SN75LBC771 - GeoPort(TM) 收发器

SN75LBC771是TI德州仪器公司的一款其它线电路产品，SN75LBC771是GeoPort(TM) 收发器，本站介绍了SN75LBC771的封装应用图解、特点和优点、功能等，并给出了与SN75LBC771相关的TI元器件型号供参考。

SN75LBC771 - GeoPort(TM) 收发器 - 其它线电路 - 其它接口 - 德州仪器

产品描述

The SN75LBC771 is a low-power LinBiCMOSTM device that incorporates the drivers and receivers for a 9-pin GeoPort host interface. GeoPort combines hybrid EIA/TIA-422-B and EIA/TIA-423-B drivers and receivers to transmit data up to four-Mbit/s full duplex. GeoPort is a serial communications standard that is intended to replace the RS-232, AppleTalk, and printer ports all in one connector in addition to providing real-time data transfer capability. The SN75LBC771 provides point-to-point connections between GeoPort-compatible devices with data transmission rates up to 4-Mbit/s full duplex featuring a hot-plug capability. Applications include connection to telephone, ISDN, digital sound and imaging, fax-data modems, and other traditional serial and parallel connections. The GeoPort is backwardly compatible to both LocalTalk and AppleTalk.

While the SN75LBC771 is powered off (VCC and VEE = 0), the outputs are in a high-impedance state. Also, when the shutdown (SHDN) terminal is high, all outputs go into a high-impedance state. A logic high on the driver enable (DEN\) terminal places the outputs of the differential driver into a high-impedance state. All drivers and receivers have fail-safe mechanisms that ensure a high output state when the inputs are left open.

The SN75LBC771 is characterized for operation over the 0°C to 70°C temperature range.

H = high level, L = low level, X = irrelevant, ? = indeterminate, Z = high impedance (off)

-0.2 V < VID < 0.2 V

产品特性

Supports a 9-Pin GeoPortTM Host Interface Standard for the Intelligent Network Port
Designed to Operate up to 4-Mbit/s Full Duplex
±5 V Supply Operation
Provides 6 kV ESD Protection
Has Driver Short-Circuit Protection
Includes Failsafe Mechanism for Open Inputs
Is Backward Compatible with AppleTalkTM and LocalTalkTM
Combines Multiple Components into a Single Chip Solution
Complements the SN75LBC772 9-Pin GeoPort Peripheral (DCE) Interface Device
Uses LinBiCMOSTM Process Technology
GeoPort, LocalTalk, and AppleTalk are trademarks of Apple Computer, Incorporated. LinBICMOS is a trademark of Texas Instruments Incorporated.

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