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SN75LBC978DL-00 PDF预览

SN75LBC978DL-00

更新时间： 2024-09-16 15:52:23
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
19页 413K
描述
LINE TRANSCEIVER, PDSO56

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中文翻译

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SN75LBC978DL-00 技术参数

生命周期：ObsoleteReach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.82Is Samacsys：N
其他特性：COMMON I/O; INDIVIDUAL ENABLES差分输出：YES
驱动器位数：9输入特性：DIFFERENTIAL SCHMITT TRIGGER
接口集成电路类型：LINE TRANSCEIVER接口标准：EIA-485; ISO 8482
JESD-30 代码：R-PDSO-G56长度：18.415 mm
功能数量：1端子数量：56
最高工作温度：70 °C最低工作温度：
输出特性：3-STATE输出极性：COMPLEMENTARY
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
认证状态：Not Qualified最大接收延迟：30.7 ns
接收器位数：9座面最大高度：2.79 mm
最大压摆率：45 mA最大供电电压：5.25 V
最小供电电压：4.75 V标称供电电压：5 V
表面贴装：YES技术：BICMOS
温度等级：COMMERCIAL端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
最大传输延迟：26.4 ns宽度：7.5 mm
Base Number Matches：1

SN75LBC978DL-00 数据手册

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SLLS134F − APRIL 1992 − REVISED APRIL 2005  
D
D
Nine Differential Channels for the Data and  
Control Paths of the Differential Small  
Computer Systems Interface (SCSI)  
DL PACKAGE  
(TOP VIEW)  
NC  
NC  
NC  
CE  
Meets or Exceeds the Requirements of  
ANSI Standard RS-485 and ISO  
8482:1987(E)  
1
56  
55  
54  
WRAP2  
WRAP1  
1A  
1DE/RE  
2A  
2DE/RE  
3A  
3DE/RE  
4A  
2
3
4
53 9B+  
52 9B−  
D
D
D
D
D
D
Packaged in Shrink Small-Outline Package  
With 25-mil Terminal Pitch  
5
6
51  
50  
49  
48  
47  
46  
45  
44  
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42  
41  
40  
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38  
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36  
35  
34  
33  
32  
31  
30  
29  
8B+  
8B−  
7B+  
7B−  
6B+  
6B−  
Designed to Operate at 10 Million Transfers  
Per Second  
7
8
Low Disabled Supply Current  
1.4 mA Typ  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
Thermal Shutdown Protection  
4DE/RE  
Power-Up/Power-Down Glitch Protection  
V
V
CC  
CC  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
Positive and Negative Output-Current  
Limiting  
D
Open-Circuit Fail-Safe Receiver Design  
description  
V
V
CC  
5A  
CC  
The SN75LBC978 is a nine-channel differential  
5B+  
5B−  
4B+  
4B−  
3B+  
3B−  
2B+  
2B−  
1B+  
1B−  
transceiver based on the 75LBC176 LinASIC  
5DE/RE  
6A  
6DE/RE  
7A  
7DE/RE  
8A  
8DE/RE  
9A  
†
cell. Use of TI’s LinBiCMOSprocess technolo-  
gy allows the power reduction necessary to  
†
integrate nine differential balanced transceivers .  
On-chip enabling logic makes this device  
applicable for the data path (eight data bits plus  
parity) and the control path (nine bits) for the Small  
Computer Systems Interface (SCSI) standard.  
The WRAP function allows in-circuit testing and  
wired-OR channels for the BSY, RST, and SEL  
signals of the SCSI bus.  
9DE/RE  
Pins 13 through 17 and 40 through 44 are  
connected together to the package lead  
frame and signal ground.  
The SN75LBC978 is packaged in a shrink  
small-outline package (DL) with improved thermal  
characteristics using heat-sink terminals. This  
package is ideal for low-profile, space-restricted  
applications such as hard disk drives.  
The switching speed of the SN75LBC978 is sufficient to transfer data over the data bus at 10 million transfers  
per second. Each of the nine identical channels conforms to the requirements of the ANSI RS-485 and  
ISO 8482:1987(E) standards referenced by ANSI X3.131-1993 (SCSI-2) and the proposed SCSI-3 standards.  
The SN75LBC978 is characterized for operation from 0°C to 70°C.  
†
Patent Pending  
LinASIC and LinBiCMOS are trademarks of Texas Instruments Incorporated.  
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Copyright 1997, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...19

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