Renesas R5F104PJAFA#10
- Part No.:
- R5F104PJAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F104PJAFA#10.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:576
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Product details
Overview
R5F104PJAFA#10 from Renesas is a 100-pin LQFP-0.65 mm pitch, industrial-grade (G) RL78/G14 16-bit MCU with 256 KB flash, 8 KB data flash, 24 KB RAM, and integrated peripherals including 12-channel 10-bit ADC, dual UART/LIN, I²C, SPI, RTC, and ultra-low-power operation down to 0.60 μA in STOP mode - deployed in motor control and sensor interface modules.
For engineers reviewing the R5F104PJAFA#10 datasheet, R5F104PJAFA#10 pinout, R5F104PJAFA#10 application, or R5F104PJAFA#10 equivalent, key selection criteria include its 100-pin LQFP package, -40°C to +105°C industrial temperature rating, 256 KB code flash with self-programming capability, and hardware event linking via ELC for deterministic real-time response.
Technical Context
The R5F104PJAFA#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), and includes multiply/divide/accumulate instructions. Its memory subsystem integrates 256 KB on-chip flash with 1 KB block erase granularity and 8 KB data flash with background operation (BGO) and 1M rewrite cycles.
Peripherals are orchestrated via Event Link Controller (ELC) supporting up to 26 event sources linked to functions like ADC triggers or timer starts, and Data Transfer Controller (DTC) enabling chain transfers without CPU intervention. Power management includes HALT, STOP, and SNOOZE modes, with LVD interrupt/reset selectable across 14 voltage levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS; high-speed on-chip oscillator accurate to ±1.0% over -20 to +85°C |
| Memory Configuration | 256 KB code flash (1 KB blocks), 8 KB data flash (BGO enabled), 24 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD active |
| Analog Peripherals | 10-bit ADC with 16 input channels, internal 1.45 V reference, and temperature sensor |
| Digital Interfaces | 4× UART/LIN, 10× I²C/simplified I²C, 8× CSI (SPI-compatible), 12× 16-bit timers including RTC |
| Operating Temperature | -40°C to +105°C (industrial G-grade), single 1.6–5.5 V supply |
Pinout & Package
Package: 100-pin LQFP (14 × 20 mm, 0.65 mm pitch), lead-free, RoHS-compliant, industrial-grade (G).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | General-purpose I/O / UART1 TX/RX | Configurable TTL/CMOS I/O with peripheral function multiplexing; support different-potential interface (1.8/2.5/3 V) |
| P10–P15 | SPI/I²C/UART channel pins | Multi-function pins supporting CSI (SPI), I²C, and UART simultaneously; programmable via PIOR registers |
| P30–P31 | RTC clock input / Timer I/O | P30 accepts 32.768 kHz crystal or external RTC1HZ signal; P31 supports TI03/TO03 and PCLBUZ0 for buzzer timing |
| P121–P122 | Crystal oscillator inputs (X1/X2) | Supports 32.768 kHz crystal for RTC or high-frequency crystal up to 20 MHz; internal oscillator selectable |
| RESET, REGC, VDD, VSS | Reset control / regulator capacitor / power rails | REGC requires 0.47–1 µF capacitor to VSS; RESET is active-low with internal pull-up; VDD/VSS support decoupling per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA retention with RTC and LVD active - enables battery-powered applications with multi-year runtime |
| Background data flash rewriting | Execute code from flash while rewriting data flash (BGO), enabling seamless firmware updates without interruption |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DMA transfer → timer stop) eliminates CPU polling overhead |
| On-chip debug & security | Fully supported on-chip debug interface with flash shield window and block erase prohibition for IP protection |
| Flexible clock system | Selectable high-speed on-chip oscillator (1–64 MHz) with ±1.0% accuracy, plus sub-system clock at 32.768 kHz |
Applications
| Motor Control System | Sensor Fusion Node |
|---|---|
Use Scenario: Brushless DC motor drive in HVAC blower units requiring precise commutation timing and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, reading Hall sensors/ADC, driving gate drivers via PWM outputs, and managing LIN communication. Use Value: Integrated 12-channel 10-bit ADC with hardware averaging, 16-bit timer array with complementary PWM, and LIN-capable UART reduce BOM count and PCB area. | Use Scenario: Industrial environmental monitor aggregating temperature, humidity, and CO₂ via analog and digital sensors. IC Role / Device Role / Timing Role: Sensor hub collecting data via I²C, SPI, and ADC; performing local calibration; transmitting via UART to gateway. Use Value: 10-bit ADC with internal reference and temperature sensor enables direct analog sensing; 10 I²C channels support multiple slave devices without GPIO bit-banging. |
| Smart Energy Meter | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, real-time tariff calculation, and RS-485 backhaul. IC Role / Device Role / Timing Role: System-on-chip handling metrology preprocessing (via ADC), RTC-based billing, secure flash storage, and UART-to-RS485 interface. Use Value: 256 KB flash stores dual firmware images; RTC with calendar and alarm supports time-of-use billing; LVD detects brown-out for safe shutdown. | Use Scenario: Modular PLC base unit managing discrete I/O expansion via serial daisy-chain. IC Role / Device Role / Timing Role: Master controller coordinating DIO modules via UART/LIN, executing ladder logic, and maintaining watchdog supervision. Use Value: Four UART/LIN interfaces enable simultaneous master/slave roles; ELC synchronizes I/O sampling with scan cycle timing for deterministic response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104PJGFA#10 | Same 256 KB flash, 24 KB RAM, 100-pin LQFP, but rated for -40°C to +85°C (A-grade) instead of +105°C | Not qualified for extended industrial ambient; unsuitable where cabinet temperatures exceed 85°C | Select only for consumer or controlled-environment applications where cost sensitivity outweighs thermal margin |
