25AA02E48_10 Datasheet, PDF (1/26 Pages) Microchip Technology – 2K SPI Bus Serial EEPROM with EUI-48™ Node Identity

25AA02E48
2K SPI Bus Serial EEPROM with EUI-48™ Node Identity
Device Selection Table
Part Number
VCC Range
25AA02E48
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:
- 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):
-40C to +85C
• Pb-Free and RoHS Compliant
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)
SOT-23
(OT)
SCK 1
VSS ²
SI ³
6 VDD
5 _CS
4 _SO
SOIC
(SN)
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 SI
Pin Function Table
Name
Function
CS
SO
WP
VSS
SI
SCK
Chip Select Input
Serial Data Output
Write-Protect
Ground
Serial Data Input
Serial Clock Input
HOLD
VCC
Hold Input
Supply Voltage
 2010 Microchip Technology Inc.
DS22123B-page 1