Description
The R8C/25 Group is supported only for customers who have already adopted these products. The RL78/G14 Group is recommended for new designs.
These MCUs are fabricated using a high-performance silicon gate CMOS process, embedding the R8C/Tiny Series CPU core, and are packaged in a 52-pin molded-plastic LQFP or a 64-pin molded-plastic FLGA. It implements sophisticated instructions for a high level of instruction efficiency. With 1Mb of address space, they are capable of executing instructions at high speed. Furthermore, the R8C/25 Group has on-chip data flash (1KB x 2 blocks). The difference between the R8C/24 Group and R8C/25 Group is only the presence or absence of data flash. Their peripheral functions are the same.
Applications
- Electronic Household Appliances
- Office Equipment
- Audio Equipment
- Consumer Products
| Part Number | Status | Samples | Stock | RoHS | Package | Budgetary Price (USD) | RAM (KB) | Lead Count (#) | Temp. Range (°C) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R5F21254SDFP#V2 | NRND | N/A | Out of Stock | Contact | LQFP | 1ku | $5.18 | 1KB | 52# | -40 to +85 | CHINA | JAPAN |
| R5F21254SDFP#X6 | Obsolete | N/A | Out of Stock | Contact | LQFP | 1KB | 52# | -40 to +85 | |||
| R5F21254SNFP#V2 | NRND | N/A | Out of Stock | Contact | LQFP | 1ku | $4.94 | 1KB | 52# | -20 to +85 | CHINA | JAPAN |
| R5F21254SNFP#X6 | Obsolete | N/A | Out of Stock | Contact | LQFP | 1KB | 52# | -20 to +85 | |||
| R5F21254SNLG#U0 | Obsolete | N/A | Out of Stock | RoHS:EN RoHS:JA | TFLGA | 1KB | 64# | -20 to +85 | |||
| R5F21255SDFP#V2 | Obsolete | N/A | Out of Stock | Contact | LQFP | 2KB | 52# | -40 to +85 | |||
| R5F21255SDFP#X6 | NRND | N/A | Out of Stock | Contact | LQFP | 2KB | 52# | -40 to +85 | |||
| R5F21255SNFP#V2 | NRND | N/A | Out of Stock | Contact | LQFP | 1ku | $4.98 | 2KB | 52# | -20 to +85 | CHINA | JAPAN |
| R5F21255SNFP#X6 | NRND | N/A | Out of Stock | Contact | LQFP | 2KB | 52# | -20 to +85 | |||
| R5F21256SDFP#V2 | NRND | N/A | Out of Stock | Contact | LQFP | 1ku | $5.53 | 2KB | 52# | -40 to +85 | CHINA | JAPAN |
| R5F21256SDFP#X6 | NRND | N/A | Out of Stock | Contact | LQFP | 2KB | 52# | -40 to +85 | |||
| R5F21256SNFP#V2 | NRND | N/A | In Stock | Contact | LQFP | 1ku | $6.05 | 2KB | 52# | -20 to +85 | CHINA | JAPAN |
| R5F21256SNFP#X6 | NRND | N/A | Out of Stock | Contact | LQFP | 1ku | $5.22 | 2KB | 52# | -20 to +85 | CHINA | JAPAN |
| R5F21256SNLG#U0 | Obsolete | N/A | In Stock | RoHS:EN RoHS:JA | TFLGA | 2KB | 64# | -20 to +85 | |||
| R5F21257SDFP#V2 | NRND | N/A | Out of Stock | Contact | LQFP | 1ku | $4.53 | 2.5KB | 52# | -40 to +85 | CHINA | JAPAN |
| R5F21257SDFP#X6 | NRND | N/A | In Stock | Contact | LQFP | 1ku | $4.59 | 2.5KB | 52# | -40 to +85 | CHINA | JAPAN |
| R5F21257SNFP#V2 | NRND | N/A | In Stock | Contact | LQFP | 1ku | $5.29 | 2.5KB | 52# | -20 to +85 | CHINA | JAPAN |
| R5F21257SNFP#X6 | NRND | N/A | Out of Stock | Contact | LQFP | 1ku | $5.36 | 2.5KB | 52# | -20 to +85 | CHINA | JAPAN |
| R5F21258SDFP#V2 | NRND | N/A | Out of Stock | Contact | LQFP | 1ku | $7.19 | 3KB | 52# | -40 to +85 | CHINA | JAPAN |
| R5F21258SDFP#X6 | NRND | N/A | Out of Stock | Contact | LQFP | 3KB | 52# | -40 to +85 | |||
| R5F21258SNFP#V2 | NRND | N/A | In Stock | Contact | LQFP | 1ku | $6.85 | 3KB | 52# | -20 to +85 | CHINA | JAPAN |
| R5F21258SNFP#X6 | NRND | N/A | Out of Stock | Contact | LQFP | 1ku | $5.64 | 3KB | 52# | -20 to +85 | CHINA | JAPAN |
Loading
Filters
Applied Filters
Log in required to subscribe
- Tool News - Note
- Product Change Notice
- Application NoteAI-generated Summary: The document explains how to migrate timer functions from the R8C/36M Group's Timer RB to the RL78/G14's Timer Array Unit (TAU). It details the correspondence between operation modes: timer mode, programmable waveform generation, programmable one-shot generation, and programmable wait one-shot generation. The RL78/G14 uses four 16-bit timers, which can be combined for higher accuracy. Interval timer, PWM output, and one-shot pulse output functions in TAU replicate the R8C/36M Timer RB modes with enhanced flexibility.Related Files:
- Application NoteAI-generated Summary: The document explains how to implement single master control communication using the R8C/35C Group EC bus interface to issue a restart condition. It demonstrates sending and receiving data with a digital color sensor (S11059-02DT) by alternating master transmission and reception. The restart condition allows switching data direction without issuing a stop condition, complying with I²C protocol standards such as 7-bit slave addressing, approximately 357 kHz transfer rate, and single master communication.Related Files:
- Product Change Notice
- Guide
- Product Change Notice
- Document
