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Renesas R5F11W67DSM#50
- Part No.:
- R5F11W67DSM#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F11W67DSM#50.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
R5F11W67DSM#50 from Renesas Electronics is an ultra-low-power 16-bit RL78/G1M microcontroller in 20-pin TSSOP package, featuring 4 KB code flash, 512 B RAM, 8-channel 8/10-bit ADC, 4-channel 16-bit timer, UART/CSI serial interfaces, and operation from −40°C to +85°C for industrial applications.
For engineers reviewing the R5F11W67DSM#50 datasheet, R5F11W67DSM#50 pinout, R5F11W67DSM#50 application, or R5F11W67DSM#50 equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation value, and two confirmed alternative parts with functional and application-level distinctions.
Technical Context
The R5F11W67DSM#50 implements the RL78-S1 CPU core with CISC architecture and 3-stage pipeline, supporting minimum instruction execution time of 0.05 µs at 20 MHz (VDD ≥ 2.7 V) and address space up to 1 MB. It integrates selectable power-on-reset (SPOR) with four rising-edge detection thresholds (2.25 V to 4.45 V).
Its peripheral set includes a 12-bit interval timer, watchdog timer with dedicated low-speed on-chip oscillator (15 kHz ±15%), programmable clock/buzzer output (PCLBUZ0), and real-time output capability (8 channels - RL78/G1M only). The device supports peripheral I/O redirection via PIOR register for flexible pin assignment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78-S1 16-bit CISC CPU with 3-stage pipeline; enables deterministic timing control for real-time sensor and control loops. |
| Flash / RAM | 4 KB code flash memory and 512 B on-chip RAM; sufficient for compact firmware with bootloader, sensor processing, and communication stacks. |
| ADC | 8-channel 8/10-bit A/D converter (VDD = 2.4–5.5 V); supports simultaneous sampling of multiple analog sensors without external multiplexer. |
| Timers | Four 16-bit timer channels + 12-bit interval timer + watchdog timer; enables PWM generation, precise event timing, and system safety monitoring. |
| Oscillators | High-speed on-chip oscillator (1.25–20 MHz, ±2% accuracy @ −20 to +85°C) + low-speed 15 kHz oscillator; eliminates need for external crystals in cost-sensitive designs. |
| I/O Ports | 18 total I/O pins (14 N-ch open-drain, 6 P-ch open-drain), with on-chip pull-up resistors (10–100 kΩ); simplifies interface to switches, LEDs, and digital sensors. |
| Supply Range | VDD = 2.0–5.5 V (use 2.25–5.5 V recommended); compatible with single-cell Li-ion, 3.3 V, and 5 V supply rails across industrial and consumer systems. |
Pinout & Package
Package: 20-pin plastic TSSOP (4.4 × 6.5 mm, 0.65 mm pitch), RoHS-compliant, embossed tape packaging (#50).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main positive supply rail (2.25–5.5 V); decoupling capacitor required near pin for stable core and peripheral operation. |
| VSS | Ground | Digital ground reference; must be connected to system GND plane with low-impedance path to minimize noise coupling. |
| P00–P05 | CMOS I/O (N-ch open-drain) | General-purpose bidirectional ports with configurable pull-up; suitable for switch inputs, LED drivers, and I²C bus (with external pull-up). |
| P06, P07, P10–P16, P40 | CMOS I/O (N-ch open-drain) | Additional GPIO with shared alternate functions (e.g., UART, CSI, timer I/O); P06/P07 support RxD0/TxD0 in default configuration. |
| P125 | RESET / KR1 | Active-low reset input with internal pull-up; also serves as key return line; external RC network enables power-on reset timing control. |
| P137 | INTP0 / TI00 | External interrupt input or timer input channel 0; supports edge-triggered wake-up from HALT/STOP modes for ultra-low-power sensing. |
| ANI0–ANI7 | Analog input | Eight dedicated ADC input channels mapped across P00–P16; supports single-ended measurement with internal reference (VDD or AVREF). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP modes | Halt current ≤ 980 µA (20 MHz), STOP current ≤ 2.35 µA (VDD = 3 V); extends battery life in portable industrial monitors and remote sensors. |
| Selectible SPOR voltage thresholds | Four rising-edge VSPOR options (2.25/2.68/3.02/4.45 V); allows precise reset point tuning for brown-out resilience across varying supply conditions. |
| On-chip debug function | Fully integrated debug interface via TOOL0 pin; enables in-circuit programming and real-time trace without external JTAG adapter. |
| Real-time output (RTIO) | 8-channel RTIO capability (RL78/G1M only); provides hardware-synchronized pulse outputs for motor phase control or LED dimming sequences. |
| Peripheral I/O redirection (PIOR) | Software-configurable pin mapping for UART, CSI, timer, and buzzer functions; increases PCB layout flexibility and reduces routing congestion. |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor node with wireless telemetry in HVAC maintenance systems. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, data preprocessing, and UART-based packet transmission. Use Value: 4 KB flash accommodates lightweight Modbus/UART protocol stack; 8-channel ADC reads multiple environmental sensors; STOP mode draws <2.4 µA for multi-day battery life. |
Use Scenario: Residential thermostat with display, keypad, relay control, and local feedback loop. IC Role / Device Role / Timing Role: Central MCU managing analog sensor inputs, key scan, buzzer alerts, and relay actuation timing. Use Value: On-chip key interrupt (KR0–KR7) enables low-power wake-on-keypress; PCLBUZ0 drives audible alerts without external driver; 16-bit timers precisely manage relay debounce and display refresh. |
| Programmable Power Supply Monitor | LED Lighting Sequencer |
Use Scenario: DIN-rail mounted module monitoring AC/DC supply voltages and triggering alarms during undervoltage events. IC Role / Device Role / Timing Role: Voltage supervisor and alarm coordinator using ADC inputs and real-time output for status signaling. Use Value: Selectable SPOR thresholds allow matching to specific supply rail tolerances; 12-bit interval timer ensures accurate watchdog timeout independent of main clock. |
