Renesas R5F1006CASP#X0
- Part No.:
- R5F1006CASP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F1006CASP#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 20LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F1006CASP#X0 from Renesas is a 20-pin LSSOP-packaged RL78/G13 16-bit microcontroller with 16 KB flash, 2 KB RAM, and 4 KB data flash, operating from 1.6 V to 5.5 V. It delivers 41 DMIPS at 32 MHz, features ultra-low-power modes (0.57 μA in RTC+LVD mode), integrated 10-bit ADC (6 channels), real-time clock, and UART/SPI/I²C interfaces - deployed in battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F1006CASP#X0 datasheet, R5F1006CASP#X0 pinout, R5F1006CASP#X0 application, or R5F1006CASP#X0 equivalent, key selection criteria include its 20-pin LSSOP package, 16 KB code flash with self-programming, 10-bit ADC input count, RTC calendar function, and support for STOP/HALT/SNOOZE low-power states in resource-constrained embedded designs.
Technical Context
The R5F1006CASP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates on-chip debug, BGO-capable data flash, and a 12-bit interval timer alongside its 16-bit timers.
Power management includes an on-chip POR circuit and configurable LVD with 14 voltage detection levels. Serial interfaces comprise up to 2 CSI (SPI-compatible), 2 UART/LIN channels, and 3 I²C/Simplified I²C modules - all mapped to dedicated pins in the 20-pin LSSOP footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - enables 41 DMIPS performance for real-time control loops |
| Flash Memory | 16 KB code flash + 4 KB data flash - supports background operation and 1M rewrite cycles |
| RAM | 2 KB on-chip RAM - sufficient for RTOS stacks and small firmware buffers |
| ADC | 10-bit resolution, 6-channel analog input - usable across full 1.6–5.5 V supply range |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE - critical for multi-year battery life |
| Operating Voltage | 1.6 V to 5.5 V - allows direct interface with 1.8 V, 3.3 V, and 5 V peripherals |
| Temperature Range | −40°C to +85°C - qualified for consumer and industrial ambient environments |
Pinout & Package
Package: 20-pin plastic LSSOP (7.62 mm × 4.4 mm, 0.65-mm pitch), JEDEC MS-013AC compliant, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VSS) | Ground | Dedicated digital ground reference for noise-sensitive analog/digital mixed-signal operation |
| 2 (P20/ANI0/AVREFP) | Analog Input 0 / ADC Reference Positive | Configurable as primary ADC channel or positive reference source for precision measurements |
| 3 (P21/ANI1/AVREFM) | Analog Input 1 / ADC Reference Negative | Supports differential ADC mode or negative reference for ratiometric sensor interfacing |
| 4 (P22/ANI2) | Analog Input 2 | Third dedicated ADC input - enables 3-sensor monitoring without external multiplexing |
| 5 (P147/ANI18) | Analog Input 18 | Extended ADC channel accessible only on 20-pin variants - expands analog sensing capability |
| 6 (P10/SCK00/SCL00) | SPI Clock / I²C Clock | Shared pin for synchronous serial communication - reduces pin count while maintaining dual-protocol flexibility |
| 7 (P11/SI00/RxD0/TOOLRxD/SDA00) | SPI Input / UART RX / I²C Data | Multi-function pin enabling tool connection (debug), host communication, and peripheral bus access |
| 8 (P12/SO00/TxD0/TOOLTxD/SDA00) | SPI Output / UART TX / I²C Data | Enables full-duplex SPI, asynchronous UART, and bidirectional I²C on single pin |
| 9 (P13/INTP0/TOOLCLK) | External Interrupt 0 / Debug Clock | Supports wake-up from STOP mode and synchronized debugging via SWD interface |
| 10 (P14/INTP1) | External Interrupt 1 | Dedicated edge-triggered interrupt input - used for emergency stop or event capture |
| 11 (P15/INTP2) | External Interrupt 2 | Second independent interrupt source - enables dual-sensor trigger or fault monitoring |
| 12 (P16/INTP3) | External Interrupt 3 | Third hardware interrupt line - supports cascaded priority-based event handling |
| 13 (P17/INTP4) | External Interrupt 4 | Fourth interrupt input - extends real-time responsiveness in deterministic systems |
| 14 (P30/CLKP0) | Subsystem Clock Output | Drives external 32.768 kHz crystal or provides clock to companion ICs |
