DF36034GHJ Renesas Electronics America, DF36034GHJ Datasheet - Page 279
DF36034GHJ
Manufacturer Part Number
DF36034GHJ
Description
MCU 3/5V 32K J-TEMP POR&LVD 64-Q
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.DF36057GFZV.pdf
(594 pages)
Specifications of DF36034GHJ
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-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F36034GHJ
HD64F36034GHJ
HD64F36034GHJ
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The watchdog timer is an 8-bit timer that can generate an internal reset signal for this LSI if a
system crash prevents the CPU from writing to the timer counter, thus allowing it to overflow.
The block diagram of the watchdog timer is shown in figure 13.1.
13.1
[Legend]
WDT: Watchdog timer
SBT: Subtimer
Selectable from nine counter input clocks.
Eight internal clock sources ( /64, /128, /256, /512, /1024, /2048, /4096, and /8192)
or the internal oscillator (WDT and SBT) can be selected as the timer-counter clock. When the
internal oscillator is selected, it can operate as the watchdog timer in any operating mode.
Reset signal generated on counter overflow
An overflow period of 1 to 256 times the selected clock can be set.
Features
[Legend]
TCSRWD: Timer control/status register WD
TCWD:
PSS:
TMWD:
oscillator
Internal
From subtimer
Timer counter WD
Prescaler S
Timer mode register WD
Figure 13.1 Block Diagram of Watchdog Timer
Section 13 Watchdog Timer
CLK
PSS
w(fw)
TCSRWD
TCWD
TMWD
Rev. 4.00 Mar. 15, 2006 Page 245 of 556
Section 13 Watchdog Timer
Internal reset
signal
REJ09B0026-0400
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