Features: High-Speed Low-Power LinBiCMOSTMCircuitry Designed for Signaling Rates† Upto 30 Mbps
Bus-Pin ESD Protection Exceeds 12 kVHBM
Compatible With ANSI StandardTIA/EIA-485-A and ISO 8482:1987(E)
Low Skew
Designed for Multipoint Transmission onLong Bus Lines in Noisy Environments
Very Low Disabled Supply-CurrentRequirements . . . 700 µA Maximum
Common Mode Voltage Range of −7 Vto 12 V
Thermal-Shutdown Protection
Driver Positive and Negative CurrentLimiting
Open-Circuit Fail-Safe Receiver Design
Receiver Input Sensitivity . . . ±200 mV Max|
Receiver Input Hysteresis . . . 50 mV Typ
Glitch-Free Power-Up and Power-DownProtection
Available in Q-Temp AutomotiveHigh Reliability Automotive ApplicationsConfiguration Control / Print SupportQualification to Automotive Standards
Pinout
SpecificationsSupply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.3 V to 6 V
Voltage range at any bus terminal (A or B) . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . −10 V to 15 V
Input voltage, VI (D, DE, R, or RE
). . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . −0.3 V to VCC + 0.5 V
Electrostatic discharge: Bus terminals and GND, Class 3, A: (see Note 2) . . . . . . . . . . . . . . . . . .12 kV
Bus terminals and GND, Class 3, B: (see Note 2) . . . . . . . . . . . . . . . . . .400 V
All terminals, Class 3, A: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 kV
All terminals, Class 3, B: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .400 V
Continuous total power dissipation (see Note 3) . . . . . . . .. . . . . . . . . . . .See Dissipation Rating Table
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−65 to 150
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . .260DescriptionThe SN65LBC176A, SN65LBC176AQ, andSN75LBC176A differential bus transceivers aremonolithic, integrated circuits designed forbidirectional data communication on multipointbus-transmission lines. SN65LBC176A, SN65LBC176AQ, andSN75LBC176A are designed forbalanced transmission lines and are compatiblewith ANSI standard TIA/EIA-485-A and ISO 8482.The A version offers improved switching performanceover its predecessors without sacrificingsignificantly more power.
The SN65LBC176A, SN65LBC176AQ, and SN75LBC176A combine a 3-state, differential line driver and adifferential input line receiver, both of which operate from a single 5-V power supply. The driver and receiverhave active-high and active-low enables, respectively, SN65LBC176A, SN65LBC176AQ, andSN75LBC176A can externally connect together to function as adirection control. The driver differential outputs and the receiver differential inputs connect internally to form adifferential input/output (I/O) bus port that is designed to offer minimum loading to the bus whenever the driveris disabled or VCC = 0. This port features wide positive and negative common-mode voltage ranges, making the SN65LBC176A, SN65LBC176AQ, andSN75LBC176A suitable for party-line applications. Very low device supply current can be achieved by disabling thedriver and the receiver.
SN65LBC176A Data Sheet
