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Maxim Integrated Products - 4Kb 1-Wire EEPROM

Numéro de référence DS24B33
Description 4Kb 1-Wire EEPROM
Fabricant Maxim Integrated Products 
Logo Maxim Integrated Products 





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DS24B33 fiche technique
AVAILABLE
DS24B33
1-Wire 4Kb EEPROM
General Description
The DS24B33 is a 4096-bit, 1-Wire® EEPROM orga-
nized as 16 memory pages of 256 bits each. Data is
written to a 32-byte scratchpad, verified, and then
copied to the EEPROM memory. The DS24B33 commu-
nicates over a single-conductor 1-Wire bus. The com-
munication follows the standard 1-Wire protocol. Each
device has its own unalterable and unique 64-bit regis-
tration number that is factory programmed into the chip.
The registration number is used to address the device
in a multidrop 1-Wire net environment. The DS24B33 is
software compatible to the DS2433.
Applications
Storage of Calibration Constants
Board Identification
Storage of Product Revision Status
Typical Operating Circuit
VCC
µC
RPUP
IO
DS24B33
Functional Diagrams
GND
Features
o 4096 Bits of Nonvolatile EEPROM Partitioned Into
Sixteen 256-Bit Pages
o Read and Write Access is Highly Backward-
Compatible to the DS2433
o 256-Bit Scratchpad with Strict Read/Write
Protocols Ensures Integrity of Data Transfer
o Unique, Factory-Programmed, 64-Bit Registration
Number Ensures Error-Free Device Selection and
Absolute Part Identity
o Switchpoint Hysteresis to Optimize Performance
in the Presence of Noise
o Communicates to Host at 15.4kbps or 125kbps
Using 1-Wire Protocol
o Low-Cost Through-Hole and SMD Packages
o Operating Range: +2.8V to +5.25V, -40°C to +85°C
o IEC 1000-4-2 Level 4 ESD Protection (±8kV
Contact, ±15kV Air, Typical) for IO Pin
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
DS24B33+
-40°C to +85°C TO-92
DS24B33+T&R -40°C to +85°C TO-92
DS24B33G+T&R -40°C to +85°C 2 SFN (2.5k pcs)
DS24B33Q+T&R -40°C to +85°C 6 TDFN-EP* (2.5k pcs)
DS24B33S+
-40°C to +85°C 8 SO (208 mils)
DS24B33S+T&R -40°C to +85°C 8 SO (208 mils)
Note: The leads of TO-92 packages on tape and reel are formed
to approximately 100-mil (2.54mm) spacing. For details, refer to
the package outline drawing.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*EP = Exposed pad.
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
U1-CWSirPeisisaatraedgeismtearrekdotfraMdaexmimarInktoefgMraatexdimPrInotdeugcrtast,eIdncP.roducts, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5759; Rev 3; 5/12

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