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PDF AT25160A Data sheet ( Hoja de datos )
| Número de pieza | AT25160A | |
| Descripción | SPI Automotive Temperature Serial EEPROMs | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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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
1 page  
4.3 AC Characteristics
Table 4-3. AC Characteristics
Applicable over recommended operating range from TA = 40C to +125C, VCC = As Specified, CL = 1 TTL Gate and 100pF
(unless otherwise noted).
Symbol
fSCK
tRI
tFI
tWH
tWL
tCS
tCSS
tCSH
tSU
tH
tHDS
tHDN
tV
tHO
tLZ
tHZ
tDIS
tWC
Endurance(1)
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
Min
0
40
40
80
80
80
5
20
40
40
0
0
0
1,000,000
Max Units
5 MHz
2 μs
2 μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
40 ns
ns
40 ns
80 ns
80 ns
5 ms
Write Cycles
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
5 Page 
7. Timing Diagrams
Figure 7-1. Synchronous Data Timing (for Mode 0)
VIH
CS
VIL
SCK
VIH
VIL
VIH
SI
VIL
tCSS
tWH
tSU tH
Valid In
VOH
SO
VOL
HI-Z
tWL
tV
Figure 7-2. WREN Timing
CS
SCK
SI
SO
WREN Opcode
HI-Z
Figure 7-3. WRDI Timing
CS
SCK
SI
SO
WRDI Opcode
HI-Z
tCS
tCSH
tHO tDIS
HI-Z
AT25080A/160A/320A/640A Automotive [DATASHEET]
Atmel-5082E-SEEPROM-AT25080A-160A-320A-640A-Auto-Datasheet_102014
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet AT25160A.PDF ] | |
Hoja de datos destacado
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