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Renesas R5F10267ASP#55
- Part No.:
- R5F10267ASP#55
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F10267ASP#55.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 20LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,130
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Product details
Overview
R5F10267ASP#55 from Renesas Electronics is a 20-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller with 4 KB code flash, 2 KB data flash, and 256 B RAM, operating from 1.8 V to 5.5 V at up to 24 MHz (31 DMIPS), featuring 11-channel 10-bit ADC, dual CSI/I²C interfaces, and HALT/STOP/SNOOZE power modes - deployed in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F10267ASP#55 datasheet, R5F10267ASP#55 pinout, R5F10267ASP#55 application, or R5F10267ASP#55 equivalent, key selection criteria include its 2 KB on-chip data flash for EEPROM emulation, ±1.0% high-speed on-chip oscillator accuracy over –20 to +85°C, CRC hardware accelerator, and 2-channel DMA - all within a 4.4 × 6.5 mm LSSOP-20 package.
Technical Context
The R5F10267ASP#55 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction timing (0.04167 µs min @ 24 MHz). It integrates a dedicated low-speed on-chip oscillator (15 kHz) for watchdog operation and supports peripheral I/O redirection via PIOR register for flexible pin assignment.
Its power management includes on-chip POR, 12-level voltage detector (LVD), and three ultra-low-power modes: HALT (63 μA/MHz active current), STOP (0.23 μA typical), and SNOOZE (background data flash write during low-power CPU sleep). The device uses HS mode for main clock (1–24 MHz) and LS mode for low-voltage operation (1–8 MHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 8×8-bit register banks ×4 |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3/5 V logic and battery-powered operation down to single-cell Li-ion or alkaline |
| Flash Memory | 4 KB code flash + 2 KB data flash - supports self-programming with flash shield window and background operation (BGO) for real-time firmware updates |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference and temperature sensor - suitable for analog sensor acquisition without external references |
| Timers | Four 16-bit TAU channels + 12-bit interval timer + windowed watchdog - provides PWM generation, precise timing intervals, and fail-safe reset capability |
| Serial Interfaces | 1 UART, 2 CSI (SPI-compatible), 2 simplified I²C - enables concurrent communication with sensors, displays, and host controllers |
| Power Modes | HALT (63 μA/MHz), STOP (0.23 μA), SNOOZE - extends battery life in intermittent-sensing applications such as smart meters and IoT endpoints |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock/Buzzer Output / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial communication or precision timing output; selectable via PIOR |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Input / UART RX / I²C Data / Debug RX | Shared serial receive path for multiple protocols; TOOLRxD enables in-circuit debugging without external adapter |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Output / UART TX / Debug TX | Unified transmit path for UART, SPI, and debug - simplifies PCB routing and reduces external component count |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt Pin 2 | Hardware timer capture/compare and external interrupt trigger - supports encoder input or pulse-width measurement |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt Pin 3 | Dual timer channel with interrupt capability - enables dual-edge timing or independent PWM outputs |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / Positive Analog Reference | Primary analog reference input; AVREFP sets full-scale range for ADC - critical for precision sensor signal conditioning |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / Negative Analog Reference | Differential reference pair with P20 - enables true differential ADC measurements and noise rejection |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input with internal sample-and-hold - supports simultaneous sampling across multiple channels |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Additional analog input with shared VDD-supplied reference - used for auxiliary sensor monitoring |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface | Supports capacitive touch key scanning and JTAG/SWD debug interface - eliminates need for separate debug header |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Output / I²C Data / Timer Input 2 / Timer Output 2 / Interrupt Pin 1 | High-density multi-function pin enabling mixed-signal timing, communication, and sensing in compact layouts |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer Input 3 / Timer Output 3 | Second SPI/I²C interface clock with timer capture - supports daisy-chained sensors or dual-bus isolation |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock A / UART TX (remapped) | Secondary I²C clock with key scan capability - allows shared pins for user interface and bus