HD64F3687GH Renesas Electronics America, HD64F3687GH Datasheet - Page 106
HD64F3687GH
Manufacturer Part Number
HD64F3687GH
Description
IC H8 MCU FLASH 56K 64-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3684GFPV.pdf
(538 pages)
Specifications of HD64F3687GH
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
45
Program Memory Size
56KB (56K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 5 Clock Pulse Generators
5.2
Figure 5.7 shows a block diagram of the subclock generator.
5.2.1
Clock pulses can be supplied to the subclock divider by connecting a 32.768-kHz crystal
resonator, as shown in figure 5.8. Figure 5.9 shows the equivalent circuit of the 32.768-kHz crystal
resonator.
Rev.5.00 Nov. 02, 2005 Page 72 of 500
REJ09B0027-0500
Subclock Generator
Connecting 32.768-kHz Crystal Resonator
Note: Constants are reference values.
Figure 5.8 Typical Connection to 32.768-kHz Crystal Resonator
Figure 5.9 Equivalent Circuit of 32.768-kHz Crystal Resonator
C
R
f
W
X
Figure 5.7 Block Diagram of Subclock Generator
O
S
1
= 32.768 kHz
= 14 k
= 1.5 pF (typ.)
(typ.)
X
X
X
X
2
1
Note : Registance is a reference value.
1
2
L
S
8M
C
C
1
2
C
S
C
C = C = 15 pF (typ.)
O
1
2
R
S
X
2
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