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DS1972 pdf
消耗积分:3 |
格式:rar |
大小:333 |
2008-04-15
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The DS1972 is a 1024-bit, 1-Wire EEPROM
organized as four memory pages of 256 bits each in
a rugged iButton package. Data is written to an 8-
byte scratchpad, verified, and then copied to the
EEPROM memory. As a special feature, the four
memory pages can individually be write protected or
put in EPROM-emulation mode, where bits can only
be changed from a 1 to a 0 state. The DS1972
communicates over the single-conductor 1-Wire bus.
The communication follows the standard Dallas
Semiconductor 1-Wire protocol. Each device has its
own unalterable and unique 64-bit ROM registration
number that is factory lasered into the device. The
registration number is used to address the device in
a multidrop 1-Wire net environment.
organized as four memory pages of 256 bits each in
a rugged iButton package. Data is written to an 8-
byte scratchpad, verified, and then copied to the
EEPROM memory. As a special feature, the four
memory pages can individually be write protected or
put in EPROM-emulation mode, where bits can only
be changed from a 1 to a 0 state. The DS1972
communicates over the single-conductor 1-Wire bus.
The communication follows the standard Dallas
Semiconductor 1-Wire protocol. Each device has its
own unalterable and unique 64-bit ROM registration
number that is factory lasered into the device. The
registration number is used to address the device in
a multidrop 1-Wire net environment.
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