DS1973-F5 ,4 kbit EEPROM iButtonFEATURES Presence detector acknowledges when reader Unique, factory-lasered and tested 64-bitfirs ..
DS1973-F5# ,iButton 4Kb EEPROMFEATURES 4096 bits Electrically Erasable Programmable Unique, factory-lasered and tested 64-bit ..
DS1973-F5+ ,iButton 4Kb EEPROMblock diagram in Figure 1 shows the relationships between the major control and memory sections of ..
DS1977-F5 ,32KB EEPROM iButtonFeaturesThe DS1977 is a 32Kbyte EEPROM in a rugged,• 32KB EEPROM memoryiButton enclosure. Access to ..
DS1977-F5# ,iButton 32KB EEPROMAPPLICATIONS and Absolute Traceability Because No Two Parts Maintenance/Inspection Data Storage are ..
DS1982-F3# ,iButton 1Kb Add-OnlyFEATURES 1024 bits Electrically Programmable Read- Unique, factory-lasered and tested 64-bit Onl ..
DS1973-F5
4 kbit EEPROM iButton
SPECIAL FEATURES4096 bits Electrically Erasable
Programmable Read Only Memory
(EEPROM)Overdrive mode boosts communicationspeed to 142 kbits per second256–bit scratchpad ensures integrity of data
transferMemory partitioned into 256–bit pages for
packetizing dataReduces control, address, data and power to
a single data pin8–bit family code specifies DS1973
communication requirements to readerReads and writes over a wide voltage rangeof 2.8V to 6.0V from –40°C to +85°C
COMMON iButton FEATURESUnique, 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 alikeMultidrop controller for MicroLANDigital identification and information by
momentary contactChip-based data carrier compactly stores
informationData can be accessed while affixed to objectEconomically communicates to bus master
with a single digital signal at 16.3 kbits per
secondStandard 16 mm diameter and 1–Wire®
protocol ensure compatibility with iButton
familyButton shape is self–aligning with cup–
shaped probesDurable stainless steel case engraved withregistration number withstands harsh
environmentsEasily affixed with self–stick adhesive
backing, latched by its flange, or locked with
a ring pressed onto its rimPresence detector acknowledges when reader
first applies voltageMeets UL#913 (4th Edit.); Intrinsically Safe
Apparatus, Approved under Entity Concept
for use in Class I, Division 1, Group A, B, Cand D Locations (application pending)
ORDERING INFORMATIONDS1973-F3F3 MicroCan
DS1973-F5F5 MicroCan
F3 MICROCANF5 MICROCAN
DS1973
4-kbit EEPROM iButtonTMDATA
GROUND
YYWW REGISTERED RR23
000000FBC52B
DATA
GROUND
c1993
YYWW REGISTERED RR23
000000FBD8B3
17.35
DS1973
EXAMPLES OF ACCESSORIESDS9096P Self–Stick Adhesive Pad
DS9101 Multi–Purpose Clip
DS9093RA Mounting Lock Ring
DS9093A Snap–In Fob
DS9092 iButton Probe
iButton DESCRIPTIONThe DS1973 4-kbit EEPROM iButton is a rugged read/write data carrier that identifies and stores relevant
information about the product or person to which it is attached. This information can be accessed withminimal hardware, for example a single port pin of a micro-controller. The DS1973 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 (23H) plus 4096 bits of EEPROM. The power to program and read the DS1973 is derived
entirely from the 1–Wire communication line. The memory is organized as sixteen pages of 256 bits
each. The 64–bit registration number provides a guaranteed unique identity which allows for absolutetraceability. Data is transferred serially via the 1–Wire protocol which requires only a single data lead and
a ground return. The durable MicroCan package is highly resistant to harsh environments such as dirt,
moisture, and shock. Its compact button–shaped profile is self–aligning with cup–shaped receptacles,
allowing the DS1973 to be used easily by human operators or automatic equipment. Accessories permitthe DS1973 to be mounted on printed circuit boards, plastic key fobs, photo–ID badges, ID bracelets, and
many other objects. Applications include work–in–progress tracking, electronic travelers, access control
and storage of calibration constants.
OVERVIEWThe block diagram in Figure 1 shows the relationships between the major control and memory sections of
the DS1973. The DS1973 has three main data components: 1) 64–bit lasered ROM, 2) 256–bitscratchpad, and 3) 4096–bit EEPROM. The bus master must first provide one of the ROM function
commands before the memory functions become accessible. All data is read and written least significant
bit first.
The DS1973 contains the same memory chip as the DS2433-Z01 (with 10000 write/erase cycles). For afull description of the logical behavior, please refer to the DS2433-Z01 data sheet.
DS1973 BLOCK DIAGRAM Figure 1
:
www.ic-phoenix.com
.
