R5F21236JFP Renesas Electronics America, R5F21236JFP Datasheet - Page 438
R5F21236JFP
Manufacturer Part Number
R5F21236JFP
Description
MCU 3/5V 32K+2K 48-LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21236JFP
Core Processor
R8C
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Company:
Part Number:
R5F21236JFP
Manufacturer:
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Quantity:
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R5F21236JFP#U1
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Quantity:
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
20.2
The flash memory contains a user ROM area and a boot ROM area (reserved area).
Figure 20.1 shows the Flash Memory Block Diagram for R8C/22 Group. Figure 20.2 shows the Flash Memory
Block Diagram for R8C/23 Group.
The user ROM area of R8C/23 Group contains an area which stores a MCU operating program (program ROM)
and the 1-Kbyte block A and B (data flash).
The user ROM area is divided into several blocks. The user ROM area can be rewritten in CPU rewrite and
standard serial I/O and parallel I/O modes.
When rewriting the block 0 and block 1 in CPU rewrite mode, set the FMR02 bit in the FMR0 register to 1 (rewrite
enables), and when setting the FMR15 bit in the FMR1 register to 0 (rewrite enables), block 0 is rewritable. When
setting the FMR16 bit to 0 (rewrite enables), block 1 is rewritable.
When rewriting the block 2 and block 3 in CPU rewrite mode, set the FMR02 bit in the FMR0 register to 1 (rewrite
enables).
The rewrite control program for standard serial I/O mode is stored in boot ROM area before shipment. The boot
ROM area and the user ROM area share the same address, but have an another memory.
Memory Map
Page 416 of 501
20. Flash Memory
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