24AA02E48/24AA025E48/ 24AA02E64/24AA025E64 2K I2C™ Serial EEPROMs with EUI-48™ or EUI-64™ Node Identity Device Selection Table VCC Range Max. Clock Frequency Temp. Ranges Cascadable Page Size Node Address 1.7-5.5V 400 kHz(1) I, E No 8-Byte EUI-48™ 24AA025E48 1.7-5.5V 400 kHz (1) I, E Yes 16-Byte EUI-48™ 24AA02E64 1.7-5.5V 400 kHz(1) I, E No 8-Byte EUI-64™ 1.7-5.5V (1) I, E Yes 16-Byte EUI-64™ Part Number 24AA02E48 24AA025E64 Note 1: 400 kHz 100 kHz for VCC <2.5V Features Description • Pre-programmed Globally Unique, 48-bit or 64-bit Node Address • Compatible with EUI-48™ and EUI-64™ • Single Supply with Operation Down to 1.7V • Low-Power CMOS Technology: - Read current 1 mA, max. - Standby current: 1 µA, max (I-temp) 5 µA, max (E-temp) • 2-Wire Serial Interface, I2C™ Compatible • Schmitt Trigger Inputs for Noise Suppression • Output Slope Control to Eliminate Ground Bounce • 100 kHz and 400 kHz Clock Compatibility • Page Write Time 3 ms, typical • Self-Timed Erase/Write Cycle • Page Write Buffer: - 8-byte page (24AA02E48/24AA02E64) - 16-byte page (24AA025E48/24AA025E64) • ESD Protection >4,000V • More than 1 Million Erase/Write Cycles • Data Retention >200 Years • Factory Programming Available • Available Packages: - 8-lead SOIC and 5-lead SOT-23 (24AA02E48/24AA02E64) - 8-lead SOIC and 6-lead SOT-23 (24AA025E48/24AA025E64) • RoHS Compliant • Available for Extended Temperature Ranges: - Industrial (I): -40°C to +85°C - Automotive (E): -40°C to +125°C The Microchip Technology Inc. 24AA02E48/ 24AA025E48/24AA02E64/24AA025E64 (24AA02XEXX*) is a 2 Kbit Electrically Erasable PROM. The device is organized as two blocks of 128 x 8-bit memory with a 2-wire serial interface. Low-voltage design permits operation down to 1.7V, with maximum standby currents of only 1 µA for I-Temp and 5 µA for E-Temp, as well as a maximum active current of 1 mA. The 24AA02XEXX also has a page write capability for up to eight bytes of data (16 bytes on the 24AA025E48/ 24AA025E64). The 24AA02XEXX is available in the standard 8-pin SOIC, 5-lead SOT-23, and 6-lead SOT-23 packages. Packages (24AA02E48/24AA02E64) SOT-23 SCL 1 Vss 2 SDA 3 SOIC NC 5 4 Vcc NC 1 8 VCC NC 2 7 NC NC 3 6 SCL VSS 4 5 SDA Packages (24AA025E48/24AA025E64) SOT-23 SOIC SCL 1 6 VCC VSS 2 5 A0 SDA 3 4 A1 A0 1 8 VCC A1 2 7 NC A2 3 6 SCL VSS 4 5 SDA *24AA02XEXX is used in this document as a generic part number for the 24AA02E48/24AA025E48/ 24AA02E64/24AA025E64 devices. 2008-2014 Microchip Technology Inc. DS20002124F-page 1 24AA02E48/24AA025E48/24AA02E64/24AA025E64 Block Diagram A0(1) A1(1) A2(1) HV Generator I/O Control Logic Memory Control Logic XDEC EEPROM Array SDA SCL VCC VSS Write-Protect Circuitry YDEC Sense Amp. R/W Control Note 1: Pins A0, A1 and A2 are not available on the 24AA02E48/24AA02E64. DS20002124F-page 2 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings (†) VCC.............................................................................................................................................................................6.5V All inputs and outputs w.r.t. VSS ..........................................................................................................-0.3V to VCC +1.0V Storage temperature ...............................................................................................................................-65°C to +150°C Ambient temperature with power applied................................................................................................-40°C to +125°C 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 extended periods may affect device reliability. TABLE 1-1: DC CHARACTERISTICS DC CHARACTERISTICS Param. No. Sym. Characteristic Industrial (I): Automotive (E): TA = -40°C to +85°C, VCC = +1.7V to +5.5V TA = -40°C to +125°C, VCC = +1.7V to +5.5V Min. Typ. Max. Units — — — Conditions — — SCL, SDA, A0, A1, and A2 pins — D1 VIH High-level Input Voltage 0.7 VCC — — V — D2 VIL Low-level Input Voltage — — 0.3 VCC V — D3 VHYS Hysteresis of Schmitt Trigger inputs 0.05 VCC — — V (Note) D4 VOL Low-level Output Voltage — — 0.40 V IOL = 3.0 mA, VCC = 2.5V D5 ILI Input Leakage Current — — ±1 µA VIN = VSS or VCC D6 ILO Output Leakage Current — — ±1 µA VOUT = VSS or VCC D7 CIN, COUT Pin Capacitance (all inputs/outputs) — — 10 pF VCC = 5.0V (Note) TA = 25°C, FCLK = 1 MHz D8 ICC write Operating Current — 0.1 3 mA VCC = 5.5V, SCL = 400 kHz D9 ICC read — 0.05 1 mA — D10 ICCS — 0.01 1 µA Industrial (I) SDA = SCL = VCC — 0.01 5 µA Automotive (E) SDA = SCL = VCC Note: Standby Current This parameter is periodically sampled and not 100% tested. 