Renesas R5F104AAASP#70
- Part No.:
- R5F104AAASP#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F104AAASP#70.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G14 16K
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104AAASP#70 from Renesas is a 30-pin LSSOP-packaged RL78/G14 16-bit microcontroller with 16 KB flash, 2.5 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD mode) for consumer-grade embedded control in battery-powered sensors, home appliances, and industrial HMI panels.
For engineers reviewing the R5F104AAASP#70 datasheet, R5F104AAASP#70 pinout, R5F104AAASP#70 application, or R5F104AAASP#70 equivalent, key selection considerations include its 30-pin LSSOP-0.65mm package, 1.6–5.5 V supply range, integrated 10-bit ADC (8 channels), real-time clock with calendar, and support for UART, CSI, and I²C interfaces in space-constrained designs.
Technical Context
The R5F104AAASP#70 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (@32 MHz) to 30.5 µs (@32.768 kHz), and includes multiply/divide/accumulate instructions. It integrates a high-accuracy ±1.0% on-chip oscillator (selectable from 1–64 MHz) and operates across -40°C to +85°C (A-grade).
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 1-channel 12-bit interval timer, 1-channel real-time clock with alarm/calendar, 1-channel watchdog timer, and event-link controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / RAM | 16 KB code flash memory (1 KB block size) and 2.5 KB on-chip RAM |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - supports battery life >10 years in RTC-only monitoring |
| ADC | 10-bit resolution, 8 input channels, internal 1.45 V reference and temperature sensor |
| Timers | 8-channel TAU, 1-channel 12-bit interval timer, 1-channel RTC (99-year calendar), 1-channel WDT |
| Serial Interfaces | 3 CSI channels, 3 UART/LIN channels, 4 I²C/simplified I²C channels |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm × 4.4 mm, 0.65 mm pitch), surface-mount, consumer-grade (A: -40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; 16-bit timer input; trace clock A - enables debug trace and timing-critical serial comms |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; 16-bit timer output; trace clock B - supports full-duplex UART with hardware timing capture |
| P10–P17 | CSI1/SCL11/SDA11/TRDIOx | Multiplexed serial interface pins - configurable as CSI, I²C, or TRDI/O for flexible peripheral expansion |
| P20–P23 | ANI0–ANI3 / AVREFP/AVREFM/ANO0 | Analog inputs with dedicated reference pins - enables ratiometric sensing and precision analog front-end design |
| P30–P31 | INTP3 / INTP4 / RTC1HZ / PCLBUZ0 | Interrupt-capable GPIO with RTC tick output and buzzer drive - supports low-power wake-up and audible feedback |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - ensures reliable power-on and fault recovery |
| VDD / VSS | Power supply / ground | Dual power pins with REGC capacitor requirement - mandates 0.47–1 µF decoupling for stable LDO regulation |
| REGC | Regulator capacitor terminal | Connects to VSS via 0.47–1 µF capacitor - critical for internal voltage regulator stability and low-noise operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT mode | 66 μA/MHz active current enables >5-year battery life in intermittent-sensing applications |
| On-chip RTC with calendar | 99-year date/time tracking, alarm, and clock correction - eliminates external RTC IC and backup battery |
| Self-programmable flash | Boot swapping and flash shield window support secure firmware updates without external programmer |
| Background data flash rewrite | BGO allows concurrent program execution during 1M-cycle data flash writes - no runtime interruption |
| Event Link Controller (ELC) | Hardware chaining of 19–26 peripheral events - reduces CPU load and interrupt latency in real-time control |
Applications
| Smart Thermostat Sensor Node | Industrial Panel Controller |
|---|---|
Use Scenario: Battery-powered room temperature/humidity node with wireless reporting every 5 minutes. IC Role / Device Role / Timing Role: Main system controller executing sensor readout, RTC-based scheduling, and UART-to-Bluetooth bridge logic. Use Value: 0.60 μA STOP mode extends CR2032 battery life beyond 7 years; integrated 10-bit ADC eliminates external signal conditioning. | Use Scenario: Local HMI panel with pushbuttons, LED indicators, and RS-485 communication to PLC. IC Role / Device Role / Timing Role: Real-time I/O manager handling button debouncing, LED PWM, and UART-to-RS485 protocol translation. Use Value: ELC-driven timer-triggered GPIO toggling enables jitter-free LED dimming; 3 UART channels support simultaneous debug, display, and fieldbus comms. |
| Home Appliance Motor Control | Energy Meter Data Logger |
