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Renesas R5F12018GSP#50
- Part No.:
- R5F12018GSP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F12018GSP#50.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 10LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
R5F12018GSP#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 +105°C industrial temperature range. It integrates an 8/10-bit ADC (4 channels), two simplified I²C interfaces, one UART, two CSI (SPI-compatible) channels, eight 16-bit timer channels, and a programmable buzzer/clock output - deployed in smart sensors and industrial control nodes requiring low-power deterministic timing.
For engineers reviewing the R5F12018GSP#50 datasheet, R5F12018GSP#50 pinout, R5F12018GSP#50 application, or R5F12018GSP#50 equivalent, this page delivers verified technical context, validated pin functions, real-world use scenarios, and confirmed alternative parts - all grounded in Renesas' R01DS0420EJ0140 Rev.1.40 specification and package-confirmed LSSOP-10 footprint.
Technical Context
The R5F12018GSP#50 implements the RL78-S2 CPU core with 3-stage CISC pipeline, supporting minimum instruction execution time of 0.0625 μs at 16 MHz using the high-speed on-chip oscillator. 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 supporting 8 external interrupt sources (INTP0–INTP7), dual serial array units (SAU0) for UART/CSI/I²C, TAU0 timer array with PWM-capable outputs, and analog resources including a 4-channel 8/10-bit ADC with internal 0.815 V reference and dual comparator inputs - all mapped to its 10-pin LSSOP package with no external crystal required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78-S2 16-bit CISC CPU with 3-stage pipeline, 1 MB address space |
| Flash Memory | 8 KB code flash (1 KB erase blocks); 1 KB data flash (512 B blocks, 1,000,000 rewrites) |
| Operating Voltage | 2.4 V to 5.5 V - enables direct interface with 3.3 V and 5 V logic without level shifters |
| Temperature Range | −40°C to +105°C (G-grade industrial qualification) |
| ADC | 8/10-bit resolution, 4 analog input channels (ANI0–ANI3), internal 0.815 V reference |
| Oscillator | High-speed on-chip oscillator selectable from 1–16 MHz (±1.0% accuracy at −20°C to +85°C) |
| I/O Count | 8 CMOS I/O pins (P00–P04, P125, P137, P40), plus dedicated RESET and power pins |
Pinout & Package
Package: 10-pin LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), lead-free, RoHS-compliant, tape-and-reel (#50 packaging specification).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40 | Tool interface / interrupt / timer I/O | Debug communication (TOOL0), external interrupt INTP2, and timer I/O (TI01/TO01) |
| P125 | Reset / system control | Active-low reset input (RESET̅) with internal pull-up; also supports VCOUT0 comparator output |
| P137 | Interrupt / timer input | External interrupt INTP0 and timer input TI00 - primary wake-up source from STOP mode |
| VSS | Ground reference | Dedicated analog/digital ground pin - must be connected to PCB ground plane with low-impedance path |
| VDD | Power supply | Single 2.4–5.5 V supply for entire IC - decoupling capacitor (0.1 µF) required adjacent to pin |
| P00 | Serial TX / interrupt | Transmit data (TxD0), serial clock output (SCK00/SCL00), and interrupt INTP6 - used for UART or CSI master |
| P01 | Serial RX / ADC / debug | Receive data (RxD0), analog input ANI0, debug input (TOOLRxD), and interrupt INTP5 |
| P02 | ADC / buzzer / timer | Analog input ANI1, buzzer output (PCLBUZ0), comparator output VCOUT0, and timer I/O (TI01/TO01) |
| P03 | ADC / comparator / timer | Analog input ANI2, comparator input IVCMP0, timer output TO00, and interrupt INTP4 |
| P04 | ADC / reference / timer | Analog input ANI3, internal reference input IVREF0, timer I/O (TI01/TO01), and interrupt INTP3 |
Key Features
| Feature | Design Value |
|---|---|
| Low-power HALT/STOP modes | Reduces current draw to µA-level during idle; STOP mode retains RAM and register state with wake-up via INTP0–INTP7 |
| On-chip debug (OCD) | Enables full-cycle debugging via TOOL0/TOOLRxD/TOOLTxD pins - no external JTAG adapter required |
| Self-programmable flash | Allows firmware updates in-system without boot swap; flash shield window prevents unauthorized read access |
| Programmable clock/buzzer output | PCLBUZ0 generates precise square-wave outputs up to 10 MHz - usable for piezo drivers or clock distribution |
| Hardware CRC calculation | Integrated CRC module accelerates checksum computation for firmware integrity verification and communication protocols |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor node with local display and wireless uplink. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, buzzer alerts, UART-based BLE module interface, and low-power sleep scheduling. Use Value: 8 KB flash accommodates sensor fusion algorithms and BLE stack; 105°C rating ensures reliability in HVAC duct environments. |
Use Scenario: Residential thermostat with touch interface, ambient sensing, and relay control. IC Role / Device Role / Timing Role: Central MCU handling button debouncing, 4-channel ADC for thermistor readings, buzzer feedback, and relay timing via TAU0 PWM. Use Value: Integrated 0.815 V reference eliminates external voltage reference IC; LSSOP-10 footprint minimizes board area. |
| Motor Drive Monitor | Industrial IO-Link Master |
|
Use Scenario: Compact motor status monitor with current/voltage sensing and fault reporting. IC Role / Device Role / Timing Role: Real-time acquisition of analog motor signals (ANI0–ANI3), overcurrent detection via comparator, and UART-based diagnostics. Use Value: Dual comparators (IVCMP0/IVREF0) enable fast hardware-level fault response; 16-bit timers support precise pulse-width measurement. |
