Controlled Baseline
− One Assembly/Test Site, One Fabrication
Site
Extended Temperature Performance of
−40°C to 125°C and −55°C to 125°C
Enhanced Diminishing Manufacturing
Sources (DMS) Support
Enhanced Product Change Notification
Qualification Pedigree†
High-Speed Low-Power LinBiCMOS
Circuitry Designed for Signaling Rates‡ Up
to 30 Mbps
Bus-Pin ESD Protection Exceeds 12-kV
HBM
Compatible With ANSI Standard
TIA/EIA-485-A and ISO 8482:1987(E)
Low Skew
Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
Low Disabled Supply Current
Requirements . . . 700 μA Maximum
Common-Mode Voltage Range of −7 V
to 12 V
Thermal-Shutdown Protection
Driver Positive and Negative Current
Limiting
Open-Circuit Fail-Safe Receiver Design
Receiver Input Sensitivity . . . ±200 mV Max
Receiver Input Hysteresis . . . 50 mV Typ
Glitch-Free Power-Up and Power-Down
Protection

description/ordering information
The SN65LBC176A-EP differential bus transceiver is a monolithic, integrated circuits designed for bidirectional
data communication on multipoint bus-transmission lines. The SN65LBC176A-EP is designed for balanced
transmission lines and is compatible with ANSI standard TIA/EIA-485-A and ISO 8482. The SN65LBC176A-EP
offers improved switching performance over its predecessors without sacrificing significantly more power.
The SN65LBC176A-EP combines a 3-state, differential line driver and a differential input line receiver, both of
which operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables,
respectively, which can externally connect together to function as a direction control. The driver differential
outputs and the receiver differential inputs connect internally to form a differential input/output (I/O) bus port that
is designed to offer minimum loading to the bus whenever the driver is disabled or VCC = 0. This port features
wide positive and negative common-mode voltage ranges, making the device suitable for party-line
applications. Low device supply current can be achieved by disabling the driver and the receiver.