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Part Name
Description
DS1642 View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated
Part Name
Description
Manufacturer
DS1642
Nonvolatile Timekeeping RAM
Dallas Semiconductor -> Maxim Integrated
DS1642 Datasheet PDF : 11 Pages
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DS1642
READ CYCLE, AC CHARACTERISTICS
(0°C to 70°C; VCC = 5.0V ± 10%)
PARAMETER
SYMBOL
70 ns access 100 ns access
MIN MAX MIN MAX
UNITS
NOTES
Read Cycle Time
Address Access Time
t
RC
70
100
ns
t
AA
70
100
ns
CE
to DQ Low-Z
t
CEL
5
5
ns
CE
Access Time
t
CEA
70
100
ns
CE
Data Off Time
t
CEZ
25
35
ns
OE
to DQ Low-Z
t
OEL
5
5
ns
OE
Access Time
t
OEA
35
55
ns
OE
Data Off Time
t
OEZ
25
35
ns
Output Hold from Address
t
OH
5
5
ns
READ CYCLE TIMING DIAGRAM
6 of 11
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