- Application NoteAI-generated Summary: The document explains how to register and uninstall Call Walker within the High-performance Embedded Workshop (HEW). It guides users to launch HEW without opening a workspace, access the Tools Administration menu, and register the Call Walker tool by specifying the registration file path. After registration, Call Walker version 2.3 appears in the menu. Upon uninstalling HEW, users must manually delete the remaining Call Walker directory. It also provides Renesas Electronics website and contact information for support. The revision history notes the first edition release date.
- Technical Update
- Technical Update
- DatasheetR8C/24, R8C/25 Group DatasheetRECOMMENDED
Recommended Documents (1)
- DatasheetR8C/24, R8C/25 Group DatasheetRECOMMENDED
Datasheets (1)
- Guide
- Guide
- GuideRelated Files:
- Manual - Hardware
Manuals & Guides (5)
- Application NoteAI-generated Summary: The document explains how to migrate timer functions from the R8C/36M Group's Timer RB to the RL78/G14's Timer Array Unit (TAU). It details the correspondence between operation modes: timer mode, programmable waveform generation, programmable one-shot generation, and programmable wait one-shot generation. The RL78/G14 uses four 16-bit timers, which can be combined for higher accuracy. Interval timer, PWM output, and one-shot pulse output functions in TAU replicate the R8C/36M Timer RB modes with enhanced flexibility.Related Files:
- Application NoteAI-generated Summary: The document explains how to implement single master control communication using the R8C/35C Group EC bus interface to issue a restart condition. It demonstrates sending and receiving data with a digital color sensor (S11059-02DT) by alternating master transmission and reception. The restart condition allows switching data direction without issuing a stop condition, complying with I²C protocol standards such as 7-bit slave addressing, approximately 357 kHz transfer rate, and single master communication.Related Files:
- Application NoteAI-generated Summary: The document explains how to register and uninstall Call Walker within the High-performance Embedded Workshop (HEW). It guides users to launch HEW without opening a workspace, access the Tools Administration menu, and register the Call Walker tool by specifying the registration file path. After registration, Call Walker version 2.3 appears in the menu. Upon uninstalling HEW, users must manually delete the remaining Call Walker directory. It also provides Renesas Electronics website and contact information for support. The revision history notes the first edition release date.
- Application NoteAI-generated Summary: The document specifies the serial communication protocols for the R8C/1x and 2x Series microcontrollers in standard serial I/O modes 2 and 3. It details boot program operations including initial settings, communication with a serial programmer, and control commands for flash memory. Communication formats are asynchronous, with defined data transfer structures. Pin assignments and connection examples for both modes are provided. Initial settings cover selecting communication mode based on the MODE pin level after reset and adjusting the bit rate to 9600 bps through a defined handshake process with the serial programmer.
- Application NoteAI-generated Summary: The R8C/25 Group Timer RA operates in Timer Mode by counting an internally generated source with decrement operation. It reloads the count from a register upon underflow and supports programmable divide ratios. The timer starts and stops via specific bits in the TRACR register, and generates interrupts on underflow. Key registers include TRACR, TRAIOC, TRAMR, TRAPRE, and TRA, which control timer operation, I/O functions, mode selection, prescaler, and count values. Writing to these registers affects timer behavior depending on whether counting is active or stopped.Related Files:View More (167)
Application Notes & White Papers (167)
- Product Change Notice
- Product Change Notice
- Product Change Notice
Product Notices (PCN, EOL, etc) (5)
- Technical Update
- Technical Update
- Technical UpdateView More (29)
Errata & Technical Updates (29)
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
- Tool News - Note
Tool News (1)
- Brochure
Marketing Collateral (3)
- Document
- View More (90)
Other (90)
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
Loading
Filters
Applied Filters
Software & Tools
Filter by Type
Filter by Provider
Sample Code
Filter by Application
Filter by Function
Filter by Compiler
Filter by IDE
Simulation Models
Partner Solutions
- IDE and Coding ToolRenesas integrated development environment (IDE) (for SuperH, RX, R8C, M32R, M16C, H8SX, H8S, H8, and 740 families).
