DF36034GFPJV Renesas Electronics America, DF36034GFPJV Datasheet - Page 110
DF36034GFPJV
Manufacturer Part Number
DF36034GFPJV
Description
MCU 3/5V 32K J TEMP PB-FREE 64LQ
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Specifications of DF36034GFPJV
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, SCI, SSU
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
45
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Section 5 Clock Pulse Generators
5.2
5.2.1
Prescaler S is a 13-bit counter using the system clock ( ) as its input clock. It is incremented once
per clock period. Prescaler S is initialized to H'0000 by a reset, and starts counting on exit from
the reset state. In standby mode, subactive mode, and subsleep mode, the system clock pulse
generator stops. Prescaler S also stops and is initialized to H'0000. The CPU cannot read or write
prescaler S. The output from prescaler S is shared by the on-chip peripheral modules. The divider
ratio can be set separately for each on-chip peripheral function. In active mode and sleep mode,
the clock input to prescaler S is determined by the division ratio designated by the MA2 to MA0
bits in SYSCR2.
5.3
5.3.1
Resonator characteristics are closely related to board design and should be carefully evaluated by
the user, referring to the examples shown in this section. Resonator circuit constants will differ
depending on the resonator element, stray capacitance in its interconnecting circuit, and other
factors. Suitable constants should be determined in consultation with the resonator element
manufacturer. Design the circuit so that the resonator element never receives voltages exceeding
its maximum rating.
5.3.2
When using a crystal resonator (ceramic resonator), place the resonator and its load capacitors as
close as possible to the OSC
resonator circuit to prevent induction from interfering with correct oscillation (see figure 5.7).
Rev. 4.00 Mar. 15, 2006 Page 76 of 556
REJ09B0026-0400
Prescaler
Prescaler S
Usage Notes
Note on Resonators
Notes on Board Design
Figure 5.7 Example of Incorrect Board Design
1
Avoid
and OSC
OSC
OSC
2
pins. Other signal lines should be routed away from the
1
2
Signal A
Signal B
C
C
1
2
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