2008-2014 Microchip Technology Inc. DS20002124F-page 3 24AA02E48/24AA025E48/24AA02E64/24AA025E64 TABLE 1-2: AC CHARACTERISTICS AC CHARACTERISTICS Param. No. Sym. Characteristic Industrial (I): Automotive (E): TA = -40°C to +85°C, VCC = +1.7V to +5.5V TA = -40°C to +125°C, VCC = +1.7V to +5.5V Min. Typ. Max. Units Conditions 1 FCLK Clock frequency — — — — 400 100 kHz 2.5V VCC 5.5V 1.7V VCC 2.5V 2 THIGH Clock high time 600 4000 — — — — ns 2.5V VCC 5.5V 1.7V VCC 2.5V 3 TLOW Clock low time 1300 4700 — — — — ns 2.5V VCC 5.5V 1.7V VCC 2.5V 4 TR SDA and SCL rise time (Note 1) — — — — 300 1000 ns 2.5V VCC 5.5V (Note 1) 1.7V VCC 2.5V (Note 1) 5 TF SDA and SCL fall time — — — 300 ns (Note 1) 6 THD:STA Start condition hold time 600 4000 — — — — ns 2.5V VCC 5.5V 1.7V VCC 2.5V 7 TSU:STA Start condition setup time 600 4700 — — — — ns 2.5V VCC 5.5V 1.7V VCC 2.5V 8 THD:DAT Data input hold time 0 — — — ns (Note 2) 9 TSU:DAT Data input setup time 100 250 — — — — ns 2.5V VCC 5.5V 1.7V VCC 2.5V 10 TSU:STO Stop condition setup time 600 4000 — — — — ns 2.5V VCC 5.5V 1.7V VCC 2.5V 11 TAA Output valid from clock (Note 2) — — — — 900 3500 ns 2.5V VCC 5.5V 1.7V VCC 2.5V 12 TBUF Bus free time: Time the bus must be free before a new transmission can start 1300 4700 — — — — ns 2.5V VCC 5.5V 1.7V VCC 2.5V 13 TOF Output fall time from VIH minimum to VIL maximum — — — — 250 250 ns 2.5V VCC 5.5V 1.7V VCC 2.5V 14 TSP Input filter spike suppression (SDA and SCL pins) — — 50 ns (Notes 1 and 3) 15 TWC Write cycle time (byte or page) — — 5 ms — 16 — Endurance 1M — — Note 1: 2: 3: 4: cycles 25°C (Note 4) Not 100% tested. CB = total capacitance of one bus line in pF. As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions. The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs which provide improved noise spike suppression. This eliminates the need for a TI specification for standard operation. This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ Model which can be obtained from Microchip’s web site at www.microchip.com. DS20002124F-page 4 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 FIGURE 1-1: BUS TIMING DATA 5 4 2 3 SCL 7 SDA IN 8 10 9 6 14 12 11 SDA OUT FIGURE 1-2: BUS TIMING START/STOP D3 SCL 6 7 10 SDA Start 2008-2014 Microchip Technology Inc. Stop DS20002124F-page 5 24AA02E48/24AA025E48/24AA02E64/24AA025E64 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: Name SOIC 5-Pin SOT-23 6-Pin SOT-23 A0 1 — 5 Chip Address Input(1) A1 2 — 4 Chip Address Input(1) A2 3 — — Chip Address Input(1) VSS 4 2 2 Ground Description SDA 5 3 3 Serial Address/Data I/O SCL 6 1 1 Serial Clock NC 7 5 — Not Connected VCC 8 4 6 +1.7V to 5.5V Power Supply Note 1: 2.1 PIN FUNCTION TABLE Chip address inputs A0, A1 and A2 are not connected on the 24AA02E48/24AA02E64. Serial Address/Data Input/Output (SDA) SDA is a bidirectional pin used to transfer addresses and data into and out of the device. Since it is an opendrain terminal, the SDA bus requires a pull-up resistor to VCC (typical 10 k for 100 kHz, 2 k for 400 kHz). For normal data transfer, SDA is allowed to change only during SCL low. Changes during SCL high are reserved for indicating Start and Stop conditions. 2.2 Serial Clock (SCL) The SCL input is used to synchronize the data transfer to and from the device. 2.3 A0, A1, A2 Chip Address Inputs The A0, A1 and A2 pins are not used by the 24AA02E48/24AA02E64. They may be left floating or tied to either VSS or VCC. For the 24AA025E48/24AA025E64, the levels on the A0, A1 and A2 inputs are compared with the corresponding bits in the slave address. The chip is selected if the compare is true. For the 6-lead SOT-23 package, pin A2 is not connected and its corresponding bit in the slave address should always be set to ‘0’. Up to eight 24AA025E48/24AA025E64 devices (four for the SOT-23 package) may be connected to the same bus by using different Chip Select bit combinations. These inputs must be connected to either VSS or VCC. DS20002124F-page 6 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 3.0 FUNCTIONAL DESCRIPTION The 24AA02XEXX supports a bidirectional, 2-wire bus and data transmission protocol. A device that sends data onto the bus is defined as transmitter, while a device receiving data is defined as a receiver. The bus has to be controlled by a master device which generates the Serial Clock (SCL), controls the bus access and generates the Start and Stop conditions, while the 24AA02XEXX works as slave. Both master and slave can operate as transmitter or receiver, but the master device determines which mode is activated. 