HD64F2145BTE20 Renesas Electronics America, HD64F2145BTE20 Datasheet - Page 299
HD64F2145BTE20
Manufacturer Part Number
HD64F2145BTE20
Description
IC H8S MCU FLASH 256K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of HD64F2145BTE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SCI, X-Bus
Peripherals
PWM, WDT
Number Of I /o
74
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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This LSI has an on-chip 14-bit pulse-width modulator (PWM) timer with two output channels. It
can be connected to an external low-pass filter to operate as a 14-bit D/A converter.
10.1
Figure 10.1 shows a block diagram of the PWM (D/A) module.
PWM1411A_010020020700
Division of pulse into multiple base cycles to reduce ripple
Two resolution settings
The resolution can be set equal to one or two system clock cycles.
Two base cycle settings
The base cycle can be set equal to T
Four operating speeds
Four operation clocks (by combination of two resolution settings and two base cycle settings)
PWX0
PWX1
Features
Section 10 14-Bit PWM Timer (PWMX)
Legend:
DACR
DADRA
DADRB
DACNT
Select clock
Control
logic
: PWM D/A control register
: PWM D/A data register A
: PWM D/A data register B
: PWM D/A counter
Figure 10.1 PWM (D/A) Block Diagram
Internal clock
Base cycle compare match A
Fine–adjustment pulse addition
Base cycle compare match B
Fine–adjustment pulse addition
Base cycle overflow
/2
Clock
64 or T
Comparator A
Comparator B
256, where T is the resolution.
DACNT
DACR
Rev. 3.00 Mar 21, 2006 page 243 of 788
Section 10 14-Bit PWM Timer (PWMX)
DADRA
DADRB
Internal data bus
Module data bus
Bus interface
REJ09B0300-0300
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