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25AA320A Datasheet(Hoja de datos) 4 Page - Microchip Technology

No. de Pieza. 25AA320A
Descripción  32K SPI Bus Serial EEPROM
Descarga  26 Pages
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Fabricante  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
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 4 page
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25AA320A/25LC320A
DS21828C-page 4
© 2007 Microchip Technology Inc.
TABLE 1-3:
AC TEST CONDITIONS
17
THH
HOLD Hold Time
20
40
80
ns
ns
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
18
THZ
HOLD Low to Output
High-Z
30
60
160
ns
ns
ns
4.5V
≤ Vcc ≤ 5.5V(Note 1)
2.5V
≤ Vcc < 4.5V(Note 1)
1.8V
≤ Vcc < 2.5V(Note 1)
19
THV
HOLD High to Output
Valid
30
60
160
ns
ns
ns
4.5V
≤ Vcc ≤ 5.5V
2.5V
≤ Vcc < 4.5V
1.8V
≤ Vcc < 2.5V
20
TWC
Internal Write Cycle Time
5
ms
(NOTE 2)
21
Endurance
1M
E/W
Cycles
(NOTE 3)
TABLE 1-2:
AC CHARACTERISTICS (CONTINUED)
AC CHARACTERISTICS
Industrial (I):
TA = -40°C to +85°C
VCC = 1.8V to 5.5V
Automotive (E):
TA = -40°C to +125°C
VCC = 2.5V to 5.5V
Param.
No.
Sym.
Characteristic
Min.
Max.
Units
Test Conditions
Note 1: This parameter is periodically sampled and not 100% tested.
2: TWC 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 our web site:
www.microchip.com.
AC Waveform:
VLO = 0.2V
VHI = VCC - 0.2V
(Note 1)
VHI = 4.0V
(Note 2)
CL = 50 pF
Timing Measurement Reference Level
Input
0.5 VCC
Output
0.5 VCC
Note 1: For VCC
≤ 4.0V
2: For VCC > 4.0V




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