4.0 BUS CHARACTERISTICS The following bus protocol has been defined: • Data transfer may be initiated only when the bus is not busy. • During data transfer, the data line must remain stable whenever the clock line is high. Changes in the data line while the clock line is high will be interpreted as a Start or Stop condition. Accordingly, the following bus conditions have been defined (Figure 4-1). 4.1 Start Data Transfer (B) A high-to-low transition of the SDA line while the clock (SCL) is high determines a Start condition. All commands must be preceded by a Start condition. 4.3 Stop Data Transfer (C) A low-to-high transition of the SDA line while the clock (SCL) is high determines a Stop condition. All operations must be ended with a Stop condition. FIGURE 4-1: (A) Data Valid (D) The state of the data line represents valid data when, after a Start condition, the data line is stable for the duration of the high period of the clock signal. The data on the line must be changed during the low period of the clock signal. There is one clock pulse per bit of data. Each data transfer is initiated with a Start condition and terminated with a Stop condition. The number of data bytes transferred between Start and Stop conditions is determined by the master device and is, theoretically, unlimited (although only the last sixteen will be stored when doing a write operation). When an overwrite does occur, it will replace data in a first-in first-out (FIFO) fashion. 4.5 Acknowledge Each receiving device, when addressed, is obliged to generate an acknowledge after the reception of each byte. The master device must generate an extra clock pulse which is associated with this Acknowledge bit. Note: Bus Not Busy (A) Both data and clock lines remain high. 4.2 4.4 The 24AA02XEXX does not generate any Acknowledge bits if an internal programming cycle is in progress. The device that acknowledges has to pull down the SDA line during the acknowledge clock pulse in such a way that the SDA line is stable-low during the high period of the acknowledge related clock pulse. Of course, setup and hold times must be taken into account. During reads, a master must signal an end of data to the slave by not generating an Acknowledge bit on the last byte that has been clocked out of the slave. In this case, the slave (24AA02XEXX) will leave the data line high to enable the master to generate the Stop condition. DATA TRANSFER SEQUENCE ON THE SERIAL BUS (B) (D) Start Condition Address or Acknowledge Valid (D) (C) (A) SCL SDA 2008-2014 Microchip Technology Inc. Data Allowed to Change Stop Condition DS20002124F-page 7 24AA02E48/24AA025E48/24AA02E64/24AA025E64 5.0 DEVICE ADDRESSING FIGURE 5-1: A control byte is the first byte received following the Start condition from the master device. The control byte consists of a four-bit control code. For the 24AA02XEXX, this is set as ‘1010’ binary for read and write operations. For the 24AA02E48/24AA02E64 the next three bits of the control byte are “don’t cares”. For the 24AA025E48/24AA025E64, the next three bits of the control byte are the Chip Select bits (A2, A1, A0). The Chip Select bits allow the use of up to eight 24AA025E48/24AA025E64 devices on the same bus and are used to select which device is accessed. The Chip Select bits in the control byte must correspond to the logic levels on the corresponding A2, A1 and A0 pins for the device to respond. These bits are in effect the three Most Significant bits of the word address. For the 6-pin SOT-23 package, the A2 address pin is not available. During device addressing, the A2 Chip Select bit should be set to ‘0’. The last bit of the control byte defines the operation to be performed. When set to ‘1’, a read operation is selected. When set to ‘0’, a write operation is selected. Following the Start condition, the 24AA02XEXX monitors the SDA bus, checking the device type identifier being transmitted and, upon a ‘1010’ code, the slave device outputs an Acknowledge signal on the SDA line. Depending on the state of the R/W bit, the 24AA02XEXX will select a read or write operation. Operation Control Code Chip Select R/W Read 1010 Chip Address 1 Write 1010 Chip Address 0 FIGURE 5-2: CONTROL BYTE ALLOCATION Read/Write Bit Chip Select Bits Control Code S 1 0 1 0 A2* A1* A0* R/W ACK Slave Address Acknowledge Bit Start Bit Note: 5.1 * Bits A0, A1 and A2 are “don’t cares” for the 