24AA02UID/24AA025UID 2 2K I C Serial EEPROMs with Unique 32-bit Serial Number Device Selection Table VCC Max. Clock Temp. Unique ID Part Number Cascadable Page Size Range Frequency Ranges Length (1) 24AA02UID 1.7-5.5V 400 kHz INo 8-Byte 32-Bit (1) 24AA025UID 1.7-5.5V 400 kHz I Yes 16-Byte 32-Bit Note 1: 100 kHz for VCC <2.5V Features: Description: Preprogrammed 32-Bit Serial Number: The Microchip Technology Inc. 24AA02UID/ 24AA025UID (24AA02XUID*) is a 2 Kbit Electrically - Unique across all UID-family EEPROMs Erasable PROM with a preprogrammed, 32-bit - Scalable to 48-bit, 64-bit, 128-bit, 256-bit, unique ID. The device is organized as two blocks of and other lengths 128 x 8-bit memory with a 2-wire serial interface. Single Supply with Operation Down to 1.7V Low-voltage design permits operation down to 1.7V, Low-Power CMOS Technology: with maximum standby and active currents of only - Read current 1 mA, max. 1 A and 1 mA, respectively. The 24AA02XUID also has a page write capability for up to eight bytes of - Standby current 1 A, max. 2 data (16 bytes on the 24AA025UID). The 2-Wire Serial Interface, I C Compatible 24AA02XUID is available in the standard 8-pin PDIP, Schmitt Trigger Inputs for Noise Suppression 8-pin SOIC, 5-lead SOT-23, and 6-lead SOT-23 Output Slope Control to Eliminate Ground Bounce packages. 100 kHz and 400 kHz Clock Compatibility Page Write Time 3 ms, typical Package Types (24AA02UID) Self-Timed Erase/Write Cycle SOT-23 PDIP/SOIC Page Write Buffer: 1 8 NC VCC - 8-byte page (24AA02UID) 15 NC SCL 2 7 - 16-byte page (24AA025UID) NC NC 2 Vss ESD Protection >4,000V 3 6 NC SCL 3 4 More than 1 Million Erase/Write Cycles SDA Vcc 4 5 VSS SDA Data Retention >200 Years Factory Programming Available Package Types (24AA025UID) Available Packages: - 8-lead PDIP, 8-lead SOIC, and 5-lead SOT-23 PDIP/SOIC SOT-23 (24AA02UID) 1 8 - 8-lead PDIP, 8-lead SOIC, and 6-lead A0 VCC SCL VCC 1 6 SOT-23 (24AA025UID) 2 7 A1 NC VSS 2 A0 5 RoHS Compliant A2 3 6 SCL 4 Temperature Ranges: 3 SDA A1 4 5 VSS SDA - Industrial (I): -40C to +85C *24AA02XUID is used in this document as a generic part number for the 24AA02UID/24AA025UID devices. 2013 Microchip Technology Inc. DS20005202A-page 124AA02UID/24AA025UID Block Diagram (1) (1) (1) A0 A2 A1 HV Generator I/O Memory Control Control EEPROM Logic Logic XDEC Array SDA SCL Write-Protect VCC Circuitry YDEC VSS Sense Amp. R/W Control Note 1: Pins A0, A1 and A2 are not available on the 24AA02UID. DS20005202A-page 2 2013 Microchip Technology Inc.