My Inquiry
My Account
Renesas R5F21264SDFP#V2
- Part No.:
- R5F21264SDFP#V2
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21264SDFP#V2.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,067
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F21264SDFP#V2 from Renesas Electronics is a 16-bit single-chip microcontroller in the R8C/26 Group, featuring an R8C CPU core, 16 KB flash program memory, 1 KB RAM, and operation across -40°C to +85°C. It integrates a 10-bit 12-channel ADC, dual UARTs, I²C interface, hardware LIN module, four 8-/16-bit timers (RA, RB, RC, RE), and on-chip oscillators (XIN, XCIN, high/low-speed). It targets embedded control in industrial sensors and appliance motor management.
For engineers reviewing the R5F21264SDFP#V2 datasheet, R5F21264SDFP#V2 pinout, R5F21264SDFP#V2 application, or R5F21264SDFP#V2 equivalent, key selection criteria include its D-version temperature grade (-40°C to +85°C), 32-pin LQFP package (PLQP0032GB-A), absence of on-chip data flash (distinguishing it from R8C/27 Group), and support for XCIN/XCOUT real-time clock circuitry.
Technical Context
The R5F21264SDFP#V2 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). Its memory map spans 1 Mbyte, with fixed interrupt vectors at 0FFDCh–0FFFFh and SFRs mapped to 00000h–002FFh.
Peripheral integration includes Timer RE with real-time clock capability (enabled in D version), hardware LIN using Timer RA and UART0, and dual UART channels supporting full-duplex asynchronous communication. The device supports both external crystal (XIN/XOUT) and 32 kHz crystal (XCIN/XCOUT) clock sources, with oscillation-stop detection on XIN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit CISC core with 89 instructions and register bank switching |
| Flash Memory | 16 KB program ROM; no data flash (R8C/26 Group distinction) |
| RAM | 1 KB on-chip SRAM for variables, stack, and subroutine context |
| Operating Temperature | -40°C to +85°C (D version); validated for industrial ambient conditions |
| Supply Voltage | 2.2 V to 5.5 V (5 MHz mode); 3.0 V to 5.5 V (20 MHz mode) |
| ADC | 10-bit successive-approximation A/D converter with 12 analog inputs |
| Timers | Timer RA/RB (8-bit ×2), Timer RC (16-bit input capture/output compare), Timer RE (real-time clock + compare match) |
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 / Ground | Core and I/O supply pins; AVCC/AVSS separately decoupled for ADC noise immunity |
| XIN / XOUT | External clock input / output | Supports ceramic resonator or crystal up to 20 MHz; enables precise timing control |
| XCIN / XCOUT | 32 kHz RTC clock input / output | D-version–specific; enables low-power real-time clock operation without external oscillator |
| P0_0–P0_7 | General-purpose I/O port | 8-bit bidirectional port with individual direction control; AN0–AN7 shared for ADC |
| AN8–AN11 | Analog inputs | Four additional ADC channels accessible via P1_0–P1_3; support sensor signal acquisition |
| UART0 (TXD0/RXD0) | Asynchronous serial interface | Full-duplex communication channel for host MCU or debug interface |
| UART1 (TXD1/RXD1) | Asynchronous serial interface | Second UART for peripheral bridging or LIN physical layer signaling |
| SCL / SDA | I²C bus interface | Standard-mode (100 kbps) I²C master/slave interface for EEPROM or sensor communication |
Key Features
| Feature | Design Value |
|---|---|
| Hardware LIN Module | Integrated LIN 2.0/SAE J2602 support via Timer RA and UART0 - eliminates external transceiver for automotive body electronics |
| Real-Time Clock (RTC) | Timer RE driven by XCIN/XCOUT (32 kHz) - enables calendar/timekeeping in low-power wait/stop modes |
| Low-Power Operation | 0.7 µA stop-mode current (VCC = 3.0 V) - extends battery life in portable or energy-harvested systems |
| On-Chip Oscillators | High-speed (adjustable) and low-speed on-chip oscillators - reduce BOM cost and board space vs. external crystals |
| Interrupt Architecture | 7-level priority, 15 internal + 4 external + 4 software interrupt sources - supports deterministic real-time response |
Applications
| Industrial Sensor Node | Home Appliance Motor Control |
|---|---|
Use Scenario: Standalone temperature/humidity sensor node with wireless telemetry and local display. IC Role / Device Role / Timing Role: Main system controller executing sensor readout, calibration, UART-based data forwarding, and LED status indication. Use Value: Integrated 12-channel ADC and UARTs eliminate external signal conditioning ICs; XCIN-based RTC enables scheduled wake-up to conserve power. |
Use Scenario: Brushless DC motor driver in washing machine drum control subsystem. IC Role / Device Role / Timing Role: Real-time motor commutation sequencer using Timer RC PWM outputs and Hall-effect feedback via P1_0–P1_3. Use Value: Hardware LIN interface allows direct communication with main control board; 20 MHz operation ensures precise 10 µs PWM resolution. |
| Automotive Body Controller | Office Equipment Power Management |
Use Scenario: Door module managing window lift, mirror adjustment, and interior lighting. IC Role / Device Role / Timing Role: LIN slave node interpreting commands from central gateway and driving relays/LEDs via P0/P1 ports. Use Value: Native LIN compliance reduces firmware complexity; -40°C to +85°C rating meets automotive under-hood requirements. |