24AA02E48/24AA02E64. Contiguous Addressing Across Multiple Devices The Chip Select bits A2, A1 and A0 can be used to expand the contiguous address space for up to 16K bits by adding up to eight 24AA025E48/24AA025E64 devices on the same bus. In this case, software can use A0 of the control byte as address bit A8, A1 as address bit A9 and A2 as address bit A10. It is not possible to sequentially read across device boundaries. For the SOT-23 package, up to four 24AA025E48/ 24AA025E64 devices can be added for up to 8K bits of address space. In this case, software can us A0 of the control byte as address bit A8, and A1 as address bit A9. It is not possible to sequentially read across device boundaries. ADDRESS SEQUENCE BIT ASSIGNMENTS Control Byte 1 0 1 Control Code Note: DS20002124F-page 8 0 A2* A1* A0* R/W Address Low Byte A 7 • • • • • • A 0 Chip Select bits * Bits A0, A1 and A2 are “don’t cares” for the 24AA02E48/24AA02E64. 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 6.0 WRITE OPERATION 6.1 Byte Write 24AA025E64) of the word address remain constant. If the master should transmit more than eight words (16 for the 24AA025E48/24AA025E64) prior to generating the Stop condition, the address counter will roll over and the previously received data will be overwritten. As with the byte write operation, once the Stop condition is received an internal write cycle will begin (Figure 6-2). Following the Start condition from the master, the device code (4 bits), the chip address (3 bits) and the R/W bit which is a logic-low, is placed onto the bus by the master transmitter. This indicates to the addressed slave receiver that a byte with a word address will follow once it has generated an Acknowledge bit during the ninth clock cycle. Therefore, the next byte transmitted by the master is the word address and will be written into the Address Pointer of the 24AA02XEXX. After receiving another Acknowledge signal from the 24AA02XEXX, the master device will transmit the data word to be written into the addressed memory location. The 24AA02XEXX acknowledges again and the master generates a Stop condition. This initiates the internal write cycle and, during this time, the 24AA02XEXX will not generate Acknowledge signals (Figure 6-1). 6.2 Note: Page Write The write-control byte, word address and the first data byte are transmitted to the 24AA02XEXX in the same way as in a byte write. However, instead of generating a Stop condition, the master transmits up to eight data bytes to the 24AA02XEXX, which are temporarily stored in the on-chip page buffer and will be written into memory once the master has transmitted a Stop condition. Upon receipt of each word, the three lower-order Address Pointer bits (four for the 24AA025E48/ 24AA025E64) are internally incremented by ‘1’. The higher-order five bits (four for the 24AA025E48/ FIGURE 6-1: Bus Activity Master SDA Line S Control Byte 1 0 1 The remaining half of the array (00h-7Fh) can be written to and read from normally. Word Address Chip Select Bits S T O P Data P A C K A C K A C K * Bits A0, A1 and A2 are “don’t cares” for the 24AA02E48/24AA02E64. FIGURE 6-2: PAGE WRITE Bus Activity Master S T A R T SDA Line S 1 0 1 0 A2 A1 A0 0 Note: The upper half of the array (80h-FFh) is permanently write-protected. Write operations to this address range are inhibited. Read operations are not affected. 0 A2* A1*A0* 0 Bus Activity Bus Activity Write Protection BYTE WRITE S T A R T Note: 6.3 Page write operations are limited to writing bytes within a single physical page regardless of the number of bytes actually being written. Physical page boundaries start at addresses that are integer multiples of the page buffer size (or ‘page size’) and end at addresses that are integer multiples of [page size – 1]. If a page write command attempts to write across a physical page boundary, the result is that the data wraps around to the beginning of the current page (overwriting data previously stored there), instead of being written to the next page, as might be expected. It is therefore necessary for the application software to prevent page write operations that would attempt to cross a page boundary. Control Byte Word Address (n) Data (n) S T O P Data (n + 7) Data (n + 1) * * * P A C K A C K Chip Select Bits * Bits A0, A1 and A2 are “don’t cares” for the 24AA02E48/24AA02E64. 