DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 453
DF3052BX25V
Manufacturer Part Number
DF3052BX25V
Description
MCU 5V 512K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3052BX25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K 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
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 453 of 847
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12.1
The H8/3052BF has an on-chip watchdog timer (WDT). The WDT has two selectable functions: it
can operate as a watchdog timer to supervise system operation, or it can operate as an interval
timer. As a watchdog timer, it generates a reset signal for the chip if a system crash allows the
timer counter (TCNT) to overflow before being rewritten. In interval timer operation, an interval
timer interrupt is requested at each TCNT overflow.
12.1.1
WDT features are listed below.
Selection of eight counter clock sources
Interval timer option
Timer counter overflow generates a reset signal or interrupt.
The reset signal is generated in watchdog timer operation. An interval timer interrupt is
generated in interval timer operation.
Watchdog timer reset signal resets the entire chip internally.
The reset signal generated by timer counter overflow during watchdog timer operation resets
the entire chip internally.
With the H8/3052BF, a reset signal cannot be output externally.
/2, /32, /64, /128, /256, /512, /2048, or /4096
Overview
Features
Section 12 Watchdog Timer
Rev. 3.00 Mar 21, 2006 page 423 of 814
Section 12 Watchdog Timer
REJ09B0302-0300
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