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參數資料
| 型號： | DS21S07CE |
| 英文描述： | Interface IC |
| 中文描述： | 接口IC |
| 文件頁數： | 1/7頁 |
| 文件大小： | 84K |
| 代理商： | DS21S07CE |
DS21S07A
SCSI Terminator
DS21S07A
022798 1/7
FEATURES
Fully compliant with SCSI–1, Fast SCSI and Ultra
SCSI
Backward compatible to the DS2107 and DS2107A
Provides active termination for nine signal lines
Laser–trimmed 110 ohm 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 (DS21S07AS) and 20–pin plastic
TSSOP (Thin Shrink Small Outline Package)
(DS21S07AE)
PIN ASSIGNMENT
7
1
2
3
4
5
6
7
8
9
DS21S07AS 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
DS21S07AE 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
.41”
.41”
.27”
.26”
DS21S07AS
DS21S07AE
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 DS21S07A SCSI Terminator, which is fully com-
pliant with these standards, enables the designer to
gain the benefits of active termination: greater immunity
to voltage drops on the TERMPWR (TERMination
PoWeR) line, enhanced high-level noise immunity, in-
trinsic TERMPWR decoupling, and very low quiescent
current consumption. The DS21S07A integrates a reg-
ulator and nine precise switched 110 ohm termination
resistors into a monolithic IC. The DS21S07A can be
electrically isolated from the SCSI bus without physical
removal from the SCSI device.
相關PDF資料 |
PDF描述 |
|---|---|
| DS21S07CS | Interface IC |
| DS21T05S | Terminator |
| DS21T05Z | Terminator |
| DS21T07E | Terminator |
| DS21T07S | Terminator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS21S07CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
| DS21T05 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:SCSI Terminator |
| DS21T05S | 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 |
| DS21T05S/T&R | 制造商:Maxim Integrated Products 功能描述:IC TERMINATOR SCSI 300MIL 16SOIC |
| DS21T05S/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 |
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