DF2170VTE33 Renesas Electronics America, DF2170VTE33 Datasheet - Page 317
DF2170VTE33
Manufacturer Part Number
DF2170VTE33
Description
MCU 3V 256K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Datasheet
1.DF2170BVTE33V.pdf
(572 pages)
Specifications of DF2170VTE33
Core Processor
H8S/2000
Core Size
16-Bit
Speed
33MHz
Connectivity
SCI, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
76
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
HD64F2170VTE33
HD64F2170VTE33
HD64F2170VTE33
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2170VTE33V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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This LSI incorporates an 8-bit watchdog timer with one channel (WDT). If a system crash
prevents the CPU from writing to the timer counter, thus allowing it to overflow, the WDT can
generate an internal reset signal or an internal NMI interrupt signal.
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. A block
diagram of the WDT is shown in figure 10.1.
10.1
• Selectable from eight counter input clocks.
• Switchable between watchdog timer mode and interval timer mode
Watchdog Timer Mode:
•
Internal Timer Mode:
•
If the counter overflows, an internal reset or an internal NMI interrupt is generated.
If the counter overflows, an internal timer interrupt (WOVI) is generated.
(Interrupt request signal)
(Interrupt request signal)
Internal reset signal
Internal NMI
Features
WOVI
Legend
TCSR : Timer control/status register
TCNT : Timer counter
Section 10 Watchdog Timer (WDT)
Interrupt
control
control
Reset
Figure 10.1 Block Diagram of WDT
Overflow
Module bus
TCNT
Clock
WDT
selection
Clock
TCSR
Rev. 2.00, 03/04, page 283 of 534
Internal clock
interface
φ/2
φ/64
φ/128
φ/512
φ/2048
φ/8192
φ/32768
φ/131072
Bus
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