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Renesas R5F1211AASP#70
- Part No.:
- R5F1211AASP#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 10-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F1211AASP#70.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G16 16K
- Quantity:
- Payment:
- Shipping:
Inventory:4,144
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Product details
Overview
R5F1211AASP#70 from Renesas Electronics is a 10-pin, low-power RL78/G16 microcontroller with 16 KB flash memory, 2 KB RAM, and integrated capacitive touch sensing (15-channel CTSU). It operates from 2.4–5.5 V, supports HALT/STOP modes, and delivers ultra-low-speed operation at 32.768 kHz for battery-powered consumer devices such as remote controls and smart home sensors.
For engineers reviewing the R5F1211AASP#70 datasheet, R5F1211AASP#70 pinout, R5F1211AASP#70 application, or R5F1211AASP#70 equivalent, this page provides verified technical context, real-world use cases, validated alternatives, and supply-chain-ready availability details - all grounded in Renesas' official R01DS0431EJ0130 Rev.1.30 documentation.
Technical Context
The R5F1211AASP#70 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, enabling instruction execution times adjustable from 0.0625 μs (16 MHz high-speed on-chip oscillator) to 30.5 μs (32.768 kHz subsystem clock). Its memory map spans 1 MB address space with banked 8-bit general-purpose registers.
It integrates a 10-bit A/D converter (4-channel analog input), 1-channel watchdog timer, 99-year real-time clock with alarm and correction, and simplified SPI/I²C/UART interfaces - all optimized for deterministic timing and low-voltage operation in consumer-grade ambient conditions (−40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and configurable instruction timing |
| Flash / RAM | 16 KB code flash (1 KB block erase), 2 KB on-chip RAM - sufficient for firmware with touch UI and sensor fusion |
| Operating Voltage | 2.4–5.5 V - enables direct battery operation (e.g., two AA/AAA cells or single Li-ion) |
| Temperature Range | −40°C to +85°C (A-grade) - certified for consumer electronics environments |
| A/D Converter | 10-bit resolution, 4-channel analog input with internal reference (0.815 V) - supports resistive sensor and battery monitoring |
| Capacitive Touch | 15-channel CTSU supporting self-capacitance (15 keys) or mutual-capacitance matrix (up to 16 keys) - no external components required |
| Oscillator Options | High-speed on-chip oscillator (16/8/4/2/1 MHz, ±1.0% accuracy) + 32.768 kHz subsystem clock - eliminates need for external crystals in cost-sensitive designs |
Pinout & Package
10-pin plastic LSSOP (4.4 × 3.6 mm, 0.65-mm pitch), exposed pad not present - compatible with standard surface-mount reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/RESET/INTP1 | Reset input / External interrupt 1 | Active-low reset with internal pull-up; dual-function pin enables hardware reset or wake-up trigger |
| P40/TOOL0/INTP2 | Debug interface / External interrupt 2 | Supports on-chip debugging via TOOL0; also serves as wake-up source during STOP mode |
| P137/INTP0/TI00 | External interrupt 0 / Timer I/O | Dedicated interrupt input with timer capture capability - ideal for pulse counting or edge-triggered event detection |
| VSS | Ground | Primary digital ground reference - must be connected to PCB ground plane with low-impedance path |
| VDD | Power supply | Single 2.4–5.5 V supply for entire device - decoupling capacitor (0.1 µF) required adjacent to pin |
| P04/ANI3/IVREF0/INTP3 | Analog input 3 / Internal reference / Interrupt 3 | Configurable as ADC channel, internal voltage reference source, or wake-up interrupt - shared function reduces pin count |
| P03/ANI2/IVCMP0/INTP4 | Analog input 2 / Comparator input / Interrupt 4 | Enables analog threshold detection without CPU intervention - used for battery low-voltage warning or sensor trip points |
| P02/PCLBUZ0/ANI1/VCOUT0 | Buzzer output / Analog input 1 / Voltage output | Drives piezoelectric buzzer directly; also provides programmable voltage output (VCOUT0) for biasing external circuits |
| P01/TOOLRxD/ANI0/INTP5 | Debug RX / Analog input 0 / Interrupt 5 | Combines debug communication, primary ADC channel (e.g., for temperature or light sensing), and wake-up capability |
| P00/TOOLTxD/INTP6/SO00 | Debug TX / Interrupt 6 / SPI output | Supports serial programming and diagnostics; doubles as SPI data output for peripheral control (e.g., LED driver) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP/HALT modes | Reduces current consumption to sub-μA levels - extends battery life in intermittent-sensing applications like wireless remotes |
| Integrated 15-channel CTSU | Eliminates external touch controller IC and associated BOM cost - supports slider, wheel, and multi-key layouts with firmware calibration |
| Self-programmable flash with no boot swap | Enables field firmware updates via UART or SPI without external programmer - critical for OTA-capable consumer devices |
| On-chip high-speed oscillator (±1.0%) | Removes need for external crystal and load capacitors - simplifies layout, reduces component count, and improves reliability |
| Real-time clock with 99-year calendar | Provides accurate timekeeping and alarm scheduling without external RTC chip - essential for scheduled wake-up and logging |
| 10-bit A/D converter with internal reference | Delivers stable measurement across voltage and temperature - enables precise battery voltage monitoring and sensor signal conditioning |
Applications
| Smart Remote Control | Wireless Sensor Node |
|---|---|
Use Scenario: IR or RF-based universal remote with touch-sensitive buttons and backlight control. IC Role / Device Role / Timing Role: Main system controller managing touch input decoding, IR modulation, power sequencing, and low-power state transitions. Use Value: Integrated CTSU and STOP-mode current of 0.55 μA enable >1-year battery life using two AAA cells while maintaining responsive touch feedback. |
Use Scenario: Battery-powered environmental sensor (temperature/humidity) transmitting data via BLE or sub-GHz radio. IC Role / Device Role / Timing Role: Sensor hub aggregating ADC readings, executing wake-on-event logic, and managing radio interface timing. Use Value: On-chip 10-bit ADC with internal reference ensures consistent measurement accuracy across battery discharge; RTC enables precise sleep/wake intervals. |