| 15 (P31/CLKP1) | Main System Clock Output | Outputs internal high-speed oscillator (e.g., 32 MHz) for timing-critical peripherals |
| 16 (P32/CLKP2) | RTC Clock Output | Provides calibrated 1 Hz or 32.768 kHz signal for timekeeping or low-power wake-up |
| 17 (P33/CLKP3) | General Clock Output | Programmable clock divider output - useful for driving sensors or logic clocks |
| 18 (VDD) | Power Supply | Single 1.6–5.5 V rail powers entire MCU - eliminates need for external regulators in many designs |
| 19 (RESET) | Reset Input | Active-low reset with internal pull-up - accepts external push-button or supervisor IC assertion |
| 20 (P00/INTP5) | External Interrupt 5 | Fifth interrupt source - supports additional user inputs or system fault detection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA current draw with RTC and LVD active - enables decade-scale coin-cell operation |
| Background data flash rewriting | Code execution continues during 4 KB data flash updates - ensures uninterrupted real-time operation |
| On-chip temperature sensor | Integrated sensor referenced to 1.45 V internal bandgap - enables thermal compensation without external parts |
| Real-time clock with calendar | Full 99-year calendar, alarm, and auto-correction - eliminates need for external RTC IC in time-stamped logging |
| Multi-protocol serial interface | 2 UART/LIN + 2 CSI + 3 I²C channels share 20 pins - maximizes connectivity within minimal footprint |
| Self-programmable flash with shield window | Secure boot swap and flash shield prevent unauthorized firmware modification - meets basic functional safety requirements |
Applications
| Smart Thermostat Sensor Node | Industrial Motor Control Panel |
|---|---|
|
Use Scenario: Battery-powered wall-mounted thermostat collecting ambient temperature/humidity and transmitting via sub-GHz RF. IC Role / Device Role / Timing Role: Main controller executing PID loop, managing ADC sampling, RTC timestamping, and UART-based RF module command interface. Use Value: 0.57 μA STOP mode extends CR2032 battery life beyond 5 years; integrated 10-bit ADC eliminates external signal conditioning. |
Use Scenario: Front-panel HMI for 3-phase motor drive, displaying status, accepting keypad input, and logging fault events. IC Role / Device Role / Timing Role: Dedicated UI processor handling button debounce, LCD refresh, EEPROM logging, and isolated UART communication with main drive MCU. Use Value: 16 KB flash stores localized language strings and fault history; 20-pin LSSOP fits tight panel PCB space constraints. |
| Home Appliance Power Monitor | Medical Wearable Vital Sign Logger |
|
Use Scenario: Plug-in energy monitor measuring AC current/voltage via shunt and CT sensors, storing daily kWh in nonvolatile memory. IC Role / Device Role / Timing Role: Data acquisition engine performing RMS calculations, time-synchronized sampling, and secure data flash storage. Use Value: Background data flash writes allow continuous measurement during logging; 4 KB data flash retains 30+ days of 1-minute interval data. |
Use Scenario: Disposable patch-style ECG/temperature logger worn for 72-hour ambulatory monitoring, powered by thin-film battery. IC Role / Device Role / Timing Role: Low-power acquisition node acquiring analog biosignals, applying digital filtering, and timestamping with RTC calendar. Use Value: HALT mode (66 μA/MHz) enables efficient 125 Hz sampling; internal temperature sensor calibrates analog front-end drift over body temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1006DASP#X0 | 48 KB flash, 3 KB RAM, same 20-pin LSSOP package and peripherals | Higher memory headroom for field-upgradable firmware or larger protocol stacks (e.g., BLE mesh) | Select when future firmware expansion or enhanced data buffering is anticipated |
| R5F1016CASP#X0 | No data flash (0 KB), identical 16 KB code flash, 2 KB RAM, and pinout | Lower cost where EEPROM-like nonvolatile storage is unnecessary or handled externally | Choose for cost-sensitive volume production where data logging is not required |
Compared with R5F1006DASP#X0, the R5F1006CASP#X0 trades flash capacity for lower unit cost and smaller BOM footprint; versus R5F1016CASP#X0, it adds 4 KB data flash for secure, wear-leveled parameter storage without external components.
