DS28E05 1-Wire EEPROM General Description Features The DS28E05 is a 112-byte user-programmable EEPROM Single-Contact 1-Wire Interface organized as 7 pages of 16 bytes each. Memory pages 112 Bytes User EEPROM with 1K Write Cycles can be individually set to write protected or EPROM Programmable Write Protection and OTP EPROM emulation mode through protection byte settings. Each Emulation Modes for User Memory part has its own guaranteed unique 64-bit ROM identi- Uniq ue Factory-Programmed 64-Bit ROM ID Number fication number (ROM ID) that is factory programmed into the chip. The DS28E05 communicates over Maxim Communicates with Host at Up to 76.9kbps Integrateds single contact 1-Wire interface at overdrive (Overdrive Only) speed with the ROM ID acting as node address in the Operating Range: 1.71V to 3.63V, -40C to +85C case of a multiple-device 1-Wire network. 8kV HBM ESD Protection (typ) on IO Pin Applications 4-Ball UCSP, 2-Pad SFN, 3-Pin SOT23 and 6-Pin Accessory/PCB Identificatio n TSOC Packages Medical Sensor Calibration Data Storage Analog Sensor Calibration Ordering Information appears at end of data sheet. Aftermarket Management o f Consumables Typical Application Circuit VCC 100k R PUP Q1 V 1k CC PIOX C *PMV65XP DS28E05 BIDIRECTIONAL PIOY IO OPEN DRAIN PORT GND 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 2 1/17DS28E05 1-Wire EEPROM Absolute Maximum Ratings IO Voltage Range to GND .................................... -0.5V to 3.63V Storage Temperature Range ............................ -55C to +125C IO Sink Current................................................................. 20mA Lead Temperatur e (soldering, 10s) ................................. +300C Operating Temperature Range .......................... -40C to +85C Soldering Temperature (reflow) ...................................... +260C Junction Temperature ...................................................... +150C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (T = -40C to +85C, unless otherwise noted.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS IO PIN: GENERAL DATA 1-Wire Pullup Voltage V (Note 2) 1.71 3.63 V PUP V = 2.75V to 3.63V (Note 3) 300 1500 PUP 1-Wire Pullup Resistance R PUP V = 1.71V to 2.75V (Note 3) 300 750 PUP Input Capacitance C (Notes 4, 5) 1500 pF IO IO pin at V 5 20 PUP Input Load Current I A L IO pin at V = 1.8V+5% 2 8 PUP 0.65 x High-to-Low Switching Threshold V (Notes 6, 7) V TL V PUP V = 2.75V to 3.63V (Notes 2, 8) 0.5 V PUP Input Low Voltage V IL V = 1.71V to 2.75V (Notes 2, 8) 0.3 PUP 0.75 x Low-to-High Switching Threshold V (Notes 6, 9) V TH V PUP V = 2.75V to 3.63V (Notes 6, 10) 0.3 V PUP Switching Hysteresis V HY V = 1.71V to 2.75V (Notes 6, 10) 0.17 PUP V = 1.89V to 3.63V, I = 4mA (Note 11) 0.4 V PUP OL Output Low Voltage V OL V = 1.71V to 1.89V, I = 2mA (Note 11) 0.4 PUP OL Recovery Time t (Notes 2, 12) 5 s REC Time Slot Duration t (Notes 2, 13) 13 s SLOT IO PIN: 1-Wire RESET, PRESENCE DETECT CYCLE Reset Low Time t (Note 2) 48 80 s RSTL Reset High Time t (Note 14) 48 s RSTH Presence Detect Sample Time t (Notes 2, 15) 8 10 s MSP IO PIN: 1-Wire WRITE Write-Zero Low Time t (Notes 2, 16) 8 16 s W0L Write-One Low Time t (Notes 2, 16) 0.25 2 s W1L IO PIN: 1-Wire READ Read Low Time t (Notes 2, 17) 0.25 2 - s RL Read Sample Time t (Notes 2, 17) t + 2 s MSR RL Maxim Integrated 2 www.maximintegrated.com