Use Scenario: Energy-saving sleep/wake coordinator in multifunction printer with USB host and network interfaces. IC Role / Device Role / Timing Role: System supervisor monitoring power rails, detecting user activity via INT0/INT3, and controlling main SoC reset sequencing. Use Value: 0.7 µA stop-mode current and programmable voltage detector enable sub-mW standby; dual UARTs support debug and host handshaking. |
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 | N-version (-20°C to +85°C); identical memory, peripherals, and pinout | Consumer-grade ambient range; unsuitable for extended industrial environments | Select only if operating temperature stays above -20°C and cost sensitivity outweighs thermal margin |
| R5F21274SDFP | R8C/27 Group; adds 2×1 KB data flash (10,000 erase cycles) but same package and core | Enables field firmware updates and parameter storage without external EEPROM | Choose when nonvolatile data logging or bootloader flexibility is required; accepts higher program ROM erase limit (1,000 cycles) |
Compared with R5F21264SNFP, the R5F21264SDFP#V2 offers wider temperature tolerance for harsher environments; compared with R5F21274SDFP, it trades data flash endurance for lower cost and simpler flash management in fixed-function deployments.
Availability
R5F21264SDFP#V2 is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance motor control, and automotive body electronics requiring stable component supply over extended production lifecycles.
Supply support for R5F21264SDFP#V2 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 R5F21264SDFP#V2, was designed for cost-sensitive, low-power embedded control in industrial and consumer equipment where reliability across extended temperature ranges is critical.
FAQ
What is the maximum operating frequency of the R5F21264SDFP#V2?
The R5F21264SDFP#V2 achieves a minimum instruction execution time of 50 ns when running at 20 MHz with VCC between 3.0 V and 5.5 V. This corresponds to a maximum sustained core clock frequency of 20 MHz using the XIN crystal oscillator circuit. Higher frequencies are not supported per the electrical specifications.
Does the R5F21264SDFP#V2 include on-chip data flash memory?
No, the R5F21264SDFP#V2 belongs to the R8C/26 Group and contains only 16 KB of program flash memory with no dedicated data flash. Data retention requires external EEPROM or use of program flash sectors with appropriate wear-leveling - unlike the R8C/27 Group (e.g., R5F21274SDFP), which integrates two 1 KB data flash blocks.
Which pins support the real-time clock function on the R5F21264SDFP#V2?
The R5F21264SDFP#V2 uses pins 4 (XCOUT/P4_7) and 6 (XCIN/P4_6) for the 32 kHz real-time clock oscillator circuit. These pins are functional only in the D and N versions, and the RTC is implemented via Timer RE - confirmed in the device's electrical characteristics and pin function tables.
Can the R5F21264SDFP#V2 operate at 2.2 V supply voltage?
Yes, the R5F21264SDFP#V2 supports VCC = 2.2 V to 5.5 V when operating at 5 MHz (minimum instruction time 200 ns). At this voltage, the device must be configured for the lowest clock speed mode; 20 MHz operation requires VCC ≥ 3.0 V per the datasheet's electrical characteristics table.
How many analog input channels does the R5F21264SDFP#V2 ADC support?
The R5F21264SDFP#V2 integrates a single 10-bit successive-approximation ADC supporting 12 analog input channels: AN0–AN7 on Port P0, and AN8–AN11 on Port P1 pins P1_0–P1_3. All channels share one conversion unit with configurable sampling timing and trigger sources.
R5F21264SDFP#V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/2x/26
- Packaging:
- Tray
- 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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21264SDFP#V2 FAQ
1.How can I place an order for R5F21264SDFP#V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21264SDFP#V2 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 R5F21264SDFP#V2 reliable?
The price and inventory of R5F21264SDFP#V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21264SDFP#V2 is usually 5 days.
3.What payment methods are accepted for R5F21264SDFP#V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21264SDFP#V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21264SDFP#V2?
R5F21264SDFP#V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21264SDFP#V2 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 R5F21264SDFP#V2?
For technical support, including R5F21264SDFP#V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21264SDFP#V2 requirements.
6.How does Aetrix verify that R5F21264SDFP#V2 is sourced from the original manufacturer or authorized distributors?
All R5F21264SDFP#V2 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 R5F21264SDFP#V2 meets industry standards.
7.What is the process for return or replacement of R5F21264SDFP#V2?
All R5F21264SDFP#V2 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21264SDFP#V2, 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 R5F21264SDFP#V2 part is unused and in its original packaging.
Return procedure for R5F21264SDFP#V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21264SDFP#V2 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…
