HD64F3437STF16V Renesas Electronics America, HD64F3437STF16V Datasheet - Page 263
HD64F3437STF16V
Manufacturer Part Number
HD64F3437STF16V
Description
MCU 3/5V 60K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300r
Datasheet
1.HD64F3437STF16V.pdf
(755 pages)
Specifications of HD64F3437STF16V
Core Processor
H8/300
Core Size
8-Bit
Speed
16MHz
Connectivity
Host Interface, I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
2K 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:
HD64F3437STF16V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
HD64F3437STF16V
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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11.4.4
If a switch is made between watchdog timer mode and interval timer mode while the WDT is
operating, correct operation may not be performed. The WDT must be stopped (by clearing the
TME bit to 0) before changing the timer mode.
11.4.5
If the RESO output signal is input to the chip’s RES pin, the chip will not be initialized correctly.
Ensure that the RESO signal is not logically input to the chip’s RES pin. When resetting the entire
system with the RESO signal, use a circuit such as that shown in figure 11.8.
11.4.6
The following points should be noted when using the microcomputer’s on-chip watchdog timer to
detect program runaway.
During program runaway, instructions other than the usual instructions may be executed. If an
instruction reserved for system use is executed as a result of runaway, the watchdog timer may
sometimes stop, preventing detection of the runaway.
This problem can be avoided by making the following settings in the program.
1. Set code H'0004 in ROM address H'0002.
2. Set code H'56F0 in ROM address H'0004.
As system reserved addresses may be used by an emulator, the above settings should only be made
for the actual chip.
Reset signal to entire chip
Switching between Watchdog Timer Mode and Interval Timer Mode
System Reset by RESO Signal
Detection of Program Runaway
Figure 11.8 Sample Circuit for System Reset by RESO Signal
Reset input
H8/3437 Series chip
RESO
RES
231
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