Use Scenario: IO-Link master port controller interfacing with multiple field devices via UART and GPIO. IC Role / Device Role / Timing Role: Protocol handler translating IO-Link frames to SPI/UART peripherals while managing timing-critical bit-banging sequences. Use Value: Two independent CSI channels allow simultaneous communication with multiple transceivers; 8 KB flash stores device descriptors and parameter sets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12017GSP#50 | 4 KB code flash (vs. 8 KB), identical pinout, same 10-pin LSSOP package and peripheral set | Suitable for simpler firmware with smaller memory footprint; no change to PCB or driver layer | Select when application firmware fits within 4 KB and cost sensitivity outweighs future scalability needs |
| R5F12048GSP#50 | 16-pin SSOP package, adds X1/X2 crystal oscillator pins, 7-channel ADC, and extra SAU channel | Required for designs needing external crystal timing stability or >4 analog inputs | Choose only if crystal-based clocking or expanded analog I/O justifies larger footprint and layout revision |
Compared with R5F12017GSP#50, the R5F12018GSP#50 provides double code flash capacity without altering pin compatibility or power profile; versus R5F12048GSP#50, it trades package size and crystal support for minimal board area and lower BOM count in space-constrained industrial nodes.
Availability
R5F12018GSP#50 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, motor monitoring systems, and IO-Link masters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F12018GSP#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 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 16-bit MCUs optimized for cost-sensitive industrial controls, sensor hubs, and appliance interfaces - balancing performance, integration, and energy efficiency in compact packages.
FAQ
What is the maximum operating frequency of the R5F12018GSP#50?
The R5F12018GSP#50 supports a maximum high-speed on-chip oscillator frequency of 16 MHz, delivering a minimum instruction execution time of 0.0625 μs. This frequency is selectable via option byte settings and maintains ±1.0% accuracy across −20°C to +85°C ambient conditions. External crystal operation up to 12 MHz is also supported via X1/X2 pins - though the R5F12018GSP#50 variant does not include those pins in its 10-pin LSSOP package.
Does the R5F12018GSP#50 support in-system programming?
Yes, the R5F12018GSP#50 supports full in-system programming via its on-chip debug interface using TOOL0, TOOLRxD, and TOOLTxD pins. Code flash and data flash can be rewritten without removing the device from the circuit. Self-programming is implemented without boot swap functionality, and flash shield window protection prevents unauthorized readout of secured firmware sections.
How many analog input channels does the R5F12018GSP#50 provide?
The R5F12018GSP#50 provides four analog input channels: ANI0, ANI1, ANI2, and ANI3 - accessible on pins P01, P02, P03, and P04 respectively. These support 8/10-bit resolution conversion with a selectable internal 0.815 V reference (IVREF0) or external reference, enabling direct thermistor, potentiometer, or sensor signal acquisition without external signal conditioning.
What communication interfaces are integrated into the R5F12018GSP#50?
The R5F12018GSP#50 integrates one UART channel (RxD0/TxD0), two simplified I²C interfaces (IICA0 and IIC00), and two CSI (SPI-compatible) channels (CSI00 and CSI01). All are implemented in the SAU0 serial array unit. The 10-pin LSSOP package maps UART and one CSI/I²C pair to dedicated pins (P00–P01, P02–P04), enabling concurrent serial communication with sensors, displays, or wireless modules.
Is the R5F12018GSP#50 qualified for industrial temperature operation?
Yes, the R5F12018GSP#50 carries the 'G' suffix denoting industrial qualification with guaranteed operation from −40°C to +105°C. This includes full functionality of its 8 KB flash, 1 KB RAM, 4-channel ADC, and all timers and communication peripherals across that range - validated per Renesas' R01DS0420EJ0140 specification and JEDEC JESD22-A108 reliability testing.
R5F12018GSP#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F12018GSP#50 FAQ
1.How can I place an order for R5F12018GSP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12018GSP#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 R5F12018GSP#50 reliable?
The price and inventory of R5F12018GSP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12018GSP#50 is usually 5 days.
3.What payment methods are accepted for R5F12018GSP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12018GSP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F12018GSP#50?
R5F12018GSP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12018GSP#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 R5F12018GSP#50?
For technical support, including R5F12018GSP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12018GSP#50 requirements.
6.How does Aetrix verify that R5F12018GSP#50 is sourced from the original manufacturer or authorized distributors?
All R5F12018GSP#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 R5F12018GSP#50 meets industry standards.
7.What is the process for return or replacement of R5F12018GSP#50?
All R5F12018GSP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12018GSP#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 R5F12018GSP#50 part is unused and in its original packaging.
Return procedure for R5F12018GSP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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