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25AA02E48
2K SPI Bus Serial EEPROM with EUI-48? Node Identity
Device Selection Table
Part Number
25AA02E48
V CC Range
1.8-5.5V
Page Size
16 Bytes
Temp. Ranges
I
Packages
SN, OT
Features:
? Pre-programmed Globally Unique, 48-bit Node
Address
? Compatible with EUI-48? and EUI-64?
? 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 ? 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:
- Protect none, 1/4, 1/2 or all of array
? Built-in Write Protection:
Description:
The Microchip Technology Inc. 25AA02E48 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, transi-
tions on its inputs will be ignored, with the exception of
Chip Select, allowing the host to service higher priority
interrupts.
The 25AA02E48 is available in the standard 8-lead
SOIC and 6-lead SOT-23 packages.
Package Types (not to scale)
- 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
SCK
V SS
SI
SOT-23
(OT)
1 6
2 5
3 4
V DD
CS
SO
CS
SO
WP
V SS
1
2
3
4
SOIC
(SN)
8
7
6
5
V CC
HOLD
SCK
SI
- ESD protection: >4000V
? Temperature Ranges Supported:
- Industrial (I): -40 ? C to +85 ? C
? Pb-Free and RoHS Compliant
Pin Function Table
Name
CS
SO
WP
V SS
SI
SCK
HOLD
V CC
Function
Chip Select Input
Serial Data Output
Write-Protect
Ground
Serial Data Input
Serial Clock Input
Hold Input
Supply Voltage
? 2010 Microchip Technology Inc.
DS22123B-page 1
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