DF2218BR24V Renesas Electronics America, DF2218BR24V Datasheet - Page 656

• Manufacturer Part Number: DF2218BR24V
• Description: IC H8S/2218 MCU FLASH 112-LFBGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2218BR24V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 24MHz
• Connectivity: SCI, SmartCard, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 6x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 112-LFBGA
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK2218-SS - KIT DEV H8S/2218 WINDOWS SIDESHW3DK2218 - DEV EVAL KIT H8S/2218
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

19.2
Clock pulses can be supplied by connecting a crystal resonator, or by input of an external clock.
19.2.1
A crystal resonator can be connected as shown in the example in figure 19.2. Select the damping
resistance R
Table 19.1 Damping Resistance Value
Figure 19.3 shows the equivalent circuit of the crystal resonator. Use a crystal resonator that has
the characteristics shown in table 19.2.
Table 19.2 Crystal Resonator Characteristics
Rev.7.00 Dec. 24, 2008 Page 600 of 698
REJ09B0074-0700
Frequency (MHz)
R
Frequency (MHz)
R
C
d
S
0
(Ω)
max (pF)
max (Ω)
Connecting a Crystal Resonator
System Clock Oscillator
d
according to table 19.1. An AT-cut parallel-resonance crystal should be used.
Figure 19.2 Connection of Crystal Resonator (Example)
EXTAL
XTAL
6
300
Figure 19.3 Crystal Resonator Equivalent Circuit
6
100
7
XTAL
R
d
8
200
8
80
7
L
C
C
L1
L2
10
100
C
C
10
60
7
L
0
AT-cut parallel-resonance type
R
s
C
(Recommended value, including
stray capacitance of circuit board)
13
0
L1
13
60
7
= C
L2
= 10 to 22 pF
EXTAL
16
0
16
50
7
20
0
20
40
7
24
0
24
40
7