Microchip Technology 25AA02E48T-I/OT Memory IC SOT-23-6 2 K 256 x 8 25AA02E48T-I/OT Data Sheet
Product codes
25AA02E48T-I/OT
2008-2013 Microchip Technology Inc.
DS20002123D-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 max. Clock Frequency
• Low-Power CMOS Technology:
• 10 MHz max. Clock Frequency
• Low-Power CMOS Technology:
- Max. Write Current: 5 mA at 5.5V
- Read Current: 5 mA at 5.5V, 10 MHz
- Standby Current: 1
- Read Current: 5 mA at 5.5V, 10 MHz
- Standby Current: 1
A 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 max.)
• Block Write Protection:
• Write Page mode (up to 16 bytes)
• Sequential Read
• Self-Timed Erase and Write Cycles (5 ms max.)
• 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
- Write enable latch
- Write-protect pin
• High Reliability:
- Endurance: 1,000,000 erase/write cycles
- Data retention: >200 years
- ESD protection: >4000V
- 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 Electri-
cally 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, transi-
tions 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.
25AA02E64 (25AA02EXX*) is a 2 Kbit Serial Electri-
cally 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, transi-
tions 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
V
CC
Range
Page Size
Temp. Ranges
Packages
Node Address
25AA02E48
1.8-5.5V
16 Bytes
I
SN, OT
EUI-48™
25AA02E64
1.8-5.5V
16 Bytes
I
SN, OT
EUI-64™
- Industrial (I):
-40
C to +85C
CS
SO
WP
V
SS
1
2
3
4
2
3
4
8
7
6
5
7
6
5
V
CC
HOLD
SCK
SI
SCK
SI
(SN)
SOIC
V
SS
1
2
3
4
6
5
V
DD
CS
SO
SO
(OT)
SOT-23
SCK
SI
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
*25AA02EXX is used in this document as a generic part number for the 25AA02E48/25AA02E64 devices.