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HD64F36049 Datasheet(PDF) 491 Page - Renesas Technology Corp

Part # HD64F36049
Description  Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Tiny Series
PDF  562 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD64F36049 Datasheet(HTML) 491 Page - Renesas Technology Corp

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Section 23 Electrical Characteristics
Rev. 3.00 Mar. 15, 2006 Page 459 of 526
REJ09B0060-0300
23.3.7
Power-On Reset Circuit Characteristics (Optional)
Table 23.18 Power-On Reset Circuit Characteristics
V
SS = 0.0 V, Ta = –20 to +75°C, unless otherwise indicated.
Values
Item
Symbol
Test
Condition
Min.
Typ.
Max.
Unit
Pull-up resistance of
RES pin
R
RES
100
150
k
Ω
Power-on reset start voltage*
V
por
100
mV
Note:
*
The power-supply voltage (Vcc) must fall below Vpor = 100 mV and then rise after
charge of the
RES pin is removed completely. In order to remove charge of the RES
pin, it is recommended that the diode be placed in the Vcc side. If the power-supply
voltage (Vcc) rises from the point over 100 mV, a power-on reset may not occur.
23.4
Operation Timing
t
OSC
V
IH
V
IL
t
CPH
t
CPL
t
CPr
OSC1
t
CPf
Figure 23.1 System Clock Input Timing
t
REL
V
IL
RES
t
REL
V
IL
V
CC × 0.7
V
CC
OSC1
Figure 23.2
RES Low Width Timing



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