| Appliance Control Panel | Personal Health Monitor |
Use Scenario: Touch-enabled front panel for microwave oven or coffee maker with status LEDs and buzzer feedback. IC Role / Device Role / Timing Role: Human-machine interface processor handling capacitive key scanning, buzzer tone generation, and LED PWM control. Use Value: P02's integrated PCLBUZ0 driver eliminates external transistor; CTSU supports waterproof overlay design with minimal sensitivity drift. |
Use Scenario: Portable blood oxygen (SpO₂) or heart rate monitor with optical sensor and OLED display. IC Role / Device Role / Timing Role: Signal acquisition controller synchronizing LED drive pulses, photodiode sampling, and real-time signal processing. Use Value: 16 MHz CPU speed and 2 KB RAM support real-time FIR filtering of PPG signals; HALT mode minimizes noise during analog acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1211CASP#70 | Same package and pinout; 32 KB flash (vs. 16 KB), identical peripherals and timing specs | Required when firmware size exceeds 16 KB or future-proofing for feature expansion is needed | Select if bootloader, crypto stack, or GUI assets demand >16 KB code space - no PCB change required |
| RL78/G14 R5F112GADSP#30 | 10-pin SSOP, 16 KB flash, but lacks CTSU and has only 8-bit ADC (no internal reference) | Suitable for non-touch applications where cost is prioritized over HMI capability | Choose only when touch interface is unnecessary and existing designs already use G14 toolchain - requires firmware adaptation |
Compared with R5F1211CASP#70, the R5F1211AASP#70 trades flash capacity for lower unit cost and smaller footprint; compared with RL78/G14 R5F112GADSP#30, it adds capacitive touch and higher-resolution ADC at marginally higher price - making it optimal for touch-centric consumer products.
Availability
R5F1211AASP#70 is available at Aetrix Electronics and suitable for smart remote controls, wireless sensor nodes, appliance control panels, and personal health monitors requiring stable component supply across production lifecycles.
Supply support for R5F1211AASP#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and consumer markets.
The RL78/G16 product line targets cost-sensitive, ultra-low-power consumer and industrial applications requiring integrated touch, precision analog, and robust debug - with R5F1211AASP#70 optimized for 10-pin space-constrained designs.
FAQ
What is the maximum operating frequency of the R5F1211AASP#70?
The R5F1211AASP#70 supports up to 16 MHz operation using its high-speed on-chip oscillator, delivering a minimum instruction execution time of 0.0625 μs. This frequency is factory-trimmed and maintains ±1.0% accuracy across −20°C to +85°C at VDD = 2.4–5.5 V - eliminating need for external crystal in most consumer applications.
Does the R5F1211AASP#70 support in-system programming?
Yes, the R5F1211AASP#70 supports self-programming of its 16 KB code flash memory via on-chip debug interface (TOOL0/TOOLRxD/TOOLTxD pins) or through user firmware using UART or simplified SPI. No external programmer is required, and flash writes occur after full-block erase - consistent with Renesas' documented flash shield window behavior.
How many capacitive touch channels does the R5F1211AASP#70 provide?
The R5F1211AASP#70 integrates a 15-channel Capacitive Touch Sensing Unit (CTSU) supporting both self-capacitance (15 independent keys) and mutual-capacitance (matrix configuration up to 16 keys). All channels share the same 10-pin LSSOP footprint - no additional pins or external components are needed for basic touch implementation.
What are the power supply requirements for the R5F1211AASP#70?
The R5F1211AASP#70 operates from a single 2.4–5.5 V supply on the VDD pin, with VSS as the return path. It draws 61 μA/MHz in active mode at 125°C and as low as 0.55 μA in STOP mode - enabling direct operation from two alkaline AA/AAA cells (3.0 V nominal) or single Li-ion (3.0–4.2 V) without voltage regulation in many use cases.
Is the R5F1211AASP#70 pin-compatible with other RL78/G16 variants?
Yes, the R5F1211AASP#70 shares identical 10-pin LSSOP pinout and electrical characteristics with all other SP-package RL78/G16 10-pin variants (e.g., R5F1211CASP#70, R5F1211AGSP#70), differing only in flash size (16 KB vs. 32 KB) and temperature grade (A-grade: −40°C to +85°C). This allows drop-in replacement within the same package family.
R5F1211AASP#70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 10-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G16
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- Capacitive Touch, POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 7
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 4x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1211AASP#70 FAQ
1.How can I place an order for R5F1211AASP#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1211AASP#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 R5F1211AASP#70 reliable?
The price and inventory of R5F1211AASP#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1211AASP#70 is usually 5 days.
3.What payment methods are accepted for R5F1211AASP#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1211AASP#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1211AASP#70?
R5F1211AASP#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1211AASP#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 R5F1211AASP#70?
For technical support, including R5F1211AASP#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1211AASP#70 requirements.
6.How does Aetrix verify that R5F1211AASP#70 is sourced from the original manufacturer or authorized distributors?
All R5F1211AASP#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 R5F1211AASP#70 meets industry standards.
7.What is the process for return or replacement of R5F1211AASP#70?
All R5F1211AASP#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1211AASP#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 R5F1211AASP#70 part is unused and in its original packaging.
Return procedure for R5F1211AASP#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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