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SN75LBC978DL PDF预览

SN75LBC978DL

更新时间： 2024-11-18 22:27:23
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
16页 239K
描述
9-CHANNEL DIFFERENTIAL TRANSCEIVER

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SN75LBC978DL 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：SSOP包装说明：SSOP, SSOP56,.4
针数：56Reach Compliance Code：compliant
ECCN代码：5A991.BHTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：5.8
其他特性：COMMON I/O; ADDITIONAL COMMON ENABLE INPUT差分输出：YES
驱动器位数：9高电平输入电流最大值：0.0001 A
输入特性：DIFFERENTIAL SCHMITT TRIGGER接口集成电路类型：LINE TRANSCEIVER
接口标准：X3.131; EIA-485; SCSI-2; SCSI-3; ISO 8482JESD-30 代码：R-PDSO-G56
JESD-609代码：e4长度：18.415 mm
湿度敏感等级：2功能数量：9
端子数量：56最高工作温度：70 °C
最低工作温度：最小输出摆幅：1 V
输出特性：3-STATE最大输出低电流：0.008 A
输出极性：COMPLEMENTARY封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装等效代码：SSOP56,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：5 V
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
子类别：Line Driver or Receivers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
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED最大传输延迟：26.4 ns
宽度：7.5 mmBase Number Matches：1

SN75LBC978DL 数据手册

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SN75LBC978  
9-CHANNEL DIFFERENTIAL TRANSCEIVER  
SLLS134E – APRIL 1992 – REVISED MAY 1997  
Nine Differential Channels for the Data and  
Control Paths of the Differential Small  
Computer Systems Interface (SCSI)  
DL PACKAGE  
(TOP VIEW)  
NC  
WRAP2  
WRAP1  
1A  
1DE/RE  
2A  
2DE/RE  
3A  
3DE/RE  
4A  
NC  
NC  
CE  
Meets or Exceeds the Requirements of  
ANSI Standard RS-485 and ISO  
8482:1987(E)  
1
56  
55  
54  
2
3
4
53 9B+  
52 9B–  
Packaged in Shrink Small-Outline Package  
With 25-mil Terminal Pitch  
5
6
51  
50  
49  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
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  
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 LinBiCMOS  
process 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)andthecontrolpath(ninebits)fortheSmall  
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.  
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...16

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SN75LBC978DL 替代型号

型号 品牌 替代类型 描述 数据表
SN75LBC978DLRG4 TI

完全替代

 9-Channel Differential Transceiver 56-SSOP 0 to 70
SN75LBC978DLG4 TI

完全替代

 9 LINE TRANSCEIVER, PDSO56, GREEN, PLASTIC, SSOP-56

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