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SN75LBC773DWR PDF预览

SN75LBC773DWR

更新时间： 2024-11-06 02:58:35
品牌 Logo 应用领域
德州仪器 - TI 驱动信息通信管理光电二极管接口集成电路驱动器
页数 文件大小 规格书
13页 177K
描述
GEOPORT TRANSCEIVER

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SN75LBC773DWR 数据手册

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SN75LBC773  
GEOPORT TRANSCEIVER  
SLLS247C – FEBRUARY 1997 – NOVEMBER 1997  
Supports a 9-Pin GeoPort Host Interface  
Standard for the Intelligent Network Port  
DW PACKAGE  
(TOP VIEW)  
Designed to Operate up to 4-Mbit/s Full  
Duplex  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
DA1  
GND  
V
V
±5 V Supply Operation  
EE  
CC  
NC  
NC  
DY1  
RY3  
RB3  
RA2  
RY2  
RB1  
RA1  
RY1  
Has Driver Short-Circuit Protection  
Includes Failsafe Mechanism for Open  
Inputs  
REN  
DZ2  
DY2  
GND  
DEN  
DA2  
Is Backward Compatible with AppleTalk  
and LocalTalk  
Combines Multiple Components into a  
Single Chip Solution  
Complements the SN75LBC772 9-Pin  
GeoPort Peripheral (DCE) Interface Device  
Uses LinBiCMOS Process Technology  
logic diagram (positive logic)  
description  
1
18  
DY1  
DA1  
The SN75LBC773 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-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  
7
6
DY2  
DZ2  
10  
DA2  
9
DEN  
12  
13  
RA1  
RB1  
11  
RY1  
15  
RA2  
14  
RY2  
real-time  
data  
transfer  
capability.  
The  
SN75LBC773 provides point-to-point connec-  
tions 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.  
17  
RY3  
16  
RB3  
5
REN  
While the SN75LBC773 is powered off (V  
and V = 0), the outputs are in a high-impedance state. A logic  
EE  
CC  
high on the driver enable (DEN) or logic low on the receive enable (REN) terminals places the outputs of the  
differential driver and receivers, respectively, 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 SN75LBC773 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.  
Copyright 1997, 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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...13

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