My Inquiry
My Account
Renesas R5F21265SNFP#X6
- Part No.:
- R5F21265SNFP#X6
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21265SNFP#X6.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,854
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F21265SNFP#X6 from Renesas Electronics is a 16-bit R8C/26 Group single-chip microcontroller with 24 KB flash ROM, 1.5 KB RAM, 12-channel 10-bit A/D converter, UART0/UART1 serial interfaces, and hardware LIN module - designed for embedded control in consumer and industrial appliances requiring compact footprint and low-power operation.
For engineers reviewing the R5F21265SNFP#X6 datasheet, R5F21265SNFP#X6 pinout, R5F21265SNFP#X6 application, or R5F21265SNFP#X6 equivalent, key selection factors include its 32-pin LQFP (PLQP0032GB-A) package, -20 to +85°C N-version temperature grade, 2.2–5.5 V supply range, real-time clock support via Timer RE, and integrated I²C bus interface.
Technical Context
The R5F21265SNFP#X6 implements the R8C CPU core with 89 fundamental instructions and executes at 50 ns minimum instruction time (20 MHz XIN, 3.0–5.5 V). It integrates three independent clock generation circuits: XIN-based crystal/resonator oscillator, high-speed/low-speed on-chip oscillators (with frequency adjustment), and XCIN/XCOUT 32 kHz RTC oscillator (N/D version only).
Peripheral integration includes Timer RA/RB (8-bit × 2), Timer RC (16-bit input capture/output compare), Timer RE (real-time clock + compare match), two UARTs, one I²C bus interface, one clock-synchronous serial I/O with chip select, and hardware LIN transceiver using Timer RA and UART0 - all mapped to 25 I/O pins and 3 dedicated input-only pins in a single-chip configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions and register bank switching |
| Flash ROM / RAM | 24 KB program flash + 1.5 KB SRAM - sufficient for mid-complexity appliance firmware with data buffering |
| A/D Converter | 10-bit resolution × 12 channels - supports analog sensor monitoring across multiple subsystems |
| Serial Interfaces | UART0 + UART1 + I²C + LIN (hardware) - enables multi-protocol communication without external transceivers |
| Timers | Timer RA/RB (8-bit), Timer RC (16-bit input capture/compare), Timer RE (RTC + compare match) |
| Supply Voltage | 2.2–5.5 V - compatible with both 3.3 V and 5 V system rails, including battery-backed operation |
| Operating Temperature | -20°C to +85°C (N version) - qualified for indoor consumer and office equipment environments |
Pinout & Package
Package: 32-pin molded-plastic LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply input / ground | Primary digital power domain (2.2–5.5 V); AVCC/AVSS required for A/D reference stability |
| RESET | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and registers; internal POR active |
| XIN / XOUT | Crystal/resonator oscillator I/O | Supports 5–20 MHz external timing source; on-chip feedback resistor enables standalone crystal use |
| P0_0–P0_7 | General-purpose I/O port | 8-bit bidirectional port with individual direction control; P0_0–P0_7 serve as A/D inputs AN7–AN0 |
| AN0–AN11 | Analog input terminals | 12 dedicated analog input pins mapped across P0, P1, and P3 - no external mux required |
| TXD0 / RXD0 | UART0 transmit/receive | Full-duplex asynchronous serial interface; supports baud rates up to 1 Mbps at 20 MHz clock |
| SCL / SDA | I²C bus clock/data | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C master/slave interface |
| TREO | Timer RE output | Real-time clock tick output or compare match signal - usable for periodic wake-up or event timing |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Integrated LIN 2.0/SAE J2602 transceiver using Timer RA and UART0 - eliminates external LIN PHY in automotive body electronics |
| Low-Power Modes | Wait mode (2.0 µA @ 3.0 V, 32 kHz XCIN) and stop mode (0.7 µA @ 3.0 V) - extends battery life in portable devices |
| On-Chip Oscillators | High-speed and low-speed on-chip oscillators with frequency adjustment - reduces BOM cost and board space vs. external crystals |
| LED Drive Capability | P1_0–P1_7 support LED sink/source drive (N/D versions) - enables direct panel illumination without external drivers |
| Interrupt Architecture | 7 priority levels, 15 internal + 4 external + 4 software interrupt sources - supports deterministic real-time response in multi-task systems |
Applications
| Home Appliance Control | Office Equipment |
|---|---|
Use Scenario: Microcontroller in washing machine main control board managing motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: Central system controller executing real-time motor sequencing, ADC sampling of pressure sensors, and UART communication with display module. Use Value: Integrated 12-channel ADC and dual UART eliminate external signal conditioning and level-shifting ICs, reducing component count by ≥3. |
Use Scenario: Embedded controller in multifunction printer handling paper feed, toner monitoring, and USB-to-parallel bridge logic. IC Role / Device Role / Timing Role: Peripheral coordinator managing parallel port handshaking, I²C-based toner EEPROM reads, and real-time job scheduling via Timer RE. Use Value: Hardware LIN and I²C interfaces enable direct connection to toner cartridges and status LEDs without protocol translation ICs. |
| Audio Equipment | Industrial Sensor Node |
Use Scenario: Digital audio mixer front-panel controller managing encoder inputs, LED bar graphs, and volume DAC updates. IC Role / Device Role / Timing Role: User interface processor performing key scan (KI0–KI3), LED drive (P1_0–P1_7), and SPI-compatible serial I/O to audio codec. Use Value: Dedicated LED drive ports and key interrupt inputs reduce GPIO overhead and firmware polling latency by >90%. |
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality with wireless upload. IC Role / Device Role / Timing Role: Low-power data acquisition unit sampling analog sensors via 10-bit ADC, storing results in RAM, and waking periodically via Timer RE to transmit over UART. Use Value: Sub-1 µA stop mode current and integrated RTC allow 2+ year battery life on CR2032 with 1-minute wake intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21264SNFP | 16 KB flash, 1 KB RAM - 8 KB less program memory, identical peripherals and pinout | Suitable for simpler firmware with smaller code footprint; same thermal and electrical specs | Select when application firmware fits within 16 KB and cost optimization is prioritized |
| R5F21275SNFP | 24 KB flash + 2 KB data flash (1 KB × 2 blocks) - adds non-volatile parameter storage capability | Required where field-updatable calibration data or user settings must persist across power cycles | Choose when EEPROM-like data retention is needed without external serial flash |
Compared with R5F21265SNFP#X6, R5F21264SNFP offers lower memory capacity at reduced cost for less complex tasks, while R5F21275SNFP adds data flash for configuration storage - neither is pin-compatible with R5F21265SNFP#X6 due to different memory architecture and programming voltage requirements.
