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Renesas R5F11W67ASM#70
- Part No.:
- R5F11W67ASM#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F11W67ASM#70.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G1M 4K 2
- Quantity:
- Payment:
- Shipping:
Inventory:1,501
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Product details
Overview
R5F11W67ASM#70 from Renesas Electronics is an ultra-low-power 16-bit RL78/G1M microcontroller in a 20-pin TSSOP package, featuring 4 KB flash memory, 512 B RAM, 8-channel 8/10-bit ADC, 4-channel 16-bit timer, UART/CSI serial interfaces, and operation across –40°C to +85°C for consumer-grade embedded control applications including sensor nodes and battery-powered UI modules.
For engineers reviewing the R5F11W67ASM#70 datasheet, R5F11W67ASM#70 pinout, R5F11W67ASM#70 application, or R5F11W67ASM#70 equivalent, key selection criteria include its 4 KB flash capacity, 20-pin TSSOP (0.65 mm pitch) footprint, 2.0–5.5 V supply range with SPOR reset, real-time output capability (8 channels), and support for HALT/STOP low-power modes - all confirmed for the R5F11W67ASM variant per Renesas DS0378EJ0100.
Technical Context
The R5F11W67ASM#70 implements the RL78-S1 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution time of 0.05 µs at 20 MHz. It integrates a selectable high-speed on-chip oscillator (1.25–20 MHz, ±2% accuracy) and low-speed 15 kHz oscillator for independent watchdog and interval timing.
Peripheral integration includes a 4-channel TAU (Timer Array Unit) supporting PWM outputs, programmable clock/buzzer output (PCLBUZ0), key interrupt (KR0–KR7), and peripheral I/O redirection register (PIOR) for flexible pin function assignment - all verified for RL78/G1M group devices including R5F11W67ASM in the official datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78-S1 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / RAM | 4 KB code flash memory and 512 B on-chip RAM - sufficient for compact firmware with integrated ADC and serial stack |
| Supply Range | 2.0–5.5 V (operation within 2.25–5.5 V recommended due to SPOR detection voltage) |
| Power Modes | HALT mode (390–980 µA @ 20 MHz), STOP mode (0.61–2.35 µA @ 3 V) - enables multi-year battery life in sensing endpoints |
| ADC | 8-channel 8/10-bit A/D converter (VDD = 2.4–5.5 V) - supports direct analog sensor interfacing without external signal conditioning |
| Timers | 4 × 16-bit TAU channels + 12-bit interval timer + watchdog timer - enables precise PWM generation and periodic wake-up scheduling |
| Serial Interfaces | 1 × UART (up to 3.3 Mbps theoretical) + 1 × CSI (SPI-compatible master/slave) - suitable for host MCU communication and peripheral bridging |
Pinout & Package
Package: 20-pin plastic TSSOP (4.4 × 6.5 mm, 0.65 mm pitch), JEDEC standard PTSP0020JI-A footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main positive supply rail (2.0–5.5 V); decoupling capacitor required near pin |
| VSS | Ground | Digital ground reference; must be connected to system GND plane |
| P00–P05 | General-purpose I/O | 16 total CMOS I/O pins (14 N-ch open-drain, 6 P-ch open-drain); support on-chip pull-up resistors (10–100 kΩ) |
| P10–P16, P40 | Multiplexed I/O | Support alternate functions: ANI0–ANI7 (ADC inputs), TI00–TI03/TO00–TO03 (timer I/O), RxD0/TxD0 (UART), SCK00/SI00/SO00 (CSI) |
| P125 | Reset input | Active-low RESET pin with internal pull-up; accepts external reset pulse ≥10 µs width |
| P137 | External interrupt | INTP0 input with noise filter; used for wake-up from low-power modes |
| TOOL0 | Debug interface | On-chip debug data I/O for programming and emulation via Renesas E2/E2 Lite tools |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP modes | Reduces active current to sub-1 mA and standby current to <2.4 µA - critical for coin-cell or energy-harvesting designs |
| Selectable power-on-reset (SPOR) | Four rising-edge detection thresholds (2.25/2.68/3.02/4.45 V) - ensures reliable startup across varying battery discharge profiles |
| Real-time output (RTIO) function | 8 dedicated RTIO channels - enables deterministic, jitter-free waveform generation independent of CPU load |
| Peripheral I/O redirection (PIOR) | Hardware register allows dynamic remapping of UART/CSI/timer functions to alternate pins - simplifies PCB layout and avoids routing conflicts |
| On-chip BCD correction circuit | Hardware-accelerated binary-to-BCD conversion - reduces firmware overhead in display-driven applications (e.g., digital thermostats) |
Applications
| Smart Home Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Main controller executing sensor polling, ADC conversion, UART transmission, and STOP-mode sleep scheduling. Use Value: 4 KB flash hosts lightweight protocol stack; 512 B RAM buffers sensor readings; STOP mode draws ≤2.35 µA to extend 2xAA battery life beyond 3 years. | Use Scenario: Wearable pulse oximeter with LED drivers and analog front-end. IC Role / Device Role / Timing Role: Signal acquisition controller managing 8-channel ADC sampling, real-time LED timing via RTIO, and buzzer alerts. Use Value: 8-channel ADC supports dual-wavelength photodiode inputs; RTIO channels drive synchronized LED pulses with sub-microsecond jitter; P-ch open-drain outputs directly sink LED current. |
| Industrial Control Panel | Consumer Appliance UI |
Use Scenario: Keypad-based HMI for HVAC control with backlight and buzzer feedback. IC Role / Device Role / Timing Role: Key scan processor with KR0–KR7 inputs, PCLBUZ0 tone generation, and PWM-controlled LED dimming. Use Value: On-chip key interrupt detects press/release without polling; PCLBUZ0 generates 2.44 kHz–10 MHz tones; 16-bit timers enable smooth 100+ step LED brightness control. | Use Scenario: Microwave oven control board managing touch keys, display, and safety interlocks. IC Role / Device Role / Timing Role: System supervisor handling INTP0–INTP5 external interrupts (door switch, timer expiry), watchdog monitoring, and real-time buzzer output. Use Value: Watchdog timer prevents lockup during cooking cycles; 7 vectored external interrupts ensure immediate response to safety events; BCD correction accelerates 7-segment display updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F11W68ASM#70 | 8 KB flash, 1 KB RAM - double memory capacity with identical pinout and peripherals | Suitable for firmware requiring larger bootloader, OTA update partition, or expanded feature set | Select when future firmware growth or field-upgrade capability is required; same PCB layout and toolchain |
| R5F11Y67ASM#70 | RL78/G1N variant: higher drive strength (–130 mA total high-drive), no RTIO, different pin alternate functions | Better suited for segment LCD driving or high-current LED control; lacks real-time output channels | Choose for display-centric designs needing P-ch open-drain outputs; verify PIOR configuration compatibility |
Compared with R5F11W67ASM#70, R5F11W68ASM#70 offers scalable memory without hardware changes, while R5F11Y67ASM#70 trades RTIO capability for enhanced I/O drive - making each optimal for distinct subsystem requirements in cost-sensitive consumer electronics.
