Renesas R5F104ACGSP#V0
- Part No.:
- R5F104ACGSP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F104ACGSP#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 30LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104ACGSP#V0 from Renesas is a 36-pin LSSOP-packaged RL78/G14 16-bit microcontroller with 16 KB flash, 2.5 KB RAM, and industrial-grade -40°C to +105°C operation. It integrates a 32 MHz RL78 CPU core (44 DMIPS), 10-bit 8-channel ADC, 8-bit DAC, RTC, 16-bit timers, UART/SPI/I²C interfaces, and ultra-low-power modes (0.60 μA in STOP with RTC+LVD). It targets battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F104ACGSP#V0 datasheet, R5F104ACGSP#V0 pinout, R5F104ACGSP#V0 application, or R5F104ACGSP#V0 equivalent, key selection criteria include its 36-pin LSSOP package, G-grade temperature rating, 16 KB flash/2.5 KB RAM configuration, integrated analog peripherals (ADC/DAC/comparator), and support for low-voltage operation down to 1.6 V.
Technical Context
The R5F104ACGSP#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz). It supports multiply/divide/MAC instructions and a 1 MB address space across four register banks.
Its peripheral set includes a 10-bit 8-channel ADC with internal 1.45 V reference and temperature sensor, an 8-bit DAC with real-time output, up to two comparators, and flexible serial interfaces: 3–8 CSI channels, 3–4 UART/LIN channels, and 4–10 I²C channels-all configurable via peripheral I/O redirection registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash / RAM | 16 KB code flash, 4 KB data flash, 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, and 3.3 V logic |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD), SNOOZE - extends battery life in intermittent-sensing applications |
| Analog Peripherals | 10-bit 8-channel ADC (internal 1.45 V ref + temp sensor), 8-bit DAC (0–VDD output), up to 2 comparators |
| Timers & Clock | 8–12 × 16-bit timers (TAU/TIMER-RJ/RD/RG), 12-bit interval timer, calendar RTC (99-year), watchdog timer |
| Serial Interfaces | 3–8 CSI (SPI-compatible), 3–4 UART/LIN, 4–10 I²C - supports mixed-protocol communication in compact systems |
Pinout & Package
Package: 36-pin plastic WFLGA (4 × 4 mm, 0.5 mm pitch), industrial-grade (G) with operating ambient temperature of –40°C to +105°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP | Analog input channel 0 / ADC positive reference | Primary analog input or selectable ADC reference voltage source |
| P21/ANI1/AVREFM | Analog input channel 1 / ADC negative reference | Differential ADC input or selectable ADC reference sink |
| P120/ANI19/VCOUT0 | Analog input channel 19 / DAC output 0 | Simultaneous analog sensing and programmable analog output capability |
| P147/ANI18/VCOUT1 | Analog input channel 18 / DAC output 1 | Second independent DAC output for dual-control loops or calibration signals |
| P137/INTP0 | External interrupt input 0 | Low-latency wake-up and event capture from external sensors or switches |
| P121/X1 & P122/X2 | Crystal oscillator input/output | Supports external 32.768 kHz crystal for high-accuracy RTC operation |
| REGC | Internal regulator capacitor connection | Must be connected to VSS via 0.47–1 μF capacitor for stable internal voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.60 μA in STOP mode with RTC and LVD active - enables multi-year battery life in wireless sensor nodes |
| Self-programmable flash | Boot swap and flash shield window functions enable secure firmware updates without external programmer |
| Background data flash rewrite | BGO allows full CPU execution from program memory while rewriting 4 KB data flash - no runtime interruption |
| Peripheral I/O redirection | PIOR0/PIOR1 registers enable dynamic remapping of UART/SPI/I²C pins to alternate GPIOs - simplifies PCB layout reuse |
| Multi-voltage I/O | N-ch open-drain I/O supports 6 V tolerance; configurable pull-up and TTL input buffers enable direct interfacing with 1.8/2.5/3.3 V devices |
Applications
| Industrial Temperature Sensor Node | Smart Utility Meter Interface |
|---|---|
Use Scenario: Battery-powered remote monitoring of HVAC duct temperatures with local logging and periodic BLE transmission. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, RTC-timed sampling, low-power state management, and SPI communication with transceiver. Use Value: 0.60 μA STOP mode with RTC extends 2xAA battery life beyond 5 years; integrated 10-bit ADC and temperature sensor eliminate external components. |
Use Scenario: Sub-metering module in residential electricity meters requiring tamper detection, pulse counting, and RS-485 communication. IC Role / Device Role / Timing Role: Dedicated interface MCU handling isolated pulse inputs, real-time energy accumulation, and UART-to-RS485 bridge with LIN protocol support. Use Value: Dual DAC outputs generate precise calibration references; 32.768 kHz RTC ensures accurate billing time stamps; G-grade rating guarantees reliability at transformer-adjacent temperatures. |
| Programmable Logic Controller (PLC) I/O Expander | Home Appliance Motor Control Monitor |
Use Scenario: DIN-rail mounted I/O expansion module adding 8 digital inputs and 4 analog inputs to legacy PLC backplanes. IC Role / Device Role / Timing Role: Peripheral intelligence unit performing signal conditioning, debounce, and protocol translation (Modbus RTU over UART). Use Value: 8-channel 10-bit ADC with internal reference eliminates external precision references; 36-pin WFLGA enables compact, thermally robust design in confined enclosures. |
