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ADUC7023BCPZ62I-R7 Fiches technique(PDF) 92 Page - Analog Devices

No de pièce ADUC7023BCPZ62I-R7
Description  Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU with Enhanced IRQ Handler
PDF  98 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

ADUC7023BCPZ62I-R7 Fiches technique(HTML) 92 Page - Analog Devices

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ADuC7023
Data Sheet
Rev. H | Page 92 of 98
POWER-ON RESET OPERATION
An internal power-on reset (POR) is implemented on the
ADuC7023. For LVDD below 2.40 V typical, the internal POR
holds the part in reset. As LVDD rises above 2.40 V, an internal
timer times out for typically 64 ms before the part is released
from reset. The user must ensure that the power supply IOVDD
has reached a stable 2.7 V minimum level by this time. Likewise,
on power-down, the internal POR holds the part in reset until
LVDD has dropped below 2.40 V.
Figure 53 illustrates the operation of the internal POR in detail.
IOVDD
3.3V
2.6V
2.40V TYP
2.40V TYP
64ms TYP
LVDD
POR
Figure 53. Internal Power-On Reset Operation



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