communication |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data A / UART RX (remapped) | Secondary I²C data line with key return function - reduces pin count for HMI-integrated designs |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Input / Timer Input / Interrupt | Crystal oscillator input with fallback timer/interrupt function - ensures system timing continuity during crystal fault |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Output / External Clock / Timer Input / Interrupt | Crystal output or external clock input with timer/interrupt backup - supports flexible clock source selection |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Input / Reset Input | Hardware reset input with SPI data and key scan functions - enables single-pin system recovery and diagnostics |
| P137/INTP0 | Port 13 bit 7 / Interrupt Pin 0 | Dedicated external interrupt input - used for wake-up from STOP mode or event-driven processing |
| VDD | Power Supply | Single 1.8–5.5 V supply - eliminates need for external regulators in multi-rail systems |
| VSS | Ground | Common reference for analog/digital domains - requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 63 μA/MHz active current and 0.23 μA STOP mode - extends coin-cell battery life to >10 years in periodic-sensing applications |
| On-chip data flash (2 KB) | 1,000,000 write cycles with background operation (BGO) - enables robust parameter storage and field firmware updates without halting execution |
| Hardware CRC accelerator | Full CRC-16/CCITT calculation in one instruction cycle - accelerates secure boot, OTA integrity checks, and communication protocol checksums |
| Peripheral I/O redirection (PIOR) | Dynamic remapping of up to 12 peripheral functions across 10 pins - simplifies PCB layout and enables pin reuse across product variants |
| RAM guard & SFR guard | Hardware memory protection against accidental overwrite - prevents runtime corruption of critical variables and control registers |
| Multi-voltage I/O | N-ch open-drain I/O with 6 V tolerance and 1.8/2.5/3.3 V logic compatibility - enables direct interfacing with legacy and mixed-voltage peripherals |
Applications
| Smart Home Sensor Hub | Industrial Temperature Controller |
|---|---|
Use Scenario: Compact wireless node aggregating temperature, humidity, and motion data from multiple analog and digital sensors. IC Role / Device Role / Timing Role: Central MCU managing sensor polling, ADC conversion, data fusion, BLE/Wi-Fi co-processor interface, and ultra-low-power sleep scheduling. Use Value: 2 KB data flash stores calibration coefficients and event logs; ±1.0% oscillator accuracy ensures reliable time-stamping; 11-channel ADC eliminates external multiplexers. |
Use Scenario: DIN-rail mounted controller regulating heating elements using thermistor feedback and PID computation. IC Role / Device Role / Timing Role: Real-time control unit executing closed-loop algorithms, driving SSR outputs, and communicating via Modbus RTU over UART. Use Value: Four 16-bit TAU channels generate precise PWM for heater duty-cycle control; hardware CRC validates Modbus frames; STOP mode reduces standby power to <1 µW. |
| Portable Medical Monitor | Automotive Body Control Module (BCM) Subsystem |
Use Scenario: Battery-powered wearable measuring ECG, SpO₂, and respiration rate with clinical-grade accuracy. IC Role / Device Role / Timing Role: Signal acquisition MCU performing analog front-end conditioning, oversampled ADC, digital filtering, and Bluetooth LE packetization. Use Value: Internal 1.45 V reference and temperature sensor enable auto-calibration; SNOOZE mode allows continuous data flash writes during low-power CPU sleep; 20-pin LSSOP fits tight form factors. |
Use Scenario: Secondary control unit managing interior lighting, door locks, and window motors in entry-level vehicles. IC Role / Device Role / Timing Role: Dedicated subsystem MCU handling LIN bus communication, GPIO expansion, and PWM dimming for LED lighting. Use Value: Dual CSI/I²C interfaces connect to LIN transceiver and ambient light sensor; 2-channel DMA offloads UART/LIN data transfers; -40 to +85°C rating meets automotive AEC-Q100 Class 2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10268ASP#55 | 8 KB code flash, 512 B RAM, same 20-pin LSSOP package and peripheral set | Higher memory capacity required for complex protocol stacks or larger firmware images | Select when firmware size exceeds 4 KB or additional RAM is needed for buffering or RTOS tasks |
| R5F10367ASP#55 | No data flash, no CRC, no DMA, ±5.0% oscillator accuracy, same 4 KB flash and 256 B RAM | Cost-sensitive consumer applications where EEPROM emulation and hardware safety features are not required | Choose for price-optimized designs lacking field update needs or functional safety requirements |
Compared with R5F10268ASP#55, the R5F10267ASP#55 offers lower memory cost and footprint efficiency; versus R5F10367ASP#55, it delivers deterministic data retention, secure boot support via CRC, and tighter timing control - making it optimal for upgradable, safety-aware embedded systems.
