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參數(shù)資料
| 型號(hào)： | DS2106S/T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 1/6頁(yè) |
| 文件大小： | 0K |
| 描述： | IC TERMINATOR SCSI 28-SOIC |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 28-SOIC |
| 包裝： | 帶卷 (TR) |
DS2106
SCSI Terminator
DS2106
022698 1/6
FEATURES
Fully compliant with SCSI–1, Fast SCSI and
Ultra SCSI
Functionally compatible with DS21S07A
Provides active termination for 18 signal lines
5% tolerance on termination resistors and voltage
regulator
5% tolerance on termination current
Low power down capacitance of 3 pF
Onboard thermal shutdown circuitry
SCSI bus hot plug compatible
Fully supports actively negated SCSI signals
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
GND
R18
R17
R16
R15
R14
NC
HS–GND
NC
R13
R12
R11
R10
VREF
PD
R1
R2
R3
R4
R5
HS–GND
NC
R6
R7
R8
R9
TPWR
DS2106S 28–PIN SOIC (300 MIL)
DESCRIPTION
Fast SCSI and Ultra SCSI require the use of active ter-
minations at both ends of every cable segment in a
SCSI system with single–ended drivers and receivers.
Ultra SCSI requires support of active negation and hot
plugging. The DS2106 is fully compliant with these
standards.
The DS2106 integrates a low drop–out regulator and 18
precise switched 110 ohm termination resistors into a
28–pin 300 mil SOIC package.
Active termination provides: greater immunity to volt-
age drops on the TERMPWR (TERMination PoWeR)
line, enhanced high–level noise immunity, intrinsic
TERMPWR decoupling, and very low quiescent current
consumption. One DS2106 can be used to terminate
the Narrow SCSI bus, and a DS21S07A can be used
with a DS2106 for termination of a Wide SCSI bus.
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