R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 193

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00
Page 163 of 589
13. Option Function Select Area
13.1
Figure 13.1
The option function select area is used to select the MCU state after a reset, the function to prevent rewriting in
parallel I/O mode, or the watchdog timer operation. The reset vector highest-order-address, 0FFFFh and 0FFDBh,
are assigned as the option function select area. Figure 13.1 shows the Option Function Select Area.
Overview
Option Function Select Area
Dec. 14, 2009
Option function select area
0FFDBh to 0FFD8h
0FFFFh to 0FFFCh
Address
OFS2
OFS
Reserved area
Reset vector
4 bytes
13. Option Function Select Area