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Renesas R5F12018MSP#50
- Part No.:
- R5F12018MSP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F12018MSP#50.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 10LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,594
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Product details
Overview
R5F12018MSP#50 from Renesas Electronics is an RL78/G15 10-pin LSSOP microcontroller with 8 KB code flash, 1 KB RAM, and 1 KB data flash, operating from 2.4 V to 5.5 V across −40°C to +125°C industrial temperature range. It integrates an RL78 CPU core (0.0625 μs min instruction time @ 16 MHz), 4-channel 8/10-bit ADC, 8-channel 16-bit timer, UART, simplified I²C, and simplified SPI - deployed in motor control, sensor interface, and industrial HMI subsystems.
For engineers reviewing the R5F12018MSP#50 datasheet, R5F12018MSP#50 pinout, R5F12018MSP#50 application, or R5F12018MSP#50 equivalent, key selection criteria include its M-grade extended-temperature operation, on-chip debug support, programmable clock/buzzer output (PCLBUZ0), and dual simplified I²C channels - all within a compact 4.4 × 3.6 mm LSSOP package.
Technical Context
The R5F12018MSP#50 implements the RL78-S2 CPU core with CISC architecture and 3-stage pipeline, supporting selectable high-speed on-chip oscillator (1–16 MHz, ±1.0% accuracy at −20°C to +85°C) and low-speed 15 kHz internal oscillator for watchdog timing. Its memory subsystem includes 8 KB code flash (1 KB block erase), 1 KB data flash (512 B blocks, 1M rewrite cycles), and 1 KB SRAM - all accessible under single-supply operation.
Peripherals are organized around a unified interrupt controller handling up to 10 internal and 8 external sources, with timer array unit (TAU0) providing 8 independent 16-bit channels, one 12-bit interval timer, and one watchdog timer. Analog functions include 4-channel ADC (8/10-bit, VDD-referenced), two comparator inputs (IVCMP0/IVREF0), and VCOUT0 output - all mapped to dedicated pins in the 10-pin LSSOP configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78-S2 CISC CPU with 3-stage pipeline; enables deterministic real-time response in resource-constrained embedded systems |
| Flash Memory | 8 KB code flash (1 KB erase blocks); supports self-programming without boot swap, enabling field firmware updates |
| Data Flash | 1 KB data flash (512 B blocks, 32-bit rewrite units); rated for 1,000,000 rewrites at full VDD range (2.4–5.5 V) |
| ADC | 4-channel 8/10-bit A/D converter (VDD reference); supports analog sensing of sensors, potentiometers, or voltage rails |
| Oscillator | High-speed on-chip oscillator (1–16 MHz, ±1.0% @ −20°C to +85°C); eliminates external crystal for cost-sensitive designs |
| Temperature Range | −40°C to +125°C (M-grade industrial); qualified for under-hood automotive modules and industrial power converters |
| Package | 10-pin LSSOP (4.4 × 3.6 mm, 0.65 mm pitch); surface-mount compatible with standard reflow profiles |
Pinout & Package
10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch) with exposed pad not present; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40 | Debug / Interrupt / Timer | TOOL0 input/output for on-chip debug; INTP2 interrupt source; TI01/TO01 timer I/O - enables JTAG/SWD debugging and edge-triggered event capture |
| P125 | Reset / System Control | Active-low RESET̅ input with selectable SPOR threshold (2.25–4.45 V); supports robust power-on initialization and brownout recovery |
| P137 | Interrupt / Timer | INTP0 interrupt input; TI00 timer input - used for wake-up from STOP/HALT modes and precise timing event detection |
| VSS | Ground Reference | Analog/digital ground common return; must be connected to PCB ground plane with low-inductance path for noise immunity |
| VDD | Power Supply | Single 2.4–5.5 V supply for entire IC; powers core, peripherals, and I/O - no separate analog rail required |
| P04 | Analog / Interrupt / Timer | ANI3 analog input; INTP3 interrupt; TI01/TO01 timer I/O - supports analog sensor interfacing with synchronous timing control |
| P03 | Analog / Interrupt / Comm | ANI2 analog input; IVCMP0 comparator input; INTP4 interrupt; TO00 timer output; SCLA0 simplified I²C clock - enables analog monitoring with hardware I²C bus arbitration |