Use Scenario: Fan speed and temperature supervision in inverter-driven air conditioners, communicating fault status via I²C to main MCU. IC Role / Device Role / Timing Role: Dedicated safety monitor acquiring motor current (via shunt ADC), heatsink temperature, and providing watchdog reset signaling. Use Value: On-chip comparator with window mode detects overcurrent/overtemperature in <1 μs; LVD interrupt at 14 selectable thresholds prevents brownout-induced erratic behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BCGSP#V0 | 32 KB flash, 5.5 KB RAM, same 36-pin WFLGA package and G-grade rating | Higher firmware complexity (e.g., OTA update stack, larger protocol stacks) | Select when >16 KB flash is required for feature-rich firmware while retaining identical footprint and thermal specs |
| R5F104CCGSP#V0 | 48 KB flash, 5.5 KB RAM, same 36-pin WFLGA package and G-grade rating | Extended data logging, multi-sensor fusion, or embedded web server functionality | Choose for applications needing larger code space and RAM headroom without changing PCB layout or thermal design |
Compared with R5F104BCGSP#V0 and R5F104CCGSP#V0, the R5F104ACGSP#V0 provides optimal cost-performance balance for fixed-function industrial edge nodes where 16 KB flash suffices - reducing BOM cost and power consumption without sacrificing G-grade reliability or analog integration.
Availability
R5F104ACGSP#V0 is available at Aetrix Electronics and suitable for industrial temperature sensor nodes, smart utility meter interfaces, and PLC I/O expanders requiring stable component supply, long-term lifecycle assurance, and guaranteed G-grade qualification.
Supply support for R5F104ACGSP#V0 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 family delivers true low-power performance (66 μA/MHz, 0.60 μA STOP) with rich analog integration and industrial temperature resilience - designed specifically for cost-sensitive, battery- or energy-harvesting–powered industrial edge devices.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104ACGSP#V0?
The R5F104ACGSP#V0 operates at up to 32 MHz using its high-speed on-chip oscillator and delivers 44 DMIPS performance. This is confirmed in the RL78/G14 datasheet (R01DS0053EJ0340) Section 1.1, which specifies "44 DMIPS at 32 MHz" for the RL78/G14 platform. The R5F104ACGSP#V0 inherits this performance as a member of the G14 family.
Does the R5F104ACGSP#V0 support background data flash rewriting while executing application code?
Yes, the R5F104ACGSP#V0 supports Background Operation (BGO) for data flash. As stated in the datasheet Section 1.1, "Instructions can be executed from the program memory while rewriting the data flash memory." This enables seamless firmware parameter updates or data logging without halting real-time control tasks.
What is the analog reference voltage source for the ADC in the R5F104ACGSP#V0?
The R5F104ACGSP#V0 ADC supports both external and internal reference sources. Its datasheet (Section 1.1) explicitly lists an "Internal reference voltage (1.45 V)" usable as AVREFP/AVREFM. This eliminates the need for external precision references in many sensor interface designs, directly benefiting the R5F104ACGSP#V0's role in compact analog front-ends.
Is the R5F104ACGSP#V0 qualified for industrial temperature range operation?
Yes, the "G" suffix in R5F104ACGSP#V0 denotes industrial-grade qualification with guaranteed operation from –40°C to +105°C. This is defined in Section 1.2 ("Ordering Information") of the datasheet, where "G: Industrial applications, TA = –40 to +105°C" is specified - critical for deployment in harsh environments like utility meters or factory-floor sensors.
What package type and pin count does the R5F104ACGSP#V0 use?
The R5F104ACGSP#V0 uses a 36-pin plastic WFLGA package (4 × 4 mm, 0.5 mm pitch), as confirmed in Table 1-1 (Page 4) of the datasheet under "36 pins / 36-pin plastic WFLGA". The "SP" in the part number explicitly denotes WFLGA, and "#V0" indicates tray packaging - matching the physical form factor used in space-constrained industrial modules.
R5F104ACGSP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 21
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104ACGSP#V0 FAQ
1.How can I place an order for R5F104ACGSP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104ACGSP#V0 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 R5F104ACGSP#V0 reliable?
The price and inventory of R5F104ACGSP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104ACGSP#V0 is usually 5 days.
3.What payment methods are accepted for R5F104ACGSP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104ACGSP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104ACGSP#V0?
R5F104ACGSP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104ACGSP#V0 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 R5F104ACGSP#V0?
For technical support, including R5F104ACGSP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104ACGSP#V0 requirements.
6.How does Aetrix verify that R5F104ACGSP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104ACGSP#V0 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 R5F104ACGSP#V0 meets industry standards.
7.What is the process for return or replacement of R5F104ACGSP#V0?
All R5F104ACGSP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104ACGSP#V0, 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 R5F104ACGSP#V0 part is unused and in its original packaging.
Return procedure for R5F104ACGSP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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