R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 504

• Manufacturer Part Number: R5F21324CNSP#U0
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Cr

Specifications of R5F21324CNSP#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: 15
• 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 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 475 of 573
29.2
Figure 29.1
The flash memory contains a user ROM area and a boot ROM area (reserved area).
Figure 29.1 show the R8C/32C 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.
0FFFFh
03FFFh
0F7FFh
03000h
0F000h
0F800h
Memory Map
ROM 4 KB product
R8C/32C Group Flash Memory Block Diagram
Block 1: 2 Kbytes
Block 0: 2 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
0EFFFh
0FFFFh
03FFFh
0F7FFh
0E000h
0F000h
0F800h
03000h
ROM 8 KB product
Block 2: 4 Kbytes
Block 1: 2 Kbytes
Block 0: 2 Kbytes
Block A: 1 Kbyte
Block B: 1 Kbyte
Block C: 1 Kbyte
Block D: 1 Kbyte
User ROM area
0FFFFh
03FFFh
0C000h
0E000h
03000h
0F000h
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
Data flash
Program ROM
29. Flash Memory