DS2251 View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated
Part Name
Description
Manufacturer
DS2251 Datasheet PDF : 20 Pages
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AC CHARACTERISTICS (cont'd)
EXTERNAL CLOCK DRIVE
# PARAMETER
28 External Clock High Time
@ 12 MHz
@ 16 MHz
29 External Clock Low Time
@ 12 MHz
@ 16 MHz
30 External Clock Rise Time
@ 12 MHz
@ 16 MHz
31 External Clock Fall Time
@ 12 MHz
@ 16 MHz
DS2251T
(tA=0˚C to70˚C; VCC=5V ± 10%)
SYMBOL MIN
MAX UNITS
tCLKHPW
20
ns
15
ns
tCLKLPW
20
ns
15
ns
tCLKR
20
ns
15
ns
tCLKF
20
ns
15
ns
EXTERNAL CLOCK TIMING
AC CHARACTERISTICS (cont'd)
POWER CYCLING TIMING
# PARAMETER
32 Slew Rate from VCCMIN to 3.3V
33 Crystal Startup Time
34 Power-On Reset Delay
(tA=0˚C to70˚C; VCC=5V ± 10%)
SYMBOL MIN
MAX UNITS
tF
130
µs
tCSU
(note 6)
tPOR
21504
tCLK
13 of 20
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