DS28E05

DS28E05 1-Wire EEPROM General Description 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. Applications ● Accessory/PCB Identification ● Medical Sensor Calibration Data Storage ● Analog Sensor Calibration ● Aftermarket Management of Consumables 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 Ordering Information appears at end of data sheet. Typical Application Circuit VCC 100kΩ Q1 VCC 1kΩ PIOX µC *PMV65XP PIOY GND BIDIRECTIONAL OPEN DRAIN PORT RPUP DS28E05 IO GND *NOTE: OPTIONAL Q1 LOW-IMPEDANCE BYPASS OR EQUALLY DRIVE LOGIC ‘1’ WITH PIOY 1-Wire is a registered trademark of Maxim Integrated Products, Inc. 19-6568; Rev 3; 2/1...