R5F61662N50FPV Renesas Electronics America, R5F61662N50FPV Datasheet - Page 905

• Manufacturer Part Number: R5F61662N50FPV
• Description: MCU 24KB FLASH 384K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61662N50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

23.2
Clock pulses can be supplied by connecting a crystal resonator, or by input of an external clock.
23.2.1
A crystal resonator can be connected as shown in the example in figure 23.2. Select the damping
resistance R
When the clock is provided by connecting a crystal resonator, a crystal resonator having a
frequency of 8 to 18 MHz should be connected.
Table 23.1 Damping Resistance Value
Figure 23.3 shows an equivalent circuit of the crystal resonator. Use a crystal resonator that has
the characteristics shown in table 23.2.
Frequency (MHz)
R
d
(Ω)
Oscillator
Connecting Crystal Resonator
d
according to table 23.1. An AT-cut parallel-resonance type should be used.
Figure 23.2 Connection of Crystal Resonator (Example)
XTAL
Figure 23.3 Crystal Resonator Equivalent Circuit
EXTAL
XTAL
8
200
R
d
L
C
C
L1
L2
12
0
C
C
L
0
AT-cut parallel-resonance type
R
s
C
L1
Rev. 2.00 Sep. 16, 2009 Page 875 of 1036
= C
L2
16
0
= 10 to 22 pF
Section 23 Clock Pulse Generator
EXTAL
18
0
REJ09B0414-0200