| R5F104MLAFA#10 | Same package and temperature grade, but 384 KB flash and 32 KB RAM - larger memory footprint and higher current draw in active mode | Over-provisioned memory for bootloader + application separation; higher static power may impact battery life | Choose when future firmware expansion or dual-bank OTA updates are required; verify thermal dissipation in enclosure |
Compared with R5F104PJGFA#10, the R5F104PJAFA#10 provides guaranteed operation up to +105°C - critical for enclosed industrial drives - while R5F104MLAFA#10 trades lower power efficiency for headroom in complex control algorithms and field-upgradable firmware.
Availability
R5F104PJAFA#10 is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, smart energy meters, and programmable logic controller I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104PJAFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, thermally demanding industrial applications requiring robust peripheral integration and long-term supply assurance.
FAQ
What is the maximum operating frequency and core performance of the R5F104PJAFA#10?
The R5F104PJAFA#10 operates at up to 32 MHz using its high-accuracy on-chip oscillator (±1.0%), delivering 44 DMIPS. Its RL78 CPU core features a 3-stage pipeline CISC architecture with 1 MB address space, multiply/divide/accumulate instructions, and configurable instruction timing from 0.03125 µs (high-speed) to 30.5 µs (ultra-low-speed) per instruction.
Does the R5F104PJAFA#10 support in-system programming and secure firmware updates?
Yes, the R5F104PJAFA#10 supports full in-system programming via its on-chip debug interface and includes flash shield window protection, block erase prohibition, and boot swapping - enabling secure, field-upgradable firmware with verified integrity. Self-programming uses dedicated RAM areas starting at F9F00H, documented in the Flash Self-Programming Library for RL78 Family (R20UT2944).
How many analog-to-digital converter (ADC) channels does the R5F104PJAFA#10 provide, and what resolution and references are supported?
The R5F104PJAFA#10 integrates a 10-bit successive-approximation ADC with up to 16 analog input channels. It supports internal 1.45 V reference voltage and an on-chip temperature sensor, and operates across the full 1.6–5.5 V supply range. Input voltage range is 0 to VDD, and conversion results can be averaged in hardware to improve noise immunity.
What communication interfaces are available on the R5F104PJAFA#10, and which support LIN bus protocol?
The R5F104PJAFA#10 provides four UART channels, all LIN-bus compliant per ISO 14229 and SAE J2602, plus ten I²C/simplified I²C channels and eight CSI (SPI-compatible) interfaces. UART channels support automatic LIN header detection, checksum generation, and wakeup-on-break functionality - essential for automotive and industrial networked sensors.
What is the industrial temperature rating and supply voltage range for the R5F104PJAFA#10?
The R5F104PJAFA#10 is rated for industrial operation from -40°C to +105°C (G-grade) and operates from a single 1.6 V to 5.5 V supply. This wide voltage range allows direct interfacing with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals without level shifters, and the on-chip LVD offers 14 selectable reset/interrupt thresholds for robust brown-out management.
R5F104PJAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- 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:
- 82
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 20x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104PJAFA#10 FAQ
1.How can I place an order for R5F104PJAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104PJAFA#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 R5F104PJAFA#10 reliable?
The price and inventory of R5F104PJAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104PJAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F104PJAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104PJAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104PJAFA#10?
R5F104PJAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104PJAFA#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 R5F104PJAFA#10?
For technical support, including R5F104PJAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104PJAFA#10 requirements.
6.How does Aetrix verify that R5F104PJAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F104PJAFA#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 R5F104PJAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F104PJAFA#10?
All R5F104PJAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104PJAFA#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 R5F104PJAFA#10 part is unused and in its original packaging.
Return procedure for R5F104PJAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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