
DS1318
Parallel-Interface Elapsed Time Counter
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3
AC ELECTRICAL CHARACTERISTICS
(VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Read Cycle Time
tRC
80
ns
Address Access Time
tAA
80
ns
CE to DQ Low-Z
tCEL
0
ns
CE Access Time
tCEA
80
ns
CE Data Off-Time
tCEZ
30
ns
OE to DQ Low-Z
tOEL
0
ns
OE Access Time
tOEA
70
ns
OE Data Off-Time
tOEZ
30
ns
Output Hold from Address
tOH
5
ns
Write Cycle Time
tWC
80
ns
Address Setup Time
tAS
0
ns
WE Pulse Width
tWEW
40
ns
CE Pulse Width
tCEW
70
ns
Data Setup Time
tDS
40
ns
Data Hold Time
tDH
0
ns
Address Hold Time
tAH
0
ns
WE Data Off-Time
tWEZ
30
ns
Write Recovery Time
tWR
10
ns
Oscillator Stop Flag (OSF) Delay
tOSF
(Note 9)
4
ms
DC ELECTRICAL CHARACTERISTICS
(VCC = 0V, VBAT = 3.7V,TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Battery Input Current
(ENOSC = 1)
IBAT
(Note 8)
750
1100
nA
Battery Input Current
(ENOSC = 0)
IBATDR
(Note 8)
100
nA