DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 476

• 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: -

A block diagram of the WDT is shown in figure 15.1.
Rev.2.00 May. 28, 2009 Page 436 of 732
REJ09B0059-0200
Internal reset signal
(Interrupt request signal)
(Interrupt request signal)
Internal NMI
WOVI
[Legend]
TCSR:
TCN :
Timer control/status register
Timer counter
Interrupt
control
control
Reset
Figure 15.1 Block Diagram of WDT
Overflow
Module bus
TCNT
Clock
WDT
selection
Clock
TCSR
Internal clock
interface
φ/2
φ/64
φ/128
φ/512
φ/2048
φ/8192
φ/32768
φ/131072
Bus