AT25080A Datasheet PDF - ATMEL Corporation

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AT25080A
ATMEL Corporation

Part Number AT25080A
Description SPI Automotive Temperature Serial EEPROMs
Page 20 Pages


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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
AT25080A(1),AT25160A(2)
AT25320A(3),AT25640A(4)
SPI Automotive Temperature Serial EEPROMs
8K (1024 x 8), 16K (2048 x 8), 32K (4096 x 8), 64K (8192 x 8)
Features
DATASHEET
Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 (0,0) and 3 (1,1)
̶ Data Sheet Describes Mode 0 Operation
Medium-voltage and Standard-voltage Operation
̶ 2.7 (VCC = 2.7V to 5.5V)
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 VCC 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



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1. Pin Configurations and Pinouts
Table 1-1. Pin Configurations
Pin Name
CS
SCK
SI
SO
GND
VCC
WP
HOLD
Function
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Write Protect
Suspends Serial Input
8-lead SOIC
(Top View)
CS
SO
WP
GND
1
2
3
4
8 VCC
7 HOLD
6 SCK
5 SI
CS
SO
WP
GND
8-lead TSSOP
(Top View)
18
27
36
45
VCC
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



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3. Block Diagram
Figure 3-1. Block Diagram
Status
Register
SI
CS
WP
SCK
VCC GND
Memory Array
1,024/2,048/
4,096/8,192
x8
Data
Register
Mode Decode
Logic
Clock
Generator
HOLD
Address
Decoder
Output
Buffer
SO
AT25080A/160A/320A/640A Automotive [DATASHEET]
Atmel-5082E-SEEPROM-AT25080A-160A-320A-640A-Auto-Datasheet_102014
3



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4. Memory Organization
4.1 Pin Capacitance
Table 4-1.
Pin Capacitance(1)
Applicable over recommended operating range from TA = 25C, f = 1.0MHz, VCC = +5.0V (unless otherwise noted).
Symbol
Test Conditions
Max
Units
Conditions
COUT
CIN
Output Capacitance (SO)
Input Capacitance (CS, SCK, SI, WP, HOLD)
8 pF VOUT = 0V
6 pF VIN = 0V
Note: 1. This parameter is characterized and is not 100% tested.
4.2 DC Characteristics
Table 4-2. DC Characteristics
Applicable over recommended operating range from: TA = 40C to +125C, VCC = +2.7V to +5.5V.
Symbol Parameter
Test Condition
Min Typ
VCC1
ICC1
ICC2
ICC3
Supply Voltage
Supply Current
Supply Current
Supply Current
VCC = 5.0V at 5MHz, SO = Open, Read
VCC = 5.0V at 1MHz
VCC = 5.0V at 5MHz,
SO = Open, Read, Write
2.7
ISB1
ISB2
IIL
IOL
VIL(2)
VIH(2)
VOL1
VOH1
Standby Current
Standby Current
Input Leakage
Output Leakage
Input Low-voltage
Input High-voltage
Output Low-voltage
Output High-voltage
VCC = 2.7V, CS = VCC
VCC = 5.0V, CS = VCC
VIN = 0V to VCC
VIN = 0V to VCC
2.7V VCC 5.5V
2.7V VCC 5.5V
IOL = 3.0mA
IOH = 1.6mA
3.0
3.0
0.6
VCC x 0.7
VCC 0.8
0.2
2.0
Notes: 1. Worst case measured at 125C.
2. VIL min and VIH max are reference only and are not tested.
Max Units
5.5 V
6.0 mA
3.0 mA
7.0 mA
10.0(1)
13.0(1)
3.0
VCC x 0.3
VCC + 0.5
0.4
μA
μA
μA
μA
V
V
V
V
4 AT25080A/160A/320A/640A Automotive [DATASHEET]
Atmel-5082E-SEEPROM-AT25080A-160A-320A-640A-Auto-Datasheet_102014



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