HD6473308RCP10V Renesas Electronics America, HD6473308RCP10V Datasheet - Page 189

• Manufacturer Part Number: HD6473308RCP10V
• Description: MCU 5V 16K,PB-FREE 80-PLCC
• Manufacturer: Renesas Electronics America
• Series: H8® H8/330r

Specifications of HD6473308RCP10V

• Core Size: 8-Bit
• Program Memory Size: 16KB (16K x 8)
• Oscillator Type: Internal
• Core Processor: H8/300
• Speed: 10MHz
• Number Of I /o: 58
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 80-PLCC
• No. Of I/o's: 58
• Ram Memory Size: 512Byte
• Cpu Speed: 10MHz
• No. Of Timers: 3
• No. Of Pwm Channels: 2
• Digital Ic Case: RoHS Compliant
• Controller Family/series: H8/330
• Peripherals: ADC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply (vcc/vdd): -
• Eeprom Size: -
• Data Converters: -
• Peripherals: -
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

If the system clock frequency is 10MHz, then the resolution, period, and frequency of the PWM
output for each clock source are given in Table 8-3.
Table 8-3. PWM Timer Parameters for 10MHz System Clock
Internal clock frequency
Ø/2
Ø/8
Ø/32
Ø/128
Ø/256
Ø/1024
Ø/2048
Ø/4096
8.3 Operation
8.3.1 Timer Incrementation
The PWM clock source is created from the system clock (Ø) by a prescaler. The timer counter
increments on a TCNT clock pulse generated from the falling edge of the prescaler output as shown
in Figure 8-2.
Ø
Prescaler
output
TCNT clock
pulse
TCNT
Resolution =
PWM period
PWM frequency
N–1
1/clock source frequency
=
=
resolution 250
1/PWM period
Figure 8-2. TCNT Increment Timing
Resolution
200ns
800ns
3.2µs
12.8µs
25.6µs
102.4µs
204.8µs
409.6µs
175
N
PWM period
50µs
200µs
800µs
3.2ms
6.4ms
25.6ms
51.2ms
102.4ms
PWM frequency
20kHz
5kHz
1.25kHz
312.5Hz
156.3Hz
39.1Hz
19.5Hz
9.8Hz
N+1