Use Scenario: Fan speed controller with thermal protection and user interface in compact white-goods PCB. IC Role / Device Role / Timing Role: Dedicated motor timing engine using TAU PWM outputs and analog comparator for overtemperature shutdown. Use Value: On-chip comparator with window mode detects thermal fault within 1 µs; 16 KB flash accommodates safety-certified motor algorithms. | Use Scenario: Standalone kWh logger capturing voltage/current samples hourly and storing totals in data flash. IC Role / Device Role / Timing Role: Time-synchronized data acquisition unit with RTC-triggered sampling and background data flash logging. Use Value: BGO-enabled data flash writes preserve 1M-cycle endurance while recording 10+ years of energy history; 4 KB data flash provides nonvolatile storage without EEPROM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BAANA#U0 | 32-pin HWQFN, 16 KB flash, 2.5 KB RAM, same core/peripherals, but higher pin count and 0.5 mm pitch | Requires PCB redesign for QFN layout and reflow profile; better thermal performance in sealed enclosures | Select when board space permits smaller footprint and thermal management is critical |
| R5F104ACASP#70 | Same 30-pin LSSOP package, 32 KB flash, 5.5 KB RAM, identical pinout and voltage specs | Direct drop-in upgrade path for future firmware expansion; no layout change required | Select when additional flash/RAM headroom is needed for feature-rich firmware without hardware revision |
Compared with R5F104BAANA#U0 and R5F104ACASP#70, the R5F104AAASP#70 offers the smallest PCB footprint among A-grade RL78/G14 variants while maintaining full peripheral compatibility - ideal for cost-sensitive, space-constrained consumer designs where 16 KB flash suffices.
Availability
R5F104AAASP#70 is available at Aetrix Electronics and suitable for smart thermostat sensor nodes, industrial HMI panels, and home appliance motor controllers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F104AAASP#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCU performance for general-purpose embedded control, targeting battery-operated sensors, appliances, and industrial HMIs where energy efficiency and integration reduce BOM cost.
FAQ
What is the maximum operating frequency of the R5F104AAASP#70?
The R5F104AAASP#70 supports up to 32 MHz operation using the high-speed on-chip oscillator. Its minimum instruction execution time is 0.03125 µs at this frequency, and it also supports ultra-low-speed operation down to 32.768 kHz (30.5 µs per instruction) for RTC and LVD-only modes. The oscillator accuracy is ±1.0% across 1.8–5.5 V and -20°C to +85°C.
Does the R5F104AAASP#70 include an integrated ADC, and what are its specifications?
Yes, the R5F104AAASP#70 includes a 10-bit resolution successive-approximation ADC with 8 analog input channels. It operates across the full 1.6–5.5 V supply range and features an internal 1.45 V reference voltage and integrated temperature sensor. Input voltage range is 0 V to VDD, enabling ratiometric measurements without external references.
What debug and programming interfaces does the R5F104AAASP#70 support?
The R5F104AAASP#70 supports on-chip debug via the single-wire debug interface using pins P40 (TOOL0) and P50 (TRGIOA/TRJO0). It includes full self-programming capability with boot swapping and flash shield window protection. No external debugger is required for firmware development or field updates.
Can the R5F104AAASP#70 operate from a 1.8 V supply, and what peripherals remain functional?
Yes, the R5F104AAASP#70 operates from 1.6 V to 5.5 V, including 1.8 V. At 1.8 V, all core functions, 10-bit ADC (with internal 1.45 V reference), RTC, 16-bit timers, UART, CSI, and I²C remain fully operational. The high-speed oscillator is specified down to 1.8 V, supporting 16 MHz operation with ±1.0% accuracy.
What is the data flash endurance and rewrite voltage range for the R5F104AAASP#70?
The R5F104AAASP#70 includes 4 KB of data flash memory rated for 1,000,000 write/erase cycles (typical). Rewrites can be performed across the full supply range of 1.8 V to 5.5 V, enabling in-system updates without special voltage sequencing. Background operation (BGO) allows CPU execution from program memory during data flash writes.
R5F104AAASP#70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b; D/A 1x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104AAASP#70 FAQ
1.How can I place an order for R5F104AAASP#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104AAASP#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 R5F104AAASP#70 reliable?
The price and inventory of R5F104AAASP#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104AAASP#70 is usually 5 days.
3.What payment methods are accepted for R5F104AAASP#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104AAASP#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104AAASP#70?
R5F104AAASP#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104AAASP#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 R5F104AAASP#70?
For technical support, including R5F104AAASP#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104AAASP#70 requirements.
6.How does Aetrix verify that R5F104AAASP#70 is sourced from the original manufacturer or authorized distributors?
All R5F104AAASP#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 R5F104AAASP#70 meets industry standards.
7.What is the process for return or replacement of R5F104AAASP#70?
All R5F104AAASP#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104AAASP#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 R5F104AAASP#70 part is unused and in its original packaging.
Return procedure for R5F104AAASP#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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