AT25080A
(1)
,AT25160A
(2)
AT25320A
(3)
,AT25640A
(4)
SPI Automotive Temperature Serial EEPROMs
NOT RECOMMENDED
FOR NEW DESIGNS
1. AT25080A Replaced by
AT25080B Automotive
2. AT25160A Replaced by
AT25160B Automotive
3. AT25320A Replaced by
AT25320B Automotive
4. AT25640A Replaced by
AT25640B Automotive
8K (1024 x 8), 16K (2048 x 8), 32K (4096 x 8), 64K (8192 x 8)
DATASHEET
Features
Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 (0,0) and 3 (1,1)
̶
̶
Data Sheet Describes Mode 0 Operation
2.7 (V
CC
= 2.7V to 5.5V)
Medium-voltage and Standard-voltage Operation
Extended Temperature Range: –40C to 125C
5MHz Clock Rate
32-byte Page Mode
Block Write Protection
̶
Protect 1/4, 1/2, or Entire Array
Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and
Software Data Protection
Self-timed Write Cycle (2ms at 5.0V V
CC
Typical)
High Reliability
̶
̶
Endurance: 1,000,000 Write Cycles
Data Retention: 100 Years
8-lead JEDEC SOIC and TSSOP Packages
Description
The AT25080A/160A/320A/640A provides 8,192/16,384/32,768/65,536 bits of
Serial Electrically-Erasable Programmable Read-only Memory (EEPROM)
organized as 1,024/2,048/4,096/8,192 words of 8 bits each. The device is
optimized for use in many automotive applications where low-power and
low-voltage operation are essential. The AT25080A/160A/320A/640A is available
in space-saving 8-lead JEDEC SOIC and TSSOP packages.
The AT25080A/160A/320A/640A is enabled through the Chip Select pin (CS) and
accessed via a 3-Wire interface consisting of Serial Data Input (SI), Serial Data
Output (SO), and Serial Clock (SCK). All programming cycles are completely
self-timed, and no separate erase cycle is required before write.
Block write protection is enabled by programming the status register with one of
four blocks of write protection. Separate program enable and program disable
instructions are provided for additional data protection. Hardware data protection
is provided via the WP pin to protect against inadvertent write attempts to the
status register. The HOLD pin may be used to suspend any serial communication
without resetting the serial sequence.
Atmel-5082E-SEEPROM-AT25080A-160A-320A-640A-Auto-Datasheet_102014
1.
Pin Configurations and Pinouts
Table 1-1.
Pin Name
CS
SCK
SI
SO
GND
V
CC
WP
HOLD
Pin Configurations
Function
Chip Select
CS
1
2
3
4
8
7
6
5
8-lead SOIC
(Top View)
V
CC
HOLD
SCK
SI
CS
SO
WP
GND
8-lead TSSOP
(Top View)
1
2
3
4
8
7
6
5
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Write Protect
Suspends Serial Input
SO
WP
GND
V
CC
HOLD
SCK
SI
2.
Absolute Maximum Ratings*
Operating Temperature
40C
to +125C
Storage Temperature
65C
to +150C
Voltage on Any Pin
with Respect to Ground
1.0V
to +7.0V
Maximum Operating Voltage . . . . . . . . . . . . . . . 6.25V
DC Output Current . . . . . . . . . . . . . . . . . . . . . . .5.0mA
*Notice: Stresses beyond 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 these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
2
AT25080A/160A/320A/640A Automotive [DATASHEET]
Atmel-5082E-SEEPROM-AT25080A-160A-320A-640A-Auto-Datasheet_102014
4.
4.1
Memory Organization
Pin Capacitance
Table 4-1.
Pin Capacitance
(1)
Applicable over recommended operating range from T
A
= 25C, f = 1.0MHz, V
CC
= +5.0V (unless otherwise noted).
Symbol
C
OUT
C
IN
Note:
1.
Test Conditions
Output Capacitance (SO)
Input Capacitance (CS, SCK, SI, WP, HOLD)
This parameter is characterized and is not 100% tested.
Max
8
6
Units
pF
pF
Conditions
V
OUT
= 0V
V
IN
= 0V
4.2
DC Characteristics
Table 4-2.
DC Characteristics
Applicable over recommended operating range from: T
A
=
40C
to +125C, V
CC
= +2.7V to +5.5V.
Symbol
V
CC1
I
CC1
I
CC2
I
CC3
I
SB1
I
SB2
I
IL
I
OL
V
IL(2)
V
IH(2)
V
OL1
V
OH1
Notes:
1.
2.
Parameter
Supply Voltage
Supply Current
Supply Current
Supply Current
Standby Current
Standby Current
Input Leakage
Output Leakage
Input Low-voltage
Input High-voltage
Output Low-voltage
Output High-voltage
2.7V
V
CC
5.5V
2.7V
V
CC
5.5V
I
OL
= 3.0mA
I
OH
=
1.6mA
V
CC
0.8
V
CC
= 5.0V at 5MHz, SO = Open, Read
V
CC
= 5.0V at 1MHz
V
CC
= 5.0V at 5MHz,
SO = Open, Read, Write
V
CC
= 2.7V, CS = V
CC
V
CC
= 5.0V, CS = V
CC
V
IN
= 0V to V
CC
V
IN
= 0V to V
CC
3.0
3.0
0.6
V
CC
x 0.7
3.0
V
CC
x 0.3
V
CC
+ 0.5
0.4
0.2
2.0
Test Condition
Min
2.7
Typ
Max
5.5
6.0
3.0
7.0
10.0
(1)
13.0
(1)
Units
V
mA
mA
mA
μA
μA
μA
μA
V
V
V
V
Worst case measured at 125C.
V
IL
min and V
IH
max are reference only and are not tested.
4
AT25080A/160A/320A/640A Automotive [DATASHEET]
Atmel-5082E-SEEPROM-AT25080A-160A-320A-640A-Auto-Datasheet_102014
4.3
AC Characteristics
Table 4-3.
AC Characteristics
Applicable over recommended operating range from T
A
=
40C
to +125C, V
CC
= As Specified, CL = 1 TTL Gate and 100pF
(unless otherwise noted).
Symbol
Parameter
SCK Clock Frequency
Input Rise Time
Input Fall Time
SCK High Time
SCK Low Time
CS High Time
CS Setup Time
CS Hold Time
Data In Setup Time
Data In Hold Time
Hold Setup Time
Hold Time
Output Valid
Output Hold Time
Hold to Output Low Z
Hold to Output High Z
Output Disable Time
Write Cycle Time
5.0V, 25°C, Page Mode
Voltage
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
2.7 – 5.5
1,000,000
40
40
80
80
80
5
20
40
40
0
0
0
40
80
80
5
40
Min
0
Max
5
2
2
Units
MHz
μs
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
Write Cycles
f
SCK
t
RI
t
FI
t
WH
t
WL
t
CS
t
CSS
t
CSH
t
SU
t
H
t
HDS
t
HDN
t
V
t
HO
t
LZ
t
HZ
t
DIS
t
WC
Endurance
(1)
Note:
1.
This parameter is characterized and is not 100% tested.
AT25080A/160A/320A/640A Automotive [DATASHEET]
Atmel-5082E-SEEPROM-AT25080A-160A-320A-640A-Auto-Datasheet_102014
5
Integrated technical exchanges
京公网安备 11010802033920号
EEWORLD
