R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 652

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#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: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K 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: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 619 of 723
31.2
Figure 31.1
03FFFh
0C000h
0FFFFh
0E000h
03000h
0F000h
The flash memory contains a user ROM area and a boot ROM area (reserved area).
Figure 31.1 shows the R8C/34C Group Flash Memory Block Diagram.
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.
Memory Map
ROM 16 KB product
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
R8C/34C Group Flash Memory Block Diagram
Flash memory mainly used for storing data to be rewritten
0BFFFh
0FFFFh
03FFFh
0A000h
0C000h
0E000h
0F000h
03000h
ROM 24 KB product
Block 3: 8 Kbytes
Block 2: 8 Kbytes
Block 1: 4 Kbytes
Block 0: 4 Kbytes
Block C: 1 Kbyte
Block D: 1 Kbyte
Block A: 1 Kbyte
Block B: 1 Kbyte
User ROM area
0BFFFh
0FFFFh
03FFFh
0C000h
0E000h
0F000h
03000h
08000h
ROM 32 KB product
Block 3: 16 Kbytes
Block 2: 8 Kbytes
Block 1: 4 Kbytes
Block 0: 4 Kbytes
Block C: 1 Kbyte
Block D: 1 Kbyte
Block A: 1 Kbyte
Block B: 1 Kbyte
User ROM area
31. Flash Memory
Data flash
Program ROM