Availability
R5F11W67ASM#70 is available at Aetrix Electronics and suitable for smart home sensor nodes, portable medical monitors, industrial control panels, and consumer appliance UIs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F11W67ASM#70 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G1M product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated consumer and industrial control applications - emphasizing energy efficiency, integrated peripherals, and simplified development.
FAQ
What is the maximum operating frequency and instruction execution time of the R5F11W67ASM#70?
The R5F11W67ASM#70 supports a maximum high-speed on-chip oscillator frequency of 20 MHz, yielding a minimum instruction execution time of 0.05 µs under 2.7–5.5 V supply conditions. At lower voltages (2.0–2.7 V), the minimum cycle time extends to 0.2 µs. This timing is confirmed in Section 2.4 AC Characteristics of Renesas DS0378EJ0100 for the R5F11W67ASM variant.
Does the R5F11W67ASM#70 support real-time output functionality?
Yes, the R5F11W67ASM#70 includes 8 real-time output (RTIO) channels, a feature exclusive to the RL78/G1M group. These channels generate deterministic, CPU-independent waveforms for time-critical tasks such as LED strobing or motor commutation. This capability is explicitly documented in Table 1-1 and Section 1.6 Outline of Functions for R5F11W67ASM in DS0378EJ0100.
What are the valid supply voltage ranges and reset behavior for the R5F11W67ASM#70?
The R5F11W67ASM#70 operates across 2.0–5.5 V, but Renesas specifies use within 2.25–5.5 V due to SPOR detection voltage thresholds (2.25/2.68/3.02/4.45 V). It supports multiple reset sources: external RESET pin assertion (≥10 µs low pulse), internal watchdog timeout, SPOR, illegal instruction execution, and data retention voltage violation - all confirmed for R5F11W67ASM in Section 1.6.
How many analog input channels does the R5F11W67ASM#70 support, and what resolution is available?
The R5F11W67ASM#70 integrates an 8/10-bit successive-approximation A/D converter with 8 analog input channels (ANI0–ANI7), operating over a 2.4–5.5 V reference range. Resolution is selectable per conversion, and the ADC supports single- or continuous-conversion modes. This specification is consistent across all RL78/G1M 20-pin variants including R5F11W67ASM per DS0378EJ0100 Section 1.6.
Is the R5F11W67ASM#70 pin-compatible with other RL78/G1M or RL78/G1N devices?
The R5F11W67ASM#70 shares the identical 20-pin TSSOP (PTSP0020JI-A) package and pin configuration with other RL78/G1M devices like R5F11W68ASM and RL78/G1N devices such as R5F11Y67ASM. However, alternate-function assignments differ between G1M and G1N groups - e.g., RTIO is G1M-only, while high-current P-ch outputs are G1N-specific. Pinout compatibility is confirmed in Sections 1.3.1 and 1.3.2 of DS0378EJ0100.
R5F11W67ASM#70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G1M
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 8-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:
R5F11W67ASM#70 FAQ
1.How can I place an order for R5F11W67ASM#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F11W67ASM#70 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 R5F11W67ASM#70 reliable?
The price and inventory of R5F11W67ASM#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F11W67ASM#70 is usually 5 days.
3.What payment methods are accepted for R5F11W67ASM#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F11W67ASM#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F11W67ASM#70?
R5F11W67ASM#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F11W67ASM#70 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 R5F11W67ASM#70?
For technical support, including R5F11W67ASM#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F11W67ASM#70 requirements.
6.How does Aetrix verify that R5F11W67ASM#70 is sourced from the original manufacturer or authorized distributors?
All R5F11W67ASM#70 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 R5F11W67ASM#70 meets industry standards.
7.What is the process for return or replacement of R5F11W67ASM#70?
All R5F11W67ASM#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F11W67ASM#70, 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 R5F11W67ASM#70 part is unused and in its original packaging.
Return procedure for R5F11W67ASM#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F11W67ASM#70 Tags
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