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Renesas R5F104ACASP#10
- Part No.:
- R5F104ACASP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F104ACASP#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,342
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Product details
Overview
R5F104ACASP#10 from Renesas Electronics is a 16-bit RL78/G14 microcontroller featuring 16 KB flash memory, 4 KB data flash, and 2.5 KB RAM in a 30-pin LSSOP package. It operates from 1.6 V to 5.5 V, delivers 44 DMIPS at 32 MHz, and achieves ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), targeting battery-powered sensor nodes and smart home control units.
For engineers reviewing the R5F104ACASP#10 datasheet, R5F104ACASP#10 pinout, R5F104ACASP#10 application, or R5F104ACASP#10 equivalent, key selection considerations include its 30-pin LSSOP footprint, integrated 10-bit ADC with 8 analog inputs, dual UART/LIN support, and real-time clock with calendar function - all validated for consumer-grade (-40 to +85°C) operation.
Technical Context
The R5F104ACASP#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs min @ 32 MHz to 30.5 µs @ 32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz), Event Link Controller (ELC) for peripheral event chaining, and Data Transfer Controller (DTC) supporting block and chain transfers triggered by interrupts.
Its mixed-signal subsystem includes an 8/10-bit ADC (8 channels, internal 1.45 V reference, temperature sensor), 8-bit DAC (0–VDD output), two comparators, and programmable low-voltage detection (14-level LVD). Power management features HALT, STOP, and SNOOZE modes, with dedicated POR and reset circuitry enabling robust operation in intermittent-power environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Max Clock Speed | 32 MHz - enables 44 DMIPS performance for real-time control tasks |
| Flash Memory | 16 KB code flash - sufficient for compact firmware with bootloader and safety checks |
| Data Flash | 4 KB - supports 1,000,000 write cycles for parameter storage without external EEPROM |
| RAM | 2.5 KB - accommodates stack, heap, and real-time buffers for sensor fusion algorithms |
| ADC | 10-bit resolution, 8 input channels, internal 1.45 V reference - eliminates need for external voltage reference in cost-sensitive designs |
| Operating Voltage | 1.6 V to 5.5 V - allows direct interface with Li-ion, alkaline, or USB-powered systems |
| Temp Range | -40°C to +85°C - qualified for consumer and industrial ambient conditions |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm × 3.94 mm, 0.65 mm pitch), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; debug clock - enables serial communication and timing-critical I/O |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; debug clock - supports full-duplex UART and pulse generation |
| P10–P17 | SPI/I²C/UART peripherals | Multi-function serial interfaces (CSI, UART, I²C) with peripheral I/O redirection - reduces PCB routing complexity |
| P20–P23 | ANI0–ANI3 / AVREFP / AVREFM | Analog inputs with dedicated reference pins - ensures stable ADC measurements across supply variations |
| P30–P31 | INTP3 / INTP4 / RTC1HZ / PCLBUZ0 | Interrupt-capable GPIO with real-time clock tick output and buzzer drive - simplifies alarm and timing functions |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up - ensures reliable startup after brownout or power cycle |
| VDD / VSS | Power supply / ground | Dual power pins with REGC capacitor connection point - improves noise immunity for analog and digital domains |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS - stabilizes internal voltage regulator for consistent low-power operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT (0.60 μA), STOP (0.60 μA), and SNOOZE (fast wake-up from low-power sleep) extend battery life in sensor endpoints |
| On-chip debug & self-programming | Integrated on-chip debug interface and flash shield window enable field firmware updates without external tools |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and clock correction - eliminates need for external RTC IC in time-stamped logging |
| Event Link Controller (ELC) | Links 19–26 peripheral events without CPU intervention - reduces interrupt latency and firmware overhead |
| Background operation (BGO) | Executes code from flash while rewriting data flash - enables seamless parameter updates during runtime |
| Dual UART with LIN support | Two independent UART channels, one with LIN bus compliance - supports automotive body electronics and industrial networks |
Applications
| Smart Thermostat Control | Wireless Sensor Node |
|---|---|
|
Use Scenario: Local temperature/humidity sensing, display driving, and HVAC actuation via relay or triac. IC Role / Device Role / Timing Role: Main system controller executing PID loop, managing LCD segments, and handling IR remote decoding. Use Value: Integrated 10-bit ADC, RTC, and low-power STOP mode enable accurate environmental monitoring with multi-year battery life. |
Use Scenario: Battery-powered node collecting ambient light, motion, and door/window status for BLE gateway reporting. IC Role / Device Role / Timing Role: Sensor aggregator and wireless interface coordinator with wake-on-interrupt capability. Use Value: 0.60 μA RTC+LVD mode and programmable SNOOZE allow sub-μA average current draw between sensor reads. |
| Home Appliance UI Panel | Industrial Motor Monitor |
|
