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SN75976A-EP

更新时间： 2024-11-19 12:21:43
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德州仪器 - TI /
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29页 578K
描述
9-CHANNEL DIFFERENTIAL TRANSCEIVER

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SN75976A-EP 数据手册

 浏览型号SN75976A-EP的Datasheet PDF文件第2页浏览型号SN75976A-EP的Datasheet PDF文件第3页浏览型号SN75976A-EP的Datasheet PDF文件第4页浏览型号SN75976A-EP的Datasheet PDF文件第5页浏览型号SN75976A-EP的Datasheet PDF文件第6页浏览型号SN75976A-EP的Datasheet PDF文件第7页 
SN75976A-EP  
9-CHANNEL DIFFERENTIAL TRANSCEIVER  
www.ti.com  
SLLS878A–JANUARY 2008–REVISED FEBRUARY 2008  
1
FEATURES  
•
Controlled Baseline  
DGG PACKAGE  
(TOP VIEW)  
–
–
–
One Assembly Site  
One Test Site  
GND  
BSR  
CRE  
CDE2  
CDE1  
CDE0  
9B+  
1
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
One Fabrication Site  
2
•
•
Extended Temperature Performance of –55°C  
to 125°C  
3
1A  
1DE/RE  
2A  
4
Enhanced Diminishing Manufacturing Sources  
(DMS) Support  
9B−  
5
8B+  
6
•
•
•
Enhanced Product-Change Notification  
2DE/RE  
3A  
8B−  
7B+  
7
(1)  
Qualification Pedigree  
8
3DE/RE  
4A  
7B−  
6B+  
9
Designed to Operate at up to 20 Million Data  
Transfers per Second (Fast-20 SCSI)  
10  
11  
12  
4DE/RE  
VCC  
6B−  
VCC  
•
Nine Differential Channels for the Data and  
Control Paths of the Small Computer Systems  
Interface (SCSI) and Intelligent Peripheral  
Interface (IPI)  
GND 13  
44 GND  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
GND  
GND  
GND  
GND  
VCC  
GND  
GND  
GND  
GND  
VCC  
5B+  
5B−  
4B+  
4B−  
3B+  
3B−  
2B+  
2B−  
1B+  
1B−  
•
SN75976A Packaged in Thin Shrink  
Small-Outline Package with 20-Mil Terminal  
Pitch (DGG)  
•
•
Two Skew Limits Available  
5A  
ESD Protection on Bus Terminals Exceeds  
12 kV  
5DE/RE  
6A  
•
•
•
•
Low Disabled Supply Current 8 mA Typical  
Thermal Shutdown Protection  
6DE/RE  
7A  
7DE/RE  
8A  
8DE/RE  
9A  
9DE/RE  
Positive and Negative Current Limiting  
Power-Up/Down Glitch Protection  
(1) Component qualification in accordance with JEDEC and  
industry standards to ensure reliable operation over an  
extended temperature range. This includes, but is not limited  
to, Highly Accelerated Stress Test (HAST) or biased 85/85,  
temperature cycle, autoclave or unbiased HAST,  
electromigration, bond intermetallic life, and mold compound  
life. Such qualification testing should not be viewed as  
justifying use of this component beyond specified  
performance and environmental limits.  
Terminals 13 through 17 and 40 through 44 are con-  
nected together to the package lead frame  
and signal ground.  
DESCRIPTION/ORDERING INFORMATION  
The SN75976A is an improved replacement for the industry's first 9-channel 485 transceiver – the SN75LBC976.  
The A version offers improved switching performance, a smaller package, and higher ESD protection. The  
SN75976A is offered in two versions. The '976A2 skew limits of 4 ns for the differential drivers and 5 ns for the  
differential receivers complies with the recommended skew budget of the Fast-20 SCSI standard for data transfer  
rates up to 20 million transfers per second. The '976A1 supports the Fast SCSI skew budget for 10 million  
transfers per second. The skew limit ensures that the propagation delay times, not only from channel-to-channel  
but from device-to-device, are closely matched for the tight skew budgets associated with high-speed parallel  
data buses.  
1
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2008, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...29

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