DS80C390_05 Datasheet, PDF (24/53 Pages) Dallas Semiconductor – Dual CAN High-Speed Microprocessor

DS80C390 Dual CAN High-Speed Microprocessor
POWER-CYCLE TIMING CHARACTERISTICS
PARAMETER
Crystal Startup Time (Note 14)
Power-On Reset Delay (Note 15)
SYMBOL
t_CSU
t_POR
TYP
1.8
MAX
65,536
UNITS
ms
t_CLCL
Note 14: Startup time for crystals varies with load capacitance and manufacturer. Time shown is for an 11.0592MHz crystal manufactured by
Fox Electronics.
Note 15: Reset delay is a synchronous counter of crystal oscillations during crystal startup. Counting begins when the level on the XTAL1 input
meets the V_IH2 criteria. At 40MHz, this time is approximately 1.64ms.
Figure 27. Power-Cycle Timing
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