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DS1251 데이터 시트보기 (PDF) - Maxim Integrated
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DS1251
4096K NV SRAM with Phantom Clock
Maxim Integrated
DS1251 Datasheet PDF : 20 Pages
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DS1251/DS1251P
MEMORY AC ELECTRICAL CHARACTERISTICS
Over the operating range (5V)
PARAMETER
SYMBOL
DS1251Y-70
MIN
MAX
UNITS NOTES
Read Cycle Time
Access Time
t
RC
70
ns
t
ACC
70
ns
OE
to Output Valid
t
OE
35
ns
CE
to Output Valid
t
CO
70
ns
OE
or
CE
to Output Active
t
COE
5
ns
5
Output High-Z from Deselection
t
OD
25
ns
5
Output Hold from Address Change
t
OH
5
ns
Write Cycle Time
t
WC
70
ns
Write Pulse Width
t
WP
50
ns
3
Address Setup Time
t
AW
0
ns
Write Recovery Time
t
WR
0
ns
Output High-Z from
WE
t
ODW
25
ns
5
Output Active from
WE
t
OEW
5
ns
5
Data Setup Time
t
DS
30
ns
4
Data Hold Time from
WE
t
DH
5
ns
4
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