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HD6432351 Datasheet(PDF) 1018 Page - Renesas Technology Corp

Part # HD6432351
Description  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 Datasheet(HTML) 1018 Page - Renesas Technology Corp

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Appendix E Pin States at Power-On
Rev. 3.00 Sep 15, 2006 page 984 of 988
REJ09B0330-0300
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
STBY
NMI
RES
φ
Power-on reset
tOSC1
NMI = High
RES = Low
T1
Confirm t1min and tNMIS.
Hardware
standby mode
Figure E.2 When Pins Settle from the High-Impedance State at Power-On



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