DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 132
DF2437FV
Manufacturer Part Number
DF2437FV
Description
IC H8S/2437 MCU FLASH 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of DF2437FV
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
85
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Quantity
Price
Company:
Part Number:
DF2437FV
Manufacturer:
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Quantity:
10 000
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5.7.5
IRQ input pins can be selected from port control register 1 (PTCNT1). For details on selectable
pins, refer to section 7, I/O Ports.
When the PTCNT1 setting is changed, an edge occurs internally and the IRQnF bit (n = 0 to 7) of
ISR may be set to 1 at the unintended timing if the selected pin level before the change is different
from the selected pin level after the change. If the IRQn interrupt request (n = 0 to 7) is enabled,
the interrupt exception handling is executed. To prevent the unintended interrupt, ITSR setting
should be changed while the IRQn interrupt request is disabled, then the IRQnF bit should be
cleared to 0.
5.7.6
Since IRQnF flags may be set to 1 depending on the pin states after a reset, be sure to read from
ISR after a reset and then write 0 to clear the IRQnF flags.
Rev.2.00 May. 28, 2009 Page 92 of 732
REJ09B0059-0200
IRQ Pin Select
Note on IRQ Status Register (ISR)
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