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Renesas R5F12068MSP#50
- Part No.:
- R5F12068MSP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F12068MSP#50.pdf
- Description:
- RL78/G15 ROM:8KB, 20PIN LSSOP IN
- Quantity:
- Payment:
- Shipping:
Inventory:4,700
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Product details
Overview
R5F12068MSP#50 from Renesas Electronics is an RL78/G15 20-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 8/10-bit 11-channel ADC, dual comparators, 8-channel 16-bit timer array, UART, two simplified SPI (CSI), two simplified I²C, and on-chip high-speed oscillator selectable from 1–16 MHz. Used in motor control subsystems of HVAC actuators.
For engineers reviewing the R5F12068MSP#50 datasheet, R5F12068MSP#50 pinout, R5F12068MSP#50 application, or R5F12068MSP#50 equivalent, key selection criteria include its M-grade extended-temperature operation, 20-pin LSSOP package with 0.65-mm pitch, 11-channel analog input capability, and support for background-independent data flash writes at full VDD range.
Technical Context
The R5F12068MSP#50 implements the RL78-S2 CPU core-a CISC architecture with 3-stage pipeline-delivering minimum instruction execution time of 0.0625 μs at 16 MHz. Its clock system combines a high-speed on-chip oscillator (±1.0% accuracy from −20°C to +85°C), low-speed 15 kHz on-chip oscillator, and external crystal interface (X1/X2) supporting 1–12 MHz.
Peripheral integration includes TAU0 timer array (8 channels), SAU0 serial array unit (2 channels), IICA0 I²C bus interface, and dual independent comparators (COMP0/COMP1) with selectable internal/external reference voltage. All analog functions operate across the full 2.4–5.5 V supply range without requiring external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78-S2 CISC with 3-stage pipeline; enables deterministic real-time response in closed-loop control |
| Code Flash / Data Flash | 8 KB / 1 KB; supports self-programming without boot swap; 1,000,000 write cycles (TYP.) |
| Operating Voltage | 2.4 V to 5.5 V; allows direct interface with 3.3 V and 5 V logic domains without level shifters |
| Temperature Range | −40°C to +125°C (M-grade); qualified for under-hood automotive and industrial power electronics |
| Analog Inputs | 11-channel 8/10-bit ADC; simultaneous sampling not supported, but configurable trigger sources enable synchronized acquisition |
| Serial Interfaces | UART ×1, CSI ×2 (SPI-compatible), simplified I²C ×2, IICA ×1; permits concurrent sensor comms and host interface |
| Timer Resources | TAU0 with 8×16-bit channels + 12-bit interval timer + watchdog; supports PWM generation on up to 7 outputs |
| Comparator Count | 2 independent comparators (COMP0/COMP1); each supports high/low-speed modes and internal/external reference selection |
Pinout & Package
Package: 20-pin LSSOP, 4.4 mm × 6.5 mm, 0.65-mm pitch, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TOOLTxD / SO00 / TxD0 | Primary debug UART transmit; also serves as serial data output for SAU0 channel 0 |
| P01 | TOOLRxD / SI00 / RxD0 / SDA00 | Primary debug UART receive; also serial data input and I²C data line for IIC00 |
| P02 | PCLBUZ0 / ANI1 / VCOUT0 / SCK00 | Programmable clock/buzzer output; analog input 1; comparator 0 output; SPI clock for CSI00 |
| P03 | ANI2 / IVCMP0 / TO00 | Analog input 2; comparator 0 inverting input; timer output 0 for PWM or pulse generation |
| P04 | ANI3 / IVREF0 / TI01 / TO01 | Analog input 3; comparator 0 reference input; timer input/output for edge-triggered capture or PWM |
| P05 | ANI4 / TI02 / TO02 / SO01 | Analog input 4; timer input/output pair; serial data output for SAU0 channel 1 |
| P06 | ANI5 / SI01 / SDA01 / SCLA0 | Analog input 5; serial data input for SAU0 channel 1; I²C data line and clock for IIC01 |
| P07 | ANI6 / SCK01 / SDAA0 / TO03 | Analog input 6; SPI clock for CSI01; I²C addressable slave mode data line; timer output 3 |
| P20 | ANI10 / IVREF1 / TI00 | Analog input 10; comparator 1 reference input; primary timer input for TAU0 channel 0 |
| P21 | ANI9 / IVCMP1 / TO00 | Analog input 9; comparator 1 inverting input; shared timer output with P03 |
| P22 | ANI8 / TI06 / TO06 | Analog input 8; timer input/output for dedicated channel 6; supports PWM or capture |
| P23 | ANI7 / TI04 / TO04 | Analog input 7; timer input/output for dedicated channel 4; isolated from other timer resources |
