DS21S07AS

DS21S07AS - SCSI Terminator

GENERAL 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 DS21S07A 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 

DS21S07A integrates a regulator and nine precise 

switched 110Ω termination resistors into a 

monolithic IC. The DS21S07A can be electrically 

isolated from the SCSI bus without physical removal 

from the SCSI device. 

FEATURES 

ƒ Fully Compliant with SCSI-1, Fast SCSI, and 

Ultra SCSI 

ƒ Backward Compatible to the DS2107 and 

DS2107A 

ƒ Provides Active Termination for Nine Signal 

Lines 

ƒ Laser-Trimmed 110Ω Termination Resistors 

Have 2% Tolerance 

ƒ Low Drop-Out Voltage Regulator 

ƒ Power-Down Mode Isolates Termination 

Resistors from the Bus 

ƒ SCSI Bus Hot Plug Compatible 

ƒ Fully Supports Actively Negated SCSI Signals 

ƒ On-Board Thermal Shutdown Circuitry 

ƒ 16-Pin Plastic SO (DS21S07AS) and 20-Pin 

Plastic TSSOP (Thin Shrink Small Outline 

Package) (DS21S07AE) 

由于客户采购批量与样品的价格不同，网上无法统一注明，请您把采购型号通过邮件或客服QQ：2850151585 发给我们，也可以拨打明佳达国内销售部电话：0755-83957301，由客服人员为您报价；有时元件厂商价格稍许变动，本公司未能及时调整，如您觉得售价稍高，请与我们说明并适当议价，感谢支持!

MJD is a corporation which engaged in agency electronic components. MJD Through seventeen years unrimitting efforts,  aspire to provide our customers with world-leading products and service. Now already became a one of the most famous electronic components distributor in China.

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 PAYMENTS:

We support the following payment methods:

 1. Paypal

 2. Western Union 

 3. Bank Wire (TT)

 4. MoneyGram

Shipping:

1. MJD needs about 3 BUSINESS DAY to handle the order after received payment. after receiving your payment. Otherwise, we will state it in the invoice in advance.

2. MJD can Ship via your shipping account (DHL / FEDEX / UPS / TNT or others) as your instruction. Or Ship via our shipping account (We have a very good relationship with DHL and FEDEX with very special freight).

3. Regarding the declared value on the package for customs clearance, we are pleased to follow

your wishes, just feel free to inform us when ordering.

4. Any import fees or charges are the buyer's responsibility.

REFUNDS & RETURN:

We offer a warranty on all items that we sold. Item will be tested before ship,it will be in good condition,if there are some problems with the item,feel free to contact us.Please Email us to notify a defective item. Unless otherwise specified, this item comes with 30 days warranty from the shipment date.

You must contact us before returning any product. All returns must be made within 30 days from this shipment date.Return must be in new condition(the SAME CONDITION as it was sent to you)

Because of wholesale price is different from sample price, our website can not state. Please send your required part number via email Sales@hkmjd.com or skype id mjdccm898 to us.  As well as welcome you call us : 0755-83957301  We will send offer for you;  Sometimes manufacturer's price is unstable, so we don't adjust price in time. if you feel price is a little high for you, just feel free to contact us for consultation. Thank you for your support ！