HD6417020SVX12IV Renesas Electronics America, HD6417020SVX12IV Datasheet - Page 109
HD6417020SVX12IV
Manufacturer Part Number
HD6417020SVX12IV
Description
MCU 3/5V 0K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
Specifications of HD6417020SVX12IV
Core Processor
SH-1
Core Size
32-Bit
Speed
12.5MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Type
ROMless
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
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Quantity
Price
Company:
Part Number:
HD6417020SVX12IV
Manufacturer:
RENESAS
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HD6417020SVX12IV
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7.1
The SuperH microcomputer has a built-in clock pulse generator (CPG) that supplies the LSI and
external devices with a clock pulse. The CPG makes the LSI run at the oscillation frequency of the
crystal resonator. The CPG consists of an oscillator and a duty cycle correcting circuit (figure 7.1).
The CPG can be made to generate a clock signal by connecting it to a crystal resonator or by
inputting an external clock. (The CPG is halted in standby mode.)
7.2
Clock pulses can be supplied from a connected crystal resonator or an external clock.
7.2.1
Circuit Configuration: A crystal resonator can be connected as shown in figure 7.2. Use the
damping resistance Rd shown in table 7.1. Use an AT-cut parallel resonating crystal with a
frequency equal to the system clock (CK) frequency. Connect load capacitors (C
shown in the figure. The clock pulse produced by the crystal resonator and internal pulse generator
is sent to the duty cycle correction circuit where its duty cycle is corrected. It is then supplied to
the LSI and to external devices.
System clock
Overview
Clock Source
Connecting a Crystal Resonator
EXTAL
XTAL
Section 7 Clock Pulse Generator (CPG)
CK
Figure 7.1 Block Diagram of the Clock Pulse Generator
Oscillator
Duty correcting
circuit
CPG
L1
Internal
clock ( )
and C
RENESAS 89
L2
) as
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