HD6433713 datasheet(14/324 Pages) RENESAS

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Table 1-1 Features (cont)

Item

Description

Timers

• Timer A: 8-bit interval timer

Count-up timer with selection of eight internal clock signals divided from

the system clock (

φ)* and four clock signals divided from the subclock

(

SUB)

• Timer B: 8-bit reload timer

Count-up timer with selection of seven internal clock signals or event input

from pin P10/IRQ0

• Timer C: 8-bit reload timer

Count-up/count-down timer with selection of seven internal clock signals

or event input from pin P11/IRQ1

• Timer D: 8-bit event counter

Up-counter for counting input from pin P16/EVENT

• Timer E: 8-bit reloadable timer

Count-up timer with selection of eight internal clock signals. Square-wave

(50% duty cycle) output with a fixed frequency or variable frequency

controlled by timer E overflow can be selected by pin P15/IRQ5/TMOE

settings.

Note: *

φ indicates a clock frequency that is divided in half from the original

oscillator frequency

14-bit PWM

• Pulse-division PWM designed for less ripple

• Can be used as a 14-bit D/A converter by connecting to an external low-

pass filter

VFD

• Up to 24 segment pins and up to 16 digit pins (of which 8 are for both

driver/controller

uses)

• Brightness adjustable in 8 steps (dimmer function)

• Digit and segment pins can be switched to use as general-purpose high-

voltage pins

• Key scan interval can be enabled or disabled

• Interrupt can be requested when key scan interval starts

• 2-channel synchronous SCI1 and SCI2

• Choice of 8-bit or 16-bit data transfer (SCI1)

• Automatic transfer of 32-byte data (SCI2)

• Overrun error detection possible

• Interrupt can be requested when transfer is complete

Serial communica-

tion interface

HD6433713 Datasheet(PDF) 14 Page - Renesas Technology Corp

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