R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 521

• 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 Dec. 14, 2009
Page 491 of 589
30.2
Figure 30.1
The flash memory contains a user ROM area and a boot ROM area (reserved area).
Figure 30.1 show the R8C/33C Group Flash Memory Block Diagrams.
The user ROM area contains program ROM and data flash.
Program ROM: Flash memory mainly used for storing programs
Data flash:
The user ROM area is divided into several blocks. The user ROM area can be rewritten in CPU rewrite mode,
standard serial I/O mode, or parallel I/O mode.
The rewrite control program (standard boot program) for standard serial I/O mode is stored in the boot ROM area
before shipment. The boot ROM area is allocated separately from the user ROM area.
0C000h
0FFFFh
03FFFh
0E000h
03000h
0F000h
Memory Map
ROM 16 KB product
R8C/33C Group Flash Memory Block Diagram
Block 2: 8 Kbytes
Block 1: 4 Kbytes
Block 0: 4 Kbytes
Block A: 1 Kbyte
Block B: 1 Kbyte
Block C: 1 Kbyte
Block D: 1 Kbyte
User ROM area
Flash memory mainly used for storing data to be rewritten
0BFFFh
0FFFFh
03FFFh
0F7FFh
0FFFFh
03FFFh
0C000h
0F000h
0F800h
0A000h
0E000h
0F000h
03000h
03000h
ROM 24 KB product
ROM 4 KB product
Block 1: 2 Kbytes
Block 0: 2 Kbytes
Block 3: 8 Kbytes
Block 2: 8 Kbytes
Block 1: 4 Kbytes
Block 0: 4 Kbytes
Block A: 1 Kbyte
Block B: 1 Kbyte
Block C: 1 Kbyte
Block D: 1 Kbyte
Block C: 1 Kbyte
Block D: 1 Kbyte
Block A: 1 Kbyte
Block B: 1 Kbyte
User ROM area
User ROM area
0EFFFh
0BFFFh
0FFFFh
0FFFFh
03FFFh
0E000h
0F7FFh
03FFFh
0C000h
0E000h
03000h
0F000h
0F800h
03000h
08000h
0F000h
ROM 32 KB product
ROM 8 KB product
Block 3: 16 Kbytes
Block 2: 4 Kbytes
Block 1: 2 Kbytes
Block 0: 2 Kbytes
Block 2: 8 Kbytes
Block 1: 4 Kbytes
Block 0: 4 Kbytes
Block A: 1 Kbyte
Block B: 1 Kbyte
Block C: 1 Kbyte
Block D: 1 Kbyte
Block A: 1 Kbyte
Block B: 1 Kbyte
Block C: 1 Kbyte
Block D: 1 Kbyte
User ROM area
User ROM area
Data flash
Program ROM
Data flash
Program ROM
30. Flash Memory