| P40 | TOOL0 / INTP2 / TI01 / TO01 | Debug tool interface; external interrupt 2 source; shared timer I/O for flexible signal routing |
| P41 | VCOUT1 / TI03 / TO03 | Comparator 1 output; timer input/output for channel 3; enables feedback loop closure in analog control |
| P121 | X1 / TI07 / TO07 | Main crystal oscillator input; also timer I/O for channel 7; supports precision timing with external resonator |
| P122 | X2 / EXCLK / TI05 / TO05 | Cystal oscillator output / external clock input; timer I/O for channel 5; enables clock source flexibility |
| P125 | RESET / INTP1 / VCOUT0 / VCOUT1 / SI01 | Active-low reset input; interrupt 1 source; dual comparator outputs; serial data input for SAU0 channel 1 |
| P137 | INTP0 / TI00 | Priority interrupt 0 input; timer input for channel 0; used for critical event handling (e.g., fault detection) |
| VDD | Power Supply | Single 2.4–5.5 V supply; powers all digital and analog blocks including ADC and comparators |
| VSS | Ground | Digital ground reference; must be connected to low-impedance PCB plane for noise-sensitive analog operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-power HALT/STOP modes | Reduces current draw to sub-μA levels while preserving RAM and register state for fast wake-up in battery-powered nodes |
| On-chip BCD correction circuit | Enables direct decimal arithmetic for display drivers and metering applications without software overhead |
| Selectable SPOR reset voltage | Four threshold options (2.25 V to 4.45 V) allow precise brown-out detection aligned with system power rail sequencing |
| Background-independent data flash writes | Allows firmware updates or parameter storage without halting real-time control execution-no BGO required |
| Peripheral I/O redirection (PIOR) | Enables dynamic remapping of serial, timer, and analog functions to alternate pins-increases layout flexibility |
| True 125°C operation | Validated performance across full industrial temperature range eliminates derating concerns in enclosed enclosures |
Applications
| Motor Control Subsystem | Industrial Sensor Node |
|---|---|
Use Scenario: Embedded controller for brushless DC motor commutation in HVAC damper actuators. IC Role / Device Role / Timing Role: Real-time PWM generation, analog feedback sampling (current/voltage), and fault monitoring via comparator outputs. Use Value: Integrated 7-PWM timer outputs and 11-channel ADC eliminate external driver ICs and reduce BOM count by 3 components. | Use Scenario: Edge node collecting temperature, humidity, and pressure data in factory automation systems. IC Role / Device Role / Timing Role: Analog front-end acquisition, I²C sensor interfacing, and UART-based data aggregation to gateway. Use Value: Dual comparators monitor supply rails and sensor faults; 125°C rating ensures reliability near heat-generating machinery. |
| Smart Power Outlet | Appliance User Interface |
Use Scenario: Energy-monitoring smart outlet with load switching, current sensing, and BLE coexistence. IC Role / Device Role / Timing Role: Isolated current measurement via ADC, zero-cross detection using timer inputs, and UART-to-BLE bridge. Use Value: High-speed on-chip oscillator ±1.0% accuracy enables precise zero-cross timing without external crystal-reducing component count. | Use Scenario: Keypad and LED display controller in microwave ovens and washing machines. IC Role / Device Role / Timing Role: Matrix keypad scanning, LED dimming via PWM, buzzer tone generation, and EEPROM emulation. Use Value: On-chip programmable clock/buzzer output (PCLBUZ0) drives audible alerts directly-no external driver needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12067MSP#50 | 4 KB code flash (vs. 8 KB); identical pinout, peripherals, and temperature rating | Suitable for cost-sensitive designs with smaller firmware footprints and no future feature expansion needs | Select when firmware size remains ≤3.5 KB and long-term code growth is not anticipated |
| RL78/G14 R5F11AGJFP#30 | 16-pin HWQFN; 4 KB flash; lacks second comparator and 4 analog inputs (ANI7–ANI10) | Better suited for space-constrained, lower-channel-count applications where thermal density favors QFN | Choose for compact PCB layouts needing only 7 analog inputs and single comparator functionality |
Compared with R5F12067MSP#50 and RL78/G14 R5F11AGJFP#30, the R5F12068MSP#50 provides double the code flash capacity and full 11-channel analog support-critical for field-upgradable firmware and multi-sensor fusion in industrial edge devices.
