24AA02E48T-I/OT Microchip Technology, 24AA02E48T-I/OT Datasheet - Page 13
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24AA02E48T-I/OT
Manufacturer Part Number
24AA02E48T-I/OT
Description
IC EEPROM 2KBIT 400KHZ SOT23-5
Manufacturer
Microchip Technology
Specifications of 24AA02E48T-I/OT
Memory Size
2K (256 x 8)
Package / Case
SOT-23-5, SC-74A, SOT-25
Format - Memory
EEPROMs - Serial (with MAC Address)
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
Organization
256 K x 8
Interface Type
I2C
Maximum Clock Frequency
0.1 MHz
Access Time
3500 ns
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
Operating Supply Voltage
1.8 V , 2.5 V , 3.3 V , 5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
24AA02E48T-I/OTTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
24AA02E48T-I/OT
Manufacturer:
MCP
Quantity:
9 000
Company:
Part Number:
24AA02E48T-I/OT
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
24AA02E48T-I/OT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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