2008-2016 Microchip Technology Inc. DS20002123F-page 1
25AA02E48/25AA02E64
Device Selection Table
Features
Pre-Programmed Globally Unique, 48-bit or 64-bit
Node Address
Compatible with EUI-48™ and EUI-64™
10 MHz Maximum Clock Frequency
Low-Power CMOS Technology:
- Maximum Write Current: 5 mA at 5.5V
- Read Current: 5 mA at 5.5V, 10 MHz
- Standby Current: 1 µA at 2.5V
256 x 8-bit Organization
Write Page Mode (up to 16 bytes)
Sequential Read
Self-Timed Erase and Write Cycles
(5 ms maximum)
Block Write Protection:
- Protect none, 1/4, 1/2 or all of array
Built-in Write Protection:
- Power-on/off data protection circuitry
- Write enable latch
- Write-protect pin
High Reliability:
- Endurance: 1,000,000 erase/write cycles
- Data retention: >200 years
- ESD protection: >4000V
Temperature Ranges Supported:
Pb-Free and RoHS Compliant
Package Types (not to scale)
Description
The Microchip Technology Inc.
25AA02E48/25AA02E64 (25AA02EXX) is a 2 Kbit
Serial Electrically Erasable Programmable Read-Only
Memory (EEPROM). The memory is accessed via a
simple Serial Peripheral Interface (SPI) compatible
serial bus. The bus signals required are a clock input
(SCK) plus separate data in (SI) and data out (SO)
lines. Access to the device is controlled through a Chip
Select (CS
) input.
Communication to the device can be paused via the
hold pin (HOLD). While the device is paused,
transitions on its inputs will be ignored, with the
exception of Chip Select, allowing the host to service
higher priority interrupts.
The 25AA02EXX is available in the standard 8-lead
SOIC and 6-lead SOT-23 packages.
Pin Function Table
Part Number VCC Range Page Size Temp. Ranges Packages Node Address
25AA02E48 1.8V-5.5V 16 Bytes I SN, OT EUI-48™
25AA02E64 1.8V-5.5V 16 Bytes I SN, OT EUI-64™
- Industrial (I): -40Cto +85C
4
1
2
3
6
V
DD
SO
SCK
V
SS
SI
5
CS
6-Lead SOT-23
(OT)
CS
SO
WP
VSS
V
CC
HOLD
SCK
SI
1
2
3
4
8
7
6
5
SOIC
(SN)
Note: 25AA02EXX is used in this document as a
generic part number for the
25AA02E48/25AA02E64 devices.
Name Function
CS
Chip Select Input
SO Serial Data Output
WP
Write-Protect
V
SS Ground
SI Serial Data Input
SCK Serial Clock Input
HOLD
Hold Input
V
CC Supply Voltage
2K SPI Bus Serial EEPROMs with EUI-48™ or EUI-64™ Node Identity
25AA02E48/25AA02E64
DS20002123F-page 2 2008-2016 Microchip Technology Inc.
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
(†)
VCC.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. V
SS ......................................................................................................... -0.6V to VCC +1.0V
Storage temperature .................................................................................................................................-65°C to 150°C
Ambient temperature under bias.................................................................................................................-40°C to 85°C
ESD protection on all pins..........................................................................................................................................4 kV
TABLE 1-1: DC CHARACTERISTICS
† 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.
DC CHARACTERISTICS Industrial (I): TA = -40°C to +85°C VCC = 1.8V to 5.5V
Param.
No.
Symbol Characteristic Min. Max. Units Test Conditions
D1 V
IH1 High-Level Input Voltage 0.7 VCC VCC +1 V
D2 V
IL1 Low-Level Input Voltage -0.3 0.3 VCC VVCC2.7V (Note 1)
D3 V
IL2 Low-Level Input Voltage -0.3 0.2 VCC VVCC < 2.7V (Note 1)
D4 V
OL Low-Level Output Voltage 0.4 V IOL = 2.1 mA
D5 V
OL Low-Level Output Voltage 0.2 V IOL = 1.0 mA, VCC < 2.5V
D6 V
OH High-Level Output Voltage VCC -0.5 V IOH = -400 µA
D7 I
LI Input Leakage Current ±1 µA CS =VCC, VIN =VSS or VCC
D8 ILO Output Leakage Current ±1 µA CS = VCC, VOUT = VSS or VCC
D9 CINT Internal Capacitance
(all inputs and outputs)
—7pFTA = 25°C, CLK = 1.0 MHz,
V
CC =5.0V (Note 1)
D10 I
CCREAD Operating Current 5 mA VCC = 5.5V; FCLK = 10.0 MHz,
SO = Open
2.5 mA V
CC = 2.5V; FCLK =5.0MHz,
SO = Open
D11 I
CCWRITE Operating Current 5 mA VCC = 5.5V
—3mAV
CC = 2.5V
D12 I
CCS Standby Current 1 µA CS = VCC = 2.5V, Inputs tied to
V
CC or VSS, TA = +85°C
Note 1: This parameter is periodically sampled and not 100% tested.
2008-2016 Microchip Technology Inc. DS20002123F-page 3
25AA02E48/25AA02E64
TABLE 1-2: AC CHARACTERISTICS
AC CHARACTERISTICS Industrial (I): TA = -40°C to +85°C VCC = 1.8V to 5.5V
Param.
No.
Symbol Characteristic Min. Max. Units Test Conditions
1F
CLK Clock Frequency 10 MHz 4.5V VCC 5.5V
—5MHz2.5V V
CC 4.5V
—3MHz1.8V V
CC 2.5V
2T
CSS CS Setup Time 50 ns 4.5V VCC 5.5V
100 ns 2.5V V
CC 4.5V
150 ns 1.8V V
CC 2.5V
3T
CSH CS Hold Time 100 ns 4.5V VCC 5.5V
200 ns 2.5V V
CC 4.5V
250 ns 1.8V V
CC 2.5V
4T
CSD CS Disable Time 50 ns
5T
SU Data Setup Time 10 ns 4.5V VCC 5.5V
20 ns 2.5V V
CC 4.5V
30 ns 1.8V V
CC 2.5V
6T
HD Data Hold Time 20 ns 4.5V VCC 5.5V
40 ns 2.5V V
CC 4.5V
50 ns 1.8V V
CC 2.5V
7T
R CLK Rise Time 100 ns Note 1
8T
F CLK Fall Time 100 ns Note 1
9T
HI Clock High Time 50 ns 4.5V VCC 5.5V
100 ns 2.5V V
CC 4.5V
150 ns 1.8V V
CC 2.5V
10 T
LO Clock Low Time 50 ns 4.5V VCC 5.5V
100 ns 2.5V V
CC 4.5V
150 ns 1.8V V
CC 2.5V
11 T
CLD Clock Delay Time 50 ns
12 T
CLE Clock Enable Time 50 ns
13 T
V Output Valid from Clock
Low
—50ns4.5V VCC 5.5V
100 ns 2.5V V
CC 4.5V
160 ns 1.8V V
CC 2.5V
14 T
HO Output Hold Time 0 ns Note 1
Note 1: This parameter is periodically sampled and not 100% tested.
2: T
WC begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle
is complete.
3: 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 website
at www.microchip.com.

25AA02E48T-I/SN

Mfr. #:
Manufacturer:
Microchip Technology
Description:
EEPROM 2K, 256x8, 1.8V MAC Addressable
Lifecycle:
New from this manufacturer.
Delivery:
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