R5F21274SDFP#U0 Renesas Electronics America, R5F21274SDFP#U0 Datasheet - Page 34

• Manufacturer Part Number: R5F21274SDFP#U0
• Description: IC R8C/27 MCU FLASH 32LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/27r

Specifications of R5F21274SDFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 25
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
3.
3.1
Figure 3.1
Figure 3.1 is a Memory Map of R8C/26 Group. The R8C/26 group has 1 Mbyte of address space from addresses
00000h to FFFFFh.
The internal ROM is allocated lower addresses, beginning with address 0FFFFh. For example, a 16-Kbyte internal
ROM area is allocated addresses 0C000h to 0FFFFh.
The fixed interrupt vector table is allocated addresses 0FFDCh to 0FFFFh. They store the starting address of each
interrupt routine.
The internal RAM is allocated higher addresses beginning with address 00400h. For example, a 1-Kbyte internal
RAM area is allocated addresses 00400h to 007FFh. 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 (SFRs) are allocated addresses 00000h to 002FFh. The peripheral function control
registers are allocated here. All addresses within the SFR, which have nothing allocated are reserved for future use
and cannot be accessed by users.
Memory
0YYYYh
FFFFFh
0FFFFh
002FFh
00000h
00400h
NOTE:
R5F21262SNFP, R5F21262SDFP,
R5F21262SNXXXFP, R5F21262SDXXXFP
R5F21264SNFP, R5F21264SDFP,
R5F21264JFP, R5F21264KFP,
R5F21264SNXXXFP, R5F21264SDXXXFP,
R5F21264JXXXFP, R5F21264KXXXFP
R5F21265SNFP, R5F21265SDFP
R5F21265SNXXXFP, R5F21265SDXXXFP
R5F21266SNFP, R5F21266SDFP,
R5F21266JFP, R5F21266KFP,
R5F21266SNXXXFP, R5F21266SDXXXFP,
R5F21266JXXXFP, R5F21266KXXXFP
0XXXh
R8C/26 Group
Sep 26, 2008
1. The blank regions are reserved. Do not access locations in these regions.
Memory Map of R8C/26 Group
Function Registers
(Refer to 4. Special
(program ROM)
Internal RAM
Internal ROM
Part Number
(SFRs))
SFR
Page 15 of 453
16 Kbytes
24 Kbytes
32 Kbytes
8 Kbytes
Size
0FFDCh
0FFFFh
Internal ROM
Address 0YYYYh
Watchdog timer/oscillation stop detection/voltage monitor
0E000h
0C000h
0A000h
08000h
Undefined instruction
BRK instruction
Address match
Single step
(Reserved)
(Reserved)
Overflow
1.5 Kbytes
1.5 Kbytes
512 bytes
Reset
1 Kbyte
Size
Internal RAM
Address 0XXXXh
005FFh
007FFh
009FFh
009FFh
3. Memory