DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 424

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

Specifications of DF71251AD50FPV

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 11.1 shows a block diagram of the WDT.
Rev. 5.00 Mar. 06, 2009 Page 404 of 770
REJ09B0243-0500
Internal reset
cancellation
[Legend]
WTCSR:
WTCNT:
WDTOVF
Interrupt
Standby
request
request
Watchdog timer control/status register
Watchdog timer counter
Standby
Interrupt
control
control
control
Reset
Figure 11.1 Block Diagram of WDT
WTCSR
Clock selection
Overflow
Bus interface
Internal bus
WDT
WTCNT
Clock selector
Divider
Clock
Standby
mode
Peripheral
clock (Pφ)