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H8S2245 Datasheet(PDF) 810 Page - Renesas Technology Corp

No. de pieza H8S2245
Descripción Electrónicos  Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
PDF  818 Pages
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Fabricante Electrónico  RENESAS [Renesas Technology Corp]
Página de inicio  http://www.renesas.com
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H8S2245 Datasheet(HTML) 810 Page - Renesas Technology Corp

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Appendix E Pin States at Power-On
Rev.3.00 Mar. 26, 2007 Page 768 of 772
REJ09B0355-0300
E.2
When Pins Settle from the High-Impedance State at Power-On
When the
STBY pin level changes from low to high after powering on, the chip goes to the power-
on reset state after a high level is detected at the
STBY pin. While the chip detects a low level at
the
STBY pin, it is in the hardware standby mode. During this interval, the pins are in the high-
impedance state.
After detecting a high level at the
STBY pin, the chip starts oscillation.
VCC
NMI
φ
Power-on reset
tOSC1
NMI = High
RES = Low
T1
Confirm t1min and tNMIS.
Hardware
standby mode
STBY
RES
Figure E.2 When Pins Settle from the High-Impedance State at Power-On



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