Availability
R5F1006CASP#X0 is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial HMI panels, and medical wearable loggers requiring stable component supply across multi-year production cycles.
Supply support for R5F1006CASP#X0 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for smart sensors and controls.
FAQ
What is the maximum clock frequency supported by the R5F1006CASP#X0?
The R5F1006CASP#X0 supports a maximum operating frequency of 32 MHz using its high-speed on-chip oscillator. This yields 41 DMIPS performance and enables precise timing for real-time control tasks. The oscillator accuracy is ±1.0% across 1.8–5.5 V supply and −20 to +85°C ambient conditions - sufficient for most industrial sensor and actuator applications without external crystal.
Does the R5F1006CASP#X0 include an integrated temperature sensor?
Yes, the R5F1006CASP#X0 includes an on-chip temperature sensor referenced to its internal 1.45 V bandgap voltage. It is usable only in HS (high-speed main) mode and provides factory-calibrated readings suitable for thermal compensation of analog circuits or ambient temperature monitoring - eliminating the need for external thermistors or digital sensors in many designs.
Can the R5F1006CASP#X0 execute code while rewriting data flash memory?
Yes, the R5F1006CASP#X0 supports background operation (BGO) for data flash. Instructions can be fetched and executed from program memory while simultaneously rewriting the 4 KB data flash - ensuring deterministic real-time behavior during firmware updates, configuration saves, or event logging without system interruption.
What low-power modes are available on the R5F1006CASP#X0, and what is the lowest current consumption?
The R5F1006CASP#X0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - enabling multi-year operation on coin-cell batteries. HALT mode consumes 66 μA/MHz, and SNOOZE allows selective peripheral wake-up while CPU remains halted - providing granular power optimization for diverse duty-cycle profiles.
Is the R5F1006CASP#X0 pin-compatible with other RL78/G13 20-pin variants?
Yes, the R5F1006CASP#X0 shares identical pinout and package (20-pin LSSOP) with all other R5F100x ASP#X0 and R5F101x ASP#X0 variants - including R5F1006AASP#X0, R5F1006DASP#X0, and R5F1016CASP#X0. This enables drop-in replacement for memory or feature upgrades without PCB redesign, provided software accommodates differences in flash size or data flash presence.
R5F1006CASP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 13
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 6x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1006CASP#X0 FAQ
1.How can I place an order for R5F1006CASP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1006CASP#X0 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 R5F1006CASP#X0 reliable?
The price and inventory of R5F1006CASP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1006CASP#X0 is usually 5 days.
3.What payment methods are accepted for R5F1006CASP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1006CASP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1006CASP#X0?
R5F1006CASP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1006CASP#X0 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 R5F1006CASP#X0?
For technical support, including R5F1006CASP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1006CASP#X0 requirements.
6.How does Aetrix verify that R5F1006CASP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F1006CASP#X0 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 R5F1006CASP#X0 meets industry standards.
7.What is the process for return or replacement of R5F1006CASP#X0?
All R5F1006CASP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1006CASP#X0, 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 R5F1006CASP#X0 part is unused and in its original packaging.
Return procedure for R5F1006CASP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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