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Renesas R5F21276SYFP#X6
- Part No.:
- R5F21276SYFP#X6
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21276SYFP#X6.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,127
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Product details
Overview
R5F21276SYFP#X6 from Renesas Electronics is a 16-bit R8C/27 Group single-chip microcontroller with 32 KB flash program memory, 1.5 KB RAM, and dual 1 KB data flash blocks. It features a 20 MHz max CPU clock (50 ns min instruction time), 12-channel 10-bit ADC, hardware LIN module, and operates from 2.2–5.5 V across –40 to +85°C ambient. It targets embedded control in office equipment and consumer appliances requiring nonvolatile data logging.
For engineers reviewing the R5F21276SYFP#X6 datasheet, R5F21276SYFP#X6 pinout, R5F21276SYFP#X6 application, or R5F21276SYFP#X6 equivalent, key selection criteria include its dual-block data flash endurance (10,000 erase/write cycles), integrated LIN physical layer support via UART0+TimerRA, real-time clock capability (Timer RE), low-power stop mode (0.7 µA at 3.0 V), and 32-pin LQFP package compatibility with legacy R8C/26 designs.
Technical Context
The R5F21276SYFP#X6 implements the R8C CPU core with 89 fundamental instructions and 1 Mbyte unified address space. Its memory subsystem includes 32 KB on-chip flash ROM and two independent 1 KB data flash blocks-enabling simultaneous code execution and data logging without erasing program memory.
Peripheral integration includes UART0/UART1, I²C bus interface, clock-synchronous serial I/O with chip select, 8-bit Timer RA/RB, 16-bit Timer RC with input capture/output compare, and Timer RE with real-time clock and compare match function. The hardware LIN module combines UART0 and TimerRA for ISO 9141-2/KWP2000 compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions and 20 MHz max operation (50 ns min instruction time) |
| Memory | 32 KB flash program ROM + 1.5 KB RAM + dual 1 KB data flash blocks (10,000 erase/write cycles) |
| ADC | 10-bit successive-approximation A/D converter with 12 analog inputs and internal reference support |
| Timers | Timer RA/RB (8-bit × 2), Timer RC (16-bit input capture/output compare), Timer RE (RTC + compare match) |
| Serial Interfaces | 2 UART channels, 1 I²C bus interface, 1 clock-synchronous serial I/O with chip select, 1 hardware LIN channel |
| Supply & Temp | 2.2–5.5 V operating voltage; –40 to +85°C industrial temperature range (D version) |
| Power Modes | Wait mode: 2.0 µA @ 3.0 V / 32 kHz XCIN; Stop mode: 0.7 µA @ 3.0 V |
Pinout & Package
Package: 32-pin molded-plastic LQFP (PLQP0032GB-A, 7 mm × 7 mm, 0.8 mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | General-purpose I/O / ADC inputs AN0–AN7 | 8-bit port with individual direction control; all pins serve as analog inputs for 10-bit ADC |
| P1_0–P1_7 | General-purpose I/O / KI0–KI3 / AN8–AN11 | 8-bit port supporting key interrupt inputs and four additional ADC channels |
| P3_1, P3_3–P3_7 | GPIO / INT3 / TRBO / SSO / SCL / SDA / RXD1 / TXD1 | Multiplexed functions including I²C, UART1, timer outputs, and external interrupts |
| P4_2, P4_5–P4_7 | VREF / INT0 / XIN/XCIN / XOUT/XCOUT / Input-only | Voltage reference input for ADC; dedicated crystal/resonator pins; three input-only pins |
| P5_3, P5_4 | TRCIOC / TRCIOD | Timer RC input-capture/output-compare pins supporting PWM generation and edge detection |
| RESET, MODE | Reset input / Mode configuration | Active-low asynchronous reset; MODE tied to VCC via resistor to enable normal operation |
| VCC/AVCC, VSS/AVSS | Digital/analog power supply | Separate analog and digital power domains with decoupling capacitor requirement on AVCC–AVSS |
Key Features
| Feature | Design Value |
|---|---|
| Dual-block data flash | Two independent 1 KB data flash blocks enable wear-leveling and atomic data updates without halting program execution |
| Hardware LIN support | Integrated LIN transceiver logic using UART0 and TimerRA eliminates need for external LIN PHY in automotive body electronics |
| Real-time clock (RTC) | Timer RE provides calendar/timekeeping with 32 kHz XCIN input and compare-match interrupt for periodic wake-up |
| Low-power operation | 0.7 µA stop mode current enables battery-powered applications with multi-year standby life |
| 12-channel 10-bit ADC | Simultaneous sampling not supported, but configurable trigger sources (timer, software) allow precise sensor acquisition timing |
Applications
| Office Equipment Control | Consumer Appliance Interface |
|---|---|
Use Scenario: Embedded controller in multifunction printers managing paper feed, toner sensing, and panel display. IC Role / Device Role / Timing Role: Main system MCU executing real-time motor control loops, interpreting button presses, and driving segmented LCD via GPIO. Use Value: Dual data flash blocks store calibration offsets and usage counters independently of firmware, enabling field updates without data loss. |
Use Scenario: Smart microwave oven with touch-sensitive UI, cooking profile storage, and thermal monitoring. IC Role / Device Role / Timing Role: Central controller handling keypad scanning, 10-bit ADC-based temperature feedback, and relay timing for magnetron activation. Use Value: Hardware LIN interface simplifies communication with remote display modules, reducing BOM cost versus discrete UART+LIN transceiver solutions. |
| Industrial Sensor Node | Automotive Body Control |
