R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 652
R5F21346CNFP#U0
Manufacturer Part Number
R5F21346CNFP#U0
Description
MCU 1KB FLASH 32K ROM 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/34Cr
Datasheet
1.R5F21346CNFPU0.pdf
(759 pages)
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
-
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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
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