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Details, datasheet, quote on part number:SN55LBC176P
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Datasheet text preview:
SN55LBC176, SN65LBC176, SN65LBC176Q, SN75LBC176 DIFFERENTIAL BUS TRANSCEIVERS
SLLS067F AUGUST 1990 REVISED JANUARY 2000
D D D D D D D D D D D D D D D D D
Bidirectional Transceiver Meet or Exceed the Requirements of ANSI Standard RS-485 and ISO 8482:1987(E) High-Speed Low-Power LinBiCMOSTM Circuitry Designed for High-Speed Operation in Both Serial and Parallel Applications Low Skew Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments Very Low Disabled Supply-Current Requirements . . . 200 µA Maximum Wide Positive and Negative Input/Output Bus Voltage Ranges Driver Output Capacity . . . ± 60 mA 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 Operate From a Single 5-V Supply Glitch-Free Power-Up and Power-Down Protection Available in Q-Temp Automotive HighRel Automotive Applications Configuration Control / Print Support Qualification to Automotive Standards
D, JG, OR P PACKAGE (TOP VIEW)
R RE DE D
1 2 3 4
8 7 6 5
VCC B A GND
FK PACKAGE (TOP VIEW)
NC RE NC DE NC
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
NC R NC VCC NC NC B NC A NC
NC No internal connection
Function Tables
DRIVER INPUT D H L X ENABLE DE H H L OUTPUTS A B H L L H Z Z
description
The SN55LBC176, SN65LBC176, SN65LBC176Q, and SN75LBC176 differential bus transceivers are monolithic, integrated circuits designed for bidirectional data communication on multipoint bus-transmission lines. They are designed for balanced transmission lines and meet ANSI Standard RS-485 and ISO 8482:1987(E).
RECEIVER DIFFERENTIAL INPUTS AB VID 0.2 V 0.2 V < VID < 0.2 V VID 0.2 V X Open H = high level, X = irrelevant, ENABLE RE L L L H L OUTPUT R H ? L Z H
L = low level, ? = indeterminate, Z = high impedance (off)
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.
LinBiCMOS and LinASIC are trademarks of 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.
Copyright © 2000, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
NC D NC GND NC
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SN55LBC176, SN65LBC176, SN65LBC176Q, SN75LBC176 DIFFERENTIAL BUS TRANSCEIVERS
SLLS067F AUGUST 1990 REVISED JANUARY 2000
description (continued)
The SN55LBC176, SN65LBC176, SN65LBC176Q, and SN75LBC176 combine 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. Very low device supply current can be achieved by disabling the driver and the receiver. Both the driver and receiver are available as cells in the Texas Instruments LinASICTM Library. These transceivers are suitable for ANSI Standard RS-485 and ISO 8482:1987 (E) applications to the extent that they are specified in the operating conditions and characteristics section of this data sheet. Certain limits contained in the ANSI Standard RS-485 and ISO 8482:1987 (E) are not met or cannot be tested over the entire military temperature range. The SN55LBC176 is characterized for operation from 55°C to 125°C. The SN65LBC176 is characterized for operation from 40°C to 85°C, and the SN65LBC176Q is characterized for operation from 40°C to 125°C. The SN75LBC176 is characterized for operation from 0°C to 70°C.
logic symbol
DE RE 3 2 EN1 EN2 6 D 4 1 1 7
logic diagram (positive logic)
DE D A B RE R 2 6 1 7 A B Bus 3 4
R
1
2
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN55LBC176, SN65LBC176, SN65LBC176Q, SN75LBC176 DIFFERENTIAL BUS TRANSCEIVERS
SLLS067F AUGUST 1990 REVISED JANUARY 2000
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT VCC VCC VCC TYPICAL OF A AND B I/O PORTS TYPICAL OF RECEIVER OUTPUT
100 k NOM A Port Only A or B Input 18 k NOM
3 k NOM Output
100 k NOM B Port Only
1.1 k NOM
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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