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參數資料
| 型號： | DS21T07 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | SCSI Terminator(SCSI終端) |
| 中文描述： | SCSI端接器 |
| 文件頁數： | 1/7頁 |
| 文件大?。?/td> | 89K |
| 代理商： | DS21T07 |
DS21T07
SCSI Terminator
DS21T07
PRELIMINARY
070198 1/7
FEATURES
Fully compliant with SCSI–1, Fast SCSI and Ultra
SCSI
Backward compatible to the DS2107, DS2107A, and
DS21S07
Provides active termination for nine signal lines
Laser–trimmed 110 ohms termination resistors have
2% tolerance
Low dropout voltage regulator
Power–down mode isolates termination resistors
from the bus
SCSI bus hot–plug compatible
Fully supports actively negated SCSI signals
Onboard thermal shutdown circuitry
16–pin plastic SOIC (DS21T07S) and 20–pin plastic
TSSOP (Thin Shrink Small Outline Package)
(DS21T07E)
PIN ASSIGNMENT
7
1
2
3
4
5
6
7
8
9
DS21T07S 16–PIN SOIC (300 MIL)
TERMPWR1
R1
R2
R3
R4
R5
VREF1
GND
PD
VREF2
NC
R9
R8
R7
R6
TERMPWR2
1
2
3
4
5
6
8
9
DS21T07E 20–PIN TSSOP (173 MIL)
TERMPWR1
R1
R2
R3
R4
R5
VREF1
GND
PD
VREF2
NC
R9
R8
R7
R6
TERMPWR2
HS–GND
HS–GND
HS–GND
HS–GND
10
11
12
13
14
15
16
17
18
19
20
11
12
13
14
15
16
10
ACTUAL FOOTPRINT SIZE
0.41”
0.41”
0.27”
0.26”
DS21T07S
DS21T07E
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.
The DS21T07 SCSI Terminator, which is fully compliant
with these standards, enables the designer to gain the
benefits of active termination: 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. The DS21T07 integrates a regulator and
nine precise switched 110 ohms termination resistors
into a monolithic IC. The DS21T07 can be electrically
isolated from the SCSI bus without physical removal
from the SCSI device.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DS21T07E | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| DS21T07E/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:DALLAS SEMI 功能描述: 制造商:Maxim Integrated Products 功能描述:IC TERMINATOR SCSI 20-TSSOP |
| DS21T07E/T&R/C16 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS21T07E/T&R | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| DS21T07E/T&R/C03 | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
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