| P02 | Analog / Timer / Comm | ANI1 analog input; VCOUT0 comparator output; INTP7 interrupt; TI01/TO01 timer I/O; SCK00/SCL00 serial clock - provides analog feedback loop closure and synchronous serial communication |
| P01 | Analog / Debug / Comm | ANI0 analog input; TOOLRxD debug input; INTP5 interrupt; TI02/TO02 timer I/O; SI00/RxD0/SDA00 serial data - supports sensor data acquisition, debug logging, and UART/I²C slave operation |
| P00 | Debug / Comm | TOOLTxD debug output; INTP6 interrupt; SO00/TxD0 serial data output - enables bidirectional debug communication and UART transmission |
Key Features
| Feature | Design Value |
|---|---|
| Low-power HALT/STOP modes | Reduces current draw to sub-μA levels during idle; extends battery life in portable industrial sensors |
| On-chip debug (OCDS) | Enables full-cycle development without external emulator; supports breakpoints, watchpoints, and memory inspection via TOOL0/TOOLRxD/TOOLTxD |
| Dual simplified I²C channels | Allows concurrent connection to two I²C slaves (e.g., EEPROM + temperature sensor) without software bit-banging overhead |
| Programmable clock/buzzer output (PCLBUZ0) | Generates precise square-wave outputs up to 10 MHz; drives piezoelectric buzzers or clocks external logic without external oscillator |
| Selectable power-on-reset (SPOR) | Four reset voltage thresholds (2.25–4.45 V) allow tuning to specific power supply ramp characteristics and system reliability requirements |
Applications
| Motor Control Subsystem | Industrial Sensor Node |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC fans in HVAC controllers using hall-effect feedback. IC Role / Device Role / Timing Role: R5F12018MSP#50 executes commutation logic, reads hall sensors via P00–P04, generates PWM via TO00/TO01, and communicates status over UART. Use Value: Integrated 8-channel 16-bit timer enables precise phase timing; 4-channel ADC digitizes hall signals and current sense; M-grade temp rating ensures reliability near motors. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in factory settings. IC Role / Device Role / Timing Role: R5F12018MSP#50 samples analog sensors via ANI0–ANI3, manages low-power sleep/wake cycles using INTP0–INTP7, and transmits data via simplified I²C to display module. Use Value: 1 KB data flash stores calibration coefficients; HALT mode draws <5 μA; −40°C to +125°C operation survives uncontrolled industrial enclosures. |
| Smart Power Outlet | Industrial HMI Keypad |
Use Scenario: AC mains outlet with energy metering, relay control, and local button interface. IC Role / Device Role / Timing Role: R5F12018MSP#50 reads shunt voltage via ANI2, controls relay driver via P03 output, debounces buttons on INTP4/INTP5, and reports kWh via UART to gateway. Use Value: On-chip comparator (IVCMP0) detects zero-crossing for accurate RMS calculation; 8 KB flash hosts secure bootloader and metering firmware. | Use Scenario: Membrane keypad interface for PLC operator panels with LED feedback and tactile response. IC Role / Device Role / Timing Role: R5F12018MSP#50 scans matrix keys via P00–P04, drives LEDs using PCLBUZ0 PWM, and sends key events via simplified I²C to main controller. Use Value: Programmable buzzer output generates user feedback tones; 10-pin LSSOP fits tight front-panel PCB space; M-grade rating withstands panel heater proximity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12017MSP#50 | 4 KB code flash (vs. 8 KB); identical pinout, peripherals, and temperature rating | Suitable for simpler firmware with smaller memory footprint; lacks headroom for future feature expansion | Select when application firmware size is confirmed ≤3.5 KB and no field update capability is needed |
| R5F12048MSP#50 | 16-pin SSOP package; adds 3 extra ADC channels (7 total), X1/X2 crystal support, and CSI01 channel | Required for designs needing crystal-based timing stability or >4 analog inputs (e.g., multi-sensor fusion) | Choose when crystal oscillator accuracy or expanded analog I/O justifies larger PCB footprint and layout revision |
Compared with R5F12017MSP#50, the R5F12018MSP#50 provides double code flash for complex control algorithms and OTA-ready firmware; versus R5F12048MSP#50, it trades pin count and crystal support for minimal board area in space-constrained industrial nodes.
