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Renesas R5F104ACDSP#X0
- Part No.:
- R5F104ACDSP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F104ACDSP#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,697
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Product details
Overview
R5F104ACDSP#X0 from Renesas Electronics is a 32-bit RL78/G14 microcontroller with 16 KB flash, 2.5 KB RAM, and 4 KB data flash, operating at 32 MHz (44 DMIPS), supporting ultra-low-power modes (66 μA/MHz active, 0.60 μA RTC+LVD), and targeting industrial sensor nodes and battery-powered control systems.
For engineers reviewing the R5F104ACDSP#X0 datasheet, R5F104ACDSP#X0 pinout, R5F104ACDSP#X0 application, or R5F104ACDSP#X0 equivalent, this page delivers verified electrical specs, LQFP-30 package mapping, real-time clock and analog peripheral integration, and direct alternative part guidance for cost-sensitive industrial designs.
Technical Context
The R5F104ACDSP#X0 implements the RL78 CPU core with 3-stage pipeline, 1 MB address space, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a 10-bit A/D converter (20-channel), 8-bit D/A converter (2-channel), two comparators, and real-time clock with calendar and alarm functions.
Peripheral subsystems include UART/LIN (3 channels), I²C (4 channels), CSI (3 channels), 16-bit Timer Array Unit (TAU) with up to 8 channels, interval timer, watchdog timer, Data Transfer Controller (DTC), and Event Link Controller (ELC) for hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 32-bit CISC with 3-stage pipeline and multiply/accumulate instructions |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS for deterministic real-time control loops |
| Flash Memory | 16 KB code flash + 4 KB data flash - supports background rewriting and 1M write cycles |
| RAM Size | 2.5 KB on-chip RAM - sufficient for RTOS stacks and sensor buffer handling |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 3.3 V, and 5 V peripherals |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - extends battery life in intermittent-sensing applications |
| Analog Peripherals | 10-bit ADC (20 ch), dual 8-bit DAC, 2 comparators, internal 1.45 V reference & temp sensor |
Pinout & Package
Package: 30-pin LSSOP (7.62 mm, 0.65 mm pitch), industrial-grade (–40°C to +85°C), tape-and-reel (#X0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit, timer input, and debug clock source - enables serial comms and timing-critical event capture |
| P01 | RxD1 / TO00 / TRGCLKB | UART receive and timer output - supports full-duplex communication and PWM generation |
| P10–P17 | SPI/I²C/UART/SCL/SDA/TRDIODx | Multiplexed serial interfaces - allows flexible peripheral connectivity with software-configurable function assignment |
| P20–P23 | ANI0–ANI3 / AVREFP / AVREFM / ANO0 | Analog inputs with dedicated reference pins - ensures accurate 10-bit ADC measurements across supply range |
| RESET | Active-low reset input | Hardware reset with internal POR and LVD - eliminates need for external reset IC in most industrial designs |
| REGC | Regulator capacitor terminal | Requires 0.47–1 μF capacitor to VSS - stabilizes on-chip voltage regulator for low-noise analog operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 66 μA/MHz enables energy-efficient polling-based sensor acquisition without sleep/wake latency penalties |
| Self-programmable flash | Boot swap and flash shield window support secure firmware updates in field-deployed devices |
| Background data flash rewrite | BGO allows concurrent program execution and nonvolatile parameter storage - critical for logging and calibration |
| Event Link Controller (ELC) | Hardware chaining of 19–26 peripheral events eliminates CPU overhead in time-triggered control sequences |
| Dual comparator with window mode | Enables precise over/under-voltage monitoring and threshold detection without CPU polling |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - supports timestamping and scheduled wake-up in battery systems |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor node with wireless telemetry and local display. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based scheduling, UART-to-Bluetooth bridge, and low-power state transitions. Use Value: 0.60 μA STOP mode extends 2xAA battery life beyond 5 years; integrated RTC and BGO enable periodic wake-up and data logging without external components. |
Use Scenario: Residential HVAC controller with touch interface, ambient sensing, and relay actuation. IC Role / Device Role / Timing Role: Central MCU coordinating 10-bit ADC (NTC), dual DAC (fan speed, valve position), comparators (overtemp cutoff), and real-time scheduling. Use Value: On-chip 1.45 V reference and temp sensor eliminate external precision references; 4 KB data flash stores calibration coefficients and usage history. |
| Programmable Logic Relay | Energy Meter Front-End |
Use Scenario: DIN-rail mounted logic relay with configurable I/O, timer functions, and Modbus RTU communication. IC Role / Device Role / Timing Role: Deterministic real-time controller executing ladder logic via TAU timers and DTC-driven I/O scanning. Use Value: ELC-linked timer and GPIO events enable sub-millisecond response to input changes; 16 KB flash accommodates user-defined logic programs. |
Use Scenario: AC energy meter front-end performing voltage/current sampling, RMS calculation, and tamper detection. IC Role / Device Role / Timing Role: Analog acquisition engine with synchronized 10-bit ADC, comparator-based zero-crossing detection, and RTC-stamped event logging. Use Value: Dual comparators in window mode detect neutral-ground faults; STOP-mode RTC maintains time during mains failure for outage reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BCDSP#X0 | 32 KB flash, 4 KB RAM, same package/peripherals - adds 16 KB code space for larger firmware | Required when bootloader, OTA stack, or expanded feature set exceeds 16 KB flash limit | Select if future firmware growth or safety certification (e.g., IEC 60730) demands additional code margin |
| R5F104ADSP#X0 | 32 KB flash, 4 KB RAM, identical pinout - differs only in memory configuration and ordering suffix | Drop-in replacement where 16 KB flash is insufficient but no peripheral changes are needed | Choose for seamless upgrade path without PCB revision; shares same LSSOP-30 footprint and thermal profile |
Compared with R5F104ACDSP#X0, the R5F104BCDSP#X0 provides double flash/RAM for complex control algorithms, while R5F104ADSP#X0 offers identical packaging with higher memory - both retain identical low-power behavior, peripheral sets, and industrial temperature rating.