Use Scenario: Battery-powered environmental monitor logging temperature/humidity every 10 minutes. IC Role / Device Role / Timing Role: Low-power data logger using Timer RE RTC to wake from stop mode, sample sensors via ADC, and write to data flash. Use Value: 0.7 µA stop mode current extends CR2032 battery life beyond 5 years while maintaining accurate timekeeping. |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: LIN slave node communicating with central body controller over single-wire LIN bus using hardware protocol engine. Use Value: Integrated LIN reduces component count and PCB area versus external transceiver + MCU solutions, meeting AEC-Q100 Class 2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21276SDFP | Same core, memory, peripherals; differs only in marking (no #X6 suffix) and packaging (standard FP vs. YFP tape-and-reel variant) | Identical functional behavior; YFP denotes embossed carrier tape for automated assembly | Select R5F21276SYFP#X6 for high-volume SMT production requiring JEDEC-standard tape format. |
| R5F21274SDFP | 16 KB program flash (vs. 32 KB), same 1.5 KB RAM, identical data flash, timers, ADC, and LIN capability | Suitable where firmware size < 16 KB and cost optimization is prioritized over future code expansion headroom | Choose R5F21274SDFP when application firmware fits within 16 KB and BOM cost reduction is critical. |
Compared with R5F21276SDFP, the R5F21276SYFP#X6 offers identical electrical and functional performance but ships in JEDEC-compliant embossed tape for pick-and-place compatibility; versus R5F21274SDFP, it doubles program memory while retaining full peripheral set and data flash endurance-enabling feature-rich firmware without sacrificing reliability.
Availability
R5F21276SYFP#X6 is available at Aetrix Electronics and suitable for office equipment control, consumer appliance interface, and industrial sensor node applications requiring stable component supply and long-term industrial temperature support.
Supply support for R5F21276SYFP#X6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The R8C/27 Group, including R5F21276SYFP#X6, was designed for cost-sensitive embedded control applications demanding robust data retention, low-power operation, and integrated communication interfaces like LIN and I²C.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for R5F21276SYFP#X6?
R5F21276SYFP#X6 supports up to 20 MHz CPU operation at VCC = 3.0–5.5 V. At lower frequencies-10 MHz and 5 MHz-it operates down to 2.7 V and 2.2 V respectively, enabling flexible power supply design in battery-powered systems. The R5F21276SYFP#X6 datasheet specifies these ratings under the Electrical Characteristics section.
Does R5F21276SYFP#X6 include hardware support for LIN communication?
Yes, R5F21276SYFP#X6 integrates a hardware LIN module combining UART0 and TimerRA to implement ISO 9141-2/KWP2000 physical layer signaling. This eliminates external transceiver components and reduces system cost and board space in automotive body electronics applications using R5F21276SYFP#X6.
How many data flash blocks does R5F21276SYFP#X6 have, and what is their endurance rating?
R5F21276SYFP#X6 contains two independent 1 KB data flash blocks, each rated for 10,000 erase/write cycles. This architecture allows one block to be written while the other remains active for code execution, supporting reliable nonvolatile parameter storage in R5F21276SYFP#X6-based systems.
What is the purpose of the XCIN/XCOUT pins on R5F21276SYFP#X6, and which versions support them?
XCIN/XCOUT provide a 32 kHz crystal oscillator input for Timer RE's real-time clock function. These pins are supported only on N and D versions of the R8C/27 Group; the R5F21276SYFP#X6 is a D-version part and fully supports this low-power RTC clock source.
Can R5F21276SYFP#X6 operate in ultra-low-power modes, and what are the typical current values?
Yes, R5F21276SYFP#X6 supports multiple low-power modes: wait mode draws 2.0 µA at 3.0 V with 32 kHz XCIN active, and stop mode consumes just 0.7 µA at 3.0 V. These values are measured under specified conditions and enable multi-year battery life in R5F21276SYFP#X6-based portable devices.
R5F21276SYFP#X6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/27
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- LED, POR, Voltage Detect, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21276SYFP#X6 FAQ
1.How can I place an order for R5F21276SYFP#X6 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21276SYFP#X6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F21276SYFP#X6 reliable?
The price and inventory of R5F21276SYFP#X6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21276SYFP#X6 is usually 5 days.
3.What payment methods are accepted for R5F21276SYFP#X6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21276SYFP#X6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21276SYFP#X6?
R5F21276SYFP#X6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21276SYFP#X6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F21276SYFP#X6?
For technical support, including R5F21276SYFP#X6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21276SYFP#X6 requirements.
6.How does Aetrix verify that R5F21276SYFP#X6 is sourced from the original manufacturer or authorized distributors?
All R5F21276SYFP#X6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F21276SYFP#X6 meets industry standards.
7.What is the process for return or replacement of R5F21276SYFP#X6?
All R5F21276SYFP#X6 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21276SYFP#X6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F21276SYFP#X6 part is unused and in its original packaging.
Return procedure for R5F21276SYFP#X6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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