25AA02E48/25AA02E64
2K SPI Bus Serial EEPROMs with EUI-48™ or EUI-64™ Node Identity
Device Selection Table
Part Number
25AA02E48
25AA02E64
V
CC
Range
1.8V-5.5V
1.8V-5.5V
Page Size
16 Bytes
16 Bytes
Temp. Ranges
I
I
Packages
SN, OT
SN, OT
Node Address
EUI-48™
EUI-64™
Features
• Preprogrammed 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
• Pb-Free and RoHS Compliant
Description
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
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
Package Types (not to scale)
6-Lead SOT-23
(OT)
SCK 1
V
SS
2
SI 3
6 V
DD
5 CS
4 SO
CS
SO
WP
V
SS
1
2
3
4
SOIC
(SN)
8
7
6
5
V
CC
HOLD
SCK
SI
2008-2018 Microchip Technology Inc.
DS20002123G-page 1
25AA02E48/25AA02E64
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
(†)
V
CC
.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. V
SS
..........................................................................................................-0.6V to V
CC
+1.0V
Storage temperature ................................................................................................................................. -65°C to 150°C
Ambient temperature under bias................................................................................................................. -40°C to 85°C
ESD protection on all pins.......................................................................................................................................... 4 kV
† NOTICE:
Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for an
extended period of time may affect device reliability.
TABLE 1-1:
DC CHARACTERISTICS
Industrial (I):
Characteristic
High-Level Input Voltage
Low-Level Input Voltage
Low-Level Input Voltage
Low-Level Output Voltage
Low-Level Output Voltage
High-Level Output Voltage
Input Leakage Current
Output Leakage Current
Internal Capacitance
(all inputs and outputs)
Operating Current
Min.
0.7 V
CC
-0.3
-0.3
—
—
V
CC
-0.5
—
—
—
—
—
T
A
= -40°C to +85°C
Max.
V
CC
+1
0.3 V
CC
0.2 V
CC
0.4
0.2
—
±1
±1
7
5
2.5
5
3
1
Units
V
V
V
V
V
V
µA
µA
pF
mA
mA
mA
mA
µA
V
CC
2.7V
(Note
1)
V
CC
< 2.7V
(Note
1)
I
OL
= 2.1 mA
I
OL
= 1.0 mA, V
CC
< 2.5V
I
OH
= -400 µA
CS = V
CC
, V
IN
= V
SS
or V
CC
CS = V
CC
, V
OUT
= V
SS
or V
CC
T
A
= 25°C, CLK = 1.0 MHz,
V
CC
= 5.0V
(Note
1)
V
CC
= 5.5V; F
CLK
= 10.0 MHz,
SO = Open
V
CC
= 2.5V; F
CLK
= 5.0 MHz,
SO = Open
V
CC
= 5.5V
V
CC
= 2.5V
CS = V
CC
= 2.5V, Inputs tied to
V
CC
or V
SS
, T
A
= +85°C
V
CC
= 1.8V to 5.5V
Test Conditions
DC CHARACTERISTICS
Param.
No.
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
Symbol
V
IH
1
V
IL
1
V
IL
2
V
OL
V
OL
V
OH
I
LI
I
LO
C
INT
I
CCREAD
D11
D12
I
CCWRITE
Operating Current
I
CCS
Standby Current
—
—
—
Note 1:
This parameter is periodically sampled and not 100% tested.
2008-2018 Microchip Technology Inc.
DS20002123G-page 2
25AA02E48/25AA02E64
TABLE 1-2:
AC CHARACTERISTICS (CONTINUED)
Industrial (I):
Min.
—
—
—
16
T
HS
HOLD Setup Time
20
40
80
17
T
HH
HOLD Hold Time
20
40
80
18
T
HZ
HOLD Low to Output
High-Z
30
60
160
19
T
HV
HOLD High to Output
Valid
30
60
160
20
21
T
WC
Internal Write Cycle Time
(byte or page)
Endurance
—
1M
T
A
= -40°C to +85°C
Max.
40
80
160
—
—
—
—
—
—
—
—
—
—
—
—
5
—
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
V
CC
= 1.8V to 5.5V
Test Conditions
4.5V
V
CC
5.5V
(Note
1)
2.5V
V
CC
4.5V
(Note
1)
1.8V
V
CC
2.5V
(Note
1)
4.5V
V
CC
5.5V
2.5V
V
CC
4.5V
1.8V
V
CC
2.5V
4.5V
V
CC
5.5V
2.5V
V
CC
4.5V
1.8V
V
CC
2.5V
4.5V
V
CC
5.5V
(Note
1)
2.5V
V
CC
4.5V
(Note
1)
1.8V
V
CC
2.5V
(Note
1)
4.5V
V
CC
5.5V
2.5V
V
CC
4.5V
1.8V
V
CC
2.5V
Note 2
AC CHARACTERISTICS
Param.
Symbol
No.
15
T
DIS
Characteristic
Output Disable Time
E/W 25°C, V
CC
= 5.5V
(Note
3)
cycles
Note 1:
This parameter is periodically sampled and not 100% tested.
2:
T
WC
begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle
is complete.
3:
This parameter is not tested but ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance™ Model which can be obtained from Microchip’s website
at www.microchip.com.
TABLE 1-3:
AC Waveform
V
LO
= 0.2V
AC TEST CONDITIONS
V
HI
= V
CC
- 0.2V
V
HI
= 4.0V
C
L
= 100 pF
Timing Measurement Reference Level
Input
Output
Note 1:
For V
CC
4.0V
2:
For V
CC
4.0V
Note 1
Note 2
0.5 V
CC
0.5 V
CC
2008-2018 Microchip Technology Inc.
DS20002123G-page 4
微控制器 MCU
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