HD6473228F10V Renesas Electronics America, HD6473228F10V Datasheet - Page 145

• Manufacturer Part Number: HD6473228F10V
• Description: MCU 5V 32K,PB-FREE 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/325r

Specifications of HD6473228F10V

• Core Processor: H8/300
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI, UART/USART
• Number Of I /o: 53
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: OTP
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Peripherals: -

(2) External Clock Input: Can be selected by the CKS1 and CKS0 bits in the TCR. The FRC
increments on the rising edge of the FTCI clock signal. The pulse width of the external clock signal
must be at least 1.5 system clock (Ø) cycles. The counter will not increment correctly if the pulse
width is shorter than this.
Figure 7-5 shows the increment timing. Figure 7-6 shows the minimum external clock pulse width.
Ø
Prescaler
output
FRC clock
pulse
FRC
FTCI
FRC clock pulse
FRC
Ø
N – 1
Figure 7-5. Increment Timing for External Clock Source
Figure 7-4. Increment Timing for Internal Clock Source
N
N
137
N + 1
Fig 7-4
N + 1