2008-2014 Microchip Technology Inc. A C K A C K A C K DS20002124F-page 9 24AA02E48/24AA025E48/24AA02E64/24AA025E64 7.0 ACKNOWLEDGE POLLING Since the device will not acknowledge during a write cycle, this can be used to determine when the cycle is complete (this feature can be used to maximize bus throughput). Once the Stop condition for a write command has been issued from the master, the device initiates the internally-timed write cycle and ACK polling can then be initiated immediately. This involves the master sending a Start condition followed by the control byte for a write command (R/W = 0). If the device is still busy with the write cycle, no ACK will be returned. If the cycle is complete, the device will return the ACK and the master can then proceed with the next read or write command. See Figure 7-1 for a flow diagram of this operation. FIGURE 7-1: ACKNOWLEDGE POLLING FLOW Send Write Command Send Stop Condition to Initiate Write Cycle Send Start Send Control Byte with R/W = 0 Did Device Acknowledge (ACK = 0)? No Yes Next Operation DS20002124F-page 10 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 8.0 READ OPERATION 8.3 Sequential Read Read operations are initiated in the same way as write operations, with the exception that the R/W bit of the slave address is set to ‘1’. There are three basic types of read operations: current address read, random read and sequential read. Sequential reads are initiated in the same way as a random read, except that once the 24AA02XEXX transmits the first data byte, the master issues an acknowledge as opposed to a Stop condition in a random read. This directs the 24AA02XEXX to transmit the next sequentially-addressed 8-bit word (Figure 8-3). 8.1 To provide sequential reads, the 24AA02XEXX contains an internal Address Pointer that is incremented by one upon completion of each operation. This Address Pointer allows the entire memory contents to be serially read during one operation. Current Address Read The 24AA02XEXX contains an address counter that maintains the address of the last word accessed, internally incremented by ‘1’. Therefore, if the previous access (either a read or write operation) was to address n, the next current address read operation would access data from address n + 1. Upon receipt of the slave address with R/W bit set to ‘1’, the 24AA02XEXX issues an acknowledge and transmits the 8-bit data word. The master will not acknowledge the transfer, but does generate a Stop condition, and the 24AA02XEXX discontinues transmission (Figure 8-1). 8.2 8.4 Noise Protection The 24AA02XEXX employs a VCC threshold detector circuit which disables the internal erase/write logic if the VCC is below 1.5V at nominal conditions. The SCL and SDA inputs have Schmitt Trigger and filter circuits which suppress noise spikes to assure proper device operation, even on a noisy bus. Random Read Random read operations allow the master to access any memory location in a random manner. To perform this type of read operation, the word address must first be set. This is accomplished by sending the word address to the 24AA02XEXX as part of a write operation. Once the word address is sent, the master generates a Start condition following the acknowledge. This terminates the write operation, but not before the internal Address Pointer is set. The master then issues the control byte again, but with the R/W bit set to a ‘1’. The 24AA02XEXX will then issue an acknowledge and transmit the 8-bit data word. The master will not acknowledge the transfer, but does generate a Stop condition, and the 24AA02XEXX will discontinue transmission (Figure 8-2). FIGURE 8-1: CURRENT ADDRESS READ Bus Activity Master S T A R T SDA Line S 1 Bus Activity Note: Control Byte 0 1 S T O P Data (n) 0 A2* A1*A0* 1 Chip Select Bits P A C K N o A C K * Bits A0, A1 and A2 are “don’t cares” for the 24AA02E48/24AA02E64. 2008-2014 Microchip Technology Inc. DS20002124F-page 11 24AA02E48/24AA025E48/24AA02E64/24AA025E64 FIGURE 8-2: RANDOM READ Bus Activity Master S T A R T S T A R T Word Address (n) Control Byte * * * Chip Select Bits Bus Activity Note: FIGURE 8-3: Bus Activity Master SDA Line Bus Activity S T O P Data (n) * ** S 1 0 1 0 A2A1A0 0 SDA Line Control Byte S 1 0 1 0 A2A1A0 1 A C K A C K Chip Select Bits P A C K N o A C K * Bits A0, A1 and A2 are “don’t cares” for the 24AA02E48/24AA02E64. SEQUENTIAL READ Control Byte Data (n) Data (n + 1) Data (n + 2) S T O P Data (n + x) P 1 A C K A C K A C K A C K N o A C K DS20002124F-page 12 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 9.0 PRE-PROGRAMMED EUI-48™ OR EUI-64™ NODE ADDRESS The 24AA02XEXX is programmed at the factory with a globally unique node address stored in