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DS2430解密

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    DS2430基本功能特征描述:
  The DS2430A 256-bit 1-Wire EEPROM identifies and stores relevant information about the product to which it is associated. This lot or product specific information can be accessed with minimal interface, for example a single port pin of a microcontroller. The DS2430A consists of a factory-lasered registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (14h) plus 256 bits of user-programmable EEPROM and a 64-bit one-time programmable application register. The power to read and write the DS2430A is derived entirely from the 1-Wire communication line.The TO-92 and TSOC packages provide a compact enclosure that allows standard assembly equipment to handle the device easily for attachment to printed circuit boards or wiring. Typical applications include storage of calibration constants, board identification and product revision status.
  DS2430 FEATURES:
  •256-bit Electrically Erasable Programmable Read Only Memory (EEPROM) plus 64-bit one-time programmable application register
  •Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC tester) assures absolute identity because no two parts are alike
  •Built-in multidrop controller ensurescompatibility with other MicroLAN products
  •EEPROM organized as one page of 32 bytes for random access
  •Reduces control, address, data and power to a single data pin
  •Directly connects to a single port pin of a microprocessor and communicates at up to 16.3 kbits per second
  •8-bit family code specifies DS2430A communication requirements to reader
  •Presence detector acknowledges when reader first applies voltage
  •Low cost TO-92 or 6-pin TSOC surface mount package
  •Reads and writes over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C