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25LC320 Datasheet(PDF) 4 Page - Microchip Technology

No. de Pieza. 25LC320
Descripción  32K 2.5V SPI Bus Serial EEPROM
Descarga  12 Pages
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Fabricante  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
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25LC320 Datasheet(HTML) 4 Page - Microchip Technology

 
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25LC320
DS21158B-page 4
Preliminary
© 1996 Microchip Technology Inc.
TABLE 1-3:
AC CHARACTERISTICS
Applicable over recommended operating ranges shown below unless otherwise noted:
VCC = 2.5V to 5.5V
Commercial (C):
Tamb = 0
°C to +70°C
Industrial (I):
Tamb = -40
°C to +85°C
Symbol
Parameter
Min
Max
Units
Test Conditions
fSCK
Clock Frequency
3
2
MHz
MHz
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tCSS
CS Setup Time
100
250
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tCSH
CS Hold Time
100
250
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tCSD
CS Disable Time
250
500
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tSU
Data Setup Time
30
50
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tHD
Data Hold Time
50
100
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tR
CLK Rise Time
2
µs
(Note 1)
tF
CLK Fall Time
2
µs
(Note 1)
tHI
Clock High Time
150
250
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tLO
Clock Low Time
150
250
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tCLD
Clock Delay Time
50
ns
tV
Output Valid from
Clock Low
150
250
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tHO
Output Hold Time
0
ns
tDIS
Output Disable Time
200
250
ns
ns
VCC=4.5V to 5.5V (Note 1)
VCC=2.5V to 4.5V (Note 1)
tHS
HOLD Setup Time
100
100
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tHH
HOLD Hold Time
100
100
ns
ns
VCC=4.5V to 5.5V
VCC=2.5V to 4.5V
tHZ
HOLD Low to Output High-Z
100
150
ns
ns
VCC=4.5V to 5.5V (Note 1)
VCC=2.5V to 4.5V (Note 1)
tHV
HOLD High to Output Valid
100
150
ns
ns
VCC=4.5V to 5.5V (Note 1)
VCC=2.5V to 4.5V (Note 1)
tWC
Internal Write Cycle Time
5
ms
(Note 2)
Endurance
1M
E/W Cycles 25
°C, Vcc = 5.0V, Block Mode
(Note 3)
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 self-timed write
cycle is complete.
3: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific appli-
cation, please consult the Total Endurance Model which can be obtained on our BBS or website.


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