the upper half of the array and permanently write-protected. The remaining 1,024 bits are available for application use. FIGURE 9-1: MEMORY ORGANIZATION 9.1.1 EUI-64™ SUPPORT USING THE 24AAXXXE48 The pre-programmed EUI-48 node address of the 24AAXXXE48 can easily be encapsulated at the application level to form a globally unique, 64-bit node address for systems utilizing the EUI-64 standard. This is done by adding 0xFFFE between the OUI and the Extension Identifier, as shown below. Note: 00h Standard EEPROM 80h Write-Protected Node Address Block As an alternative, the 24AAXXXE64 features an EUI-64 node address that can be used in EUI-64 applications directly without the need for encapsulation, thereby simplifying system software. See Section 9.2 “EUI-64™ Node Address (24AAXXXE64)” for details. FFh 9.1 EUI-48™ Node Address (24AAXXXE48) The 6-byte EUI-48™ node address value of the 24AAXXXE48 is stored in array locations 0xFA through 0xFF, as shown in Figure 9-2. The first three bytes are the Organizationally Unique Identifier (OUI) assigned to Microchip by the IEEE Registration Authority. The remaining three bytes are the Extension Identifier, and are generated by Microchip to ensure a globally unique, 48-bit value. Note: Currently, Microchip’s OUIs are 0x0004A3, 0x001EC0 and 0xD88039, though this will change as addresses are exhausted. FIGURE 9-2: Description EUI-48 NODE ADDRESS PHYSICAL MEMORY MAP EXAMPLE (24AAXXXE48) 24-bit Organizationally Unique Identifier Data 00h Array Address FAh 04h A3h 24-bit Extension Identifier 12h 34h 56h FFh Corresponding EUI-48™ Node Address: 00-04-A3-12-34-56 Corresponding EUI-64™ Node Address After Encapsulation: 00-04-A3-FF-FE-12-34-56 2008-2014 Microchip Technology Inc. DS20002124F-page 13 24AA02E48/24AA025E48/24AA02E64/24AA025E64 EUI-64™ Node Address (24AAXXXE64) 9.2 The remaining five bytes are the Extension Identifier, and are generated by Microchip to ensure a globally unique, 64-bit value. The 8-byte EUI-64™ node address value of the 24AAXXXE64 is stored in array locations 0xF8 through 0xFF, as shown in Figure 9-3. The first three bytes are the Organizationally Unique Identifier (OUI) assigned to Microchip by the IEEE Registration Authority. Note: Note: Currently, Microchip’s OUIs are 0x0004A3, 0x001EC0 and 0xD88039, though this will change as addresses are exhausted. FIGURE 9-3: Description In conformance with IEEE guidelines, Microchip will not use the values 0xFFFE and 0xFFFF for the first two bytes of the EUI-64 Extension Identifier. These two values are specifically reserved to allow applications to encapsulate EUI-48 addresses into EUI-64 addresses. EUI-64 NODE ADDRESS PHYSICAL MEMORY MAP EXAMPLE (24AAXXXE64) 24-bit Organizationally Unique Identifier Data 00h Array Address F8h 04h A3h 40-bit Extension Identifier 12h 34h 56h 78h 90h FFh Corresponding EUI-64™ Node Address: 00-04-A3-12-34-56-78-90 DS20002124F-page 14 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 10.0 PACKAGING INFORMATION 10.1 Package Marking Information 8-Lead SOIC (3.90 mm) Example: 24A2E48I SN e3 1438 13F XXXXXXXT XXXXYYWW NNN 5-Lead SOT-23 (1-Line Marking) Example: XXNN 2K3F 6-Lead SOT-23 (1-Line Marking) Example: XXNN HS3F 5-Lead SOT-23 (2-Line Marking) Example: XXXXY WWNNN AAAB3 271L7 6-Lead SOT-23 (2-Line Marking) Example: XXXXY WWNNN AAAC3 271L7 1st Line Marking Code Part Number SOT-23 SOIC I Temp. E Temp. I Temp. E Temp. 24AA02E48 2KNN(1, 2) AABLY(3) 24A2E48I 24A2E48E 24AA025E48 HSNN(1, 2) AABMY(3) 4A25E48I 4A25E48E 24AA02E64 AAABY(3) AABNY(3) 24A2E64I 24A2E64E 24AA025E64 AAACY(3) AABPY(3) 4A25E64I 4A25E64E Note 1: NN = Alphanumeric traceability code 2: These parts use the 1-line SOT-23 marking format 3: These parts use the 2-line SOT-23 marking format 2008-2014 Microchip Technology Inc. DS20002124F-page 15 24AA02E48/24AA025E48/24AA02E64/24AA025E64 Legend: XX...X T Y YY WW NNN e3 Note: Note: Part number or part number code Temperature (I, E) Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week ‘01’) Alphanumeric traceability code (2 characters for small packages) JEDEC® designator for Matte Tin (Sn) For very small packages with no room for the JEDEC designator e3 , the marking will only appear on the outer carton or reel label. In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. *Standard OTP marking consists of Microchip part number, year code, week code, and traceability code. DS20002124F-page 16 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2008-2014 Microchip Technology Inc. DS20002124F-page 17 24AA02E48/24AA025E48/24AA02E64/24AA025E64 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS20002124F-page 18 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 !"