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Home » Product Directory » Security & Protection » Safety Products & Supplies » Ibutton (TM1990A)

Ibutton (TM1990A)

Ibutton (TM1990A)
Ibutton (TM1990A)

Product Description

TM1990A SPECIAL FEATURES
Upgrade of DS1990 allows multiple Serial Number iButtons to Reside on a common bus
Unique 48bit serial number
Low-cost electronic key for access control
8-bit CRC for checking data integrity
Can be read in less than 5 ms
Operating temperature range of -40 to +85

COMMON iButton FEATURES
Unique, factory-lasered and tested 64-bit
Registration number (8-bit family code + 48-
Bit serial number + 8bit CRC tester) assures
Absolute traceability because no two parts are alike.

   
Trademark:  SOA
Model NO.:  TM1990A
Productivity:  1000000
Unit Price:  US $ 0.45/ Piece
Shipment Terms:  FOB
Payment Terms:  T/T,Western Union,Paypal
Minimum Order:  1 Pieces
Price Valid Time:  From Oct 07,2011 To Oct 31,2011
Origin:  China
Packing:  Carton Box
Company: Jie An Electronic Factory

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