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參數(shù)資料
| 型號： | UCC5646 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | 27 Line Active Terminator For low-voltage-Differential(27線 小型計算機系統(tǒng)終端匹配器) |
| 中文描述： | 27線主動終結(jié)者對于低電壓差分（27線小型計算機系統(tǒng)終端匹配器） |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 98K |
| 代理商： | UCC5646 |
2 2
1
SLUS386A – FEBRUARY 2000 – REVISED JUNE 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
SCSI SPI-2, SPI-3, Ultra160
Compliance
Smallest Footprint
Lowest Channel
Capacitance, 2 pF
Less than 0.5-pF Capacitance
Differential Between Pairs
2.7 V to 5.25 V Operation
Differential Failsafe Bias
64-Pin Low Profile QFP
description
The UCC5646 is a twenty-seven line active terminator for low-voltage-differential (LVD) SCSI networks. This
LVD SCSI-only design allows the user to reach peak bus performance, while reducing system cost. The device
is designed as an active Y-terminator to improve the frequency response of the LVD SCSI Bus. Designed with
a 2-pF (typical) channel capacitance, the UCC5646 allows for minimal bus loading for a maximum number of
peripherals. With the UCC5646, the designer is able to comply with the Ultra2, Ultra3, and Ultra160
specifications. The UCC5646 also provides a much-needed system migration path for the ever improving SCSI
system standards.
This device is available in the 64-pin low-profile QFP package for ease of layout use.
Single-ended (SE) and high-voltage differential (HVD) SCSI drivers are not supported.
AVAILABLE OPTIONS
DISCONNECT
STATUS
PACKAGED DEVICES
LOW PROFILE QFP
(PM)
UCC5646PM
UCC5647PM
TA
0
°
C to 70
°
C
REGULAR
REVERSE
The PM package is available taped and reeled. Add TR suffix to
device type (e.g. UCC5646PMTR) to order quantities of 1000
devices per reel.
Copyright
2000, Texas Instruments Incorporated
$'!(*&,$(' $+ -** ', + (! )-%$,$(' ,
*(-,+ ('!(*& ,( +) $!$,$('+ ) * ,# , *&+ (! /+ '+,*-& ',+
+,'* .**',0*(-,$(' )*( ++$'" ( + '(, ' ++*$%0 $'%-
, +,$'" (! %% )*& , *+
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.
1718 19
DISCNCT1
DISCNCT2
L21–
L21+
L20–
L20+
L19–
L19+
DIFSENS
DIFFB
L18–
L18+
L17–
L17+
L16–
L16+
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
L25–
L25+
L26–
L26+
L27–
L27+
STRMPWR
PTRMPWR
REG
SGND
PGND
LVD
L10–
L10+
L11–
L11+
21 22 23 24
L
L
63 62 61 60 59
64
58
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
56 55 54
57
25 26 27 28 29
53 52
L
L
L
51 50 49
30 31 32
L
L
L
L
L
L
L
L
L
For the UCC5647, Pin 47 is DISCNCT1 and Pin 48 is DISCNCT2.
PM PACKAGE
(TOP VIEW)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UCC5672 | Multimode (LVD/SE) SCSI 9 Line Terminator(多模式小型計算機接口9線終端匹配器) |
| UCC5680 | LVD-only Small Computer System Interface (SCSI) terminator(低壓差分小型計算機接口終端匹配器) |
| UCC5681 | Low Voltage Differential (LVD) SCSI 9 Line Terminator(用于低壓差分小型計算機系統(tǒng)接口的9線終端匹配器) |
| UCC5686 | Twenty-seven line Active Terminator for Low-voltage-differential (LVD) SCSI Networks.(用于低壓差分小型計算機網(wǎng)絡(luò)的27線終端匹配器) |
| UCC5687 | Twenty-seven Line Active Terminator For Low-voltage-differential (LVD) SCSI Networks.(用于低壓差分小型計算機系統(tǒng)接口的27線終端匹配器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UCC5646PM | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| UCC5646PMTR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TERMINATOR|BICMOS|QFP|64PIN|PLASTIC |
| UCC5647PM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TERMINATOR|BICMOS|QFP|64PIN|PLASTIC |
| UCC5647PMTR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TERMINATOR|BICMOS|QFP|64PIN|PLASTIC |
| UCC5670 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:9-Line Multimode SCSI Terminator with SPI-3 Mode Delay. Disconnect. And Status Lines |
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