25AA02E48/25AA02E64
2K SPI Bus Serial EEPROMs with EUI-48™ or EUI-64™ Node Identity
Device Selection 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™
Features
Description
• 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:
- Industrial (I):
-40C to +85C
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.
Note:
25AA02EXX is used in this document as a
generic
part
number
for
the
25AA02E48/25AA02E64 devices.
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
Name
Function
SCK 1
6 VDD
VSS 2
5 CS
1
8
4 SO
Ground
Serial Data Input
Serial Clock Input
Hold Input
Supply Voltage
VCC
SO
2
7
HOLD
WP
SI 3
Write-Protect
HOLD
CS
WP
SCK
SOIC
(SN)
Serial Data Output
VCC
6-Lead SOT-23
(OT)
SO
SI
Package Types (not to scale)
Chip Select Input
VSS
• Pb-Free and RoHS Compliant
CS
3
6
SCK
VSS
4
5
SI
2008-2016 Microchip Technology Inc.
DS20002123F-page 1