Availability
R5F12018MSP#50 is available at Aetrix Electronics and suitable for industrial motor control, smart power outlets, environmental sensor nodes, and HMI keypad interfaces requiring stable component supply across extended temperature ranges.
Supply support for R5F12018MSP#50 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 automotive, industrial, and IoT markets.
The RL78/G15 product line delivers ultra-low-power, cost-optimized MCUs targeting industrial automation, appliance control, and sensor-edge applications - emphasizing integrated analog, robust timing, and extended-temperature reliability.
FAQ
What is the maximum operating frequency and instruction execution time of the R5F12018MSP#50?
The R5F12018MSP#50 supports a maximum high-speed on-chip oscillator frequency of 16 MHz, yielding a minimum instruction execution time of 0.0625 μs. This timing is achievable with the high-speed on-chip oscillator enabled and no wait states inserted - verified across its full −40°C to +125°C operating range per Renesas datasheet R01DS0420EJ0140.
Does the R5F12018MSP#50 support crystal oscillator input, and if so, what are the specifications?
The R5F12018MSP#50 does not include X1/X2 crystal oscillator pins in its 10-pin LSSOP package. Crystal support is only available on 16-pin and 20-pin RL78/G15 variants (e.g., R5F12048MSP#50). The R5F12018MSP#50 relies exclusively on its internal high-speed on-chip oscillator (1–16 MHz) and low-speed 15 kHz oscillator - eliminating external crystal components and reducing BOM cost.
How many analog input channels does the R5F12018MSP#50 provide, and what is their resolution?
The R5F12018MSP#50 provides four analog input channels (ANI0–ANI3), each supporting 8-bit or 10-bit resolution with VDD as reference. These channels are mapped to pins P01, P03, P04, and P02 respectively, and operate across the full supply range of 2.4 V to 5.5 V - enabling direct interfacing with resistive sensors, thermistors, and voltage dividers in industrial environments.
What debug interface does the R5F12018MSP#50 use, and which pins are required?
The R5F12018MSP#50 uses Renesas' on-chip debug system (OCDS) accessed via three dedicated pins: TOOL0 (P40), TOOLRxD (P01), and TOOLTxD (P00). This 3-wire interface supports full breakpoint, step-through, and memory inspection capabilities without requiring external debug probes - simplifying development and reducing test fixture complexity for the R5F12018MSP#50.
Is background operation (BGO) supported for data flash writes on the R5F12018MSP#50?
No, background operation (BGO) is not supported for data flash writes on the R5F12018MSP#50. During data flash rewriting, the CPU cannot execute instructions from code flash memory - requiring careful state management and temporary suspension of real-time tasks. This behavior is explicitly documented in the R01DS0420EJ0140 datasheet and applies uniformly across all RL78/G15 variants with 1 KB data flash, including the R5F12018MSP#50.
R5F12018MSP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 10-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G15
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 7
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 4x8/10b SAR
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F12018MSP#50 FAQ
1.How can I place an order for R5F12018MSP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12018MSP#50 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 R5F12018MSP#50 reliable?
The price and inventory of R5F12018MSP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12018MSP#50 is usually 5 days.
3.What payment methods are accepted for R5F12018MSP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12018MSP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F12018MSP#50?
R5F12018MSP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12018MSP#50 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 R5F12018MSP#50?
For technical support, including R5F12018MSP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12018MSP#50 requirements.
6.How does Aetrix verify that R5F12018MSP#50 is sourced from the original manufacturer or authorized distributors?
All R5F12018MSP#50 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 R5F12018MSP#50 meets industry standards.
7.What is the process for return or replacement of R5F12018MSP#50?
All R5F12018MSP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12018MSP#50, 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 R5F12018MSP#50 part is unused and in its original packaging.
Return procedure for R5F12018MSP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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