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上海博棒電子科技有限公司
主營產(chǎn)品： LASCAR 溫度記錄儀,HOBO記錄儀,iButton溫濕度記錄儀 |
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聯(lián)系電話
|
上海博棒電子科技有限公司
主營產(chǎn)品： LASCAR 溫度記錄儀,HOBO記錄儀,iButton溫濕度記錄儀 |
聯(lián)系電話
DS1996 64Kb Memory iButton存儲(chǔ)器
The DS1996 Memory iButton is a rugged read/write data carrier that acts as a localized database that can
be easily accessed with minimal hardware. The nonvolatile memory offers a simple solution to storing
and retrieving vital information pertaining to the object to which the iButton is attached. Data is
transferred serially via the 1-Wire protocol which requires only a single data lead and a ground return.
The scratchpad is an additional page that acts as a buffer when writing to memory. Data is first 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 memory. This process ensures data integrity when modifying the memory. A
48-bit serial number is factory lasered into each DS1996 to provide a guaranteed unique identity which
allows for absolute traceability. 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 DS1996 to be easily used by human operators. Accessories permit the DS1996
to be mounted on almost any surface including plastic key fobs, photo-ID badges and printed circuit
boards. Applications include access control, work-in-progress tracking, electronic travelers, storage of
calibration constants, and debit tokens.
DS1996 64Kb Memory iButton存儲(chǔ)器
SPECIAL FEATURES
? 65,536 bits of read/write nonvolatile memory
? Overdrive mode boosts communication
speed to 142 kbits per second
? 256-bit scratchpad ensures integrity of data
transfer
? Memory partitioned into 256-bit pages for
packetizing data
? Data integrity assured with strict read/write
protocols
? Operating temperature range from -40°C to
+70°C
? Over 10 years of data retention
DS1996 64Kb Memory iButton存儲(chǔ)器
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 16.3 kbits per
second
? Standard 16 mm diameter and 1-Wire ®
protocol ensure compatibility with iButton ®
family
? Button shape is self-aligning with cup-
shaped probes
