 is a monolithic integrated circuit designed for bidirectional data communication on multipoint bus transmission lines. The 75ALS1177 is designed for balanced transmission lines and meet standards EIA/TIA-422-B, RS-485, and CCITT Recommendation V.11. The 75ALS1177 combines dual 3-state differential line drivers and dual 3-state differential input line receivers, both of which operate from a single 5-V power supply.
Parametrics
75ALS1177 absolute maximum ratings: (1)Supply voltage, VCC: 7 V; (2)Input voltage, VI (DE, RE, and D inputs):7 V; (3)Output voltage range, VO (Driver):–9 V to 14 V; (4)Input voltage range, Receiver:–14 V to 14 V; (5)Receiver differential-input voltage range:–14 V to 14 V; (6)Receiver low-level output current:50 mA; (7)Operating free-air temperature range, TA:0℃ to 70℃; (8)Storage temperature range, Tstg:–65℃ to 150℃; (9)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds:260℃.
Features
75ALS1177 features: (1)Meet or Exceed Standards EIA/TIA-422-B, RS-485, CCITT Recommendation V.11; (2)Designed for Multipoint Bus Transmission on Long Bus Lines in Noisy Environments; (3)Low Supply Current Requirement 50 mA Max; (4)Driver Positive- and Negative-Current Limiting; (5)Driver Common-Mode Output Voltage Range of –7 V to 12 V; (6)Thermal Shutdown Protection; (7)Driver 3-State Outputs Active-High Enable; (8)Receiver Common-Mode Input Voltage Range of –12 V to 12 V; (9)Receiver Input Sensitivity:±200 mV; (10)Receiver Hysteresis:50 mV Typ; (11)Receiver High Input Impedance 12 kW Min; (12)Receiver 3-State Outputs Active-Low Enable for SN75ALS1177 Only; (13)Operate From Single 5-V Supply.
Diagrams
