24AA025E48-I/SN Microchip Technology, 24AA025E48-I/SN Datasheet - Page 13

• Manufacturer Part Number: 24AA025E48-I/SN
• Description: IC EEPROM 2KBIT 400KHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 24AA025E48-I/SN

• Memory Size: 2K (256 x 8)
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 100kHz, 400kHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Ic Interface Type: I2C
• Clock Frequency: 400kHz
• Supply Voltage Range: 1.7V To 5.5V
• Memory Case Style: SOIC
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Memory Configuration: 2 BLK(128 X 8)
• Rohs Compliant: Yes
• Interface Type: I2C
• Maximum Clock Frequency: 400 KHz
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.7 V
• Maximum Operating Current: 3 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

9.0
The 24AAXXXE48 is programmed at the factory with a
globally unique, EUI-48™ and EUI-64™ compatible
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:
FIGURE 9-2:
 2010 Microchip Technology Inc.
Corresponding EUI-48™ Node Address: 00-04-A3-12-34-56
Corresponding EUI-64™ Node Address: 00-04-A3-FF-FE-12-34-56
Description
Address
PRE-PROGRAMMED EUI-48™
NODE ADDRESS
Array
Data
Write-Protected
EUI-48™ Block
MEMORY ORGANIZATION
EUI-48 NODE ADDRESS PHYSICAL MEMORY MAP EXAMPLE
EEPROM
Standard
FAh
00h
24-bit Organizationally
Unique Identifier
00h
80h
FFh
04h
A3h
24AA02E48/24AA025E48
12h
The 6-byte EUI-48 node address value is stored in
array locations 0xFA through 0xFF, as shown in
Figure 9-2. The first 3 bytes are the Organizationally
Unique Identifier (OUI) assigned to Microchip by the
IEEE Registration Authority. Microchip’s OUI is
0x0004A3. The remaining 3 bytes are the Extension
Identifier, and are generated by Microchip to ensure a
globally-unique, 48-bit value.
9.1
The pre-programmed EUI-48 node address can easily
be encapsulated at the application level to form a glob-
ally 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.
24-bit Extension
EUI-64™ Support
Identifier
34h
FFh
56h
DS22124D-page 13