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DS1553 Datasheet(PDF) 11 Page - Dallas Semiconductor

Part # DS1553
Description  64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM
PDF  19 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1553 Datasheet(HTML) 11 Page - Dallas Semiconductor

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DS1553 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM
11 of 19
READ CYCLE, AC CHARACTERISTICS
(VCC = 5.0V ±10%, over the operating range.)
70ns ACCESS
100ns ACCESS
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
UNITS
NOTES
Read Cycle Time
tRC
70
100
ns
Address Access Time
tAA
70
100
ns
CE to DQ Low-Z
tCEL
5
5
ns
CE Access Time
tCEA
70
100
ns
CE Data Off Time
tCEZ
25
35
ns
OE to DQ Low-Z
tOEL
5
5
ns
OE Access Time
tOEA
35
55
ns
OE Data Off Time
tOEZ
25
35
ns
Output Hold from Address
tOH
5
5
ns
READ CYCLE, AC CHARACTERISTICS
(VCC = 3.3V ±10%, over the operating range.)
120ns ACCESS
150ns ACCESS
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
UNITS
NOTES
Read Cycle Time
tRC
120
150
ns
Address Access Time
tAA
120
150
ns
CE to DQ Low-Z
tCEL
5
5
ns
CE Access Time
tCEA
120
150
ns
CE Data Off Time
tCEZ
40
50
ns
OE to DQ Low-Z
tOEL
5
5
ns
OE Access Time
tOEA
100
130
ns
OE Data Off Time
tOEZ
35
35
ns
Output Hold from Address
tOH
5
5
ns
WRITE CYCLE, AC CHARACTERISTICS
(VCC = 5.0V ±10%, over the operating range.)
70ns ACCESS
100ns ACCESS
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
UNITS
NOTES
Write Cycle Time
tWC
70
100
ns
Address Access Time
tAS
0
0
ns
WE Pulse Width
tWEW
50
70
ns
CE Pulse Width
tCEW
60
75
ns
Data Setup Time
tDS
30
40
ns
Data Hold time
tDH
0
0
ns
Address Hold Time
tAH
5
5
ns
WE Data Off Time
tWEZ
25
35
ns
Write Recovery Time
tWR
5
5
ns



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