My Inquiry
My Account
Renesas R5F104AFASP#V0
- Part No.:
- R5F104AFASP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F104AFASP#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,225
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F104AFASP#V0 from Renesas is a 44-pin LSSOP-packaged 16-bit RL78/G14 microcontroller with 96 KB flash, 12 KB RAM, and 4 KB data flash, operating from 1.6–5.5 V at -40°C to +85°C (A-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates 10-bit ADC (20 ch), UART/I²C/CSI interfaces, RTC, and on-chip debug.
For engineers reviewing the R5F104AFASP#V0 datasheet, R5F104AFASP#V0 pinout, R5F104AFASP#V0 application, or R5F104AFASP#V0 equivalent, this page provides verified technical context, package mapping, real-world use cases, and validated alternative options for industrial control, sensor nodes, and battery-powered HMI designs.
Technical Context
The R5F104AFASP#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). It includes dedicated hardware accelerators for multiply/divide/accumulate operations and a 1 MB address space.
Its peripheral set is managed via Event Link Controller (ELC) for event-driven peripheral chaining and Data Transfer Controller (DTC) for interrupt-triggered memory transfers without CPU intervention. The device supports background operation during data flash rewriting (BGO) and uses a configurable peripheral I/O redirection register (PIOR0/1) to assign alternate functions to pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz - enables 44 DMIPS performance for real-time control loops |
| Flash Memory | 96 KB code flash - sufficient for complex firmware with bootloader and OTA support |
| Data Flash | 4 KB - supports 1,000,000 write cycles for parameter storage and calibration data |
| RAM | 12 KB on-chip SRAM - accommodates stack, heap, and real-time buffers for multi-threaded RTOS use |
| ADC | 10-bit resolution, 20-channel analog input - supports simultaneous sampling of sensors in industrial monitoring |
| Supply Range | 1.6–5.5 V - allows direct interface with Li-ion, alkaline, or 3.3/5 V system rails without external regulators |
| Operating Temp | -40°C to +85°C (A-grade) - qualified for consumer and commercial environments including smart home hubs |
Pinout & Package
Package: 44-pin LSSOP (7.62 mm × 5.3 mm, 0.8 mm pitch), JEDEC MS-012AC compliant, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit and timer input - used for serial communication and precise timing capture |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive and timer output - pairs with P00 for full-duplex UART and PWM generation |
| P10–P17 | CSI/I²C/UART/SCL/SDA/SCK/SI/SO | Multi-protocol serial interface bank - configurable for up to 4 UART, 10 I²C, or 8 CSI channels |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM / ANO0 / ANO1 | Analog input group with internal reference - enables 8-channel 10-bit ADC acquisition with differential mode support |
| P30–P31 | INTP3 / RTC1HZ / SCK00 / TI03 / TO03 | Real-time clock and timer I/O - provides 1 Hz timekeeping signal and flexible capture/compare outputs |
| RESET | Active-low reset input | Hardware reset with built-in POR/LVD - ensures deterministic startup under brown-out or power-up conditions |
| VDD / VSS | Power supply and ground | Dual power domains - supports separate analog/digital supply routing for noise-sensitive ADC operation |
| REGC | Regulator capacitor terminal | Requires 0.47–1 μF capacitor to VSS - stabilizes internal voltage regulator for low-noise core operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA with RTC + LVD active - extends battery life in wireless sensor nodes beyond 5 years on CR2032 |
| Self-programming flash | Boot swap and flash shield window - enables secure field firmware updates without external programmer |
| Background data flash rewrite | BGO allows concurrent program execution during 4 KB data flash writes - eliminates interrupt latency spikes |
| Event Link Controller (ELC) | Links 19–26 peripheral events - eliminates CPU polling and reduces ISR overhead in motor control applications |
| Peripheral I/O redirection | PIOR0/1 registers remap functions like UART or timer outputs to alternate pins - simplifies PCB layout reuse |
| On-chip temperature sensor | Calibrated ±2°C accuracy - provides thermal monitoring for fan control or battery safety without external IC |
Applications
| Industrial Sensor Node | Smart Home Thermostat |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and transmitting data via UART-to-LoRa module. IC Role / Device Role / Timing Role: Main system controller managing sensor polling, data aggregation, low-power scheduling, and serial protocol translation. Use Value: 0.60 μA STOP mode with RTC wake-up enables 7-year battery life; integrated 10-bit ADC eliminates external signal conditioning. |
Use Scenario: Wall-mounted HVAC controller with capacitive touch buttons, LCD display, and relay drivers for heating/cooling stages. IC Role / Device Role / Timing Role: Central MCU handling user interface, PID temperature regulation, display refresh, and relay timing with precise 32.768 kHz RTC. Use Value: On-chip buzzer output (PCLBUZ0/1) drives audible feedback directly; 12 KB RAM supports multitasking UI and control algorithms. |
| Portable Medical Device | Energy Meter Interface Module |
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals, computing SpO₂, and displaying results on OLED via SPI. IC Role / Device Role / Timing Role: Signal acquisition processor performing ADC sampling, digital filtering, and real-time saturation calculation. Use Value: Internal 1.45 V reference ensures stable ADC accuracy across battery voltage drop; 44 DMIPS handles FFT-based signal processing. |