Use Scenario: Architectural LED strip controller with synchronized color sequencing and brightness ramping. IC Role / Device Role / Timing Role: Timing engine generating synchronized PWM waveforms across multiple LED channels. Use Value: 8-channel real-time output (RTIO) delivers hardware-timed pulses to LED drivers; high-speed oscillator (±2%) ensures consistent color fidelity across temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F11W68DSM#50 | 8 KB flash, 1 KB RAM (vs. 4 KB/512 B); identical pinout, peripherals, and package. | Suitable for firmware requiring larger bootloader, OTA update partition, or expanded sensor fusion algorithms. | Select when future firmware growth or dual-bank updates are anticipated; no hardware change needed. |
| R5F11Y67DSM#50 | RL78/G1N variant: lacks real-time output (RTIO), adds high-current P-ch open-drain outputs on P00–P05. | Better suited for driving higher-current loads (e.g., segment LCDs, relays) but not for time-critical pulse synchronization. | Choose for direct drive of displays or solenoids where RTIO is unnecessary; verify I/O strength requirements match. |
Compared with R5F11W67DSM#50, R5F11W68DSM#50 offers scalable memory headroom within identical timing and I/O behavior, while R5F11Y67DSM#50 trades RTIO capability for enhanced drive strength-making each alternative optimal for distinct subsystem priorities: firmware scalability versus load-driving capability.
Availability
R5F11W67DSM#50 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, programmable power monitors, and LED lighting sequencers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant TSSOP packaging.
Supply support for R5F11W67DSM#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G1M group-including R5F11W67DSM#50-is designed for ultra-low-power industrial control applications demanding robustness, integrated analog peripherals, and seamless debug integration in space-constrained designs.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F11W67DSM#50?
The R5F11W67DSM#50 features a high-speed on-chip oscillator selectable from 1.25 MHz to 20 MHz, with ±2.0% accuracy over −20°C to +85°C and VDD = 2.0–5.5 V. At 20 MHz operation, the minimum instruction execution time is 0.05 µs (when VDD ≥ 2.7 V). This eliminates external crystal cost while maintaining timing predictability for real-time control tasks in the R5F11W67DSM#50.
Does R5F11W67DSM#50 support real-time output (RTIO) functionality?
Yes, the R5F11W67DSM#50-being an RL78/G1M-series part-supports 8-channel real-time output (RTIO). This hardware feature enables precise, jitter-free pulse generation synchronized to internal timers, making it ideal for applications like LED dimming sequences, motor commutation timing, or synchronized sensor trigger signals in the R5F11W67DSM#50.
What are the key differences between R5F11W67DSM#50 and R5F11Y67DSM#50?
R5F11W67DSM#50 (RL78/G1M) includes 8-channel real-time output (RTIO) and uses standard I/O drive strength, whereas R5F11Y67DSM#50 (RL78/G1N) removes RTIO but adds high-current P-ch open-drain outputs on P00–P05. Both share 4 KB flash, 512 B RAM, and identical pinout-but R5F11Y67DSM#50 targets display or relay driving, while R5F11W67DSM#50 prioritizes timing-critical synchronization.
Can R5F11W67DSM#50 operate from a 2.0 V supply?
The R5F11W67DSM#50 is rated for VDD = 2.0–5.5 V, but Renesas specifies use within 2.25–5.5 V due to the selectable power-on-reset (SPOR) circuit's minimum detection voltage (2.25 V). Below 2.25 V, SPOR may not assert reliably-so for robust reset behavior across temperature, maintain VDD ≥ 2.25 V in all operating conditions for the R5F11W67DSM#50.
How many analog input channels does R5F11W67DSM#50 support, and what resolution is available?
The R5F11W67DSM#50 integrates an 8/10-bit successive-approximation A/D converter with 8 analog input channels (ANI0–ANI7), usable across VDD = 2.4–5.5 V. Resolution is software-selectable per conversion; 10-bit mode provides finer granularity for precision sensor measurements, while 8-bit mode enables faster sampling-both supported natively in the R5F11W67DSM#50 without external components.
R5F11W67DSM#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G1M
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CSI, UART/USART
- Peripherals:
- POR, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F11W67DSM#50 FAQ
1.How can I place an order for R5F11W67DSM#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F11W67DSM#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 R5F11W67DSM#50 reliable?
The price and inventory of R5F11W67DSM#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F11W67DSM#50 is usually 5 days.
3.What payment methods are accepted for R5F11W67DSM#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F11W67DSM#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F11W67DSM#50?
R5F11W67DSM#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F11W67DSM#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 R5F11W67DSM#50?
For technical support, including R5F11W67DSM#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F11W67DSM#50 requirements.
6.How does Aetrix verify that R5F11W67DSM#50 is sourced from the original manufacturer or authorized distributors?
All R5F11W67DSM#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 R5F11W67DSM#50 meets industry standards.
7.What is the process for return or replacement of R5F11W67DSM#50?
All R5F11W67DSM#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F11W67DSM#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 R5F11W67DSM#50 part is unused and in its original packaging.
Return procedure for R5F11W67DSM#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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