R5F212A8SNFA#U0 Renesas Electronics America, R5F212A8SNFA#U0 Datasheet - Page 172

• Manufacturer Part Number: R5F212A8SNFA#U0
• Description: IC R8C/2A MCU FLASH 64K 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/2Ar

Specifications of R5F212A8SNFA#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 55
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: R0K5212D8S001BE - KIT STARTER FOR R8C/2DR0K5212D8S000BE - KIT DEV FOR R8C/2D
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/2A Group, R8C/2B Group
Rev.2.00
REJ09B0324-0200
Figure 13.1
Internal reset signal
CPU clock
NOTE:
1. When the CSPRO bit is set to 1 (count source protection mode enabled), 0FFFh is set.
Write to WDTR register
Nov 26, 2007
(“L” active)
Block Diagram of Watchdog Timer
Page 150 of 580
Prescaler
1/128
1/16
1/2
CM07 = 0,
WDC7 = 1
CM07 = 1
CM07 = 0,
WDC7 = 0
fOCO-S
CSPRO = 0
CSPRO = 1
Watchdog timer
Set to
7FFFh
CSPRO: Bit in CSPR register
WDC7: Bit in WDC register
PM12: Bit in PM1 register
CM07: Bit in CM0 register
(1)
13. Watchdog Timer
PM12 = 0
Watchdog timer
interrupt request
PM12 = 1
Watchdog
timer reset