芯谷科技通过DS2432芯片解密资料

更多芯片解密你可以去http://www.pcbqc.com/

下面是DS2432芯片的性能介绍

DS2432 FEATURES：

·On-chip 512-bit SHA-1 engine to compute
160-bit Message Authentication Codes
(MAC) and to generate secrets
·Write access requires knowledge of the secret
and the capability of computing and transmitting
a 160-bit MAC as authorization
·Secret and data memory can be write-protected
(all or page 0 only) or put in EPROMemulation
mode (“write to 0”, page 1)
·Unique, factory-lasered and tested 64-bit registration
number assures absolute traceability
because no two parts are alike
·Built-in multidrop controller ensures compatibility
with other 1-Wire net products
·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 16.3k
bits per second
·Overdrive mode boosts communication speed
to 142k bits per second
·Low cost 6-lead TSOC surface mount package,
or solder-bumped Flipchip package
·Reads and writes over a wide voltage range of
2.8V to 5.25V from -40°C to +85°C

DS2432 DESCRIPTION：

The DS2432 combines 1024 bits of EEPROM, a 64-bit secret, an 8-byte register/control page with up to 5
user read/write bytes, a 512-bit SHA-1 engine and a fully-featured 1-Wire interface in a single chip.
Data is transferred serially via the 1-Wire protocol，which requires
only a single data lead and a ground return. The DS2432 has an additional
memory area called the scratchpad that acts as a buffer when writing to
the main memory ， the register page or when installing a new secret.
Data is first written to the scratchpad from where it can be read back.
After the data has been verified， a copy scratchpad command will transfer
the data to its final memory location ，provided that the DS2432 receives
a matching 160-Bit MAC. The computation of the MAC involves the secret
and additional data stored in the DS2432 including the device ‘s registration
number. Only a new secret can be loaded without providing a MAC. The SHA-1
engine can also be activated to compute160-bit message authentication
codes （MAC ） when reading a memory page or to compute a new secret，
instead of loading it. Applications of the DS2432 include intellectual
property security ， after-market management of consumables ， and taper
proof data carriers.
 

需要芯片解的朋友你可以通过下面的联系方式联系我们深圳市世纪芯集成电路有限公司
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