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SN75LBC180A Datasheet(PDF) 1 Page - Texas Instruments |
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SN75LBC180A Datasheet(HTML) 1 Page - Texas Instruments |
1 / 19 page SN65LBC180A, SN75LBC180A LOW POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS SLLS378C − MAY 2000 − REVISED JUNE 2002 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D High-Speed Low-Power LinBICMOS Circuitry Designed for Signaling Rates† of up to 30 Mbps D Bus-Pin ESD Protection Exceeds 12 kV HBM D Very Low Disabled Supply-Current Requirements . . . 700 µA Maximum D Designed for High-Speed Multipoint Data Transmission Over Long Cables D Common-Mode Voltage Range of −7 V to 12 V D Low Supply Current . . . 15 mA Max D Compatible With ANSI Standard TIA/EIA-485-A and ISO 8482:1987(E) D Positive and Negative Output Current Limiting D Driver Thermal Shutdown Protection description The SN65LBC180A and SN75LBC180A differential driver and receiver pairs are monolithic integrated circuits designed for bidirectional data communication over long cables that take on the characteristics of transmission lines. They are balanced, or differential, voltage mode devices that are compatible with ANSI standard TIA/EIA-485-A and ISO 8482:1987(E). The A version offers improved switching performance over its predecessors without sacrificing significantly more power. These devices combine a differential line driver and differential input line receiver and operate from a single 5-V power supply. The driver differential outputs and the receiver differential inputs are connected to separate terminals for full-duplex operation and are designed to present minimum loading to the bus when powered off (VCC = 0). These parts feature wide positive and negative common-mode voltage ranges, making them suitable for point-to-point or multipoint data bus applications. The devices also provide positive and negative current limiting for protection from line fault conditions. The SN65LBC180A is characterized for operation from − 40 °C to 85 °C, and the SN75LBC180A is characterized for operation from 0°C to 70°C. † Signaling rate by TIA/EIA-485-A definition restrict transition times to 30% of the bit duration, and much higher signaling rates may be achieved without this requirement as displayed in the TYPICAL CHARACTERISTICS of this device. Copyright 2002, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. NC − No internal connection INPUT D H L X Open ENABLE DE H H L H OUTPUTS Y Z H L L H Z Z H L DRIVER DIFFERENTIAL INPUTS A− B VID ≥ 0.2 V − 0.2 V < VID < 0.2 V VID ≤ − 0.2 V X Open circuit ENABLE RE L L L H L OUTPUT R H ? L Z H RECEIVER H = high level, L = low level, ? = indeterminate, X = irrelevant, Z = high impedance (off) Function Tables 1 2 3 4 5 6 7 14 13 12 11 10 9 8 NC R RE DE D GND GND VCC VCC A B Z Y NC SN65LBC180AD (Marked as BL180A) SN65LBC180AN (Marked as 65LBC180A) SN75LBC180AD (Marked as LB180A) SN75LBC180AN (Marked as 75LBC180A) (TOP VIEW) LinBiCMOS is a trademark of Texas Instruments. |
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