Use Scenario: Keypad scanning, LED/buzzer feedback, and communication with main MCU over UART or I²C. IC Role / Device Role / Timing Role: Dedicated user interface co-processor offloading button debounce, display refresh, and audio alerts. Use Value: On-chip PCLBUZ0 and 8-channel ADC simplify front-panel design without external drivers or converters. |
Use Scenario: Monitoring motor current, temperature, and fault signals in pump or fan controllers. IC Role / Device Role / Timing Role: Safety-critical monitor performing analog watchdog checks and triggering shutdown via GPIO. Use Value: 14-level LVD, comparator window mode, and fast HALT-mode wake-up ensure responsive fault response within <100 µs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BCASP#10 | 32 KB flash, 4 KB data flash, 5.5 KB RAM - same 30-pin LSSOP package and peripheral set | Supports larger firmware images (e.g., OTA update stack + crypto library) | Select when firmware size exceeds 16 KB but pin compatibility and layout reuse are mandatory |
| R5F104ADASP#10 | 32 KB flash, 4 KB data flash, 4 KB RAM - identical package, higher RAM for buffer-intensive protocols | Better suited for Modbus RTU or CAN FD gateway firmware with large message queues | Choose when real-time data buffering or protocol stack memory footprint requires >2.5 KB RAM |
Compared with R5F104BCASP#10 and R5F104ADASP#10, the R5F104ACASP#10 provides optimal cost/performance balance for resource-constrained embedded control where 16 KB flash and 2.5 KB RAM meet functional requirements without over-provisioning.
Availability
R5F104ACASP#10 is available at Aetrix Electronics and suitable for smart thermostat control, wireless sensor nodes, home appliance UI panels, industrial motor monitors, and battery-powered IoT edge devices requiring stable component supply and long-term manufacturability.
Supply support for R5F104ACASP#10 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 management solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated general-purpose applications requiring rich analog integration and robust real-time performance.
FAQ
What is the maximum operating frequency of the R5F104ACASP#10?
The R5F104ACASP#10 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, it delivers 44 DMIPS performance while maintaining 66 μA/MHz active current consumption. The oscillator accuracy is ±1.0% across 1.8–5.5 V supply and -20 to +85°C ambient, making it suitable for timing-critical control loops without external crystal dependency.
Does the R5F104ACASP#10 include a real-time clock (RTC)?
Yes, the R5F104ACASP#10 integrates a full-featured RTC with calendar support (99-year range), alarm interrupt, and clock correction function. It operates independently in STOP mode with only RTC and LVD enabled, drawing just 0.60 μA - enabling precise timekeeping in battery-backed applications like data loggers and smart meters without external RTC ICs.
How much flash and RAM does the R5F104ACASP#10 provide?
The R5F104ACASP#10 contains 16 KB of code flash memory, 4 KB of data flash memory (rated for 1,000,000 write cycles), and 2.5 KB of on-chip RAM. This configuration supports compact firmware with bootloader, safety monitoring, and basic communication stacks while reserving data flash for non-volatile parameter storage such as calibration values or device configuration.
What serial interfaces are available on the R5F104ACASP#10?
The R5F104ACASP#10 provides three UART channels (one with LIN-bus support), up to ten I²C/simplified I²C channels, and three to eight CSI (SPI-compatible) channels. These interfaces are multiplexed across P10–P17 and P00–P01 pins, with peripheral I/O redirection registers enabling flexible pin assignment - ideal for connecting sensors, displays, and wireless modules in space-constrained layouts.
Is the R5F104ACASP#10 pin-compatible with other RL78/G14 variants in LSSOP packages?
Yes, the R5F104ACASP#10 shares identical pinout and package (30-pin LSSOP) with all other RL78/G14 members ending in "ASP#10", including R5F104AAASP#10 through R5F104AGASP#10. This enables direct hardware scalability - for example, upgrading to R5F104BCASP#10 (32 KB flash) or R5F104ADASP#10 (32 KB flash + 4 KB RAM) requires no PCB changes.
R5F104ACASP#10 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:
- 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:
R5F104ACASP#10 FAQ
1.How can I place an order for R5F104ACASP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104ACASP#10 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 R5F104ACASP#10 reliable?
The price and inventory of R5F104ACASP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104ACASP#10 is usually 5 days.
3.What payment methods are accepted for R5F104ACASP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104ACASP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104ACASP#10?
R5F104ACASP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104ACASP#10 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 R5F104ACASP#10?
For technical support, including R5F104ACASP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104ACASP#10 requirements.
6.How does Aetrix verify that R5F104ACASP#10 is sourced from the original manufacturer or authorized distributors?
All R5F104ACASP#10 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 R5F104ACASP#10 meets industry standards.
7.What is the process for return or replacement of R5F104ACASP#10?
All R5F104ACASP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104ACASP#10, 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 R5F104ACASP#10 part is unused and in its original packaging.
Return procedure for R5F104ACASP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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