- Compiler/AssemblerC/C++ Compiler Package for R8C Family and M16C Family (R32C/M32C/M16C) , * Packed the following three compiler packages : [Content] C Compiler Package for R32C Series, C Compiler Package for M32C Series [M3T-NC308WA], and C/C++ Compiler Package for M16C Series and R8C Family [M3T-NC30WA]. They are bundled with the simulator debugger and High-performance Embedded Workshop.
- EmulatorOn-Chip Debugging Emulator for M16C and H8 families. Available as a flash memory programmer for M16C and 740(QzROM) families also by using with Flash Development Toolkit. Note that the H8 family MCUs support the debugging features and that the 740 family MCUs support only the programming features. * Successor : E8a
- EmulatorOn-Chip Debugging Emulator for R8C, M16C, H8S, H8 and 740 families. E8a is also used as a device programmer for Renesas microcomputers. This product is E8 emulator's successor.
- EmulatorEmulator for M16C Family [Overseas Standards Compliant]. Support for all operating frequencies of M16C.
- Programmer (Unit/SW)On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Flash Development Toolkit]
- Programmer (Unit/SW)On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Flash Development Toolkit] [Support MCU/MPU and devices: SuperH RISC engine, R8C, M16C, H8SX, H8S, H8, 740]
- Programmer (Unit/SW)Flash memory programming software. [Support MCU/MPU and devices: SuperH RISC engine, RX, R8C, M16C, H8SX, H8S, H8, 740]
- Programmer (Unit/SW)Connected with a Flash Programmer, these IC Socket Boards enable reprogramming of the on-chip Memory before mounting.
- Software & Tools - Other
- Software & Tools - Other
- Software & Tools - Other
- Software & Tools - Other
- Software & Tools - Other
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
- IDE and Coding ToolRenesas integrated development environment (IDE) (for SuperH, RX, R8C, M32R, M16C, H8SX, H8S, H8, and 740 families).
- Compiler/AssemblerC/C++ Compiler Package for R8C Family and M16C Family (R32C/M32C/M16C) , * Packed the following three compiler packages : [Content] C Compiler Package for R32C Series, C Compiler Package for M32C Series [M3T-NC308WA], and C/C++ Compiler Package for M16C Series and R8C Family [M3T-NC30WA]. They are bundled with the simulator debugger and High-performance Embedded Workshop.
- EmulatorOn-Chip Debugging Emulator for M16C and H8 families. Available as a flash memory programmer for M16C and 740(QzROM) families also by using with Flash Development Toolkit. Note that the H8 family MCUs support the debugging features and that the 740 family MCUs support only the programming features. * Successor : E8a
- EmulatorOn-Chip Debugging Emulator for R8C, M16C, H8S, H8 and 740 families. E8a is also used as a device programmer for Renesas microcomputers. This product is E8 emulator's successor.View More (28)
Software & Tools (28)
- Sample CodeRelated Files:
- Sample CodeRelated Files:
- Sample CodeRelated Files:
- Sample CodeRelated Files:
- Sample CodeRelated Files:View More (100)
Sample Code (100)
- Model - IBIS
- Model - IBIS
- Model - IBIS
- Model - IBIS
Simulation Models (4)
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
Support Communities
-
software SPI for r8c/1a or r8c/25
can anyone pls post the software spi code for r8c/1a or r8c/25 thanks in advance
Nov 30, 2009 -
R8C/25 data flash library
Hi all, I am looking for data flash library for R8C/25 Family.. Please help thnx
Oct 11, 2014 -
UART in R8C/25
Dear friends,I am a fresher in renesas microcontroller. I am using R8C/25 series microcontroller and I am using starter kit for R8C/25 . I need a sample code for peripheral UART in R8C/25.Thanks,Hareesha
Nov 18, 2009
Knowledge Base
-
(R8C) Are there any hardware precautions for accurate A/D conversion?
... analog input pin so that it is low enough. (Refer to the hardware manual for the calculation method.) Moreover, in order to suppress the influence of the input current at the time of A/D conversion, please add a capacitor to the analog input pin. Example (R8C/25)
Jun 19, 2006 -
Is there a device which has external address space in the R8C Family?
The R8C Family is a single-chip microcontroller. There is no device which has external address space.
Oct 10, 2006 -
Is there a list of the SFRs for the R8C Family applicable to Technical Update No. TN-M16C-55-0006?
Affected registers include: UART0 bit rate register U0BRG UART0 transmit buffer register U0TB UART1 bit rate register U1BRG UART1 transmit buffer register U1TB For details, please refer to the Hardware Manual. If "When read, the value is undefined" or "When read, the content is undefined" is included in the register ...
Dec 26, 2017
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Knowledge Base
Browse our knowledge base for helpful articles, FAQs, and other useful resources.
