HD6473837H Renesas Electronics America, HD6473837H Datasheet - Page 314

• Manufacturer Part Number: HD6473837H
• Description: IC H8 MCU OTP 60K 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473837H

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 84
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: OTP
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

11.1
The H8/3834 Series 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.
Notation:
PWDRL:
PWDRU:
PWCR:
Choice of two conversion periods
A conversion period of 3,268/ , with a minimum modulation width of 2/ (PWCR0 = 1), or a
conversion period of 16,384/ , with a minimum modulation width of 1/ (PWCR0 = 0), can be
chosen.
Pulse division method for less ripple
Overview
Features
Block Diagram
PWM data register L
PWM data register U
PWM control register
PWM
/2
/4
Figure 11.1 Block Diagram of the 14 bit PWM
Section 11 14-Bit PWM
waveform
generator
PWM
PWDRU
PWDRL
PWCR
297