Availability
R5F21265SNFP#X6 is available at Aetrix Electronics and suitable for home appliance control, office equipment automation, and audio equipment firmware development requiring stable component supply and long-term industrial availability.
Supply support for R5F21265SNFP#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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.
The R8C/26 Group, including R5F21265SNFP#X6, was engineered for cost-sensitive, low-power embedded applications in consumer electronics and industrial controls - emphasizing integration, code efficiency, and qualification for commercial temperature ranges.
FAQ
What is the maximum operating frequency and corresponding supply voltage for R5F21265SNFP#X6?
R5F21265SNFP#X6 achieves a minimum instruction execution time of 50 ns at 20 MHz XIN frequency, requiring VCC = 3.0–5.5 V. At lower frequencies (10 MHz, 5 MHz), it supports down to 2.2 V supply - enabling flexible power rail design across 3.3 V and 5 V systems. The high-speed on-chip oscillator also supports adjustable frequency tuning without external components.
Does R5F21265SNFP#X6 include an integrated real-time clock (RTC)?
Yes, R5F21265SNFP#X6 implements a real-time clock function within Timer RE, supporting calendar/timekeeping and compare-match interrupts. This requires the N or D version (which includes XCIN/XCOUT pins) to connect a 32.768 kHz crystal; the RTC operates independently in wait/stop modes with typical current draw of 2.0 µA (wait) or 0.7 µA (stop) at 3.0 V.
Can R5F21265SNFP#X6 directly drive LEDs without external circuitry?
Yes, R5F21265SNFP#X6 supports LED drive on P1_0 through P1_7 in N and D versions - these pins provide configurable sink/source current suitable for common-anode or common-cathode LED arrays. No external driver transistors or current-limiting resistors are required for basic indicator applications, simplifying front-panel design.
What serial communication interfaces are integrated into R5F21265SNFP#X6?
R5F21265SNFP#X6 integrates UART0, UART1, I²C bus interface, clock-synchronous serial I/O with chip select (SSI/SCS/SSCK/SSO), and a hardware LIN module (using Timer RA and UART0). These interfaces share pins flexibly via software configuration, enabling concurrent multi-protocol connectivity without external bridge ICs.
Is R5F21265SNFP#X6 pin-compatible with other R8C/26 Group MCUs like R5F21264SNFP or R5F21266SNFP?
Yes, R5F21265SNFP#X6 shares identical pinout, package (PLQP0032GB-A), and peripheral mapping with all 32-pin R8C/26 Group variants including R5F21264SNFP and R5F21266SNFP. Firmware and PCB layout are interchangeable across this family - only flash size (24 KB vs. 16 KB/32 KB) and RAM differ, with no impact on I/O or timing behavior.
R5F21265SNFP#X6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/26
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 24KB (24K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21265SNFP#X6 FAQ
1.How can I place an order for R5F21265SNFP#X6 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21265SNFP#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 R5F21265SNFP#X6 reliable?
The price and inventory of R5F21265SNFP#X6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21265SNFP#X6 is usually 5 days.
3.What payment methods are accepted for R5F21265SNFP#X6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21265SNFP#X6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21265SNFP#X6?
R5F21265SNFP#X6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21265SNFP#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 R5F21265SNFP#X6?
For technical support, including R5F21265SNFP#X6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21265SNFP#X6 requirements.
6.How does Aetrix verify that R5F21265SNFP#X6 is sourced from the original manufacturer or authorized distributors?
All R5F21265SNFP#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 R5F21265SNFP#X6 meets industry standards.
7.What is the process for return or replacement of R5F21265SNFP#X6?
All R5F21265SNFP#X6 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21265SNFP#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 R5F21265SNFP#X6 part is unused and in its original packaging.
Return procedure for R5F21265SNFP#X6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21265SNFP#X6 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
