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參數(shù)資料
| 型號(hào)： | UCC5610QPTR |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | QUAD OPERATIONAL AMPLIFIER AND PROGRAMMABLE VOLTAGE REFERENCE |
| 中文描述： | 終結(jié)者 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大小： | 265K |
| 代理商： | UCC5610QPTR |
The UCC5610 provides 18 lines of active termination for a SCSI (Small
Computer Systems Interface) parallel bus. The SCSI standard recom-
mends active termination at both ends of the cable.
The UCC5610 is ideal for high performance 3.3V SCSI systems. The key
features contributing to such low operating voltage are the 0.1V drop out
regulator and the 2.75V reference. The reduced reference voltage was
necessary to accommodate the lower termination current dictated in the
SCSI-3 specification. During disconnect the supply current is typically
only 0.5
μ
A, which makes the IC attractive for battery powered systems.
The UCC5610 is designed with an ultra low channel capacitance of
1.8pF, which eliminates effects on signal integrity from disconnected ter-
minators at interim points on the bus.
The UCC5610 can be programmed for either a 110 ohm or 2.5k ohm ter-
mination. The 110 ohm termination is used for standard SCSI bus lengths
and the 2.5k ohm termination is typically used in short bus applications.
When driving the TTL compatible DISCNCT pin directly, the 110 ohm ter-
mination is connected when the DISCNCT pin is driven low, and discon-
nected when driven high. When the DISCNCT pin is driven through an
impedance between 80k and 150k, the 2.5k ohm termination is con-
nected when the DISCNCT pin is driven low, and disconnected when
driven high.
UCC5610
18-Line 3-5 Volt Low Capacitance SCSI Active Terminator
FEATURES
Complies with SCSI, SCSI-2, SCSI-3
and FAST-20 (Ultra) Standards
DESCRIPTION
BLOCK DIAGRAM
Circuit Design Patented
2.75V to 7V Operation
1.8pF Channel Capacitance during
Disconnect
0.5
μ
A Supply Current in Disconnect
Mode
110 Ohm/2.5k Programmable
Termination
Completely Meets SCSI Hot Plugging
-650mA Sourcing Current for
Termination
+400mA Sinking Current for Active
Negation Drivers
Trimmed Termination Current to 4%
Trimmed Impedance to 7%
Current Limit and Thermal Shutdown
Protection
continued
2/97
UDG-94128-1
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UCC5611DWP | QUAD OPERATIONAL AMPLIFIER AND PROGRAMMABLE VOLTAGE REFERENCE |
| UCC5611DWPTR | QUAD OPERATIONAL AMPLIFIER AND PROGRAMMABLE VOLTAGE REFERENCE |
| UCC5611J | Triple voltage and current supervisor |
| UCC5611N | Triple voltage and current supervisor |
| UCC5611QP | PRIMARY CONTROLLER WITH STANDBY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UCC5611 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:18-Line 3-5 Volt SCSI Active Terminator, Reverse Disconnect |
| UCC5611DWP | 功能描述:IC SCSI 18-LINE TERM 28-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)終端器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:SCSI，SE 端子數(shù):9 電源電壓:4 V ~ 5.25 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| UCC5611DWPTR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Terminator |
| UCC5611J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Terminator |
| UCC5611N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Terminator |
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