25AA02E48_13 Datasheet, PDF (1/28 Pages) Microchip Technology – 2K SPI Bus Serial EEPROMs with EUI-48™ or EUI-64™ Node Identity

25AA02E48/25AA02E64
2K SPI Bus Serial EEPROMs with EUI-48™ or EUI-64™ Node Identity
Device Selection Table
Part Number
VCC Range
25AA02E48
25AA02E64
1.8-5.5V
1.8-5.5V
Page Size
16 Bytes
16 Bytes
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:
- 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
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
Temp. Ranges
I
I
Packages
SN, OT
SN, OT
Node Address
EUI-48™
EUI-64™
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.
Pin Function Table
Name
Function
CS
SO
WP
VSS
SI
SCK
HOLD
VCC
Chip Select Input
Serial Data Output
Write-Protect
Ground
Serial Data Input
Serial Clock Input
Hold Input
Supply Voltage
*25AA02EXX is used in this document as a generic part number for the 25AA02E48/25AA02E64 devices.
 2008-2013 Microchip Technology Inc.
DS20002123D-page 1