Availability
R5F10267ASP#55 is available at Aetrix Electronics and suitable for smart home sensor hubs, portable medical monitors, and industrial temperature controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F10267ASP#55 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and resource-constrained embedded applications - emphasizing energy efficiency, integrated analog peripherals, and simplified development.
FAQ
What is the maximum operating frequency and corresponding DMIPS performance of the R5F10267ASP#55?
The R5F10267ASP#55 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. This benchmark reflects integer instruction throughput under standard conditions (VDD = 3.3 V, TA = 25°C) and is validated per the RL78/G12 specification R01DS0193EJ0250. Its minimum instruction execution time is 0.04167 µs at 24 MHz, enabling responsive real-time control in the R5F10267ASP#55.
Does the R5F10267ASP#55 include on-chip data flash memory, and what are its endurance and voltage requirements?
Yes, the R5F10267ASP#55 integrates 2 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) and supports background operation (BGO) for concurrent program execution during rewrites. It operates across the full supply range of 1.8 V to 5.5 V, eliminating the need for voltage boost circuits during data logging - a key differentiator confirmed in the R5F10267ASP#55 datasheet section 1.1.
What power-saving modes does the R5F10267ASP#55 support, and what are their typical current draws?
The R5F10267ASP#55 supports HALT (63 μA/MHz active current), STOP (0.23 μA typical), and SNOOZE modes. In STOP mode, only the low-speed oscillator and RTC remain active; SNOOZE enables data flash writes while CPU sleeps. These values are measured at VDD = 3.0 V, TA = 25°C per R01DS0193EJ0250 Rev.2.50, and define the R5F10267ASP#55's suitability for multi-year battery operation.
How many analog input channels and what ADC resolution does the R5F10267ASP#55 provide?
The R5F10267ASP#55 features an 11-channel, 10-bit successive-approximation ADC with internal 1.45 V reference voltage and integrated temperature sensor. Channels ANI0–ANI3 and ANI16–ANI22 are accessible on the 20-pin LSSOP package, and the ADC supports both single-ended and differential (ANI0/ANI1) configurations - all specified in the R5F10267ASP#55 electrical characteristics table (page 17).
Is the R5F10267ASP#55 pin-compatible with other RL78/G12 family members in the same package?
Yes, the R5F10267ASP#55 shares identical pinout and package (LSSOP-20) with all R5F102xxASP and R5F103xxASP variants, including R5F10268ASP#55 and R5F10367ASP#55. Function mapping is consistent across the family, though peripheral availability (e.g., data flash, CRC, DMA) varies by part number - verified in the RL78/G12 pin configuration diagrams (pages 7–9) and R5F10267ASP#55 ordering matrix.
R5F10267ASP#55 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 14
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 11x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10267ASP#55 FAQ
1.How can I place an order for R5F10267ASP#55 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10267ASP#55 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 R5F10267ASP#55 reliable?
The price and inventory of R5F10267ASP#55 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10267ASP#55 is usually 5 days.
3.What payment methods are accepted for R5F10267ASP#55?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10267ASP#55 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10267ASP#55?
R5F10267ASP#55 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10267ASP#55 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 R5F10267ASP#55?
For technical support, including R5F10267ASP#55 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10267ASP#55 requirements.
6.How does Aetrix verify that R5F10267ASP#55 is sourced from the original manufacturer or authorized distributors?
All R5F10267ASP#55 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 R5F10267ASP#55 meets industry standards.
7.What is the process for return or replacement of R5F10267ASP#55?
All R5F10267ASP#55 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10267ASP#55, 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 R5F10267ASP#55 part is unused and in its original packaging.
Return procedure for R5F10267ASP#55:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10267ASP#55 Tags
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