25AA02UID 2K SPI Bus Serial EEPROM with Unique 32-Bit Serial Number Device Selection Table Part Number VCC Range Page Size Temp. Ranges Packages Unique ID Length 25AA02UID 1.8-5.5V 16 Bytes I SN, OT 32-Bit Features: Description: Preprogrammed 32-Bit Serial Number: The Microchip Technology Inc. 25AA02UID is a 2 Kbit Serial Electrically Erasable Programmable Read-Only - Unique across all UID-family EEPROMs Memory (EEPROM) with a preprogrammed, 32-bit - Scalable to 48-bit, 64-bit, 128-bit, 256-bit, unique ID. The memory is accessed via a simple Serial and other lengths Peripheral Interface (SPI) compatible serial bus. The 10 MHz max. Clock Frequency bus signals required are a clock input (SCK) plus sep- Low-Power CMOS Technology: arate data in (SI) and data out (SO) lines. Access to the - Max. write current: 5 mA at 5.5V device is controlled through a Chip Select (CS) input. - Read current: 5 mA at 5.5V, 10 MHz Communication to the device can be paused via the - Standby current: 1 A at 2.5V hold pin (HOLD). While the device is paused, transi- 256 x 8-Bit Organization tions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority Write Page mode (up to 16 bytes) interrupts. Sequential Read The 25AA02UID is available in the standard 8-lead Self-Timed Erase and Write Cycles (5 ms max.) SOIC and 6-lead SOT-23 packages. Block Write Protection: - Protect none, 1/4, 1/2 or all of array Pin Function Table Built-in Write Protection: Name Function - Power-on/off data protection circuitry CS Chip Select Input - Write enable latch - Write-protect pin SO Serial Data Output High Reliability: WP Write-Protect - Endurance: 1,000,000 erase/write cycles VSS Ground - Data retention: >200 years SI Serial Data Input - ESD protection: >4000V SCK Serial Clock Input Temperature Ranges Supported: - Industrial (I): -40 Cto +85 C HOLD Hold Input RoHS Compliant VCC Supply Voltage Package Types (not to scale) SOT-23 SOIC (OT) (SN) CS VCC 1 8 1 6 SCK VDD SO 2 7 HOLD 2 5 VSS CS WP 3 6 SCK 34 SI SO VSS 4 5 SI 2013 Microchip Technology Inc. DS20005205A-page 125AA02UID 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 under bias.................................................................................................................-40C to 85C ESD protection on all pins..........................................................................................................................................4 kV 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 those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for an extended period of time may affect device reliability. TABLE 1-1: DC CHARACTERISTICS DC CHARACTERISTICS Industrial (I): TA = -40C to +85C VCC = 1.8V to 5.5V Param. Sym. Characteristic Min. Max. Units Test Conditions No. IH1 High-level Input 0.7 VCC VCC +1 V D001 V voltage D002 VIL1 Low-level Input -0.3 0.3 VCC VVCC 2.7V (Note 1) Voltage D003 VIL2 -0.3 0.2 VCC VVCC < 2.7V (Note 1) D004 VOL Low-level Output 0.4 VIOL = 2.1 mA Voltage D005 VOL 0.2 VIOL = 1.0 mA, VCC < 2.5V D006 VOH High-level Output VCC -0.5 V IOH = -400 A Voltage D007 ILI Input Leakage 1 ACS = VCC, VIN = VSS or VCC Current D008 ILO Output Leakage 1 ACS = VCC, VOUT = VSS or VCC Current D009 CINT Internal Capacitance A = 25C, CLK = 1.0 MHz, 7 pFT (all inputs and VCC = 5.0V (Note 1) outputs) D010 ICC Read 5 mA VCC = 5.5V FCLK = 10.0 MHz SO = Open Operating Current 2.5 mA VCC = 2.5V FCLK = 5.0 MHz SO = Open D011 ICC Write 5 mA VCC = 5.5V 3 mA VCC = 2.5V D012 ICCS Standby Current 1 ACS = VCC = 2.5V, Inputs tied to VCC or VSS, TA = +85C Note: This parameter is periodically sampled and not 100% tested. DS20005205A-page 2 2013 Microchip Technology Inc.