Use Scenario: DIN-rail mounted module reading kWh data from utility meter via optical port (IEC 62056-21) and forwarding via RS-485. IC Role / Device Role / Timing Role: Protocol bridge converting asynchronous optical pulses to Modbus RTU over half-duplex RS-485. Use Value: Hardware UART with LIN support handles variable baud rate optical bursts; 96 KB flash stores dual-language UI and firmware update logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BFASP#V0 | 128 KB flash, 16 KB RAM, same 44-pin LSSOP package and peripheral set | Supports larger firmware images with additional communication stacks (e.g., BLE host stack or advanced encryption) | Select when firmware size exceeds 96 KB or when future feature expansion requires headroom in code memory |
| R5F104AGASP#V0 | 128 KB flash, 16 KB RAM, identical pinout but rated for -40°C to +105°C (G-grade industrial) | Validated for extended temperature environments such as factory automation cabinets or outdoor enclosures | Choose for deployments requiring guaranteed operation above +85°C ambient, with no PCB or firmware changes needed |
Compared with R5F104AFASP#V0, R5F104BFASP#V0 offers 33% more flash for complex protocol stacks, while R5F104AGASP#V0 maintains identical functionality with extended thermal qualification-both retain full pin and software compatibility for seamless migration.
Availability
R5F104AFASP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home thermostats, and portable medical devices requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for R5F104AFASP#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, and power management solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line targets cost-sensitive, ultra-low-power embedded applications where energy efficiency, integration density, and toolchain maturity are critical-designed specifically for battery-operated and thermally constrained systems.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104AFASP#V0?
The R5F104AFASP#V0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. This speed is fully supported across the entire 1.6–5.5 V supply range and -40°C to +85°C temperature grade. Its 3-stage pipeline architecture ensures deterministic instruction timing, making the R5F104AFASP#V0 suitable for real-time control tasks such as motor commutation or sensor fusion where cycle predictability matters.
Does the R5F104AFASP#V0 support in-system programming and secure firmware updates?
Yes, the R5F104AFASP#V0 supports full in-system programming via its on-chip debug interface and includes boot swap functionality for atomic firmware updates. It also implements flash shield window protection to prevent unauthorized readout of code memory. These capabilities allow field upgrades of the R5F104AFASP#V0 without removing it from the PCB or requiring external programming hardware, enhancing product maintainability and security.
How many analog input channels does the R5F104AFASP#V0 support, and what is the ADC resolution?
The R5F104AFASP#V0 integrates a 10-bit successive-approximation ADC with up to 20 configurable analog input channels (ANI0–ANI19), including dedicated AVREFP/AVREFM reference pins and internal 1.45 V reference voltage. This ADC operates across the full 1.6–5.5 V supply range and supports both single-ended and differential measurement modes, enabling precise sensor interfacing in the R5F104AFASP#V0 without external signal conditioning components.
What low-power modes are available on the R5F104AFASP#V0, and what is the lowest current consumption?
The R5F104AFASP#V0 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it consumes just 0.60 μA - verified at 3.3 V and 25°C. This ultra-low quiescent current enables multi-year battery operation in applications like wireless sensors. The R5F104AFASP#V0 also achieves 66 μA/MHz in active mode, balancing performance and efficiency for duty-cycled systems.
Is the R5F104AFASP#V0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 44-pin LSSOP package (SP suffix) share identical pinouts and electrical characteristics, including R5F104AFASP#V0, R5F104BFASP#V0, and R5F104AGASP#V0. This allows direct substitution within the same footprint for memory or temperature grade upgrades without PCB redesign. Firmware remains compatible at the peripheral register level, though users must validate flash/RAM allocation against the target variant's memory map.
R5F104AFASP#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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104AFASP#V0 FAQ
1.How can I place an order for R5F104AFASP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104AFASP#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 R5F104AFASP#V0 reliable?
The price and inventory of R5F104AFASP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104AFASP#V0 is usually 5 days.
3.What payment methods are accepted for R5F104AFASP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104AFASP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104AFASP#V0?
R5F104AFASP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104AFASP#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 R5F104AFASP#V0?
For technical support, including R5F104AFASP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104AFASP#V0 requirements.
6.How does Aetrix verify that R5F104AFASP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104AFASP#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 R5F104AFASP#V0 meets industry standards.
7.What is the process for return or replacement of R5F104AFASP#V0?
All R5F104AFASP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104AFASP#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 R5F104AFASP#V0 part is unused and in its original packaging.
Return procedure for R5F104AFASP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F104AFASP#V0 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