#$% & ! "#$%&"'"" ($) % *++&&&! !+$ 2008-2014 Microchip Technology Inc. DS20002124F-page 19 24AA02E48/24AA025E48/24AA02E64/24AA025E64 ' (("()% & ! "#$%&"'"" ($) % *++&&&! !+$ b N E E1 3 2 1 e e1 D A2 A c φ A1 L L1 ?" !" @!" A#!H )(" @@66 A AE G A ; @%( ;<= E#"%@%( 3 E>J K %%($$"" K 31 % )) 3 K 3; E>L% 6 K 1 %%($L% 63 31 K 3 E>@ K 13 3<= 3; @ @ 3 K N @3 1; K O K 1O @%$"" K N @%L% H K ;3 & 3 !" "%63% #%! %)" #" " %)" #" "" 7%3!!"% !" % 683; <=* <"!" 7>#" && # " & =3< DS20002124F-page 20 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2008-2014 Microchip Technology Inc. DS20002124F-page 21 24AA02E48/24AA025E48/24AA02E64/24AA025E64 * (("()% & ! "#$%&"'"" ($) % *++&&&! !+$ b 4 N E E1 PIN 1 ID BY LASER MARK 1 2 3 e e1 D A A2 c φ L A1 L1 ?" !" @!" A#!H )(" @@66 A A AE G N ( ;<= E#"%@%( 3 3<= E>J K %%($$"" K 3; 31 % )) 3 K 3; E>L% 6 K 1 %%($L% 63 31 K 3 E>@ K 13 @ @ 3 K N @3 1; K O K 1O @%$"" K N @%L% H K ;3 & 3 !" "%63% #%! %)" #" " %)" #" "" 7%3!!"% !" % 683; <=* <"!" 7>#" && # " & =< DS20002124F-page 22 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2008-2014 Microchip Technology Inc. DS20002124F-page 23 24AA02E48/24AA025E48/24AA02E64/24AA025E64 APPENDIX A: REVISION HISTORY Revision A (12/08) Original release of this document. Revision B (01/09) Removed preliminary status. Revision C (03/10) Added new sections 2.0 through 9.0. Revision D (05/10) Added 24AA025E48 part number and 6-lead SOT-23 package. Revision E (04/13) Added 24AA02E64 and 24AA025E64 part numbers. Revision F (10/14) Added E-temp option to part numbers. DS20002124F-page 24 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 THE MICROCHIP WEB SITE CUSTOMER SUPPORT Microchip provides online support via our WWW site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information: Users of Microchip products can receive assistance through several channels: • Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software • General Technical Support – Frequently Asked Questions (FAQ), technical support requests, online discussion groups, Microchip consultant program member listing • Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives • • • • Distributor or Representative Local Sales Office Field Application Engineer (FAE) Technical Support Customers should contact their distributor, representative or Field Application Engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http://microchip.com/support CUSTOMER CHANGE NOTIFICATION SERVICE Microchip’s customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest. To register, access the Microchip web site at www.microchip.com. Under “Support”, click on “Customer Change Notification” and follow the registration instructions. 2008-2014 Microchip Technology Inc. DS20002124F-page 25 24AA02E48/24AA025E48/24AA02E64/24AA025E64 NOTES: DS20002124F-page 26 2008-2014 Microchip Technology Inc. 24AA02E48/24AA025E48/24AA02E64/24AA025E64 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. Device Device: X /XX Temperature Package Range 24AA02E48 = 24AA02E48T = 24AA025E48 = 24AA025E48T = 24AA02E64 = 24AA02E64T = 24AA025E64 = 24AA025E64T = 1.7V, 2 Kbit I2C™ Serial EEPROM with EUI-48™ Node Identity 1.7V, 2 Kbit I2C Serial EEPROM with EUI-48™ Node Identity (Tape and Reel) 1.7V, 2 Kbit I2C Serial EEPROM with EUI-48™ Node Identity and Address Pins 1.7V, 2 Kbit I2C Serial EEPROM with EUI-48™ Node Identity and Address Pins (Tape and Reel) 1.7V, 2 Kbit I2C™ Serial EEPROM with EUI-64™ Node Identity 1.7V, 2 Kbit I2C Serial EEPROM with EUI-64™ Node Identity (Tape and Reel) 1.7V, 2 Kbit I2C Serial EEPROM with EUI-64™ Node Identity and Address Pins 1.7V, 2 Kbit I2C Serial EEPROM with EUI-64™ Node Identity and Address Pins (Tape and Reel) Temperature I Range: E = = -40°C to +85°C -40°C to +125°C Package: = = Plastic SOIC (3.90 mm body), 8-lead SOT-23 (Tape and Reel only) SN OT Examples: a) b) c) 24AA02E48-I/SN: 2 Kbit, 8-byte Serial EEPROM with EUI-48 identity, Industrial Temperature, SOIC package 24AA02E48T-I/OT: 2 Kbit, 8-byte Serial EEPROM with EUI-48 identity, Industrial Temperature, SOT-23 package, tape and reel 24AA025E48-I/SN: 2 Kbit, 16-byte Serial EEPROM with EUI-48 identity, Industrial Temperature, page, node 1.7V, page, node 1.7V, page, node 1.7V, Cascadable, SOIC package d) 24AA02E64-I/SN: 2 Kbit, 8-byte page, Serial EEPROM with EUI-64 node identity, Industrial Temperature, 1.7V, SOIC