DS28E05:1-Wire EEPROM

Provides Low-Cost Identification or Calibration Solution for Sensors and Accessories with Efficient Single-Contact Operation

The DS28E05 is a 112-byte user-programmable EEPROM organized as 7 pages of 16 bytes each. Memory pages can be individually set to write protected or EPROM emulation mode through protection byte settings. Each part has its own guaranteed unique 64-bit ROM identification number (ROM ID) that is factory programmed into the chip. The DS28E05 communicates over Maxim Integrated's single contact 1-Wire® interface at overdrive speed with the ROM ID acting as node address in the case of a multiple-device 1-Wire network.

Key Features
  • Single-Contact 1-Wire Interface
  • 112 Bytes User EEPROM with 1K Write Cycles
  • Programmable Write Protection and OTP EPROM Emulation Modes for User Memory
  • Unique Factory-Programmed 64-Bit ROM ID Number
  • Communicates with Host at Up to 76.9kbps (Overdrive Only)
  • Operating Range: 1.71V to 3.63V, -40°C to +85°C
  • ±8kV HBM ESD Protection (typ) on IO Pin
  • 4-Ball UCSP, 2-Pad SFN, 3-Pin SOT23 and 6-Pin TSOC Packages
DS28E05: Typical Application Circuit
DS28E05: Typical Application Circuit
  • Accessory/PCB Identification
  • Aftermarket Management of Consumables
  • Analog Sensor Calibration
  • Medical Sensor Calibration Data Storage
titleDownload file
DS28E05 Data SheetDS28E05.pdf
Part NumberApplicationsMemory TypeMemory SizeBus TypeVSUPPLY
minmaxSee Notes
DS28E05Medical Consumable ID
PCB ID and Authentication
Peripheral ID and Control
Print Cartridge Authentication
EEPROM112 Bytes1-Wire2.973.63SFN/2
$0.41 @1k
Design kits & evaluation modules
Quality and Environmental Data
Related Products
  • DS28E15:DeepCover Secure Authenticator with 1-Wire SHA-256 and 512-Bit User EEPROM
  • DS2483:Single-Channel 1-Wire Master with Adjustable Timing and Sleep Mode
  • DS2431:1024-Bit 1-Wire EEPROM
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
DS28E05GB+TActiveSFN,;2 pin;17.9 mm²-40°C to +85°CLead Free
DS28E05GB+UActiveSFN,;2 pin;17.9 mm²-40°C to +85°CLead Free
DS28E05P+ActiveTSOC,;6 pin;17.8 mm²-40°C to +85°CLead Free
DS28E05P+TActiveTSOC,;6 pin;17.8 mm²-40°C to +85°CLead Free
DS28E05R+TActiveSOT,;3 pin;8 mm²-40°C to +85°CLead Free
DS28E05R+UActiveSOT,;3 pin;8 mm²-40°C to +85°CLead Free
DS28E05.pdf DS28E05
DS28E05.pdf DS28E05
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