DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 527
DF2238RTF6
Manufacturer Part Number
DF2238RTF6
Description
MCU 2.2/3V 256K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
Specifications of DF2238RTF6
Core Processor
H8S/2000
Core Size
16-Bit
Speed
6MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
72
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 3.6 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
-
Other names
HD64F2238RTF6
HD64F2238RTF6
HD64F2238RTF6
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2238RTF6V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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The watchdog timer (WDT) 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.
When this watchdog function is not needed, the WDT can be used as an interval timer. In interval
timer operation, an interval timer interrupt is generated each time the counter overflows.
The block diagram of the WDT is shown in figure 13.1.
13.1
• Selectable from 8 counter input clocks for WDT_0
• Switchable between watchdog timer mode and interval timer mode
In watchdog timer mode
• Choosable between power-on reset or manual reset as internal reset
• If the counter in WDT_0 overflows, it is possible to select whether this LSI is internally reset
• If the counter in WDT_1 overflows, it is possible to select whether this LSI is internally reset
In interval timer mode
• If the counter overflows, the WDT generates an interval timer interrupt (WOVI)
• The selected clock can be output from the BUZZ output pin (WDT_1)
Selectable from 16 counter input clocks for WDT_1
or not
or the internal NMI interrupt is generated
Features
Section 13 Watchdog Timer (WDT)
Rev. 6.00 Mar. 18, 2010 Page 465 of 982
Section 13 Watchdog Timer (WDT)
REJ09B0054-0600
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