package e) 24AA02E64T-I/OT: 2 Kbit, 8-byte Serial EEPROM with EUI-64 identity, Industrial Temperature, SOT-23 package, tape and reel 24AA025E64-I/SN: 2 Kbit, 16-byte Serial EEPROM with EUI-64 identity, Industrial Temperature, f) page, node 1.7V, page, node 1.7V, Cascadable, SOIC package g) 24AA025E48T-E/SN: 2 Kbit, 16-byte page, Serial EEPROM with EUI-48 node identity, Automotive Temperature, 1.7V, Cascadable, SOIC package, tape and reel h) 24AA02E48-E/SN: 2 Kbit, 8-byte page, Serial EEPROM with EUI-48 node identity, Automotive Temperature, 1.7V, SOIC package i) 24AA025E48T-E/OT: 2 Kbit, 16-byte page, Serial EEPROM with EUI-48 node identity, Automotive Temperature, 1.7V, Cascadable, SOT-23 package, tape and reel 2008-2013 Microchip Technology Inc. DS20002124F-page27 24AA02E48/24AA025E48/24AA02E64/24AA025E64 NOTES: DS20002124F-page 28 2008-2013 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, dsPIC, FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer, LANCheck, MediaLB, MOST, MOST logo, MPLAB, OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC, SST, SST Logo, SuperFlash and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. The Embedded Control Solutions Company and mTouch are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet, KleerNet logo, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, RightTouch logo, REAL ICE, SQI, Serial Quad I/O, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. GestIC is a registered trademarks of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. © 2008-2014, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. ISBN: 978-1-63276-736-3 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 == 2008-2014 Microchip Technology Inc. Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. DS20002124F-page 29 Worldwide Sales and Service AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://www.microchip.com/ support Web Address: www.microchip.com Asia Pacific Office Suites 3707-14, 37th Floor Tower 6, The Gateway Harbour City, Kowloon Hong Kong Tel: 852-2943-5100 Fax: 852-2401-3431 India - Bangalore Tel: 91-80-3090-4444 Fax: 91-80-3090-4123 Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 China - Beijing Tel: 86-10-8569-7000 Fax: 86-10-8528-2104 Austin, TX Tel: 512-257-3370 China - Chengdu Tel: 86-28-8665-5511 Fax: 86-28-8665-7889 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Cleveland Independence, OH Tel: 216-447-0464 Fax: 216-447-0643 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Novi, MI Tel: 248-848-4000 Houston, TX Tel: 281-894-5983 Indianapolis Noblesville, IN Tel: 317-773-8323 Fax: 317-773-5453 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 New York, NY Tel: 631-435-6000 San Jose, CA Tel: 408-735-9110 Canada - Toronto Tel: 905-673-0699 Fax: 905-673-6509 DS20002124F-page 30 China - Chongqing Tel: 86-23-8980-9588 Fax: 86-23-8980-9500 China - Hangzhou Tel: 86-571-8792-8115 Fax: 86-571-8792-8116 China - Hong Kong SAR Tel: 852-2943-5100 Fax: 852-2401-3431 China - Nanjing Tel: 86-25-8473-2460 Fax: 86-25-8473-2470 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 China - Shenzhen Tel: 86-755-8864-2200 Fax: 86-755-8203-1760 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 China - Xian Tel: 86-29-8833-7252 Fax: 86-29-8833-7256 India - New Delhi Tel: 91-11-4160-8631 Fax: 91-11-4160-8632 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 India - Pune Tel: 91-20-3019-1500 Japan - Osaka Tel: 81-6-6152-7160 Fax: 81-6-6152-9310 Germany - Dusseldorf Tel: 49-2129-3766400 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Japan - Tokyo Tel: 81-3-6880- 3770 Fax: 81-3-6880-3771 Germany - Pforzheim Tel: 49-7231-424750 Korea - Daegu Tel: 82-53-744-4301 Fax: 82-53-744-4302 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 Italy - Venice Tel: 39-049-7625286 Malaysia - Kuala Lumpur Tel: 60-3-6201-9857 Fax: 60-3-6201-9859 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Malaysia - Penang Tel: 60-4-227-8870 Fax: 60-4-227-4068 Poland - Warsaw Tel: 48-22-3325737 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-5778-366 Fax: 886-3-5770-955 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 Sweden - Stockholm Tel: 46-8-5090-4654 UK - Wokingham Tel: 44-118-921-5800 Fax: 44-118-921-5820 Taiwan - Kaohsiung Tel: 886-7-213-7830 Taiwan - Taipei Tel: 886-2-2508-8600 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 China - Xiamen Tel: 86-592-2388138 Fax: 86-592-2388130 China - Zhuhai Tel: 86-756-3210040 Fax: 86-756-3210049 03/25/14 2008-2014 Microchip Technology Inc.