Новый оригинальный TM1991L-F5 интегральной схемы/DS1991L +
- Категория товара: Electronic Components, Accessories & Telecommunications >>>
- Поставщик (Оптовый магазин): Shenzhen,Allnewsemi,Electronic,Co.,Ltd.
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Характеристики
Products Description
iButton DESCRIPTION
The DS1991 MultiKey iButton is a rugged read/write data carrier that acts as three separate electronic keys, offering 1,152 bits of secure, nonvolatile memory. Each key is 384 bits long with distinct 64-bit password and public ID fields (Figure 1). The password field must be matched in order to access the secure memory. Data is transferred serially via the 1-Wire protocol, which requires only a single data lead and a ground return. The 512-bit scratchpad serves to ensure integrity of data transfers to secure memory. Data should first be written to the scratchpad where it can be read back. After the data has been verified, a copy scratchpad command will transfer the data to the secure memory. This process ensures data integrity when modifying the memory. A 48-bit serial number is factory lasered into each DS1991 to provide a guaranteed unique identity which allows for absolute traceability. The family code for the DS1991 is 02h. The durable MicroCan package is highly resistant to environmental hazards such as dirt, moisture and shock. Its compact button-shaped profile is self-aligning with mating receptacles, allowing the DS1991 to be easily used by human operators. Accessories permit the DS1991 to be mounted on plastic key fobs, photo-ID badges,printed-circuit boards or any smooth surface of an object. Applications include secure access control, debit tokens,work-in-progress tracking, electronic travelers and proprietary data.
SPECIAL FEATURES
■ 1,152-bit secure read/write, nonvolatile memory
■ Secure memory cannot be deciphered without matching 64-bit password
■ Memory is partitioned into 3 blocks of 384 bits each
■ 64-bit password and ID fields for each memory block
■ 512-bit scratchpad ensures data transfer integrity
■ Operating temperature range: -40°C to +70°C
■ Over 10 years of data retention
COMMON iButton FEATURES
■ Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC tester)
assures absolute traceability because no two parts are alike
■ Multidrop controller for MicroLAN
■ Digital identification and information by momentary contact
■ Chip-based data carrier compactly stores information
■ Data can be accessed while affixed to object
■ Economically communicates to bus master with a single digital signal at 16.3k bits per second
■ Standard 16 mm diameter and 1-Wire protocol ensure compatibility with iButton family
■ Button shape is self-aligning with cup shaped probes
■ Durable stainless steel case engraved with registration number withstands harsh environments
■ Easily affixed with self-stick adhesive backing, latched by its flange, or locked with
■ ring pressed onto its rim
■ Presence detector acknowledges when reader first applies voltage
■ Meets UL#913 (4th Edit.); Intrinsically Safe Apparatus, Approved under Entity Concept for use in Class I, Division 1, Group A,
B, C and D Locations
The DS1991 MultiKey iButton is a rugged read/write data carrier that acts as three separate electronic keys, offering 1,152 bits of secure, nonvolatile memory. Each key is 384 bits long with distinct 64-bit password and public ID fields (Figure 1). The password field must be matched in order to access the secure memory. Data is transferred serially via the 1-Wire protocol, which requires only a single data lead and a ground return. The 512-bit scratchpad serves to ensure integrity of data transfers to secure memory. Data should first be written to the scratchpad where it can be read back. After the data has been verified, a copy scratchpad command will transfer the data to the secure memory. This process ensures data integrity when modifying the memory. A 48-bit serial number is factory lasered into each DS1991 to provide a guaranteed unique identity which allows for absolute traceability. The family code for the DS1991 is 02h. The durable MicroCan package is highly resistant to environmental hazards such as dirt, moisture and shock. Its compact button-shaped profile is self-aligning with mating receptacles, allowing the DS1991 to be easily used by human operators. Accessories permit the DS1991 to be mounted on plastic key fobs, photo-ID badges,printed-circuit boards or any smooth surface of an object. Applications include secure access control, debit tokens,work-in-progress tracking, electronic travelers and proprietary data.
SPECIAL FEATURES
■ 1,152-bit secure read/write, nonvolatile memory
■ Secure memory cannot be deciphered without matching 64-bit password
■ Memory is partitioned into 3 blocks of 384 bits each
■ 64-bit password and ID fields for each memory block
■ 512-bit scratchpad ensures data transfer integrity
■ Operating temperature range: -40°C to +70°C
■ Over 10 years of data retention
COMMON iButton FEATURES
■ Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC tester)
assures absolute traceability because no two parts are alike
■ Multidrop controller for MicroLAN
■ Digital identification and information by momentary contact
■ Chip-based data carrier compactly stores information
■ Data can be accessed while affixed to object
■ Economically communicates to bus master with a single digital signal at 16.3k bits per second
■ Standard 16 mm diameter and 1-Wire protocol ensure compatibility with iButton family
■ Button shape is self-aligning with cup shaped probes
■ Durable stainless steel case engraved with registration number withstands harsh environments
■ Easily affixed with self-stick adhesive backing, latched by its flange, or locked with
■ ring pressed onto its rim
■ Presence detector acknowledges when reader first applies voltage
■ Meets UL#913 (4th Edit.); Intrinsically Safe Apparatus, Approved under Entity Concept for use in Class I, Division 1, Group A,
B, C and D Locations
Product Display
Company Profile
ANSC is a global provider of electronics & pcb & design.Low price, high quality, win-win!We sincerely welcome customers from various circles to negotiate and let''s develope long-time mutually beneficial corperation partners.
All New Semi Co. is a world-class professional supplier of IC,Diodes,Resistors,Capacitors,Fuse and Switch...established in 2003,has more than 10 years history in China and international electronic markets!
As a professional trading company in shenzhen,We specialize in Integrated Circuit(ICs), SMD Transistor, SMD Diode, Ceramic High Capacitor and Tantalum Capacitor.
We provide you one-stop service of electronic components.
When you need any electronic components,
Just please send the Part Numbers what you are looking for to us,
We will quote all of them as soon as possible.
New Original integrated circuit DS1425L-F5
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Payment & Delivery
The terms of payment:
T/T (wire transfer) , PAYPAL , WERTERN UNION and Alipay. You may choose any payment options at your convenience.
Recommend to use the Trade Assurance order: a variety of secure payment options, mutual benefit and mutual benefit!
The deliver parts:
Package : carton or wooden box
Lead time : 2-3 days
Lead time : 2-3 days
Normally ship by DHL, Fedex ,TNT,UPS etc Worldwide Express or by shipment.
FAQ
Q:How can I get your pricelist?
A:Please Email us your country name, your detailed contact telephone, fax number, part# you need and how many pieces will you buy.
Q:If I place an order, how long will it take to delivery it?
A:It usually takes about only 2-3 days on receipt of payment, depends on the quantity ordered and the stock status.
Q:How do you deliver parts to us?
A:Normally sent to you by TNT, DHL, UPS etc Worldwide Express or by shipment. Delivery charge is ofen $35.00,but it will be decided by how many you order and where will you need us to send or you may offer us your account
Q:How is the payment made?
A:There are different payment options. You may choose any of following at your convenience.
by western union: you can find your local service from www.westernunion.com.
by T/T (wire transfer) you can pay to our company account for large quantity order.
Q:Guarantee?
A:Product guarantee 30 days covers form, fit, and function and is limited to prorated refund or replacement
Q:If you want to get more information about our company,pls contact us immediately.
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