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参数资料
| 型号： | DS21T07E |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Bus Terminator |
| 英文描述： | 9-LINE 110 ohm SCSI BUS TERMINATOR, PDSO20 |
| 封装： | 0.173 INCH, PLASTIC, TSSOP-20 |
| 文件页数： | 1/7页 |
| 文件大小： | 101K |
| 代理商： | DS21T07E |
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112099
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
ACTUAL FOOTPRINT SIZE
DESCRIPTION
Fast SCSI and Ultra SCSI require the use of active terminations 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 voltage 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.
DS21T07
SCSI Terminator
www.dalsemi.com
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17
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PD
VREF2
HS-GND
R9
R8
R7
R6
HS-GND
TERMPWR2
NC
TERMPWR1
HS-GND
R1
R3
R4
R5
HS-GND
VREF1
GND
R2
DS21T07E 20-pin TSSOP (173-mil)
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9
PD
VREF2
NC
R8
R7
R6
TERMPWR2
R9
TERMPWR1
R1
R3
R4
R5
VREF1
GND
R2
DS21T07S 16-pin SOIC (300-mil)
0.41”
0.26”
0.27”
DS21T07S
DS21T07E
相关PDF资料 |
PDF描述 |
|---|---|
| DS21T07S | 9-LINE 110 ohm SCSI BUS TERMINATOR, PDSO16 |
| DS21T09S | 18-LINE 110 ohm SCSI BUS TERMINATOR, PDSO28 |
| DS2223 | 256 X 1 STANDARD SRAM, 1000 ns, PBCY3 |
| DS2223Z | 256 X 1 STANDARD SRAM, 1000 ns, PDSO4 |
| DS2224 | 224 X 1 STANDARD SRAM, 1000 ns, PBCY3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 接口集成电路 RoHS:否 制造商:Texas Instruments 工作电源电压:2.7 V to 5.25 V 电源电流:13 mA 最大工作温度:+ 70 C 最小工作温度:0 C 安装风格:SMD/SMT 封装 / 箱体:SSOP-36 封装:Tube |
| DS21T07E/T&R/C03 | 功能描述:SCSI 接口集成电路 RoHS:否 制造商:Texas Instruments 工作电源电压:2.7 V to 5.25 V 电源电流:13 mA 最大工作温度:+ 70 C 最小工作温度:0 C 安装风格:SMD/SMT 封装 / 箱体:SSOP-36 封装:Tube |
| DS21T07E/T&R/C16 | 功能描述:SCSI 接口集成电路 RoHS:否 制造商:Texas Instruments 工作电源电压:2.7 V to 5.25 V 电源电流:13 mA 最大工作温度:+ 70 C 最小工作温度:0 C 安装风格:SMD/SMT 封装 / 箱体:SSOP-36 封装:Tube |
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