HD64F3644DV Renesas Electronics America, HD64F3644DV Datasheet - Page 363

• Manufacturer Part Number: HD64F3644DV
• Description: IC H8/3644 MCU FLASH 64QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644DV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

11.1
The H8/3644 Group is provided with a 14-bit PWM (pulse width modulator) on-chip, which can
be used as a D/A converter by connecting a low-pass filter.
11.1.1
Features of the 14-bit PWM are as follows.
11.1.2
Figure 11.1 shows a block diagram of the 14-bit PWM.
Choice of two conversion periods
A conversion period of 32,768/ , with a minimum modulation width of 2/ or a conversion
period of 16,384/ , with a minimum modulation width of 1/ can be chosen.
Pulse division method for less ripple
Overview
Features
Block Diagram
Legend:
PWDRL:
PWDRU:
PWCR:
PWM
/2
/4
Figure 11.1 Block Diagram of the 14-Bit PWM
PWM data register L
PWM data register U
PWM control register
Section 11 14-Bit PWM
waveform
generator
PWM
Rev. 6.00 Sep 12, 2006 page 341 of 526
PWDRU
PWDRL
PWCR
Section 11 14-Bit PWM
REJ09B0326-0600