SN75LBC776

更新时间： 2024-11-04 22:53:31

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
14页	210K
描述
SINGLE-CHIP GeoPortE TRANSCEIVER

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SN75LBC776 数据手册

SN75LBC776

SINGLE-CHIP GeoPort TRANSCEIVER

SLLS221A – NOVEMBER 1995 – REVISED JANUARY 1996

DW PACKAGE

(TOP VIEW)

Single-Chip Interface Solution for the

9-terminal GeoPort Host (DTE)

Designed to Operate up to 4 Mbit/s Full

Duplex

DA1

GND

Single 5-V Supply Operation

C–

C+

DY1

RY3

RB3

RA2

RY2

RB1

RA1

RY1

6-kV ESD Protection on All Terminals

SHDN

DZ2

DY2

GND

DEN

DA2

Backward compatible With AppleTalk and

LocalTalk

Combines Multiple Components into a

Single-chip Solution

Complements the SN75LBC777 9-Terminal

GeoPort Peripheral (DCE) Interface Device

LinBiCMOS Process Technology

description

The SN75LBC776 is a low-power LinBiCMOS 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 megabits per second (Mbit/s) full duplex. GeoPort is a serial communications standard

that is intended to replace the RS-232, Appletalk, and LocalTalk printer ports all in one connector in addition

to providing real-time data transfer capability. It provides point-to-point connections between

GeoPort-compatible devices with data transmission rates up to 4 Mbit/s full duplex and a hot-plug feature.

Applications include connection to telephony, integrated services digital network (ISDN), digital sound and

imaging, fax-data modems, and other serial and parallel connections. The GeoPort is backwardly compatible

to both LocalTalk and AppleTalk.

WhiletheSN75LBC776ispowered-off(V =0)theoutputsareinahigh-impedancestate. Whentheshutdown

(SHDN) terminal is high, the charge pump is powered down and the outputs are in a high-impedance state. The

driver enable (DEN) terminal sends the outputs of the differential driver into a high-impedance state with a high

input signal. All drivers and receivers have fail-safe mechanisms to ensure a high output state when the inputs

are left open.

A switched-capacitor voltage converter generates the negative voltage required from a single 5-V supply using

four 0.1-µF capacitors, two capacitors between the C+ and C- terminals and two capacitors between V and

ground.

The SN75LBC776 is characterized for operation over the 0°C to 70°C temperature range.

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.

GeoPort, LocalTalk, and AppleTalk are trademarks of Apple Computer, Incorporated.

LinBiCMOS is a trademark 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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...14

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与SN75LBC776相关器件

型号	品牌	获取价格	描述	数据表
SN75LBC776DB	TI	获取价格	DUAL LINE TRANSCEIVER, PDSO20, PLASTIC, MO-150, SO-20
SN75LBC776DBR	TI	获取价格	SINGLE-CHIP GeoPort TRANSCEIVER
SN75LBC776DBRG4	TI	获取价格	DUAL LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SSOP-20
SN75LBC776DW	TI	获取价格	SINGLE-CHIP GeoPortE TRANSCEIVER
SN75LBC776DW	ROCHESTER	获取价格	DUAL LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SOIC-20
SN75LBC776DWG4	TI	获取价格	DUAL LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SOIC-20
SN75LBC776DWR	ROCHESTER	获取价格	DUAL LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SOIC-20
SN75LBC776DWR	TI	获取价格	SINGLE-CHIP GeoPort TRANSCEIVER
SN75LBC776DWRG4	TI	获取价格	DUAL LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SOIC-20
SN75LBC777	TI	获取价格	SINGLE CHIP GEOPORTE/AppleTalkE TRANSCEIVER

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