R5F21236JFP#U0 Renesas Electronics America, R5F21236JFP#U0 Datasheet - Page 36
![IC R8C/23 MCU FLASH 48LQFP](/photos/28/61/286102/48-lqfp__plqp0048kb-a_sml.jpg)
R5F21236JFP#U0
Manufacturer Part Number
R5F21236JFP#U0
Description
IC R8C/23 MCU FLASH 48LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21236JFP#U0
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
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21236JFP#U0R5F21236JFP
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
R5F21236JFP#U0R5F21236JFP#U1
Manufacturer:
Renesas Electronics America
Quantity:
135
Part Number:
R5F21236JFP#U0R5F21236JFP#U1
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
3.2
Figure 3.2
R5F21236DFP, R5F21236JFP, R5F21236KFP
R5F21237DFP, R5F21237JFP, R5F21237KFP
R5F21238DFP, R5F21238JFP, R5F21238KFP
R5F2123AJFP, R5F2123AKFP
R5F2123CJFP, R5F2123CKFP
Figure 3.2 shows a Memory Map of R8C/23 Group. The R8C/23 Group has 1 Mbyte of address space from
address 00000h to FFFFFh.
The internal ROM (program ROM) is allocated lower addresses, beginning with address 0FFFFh. For example, a
48-Kbyte internal ROM is allocated addresses 04000h to 0FFFFh.
The fixed interrupt vector table is allocated addresses 0FFDCh to 0FFFFh. They store the starting address of each
interrupt routine.
The internal ROM (data flash) is allocated addresses 02400h to 02BFFh.
The internal RAM is allocated higher addresses, beginning with address 00400h. For example, a 2.5-Kbyte
internal RAM is allocated addresses 00400h to 00DFFh. The internal RAM is used not only for storing data but
also for calling subroutines and as stacks when interrupt requests are acknowledged.
Special function registers (SFR) are allocated addresses 00000h to 002FFh and 01300h to 0147Fh (SFR area for
CAN). The peripheral function control registers are allocated them. All addresses within the SFR, which have
nothing allocated are reserved for future use and cannot be accessed by users.
NOTES:
R8C/23 Group
1. Data flash block A (1 Kbyte) and B (1 Kbyte) are shown.
2. SFR area for CAN is allocated addresses 01300h to 0147Fh.
3. The blank regions are reserved. Do not access locations in these regions.
4. Do not use addresses 20000h to 23FFFh because these areas are used for the emulator debugger. Refer to 24. Notes on
Emulator Debugger.
Part Number
0XXXXh
0SSSSh
0YYYYh
ZZZZZh
FFFFFh
02BFFh
0FFFFh
002FFh
00000h
00400h
01300h
02000h
02400h
03000h
Memory Map of R8C/23 Group
Function Registers
Reserved area
(Refer to 4. Special
(program ROM)
(program ROM)
Internal ROM
Internal ROM
Internal ROM
Internal RAM
(data flash)
Internal RAM
Page 14 of 501
(SFRs))
SFR
(1)
(4)
(2)
128 Kbytes
32 Kbytes
48 Kbytes
64 Kbytes
96 Kbytes
Size
Address 0YYYYh Address ZZZZZh
08000h
04000h
04000h
04000h
04000h
Internal ROM
0FFDCh
0FFFFh
Watchdog timer•oscillation stop detection•voltage detection
1BFFFh
13FFFh
23FFFh
-
-
Undefined instruction
BRK instruction
Address match
Address break
2.5 Kbytes
Single step
(Reserved)
3 Kbytes
5 Kbytes
6 Kbytes
2 Kbytes
Overflow
Size
Reset
Address 0XXXXh
00BFFh
00DFFh
00FFFh
00FFFh
00FFFh
Internal RAM
Address 0SSSSh
037FFh
03BFFh
-
-
-
3. Memory
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