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X84640 Datasheet(PDF) 11 Page - IC MICROSYSTEMS

Part # X84640
Description  Advanced MPS??Micro Port Saver EEPROM with Block Lock??Protection
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Manufacturer  ICMIC [IC MICROSYSTEMS]
Direct Link  http://www.icmic.com
Logo ICMIC - IC MICROSYSTEMS

X84640 Datasheet(HTML) 11 Page - IC MICROSYSTEMS

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X84160/640/128
11
Write Cycle Limits – X84160/640/128
Notes: (5) tNVWC is the time from the falling edge of OE or CE (whichever occurs last) of the second read cycle in the “start nonvolatile write cycle”
sequence until the self-timed, internal nonvolatile write cycle is completed.
(6) Data is latched into the X84160/640/128 on the rising edge of CE or WE, whichever occurs first.
(7) Periodically sampled, but not 100% tested.
Symbol
Parameter
VCC = 4.5V – 5.5V VCC = 2.5V – 5.5V VCC = 1.8V – 3.6V
Units
Min.
Max.
Min.
Max.
Min.
Max.
tNVWC
(5)
Nonvolatile Write Cycle Time
55
5
ms
tWC
Write Cycle Time
70
125
250
ns
tWP
WE Pulse Width
20
35
50
ns
tWPH
WE HIGH Recovery Time
50
90
180
ns
tCS
Write Setup Time
0
0
0
ns
tCH
Write Hold Time
0
0
0
ns
tCP
CE Pulse Width
20
35
70
ns
tCPH
CE HIGH Recovery Time
50
90
180
ns
tOES
OE HIGH Setup Time
25
25
50
ns
tOEH
OE HIGH Hold Time
25
25
50
ns
tDS
(6)
Data Setup Time
12
20
30
ns
tDH
(6)
Data Hold Time
5
5
5
ns
tWPSU
(7)
WP HIGH Setup
100
100
150
ns
tWPHD
(7)
WP HIGH Hold
100
100
150
ns


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