24AA256UID 2 256K I C Serial EEPROM with EUI-48 , EUI-64 and Unique 32-Bit Serial Number Device Selection Table VCC Max. Clock Temp. Page Unique ID Part Number EUI-48 EUI-64 Range Frequency Ranges Size Length (1) 24AA256UID 1.7V-5.5V 400 kHz I 64-byte Yes Yes 32-bit Note 1: 100 kHz for VCC < 2.5V. Features Description Preprogrammed 32-Bit Serial Number: The Microchip Technology Inc. 24AA256UID is a 32K x 8 (256 Kbit) Serial Electrically Erasable PROM - Unique across all UID-family EEPROMs with preprogrammed EUI-48 and EUI-64 node - Scalable to 48-bit, 64-bit, 128-bit, 256-bit, addresses and a 32-bit Unique ID, capable of operation and other lengths across a broad voltage range (1.7V to 5.5V). This Preprogrammed Globally Unique, 48-bit or 64-bit device also has a page write capability of up to 64 bytes Node Address: of data. This device is available in the standard 8-pin - Compatible with EUI-48 and EUI-64 plastic DIP, SOIC and TSSOP packages. Codes Stored in Permanently Write-Protected Block Diagram Upper 1/8th of EEPROM Array Single Supply with Operation Down to 1.7V A0 A1A2 HV Generator Low-Power CMOS Technology: - Active current 400 A, typical - Standby current 100 nA, typical I/O Memory EEPROM 2 Control Control XDEC 2-Wire Serial Interface, I C Compatible Array Logic Logic Cascadable up to Eight Devices Page Latches Schmitt Trigger Inputs for Noise Suppression Output Slope Control to Eliminate Ground Bounce I/O SCL 100 kHz and 400 kHz Clock Compatibility YDEC Page Write Time 5 ms Maximum SDA Self-Timed Erase/Write Cycle VCC 64-Byte Page Write Buffer VSS Sense Amp. ESD Protection >4000V R/W Control More than One Million Erase/Write Cycles Data Retention >200 years Package Types Packages Include 8-lead PDIP, SOIC and TSSOP PDIP SOIC/TSSOP RoHS Compliant Temperature Ranges: A0 1 8 VCC 1 8 A0 VCC - Industrial (I): -40C to +85C A1 2 7 NC 2 7 A1 NC A2 3 6 SCL 3 6 A2 SCL VSS 4 5 SDA 4 5 VSS SDA 2013-2018 Microchip Technology Inc. DS20005215D-page 1 24AA256UID 24AA256UID24AA256UID 1.0 ELECTRICAL CHARACTERISTICS () Absolute Maximum Ratings VCC.............................................................................................................................................................................6.5V All inputs and outputs w.r.t. VSS ..........................................................................................................-0.6V to VCC +1.0V Storage temperature ...............................................................................................................................-65C to +150C Ambient temperature with power applied..................................................................................................-40C to +85C ESD protection on all pins........................................................................................................................................ 4kV NOTICE: Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. TABLE 1-1: DC CHARACTERISTICS Electrical Characteristics: DC CHARACTERISTICS Industrial (I): VCC = +1.7V to 5.5V TA = -40C to +85C Param. Symbol Characteristic Min. Max. Units Conditions No. D1 VIH High-Level Input Voltage 0.7 VCC V D2 VIL Low-Level Input Voltage 0.3 VCC VVCC 2.5V 0.2 VCC VVCC<2.5V D3 VHYS Hysteresis of Schmitt 0.05 VCC VVCC 2.5V (Note) Trigger Inputs (SDA, SCL pins) D4 VOL Low-Level Output Voltage 0.40 V IOL = 3.0 mA VCC = 4.5V 0.40 VIOL = 2.1 mA VCC = 2.5V D5 ILI Input Leakage Current 1 A VIN = VSS or VCC D6 ILO Output Leakage Current 1 A VOUT = VSS or VCC D7 CIN, Pin Capacitance 10 pFVCC = 5.0V (Note) COUT (all inputs/outputs) TA = 25C, FCLK = 1 MHz D8 ICCREAD Operating Current 400 A VCC = 5.5V, SCL = 400 kHz ICCWRITE 3 mAVCC = 5.5V D9 ICCS Standby Current 1 A TA = -40C to +85C SCL = SDA = VCC = 5.5V A0, A1, A2 = VSS Note: This parameter is periodically sampled and not 100% tested. 2013-2018 Microchip Technology Inc. DS20005215D-page 2