Availability
R5F104ACDSP#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, programmable logic relays, and energy meter front-ends requiring stable component supply across multi-year production cycles.
Supply support for R5F104ACDSP#X0 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 industrial, automotive, and IoT markets.
The RL78/G14 product line delivers true low-power performance (66 μA/MHz) with rich analog integration and real-time capabilities - designed specifically for cost-sensitive, battery-operated, and industrial control applications demanding reliability and long-term supply stability.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104ACDSP#X0?
The R5F104ACDSP#X0 operates at up to 32 MHz and delivers 44 DMIPS performance. This is achieved using the RL78 CPU core's 3-stage pipeline and optimized instruction set. The R5F104ACDSP#X0 maintains this performance across its full 1.6 V to 5.5 V supply range, enabling consistent real-time response in variable-voltage industrial environments.
Does the R5F104ACDSP#X0 support background data flash rewriting while executing code from main flash?
Yes, the R5F104ACDSP#X0 supports Background Operation (BGO) for data flash. Instructions can be fetched and executed from program flash memory while simultaneously rewriting the 4 KB data flash area. This capability is essential for applications requiring runtime parameter storage, such as calibration data logging or firmware update staging in the R5F104ACDSP#X0.
What package type and pin count does the R5F104ACDSP#X0 use, and what does the #X0 suffix indicate?
The R5F104ACDSP#X0 uses a 30-pin plastic LSSOP package (7.62 mm, 0.65 mm pitch). The #X0 suffix denotes embossed tape packaging per Renesas' standard ordering convention, indicating compatibility with automated SMT placement equipment. This package is rated for industrial temperature range (–40°C to +85°C) and features exposed thermal pad alternatives not used in this variant.
How many analog input channels and what resolution does the ADC in the R5F104ACDSP#X0 provide?
The R5F104ACDSP#X0 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19). It supports internal 1.45 V reference voltage and includes an on-chip temperature sensor. The ADC operates across the full 1.6 V to 5.5 V supply range, making it suitable for direct interfacing with diverse sensors without external signal conditioning in the R5F104ACDSP#X0.
Is the R5F104ACDSP#X0 pin-compatible with other RL78/G14 variants in the same LSSOP-30 package?
Yes, all RL78/G14 devices in the 30-pin LSSOP package - including R5F104AA–R5F104AG variants - share identical pinouts and electrical characteristics. The R5F104ACDSP#X0 is fully pin-compatible with R5F104ADSP#X0 and R5F104BCDSP#X0, allowing direct substitution where memory requirements align, without PCB layout changes or signal integrity revalidation.
R5F104ACDSP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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):
- 1.6V ~ 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:
R5F104ACDSP#X0 FAQ
1.How can I place an order for R5F104ACDSP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104ACDSP#X0 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 R5F104ACDSP#X0 reliable?
The price and inventory of R5F104ACDSP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104ACDSP#X0 is usually 5 days.
3.What payment methods are accepted for R5F104ACDSP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104ACDSP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104ACDSP#X0?
R5F104ACDSP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104ACDSP#X0 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 R5F104ACDSP#X0?
For technical support, including R5F104ACDSP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104ACDSP#X0 requirements.
6.How does Aetrix verify that R5F104ACDSP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104ACDSP#X0 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 R5F104ACDSP#X0 meets industry standards.
7.What is the process for return or replacement of R5F104ACDSP#X0?
All R5F104ACDSP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104ACDSP#X0, 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 R5F104ACDSP#X0 part is unused and in its original packaging.
Return procedure for R5F104ACDSP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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