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UCC5631AFQPTR PDF预览

UCC5631AFQPTR

更新时间： 2024-11-26 20:04:55
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理接口集成电路
页数 文件大小 规格书
6页 60K
描述
IC 9-LINE 105 ohm SCSI BUS TERMINATOR, PQFP48, GREEN, LQFP-48, Bus Terminator

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中文翻译

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UCC5631AFQPTR 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：QFP
包装说明：LFQFP, QFP48,.35SQ,20针数：48
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.71
差分输出：YES接口集成电路类型：SCSI BUS TERMINATOR
JESD-30 代码：S-PQFP-G48长度：7 mm
功能数量：1信号线数量：9
端子数量：48最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：LFQFP封装等效代码：QFP48,.35SQ,20
封装形状：SQUARE封装形式：FLATPACK, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED电源：3/5 V
标称上拉电阻：105 Ω认证状态：Not Qualified
座面最大高度：1.6 mm子类别：Bus Terminators
最大供电电压：5.25 V最小供电电压：2.7 V
标称供电电压：3.3 V表面贴装：YES
技术：BICMOS温度等级：COMMERCIAL
端子形式：GULL WING端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7 mmBase Number Matches：1

UCC5631AFQPTR 数据手册

 浏览型号UCC5631AFQPTR的Datasheet PDF文件第2页浏览型号UCC5631AFQPTR的Datasheet PDF文件第3页浏览型号UCC5631AFQPTR的Datasheet PDF文件第4页浏览型号UCC5631AFQPTR的Datasheet PDF文件第5页浏览型号UCC5631AFQPTR的Datasheet PDF文件第6页 
UCC5631A  
Multimode SCSI 9 Line Terminator  
FEATURES  
DESCRIPTION  
• Auto Selection Single Ended (SE) or  
Low Voltage Differential (LVD)  
Termination  
The UCC5631A Multimode SCSI Terminator provides a smooth transition  
into the next generation of the SCSI Parallel Interface (SPI-2). It automati-  
cally senses the bus, via DIFFB, and switches the termination to either sin-  
gle ended (SE) or low voltage differential (LVD) SCSI, dependent on which  
type of devices are connected to the bus. The UCC5631A can not be used  
on a HVD, EIA485, differential SCSI bus. If the UCC5631A detects a HVD  
SCSI device, it switches to a high impedance state.  
• Meets SCSI-1, SCSI-2, SCSI-3, SPI,  
Ultra (Fast-20), Ultra2 (SPI-2 LVD)  
and Ultra3 Standards  
• 2.7V to 5.25V Operation  
• Differential Failsafe Bias  
The Multimode terminator contains all functions required to terminate and  
auto detect and switch modes for SPI-2 bus architectures. Single Ended  
and Differential impedances and currents are trimmed for maximum effec-  
tiveness. Fail Safe biasing is provided to insure signal integrity. Device/Bus  
type detection circuitry is integrated into the terminator to provide automatic  
switching of termination between single ended and LVD SCSI and a high  
impedance for HVD SCSI. The multimode function provides all the perfor-  
mance analog functions necessary to implement SPI-2 termination in a sin-  
gle monolithic device.  
• Thermal packaging for low junction  
temperature and better MTBF  
• Master/Slave Input  
• Supports Active Negation  
• 3pF Channel Capacitance  
• Reversed Disconnect Polarity  
The UCC5631A is offered in a 36 pin SSOP package, as well as a 48 pin  
LQFP package for a temperature range of 0°C to 70°C.  
BLOCK DIAGRAM  
HIPD LVD  
35 34  
SE  
33  
(NOISE LOAD)  
REF 1.3V  
HIPD  
2.15V  
1.3V  
20 DIFSENS  
DIFFB 21  
LVD  
SE  
–15mA ≤ I  
≤ –5mA  
SOURCE  
0.6V  
50µA ≤ I  
≤ 200µA  
SINK  
19  
MSTR/SLV  
110  
124  
SOURCE/SINK REGULATOR  
SE REF 2.7V  
56mV  
52.5  
52.5  
–
+
5
4
L1–  
L1+  
LVD REF 1.25V  
56mV  
+
–
ALL  
SWITCHES  
MODE  
SE GND SWITCH  
SE  
LVD  
UP  
110  
124  
10µA  
DOWN  
OPEN  
OPEN  
HIPD  
56mV  
52.5  
52.5  
ENABLE  
SWITCHES  
–
+
DISCNCT  
17  
DISCNCT  
32 L9–  
31 L9+  
56mV  
+
–
TRMPWR 36  
SE GND SWITCH  
18  
8
9
10  
26  
27  
28  
1
PATENTED CIRCUIT DESIGN  
GND  
REG  
HS/GND  
UDG-99165  
Note: Indicated pinout is for 36 pin SSOP package.  
SLUS443 - OCTOBER 1999  
123456

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