Availability
R5F12068MSP#50 is available at Aetrix Electronics and suitable for motor control subsystems, industrial sensor nodes, smart power outlets, and appliance user interfaces requiring stable component supply across extended temperature ranges.
Supply support for R5F12068MSP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT markets.
The RL78/G15 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, thermally demanding embedded applications-emphasizing analog integration, robust debug, and extended-temperature reliability.
FAQ
What is the maximum operating frequency of the R5F12068MSP#50's high-speed on-chip oscillator?
The R5F12068MSP#50 supports a high-speed on-chip oscillator frequency of up to 16 MHz, selectable via option byte bits 0–2. At this setting, the minimum instruction execution time is 0.0625 μs. Frequency accuracy is ±1.0% over −20°C to +85°C ambient, and ±1.5% over the full −40°C to +125°C industrial range.
Does the R5F12068MSP#50 support simultaneous analog-to-digital conversions across multiple channels?
No, the R5F12068MSP#50 does not support true simultaneous sampling. Its 8/10-bit ADC performs sequential conversions across up to 11 channels using a shared sample-and-hold circuit. However, it supports hardware-triggered conversion sequences with configurable scan order and interrupt-on-completion per channel.
Can the R5F12068MSP#50 execute code while rewriting data flash memory?
No, the R5F12068MSP#50 does not support background operation (BGO) during data flash rewrites. Instructions cannot be executed from code flash memory while data flash is being rewritten. The device requires entering a wait state until the rewrite completes, which takes approximately 10 ms per 32-bit word.
What is the function of the PCLBUZ0 pin on the R5F12068MSP#50?
The PCLBUZ0 pin on the R5F12068MSP#50 serves as a programmable clock output or buzzer drive signal. It can generate square-wave tones at frequencies up to 10 MHz (when fMAIN = 10 MHz) and supports direct connection to piezoelectric buzzers without external drivers-enabling audible feedback in appliances and industrial HMI.
How many external interrupt sources does the R5F12068MSP#50 support, and which pins provide them?
The R5F12068MSP#50 supports eight external interrupt sources (INTP0 through INTP7). These are assigned to pins P137 (INTP0), P125 (INTP1), P40 (INTP2), P04 (INTP3), P03 (INTP4), P01/P20/P07 (INTP5), P00/P05/P23 (INTP6), and P02/P21/P06 (INTP7), with multiplexing managed via the Peripheral I/O Redirection Register (PIOR).
R5F12068MSP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G15
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 17
- 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 11x8/10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F12068MSP#50 FAQ
1.How can I place an order for R5F12068MSP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12068MSP#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 R5F12068MSP#50 reliable?
The price and inventory of R5F12068MSP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12068MSP#50 is usually 5 days.
3.What payment methods are accepted for R5F12068MSP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12068MSP#50 transactions.
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R5F12068MSP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12068MSP#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 R5F12068MSP#50?
For technical support, including R5F12068MSP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12068MSP#50 requirements.
6.How does Aetrix verify that R5F12068MSP#50 is sourced from the original manufacturer or authorized distributors?
All R5F12068MSP#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 R5F12068MSP#50 meets industry standards.
7.What is the process for return or replacement of R5F12068MSP#50?
All R5F12068MSP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12068MSP#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 R5F12068MSP#50 part is unused and in its original packaging.
Return procedure for R5F12068MSP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F12068MSP#50 Tags
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