Renesas R5F101PHAFA#10
- Part No.:
- R5F101PHAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F101PHAFA#10.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 100LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:576
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Product details
Overview
R5F101PHAFA#10 from Renesas is a 48-pin LQFP-0.65mm microcontroller in the RL78/G13 family, featuring 64 KB flash memory, 4 KB data flash, 4 KB RAM, 16-bit RL78 CPU core, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It targets battery-powered industrial sensors and smart metering interfaces requiring deterministic real-time control.
For engineers reviewing the R5F101PHAFA#10 datasheet, R5F101PHAFA#10 pinout, R5F101PHAFA#10 application, or R5F101PHAFA#10 equivalent, key selection criteria include its 48-pin LQFP package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade, and integrated 10-bit ADC with 26-channel analog input capability.
Technical Context
The R5F101PHAFA#10 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and operates across 1.6–5.5 V supply. Its memory map includes 1 MB address space, with dedicated SFR regions for peripheral control.
Peripheral integration includes up to 16 channels of 16-bit timer, one 12-bit interval timer, calendar-based real-time clock with alarm and correction, and three serial interface types: CSI (SPI-compatible), UART/LIN, and I²C - all configurable per channel without shared resource conflict.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 64 KB code flash, 1 KB block size, self-programming with boot swap |
| Data Flash | Not integrated (R5F101x series); external EEPROM or FRAM required for nonvolatile data storage |
| RAM Size | 4 KB on-chip SRAM, including dedicated areas for flash library operation |
| ADC Resolution | 10-bit SAR ADC with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V single supply; supports direct connection to 3.3 V or 5 V systems |
| Temp Range | -40°C to +85°C (industrial grade D suffix implied by FA package and #10 tray marking) |
Pinout & Package
Package: 48-pin LQFP, 7 mm × 7 mm, 0.65 mm pitch, exposed pad not present, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports mixed-voltage I/O (1.8/2.5/3.3 V interface) |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67 | General-purpose I/O | Up to 39 programmable pins with N-ch open-drain option, TTL input buffer, and on-chip pull-up resistors |
| P10/SCK00/SCL00 | Serial clock input/output | Shared function pin supporting CSI (SPI master/slave) or I²C clock; direction auto-detected in I²C mode |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input | Multi-function pin for CSI data-in, UART receive, debug tool interface, or I²C data line - selected via register configuration |
| P20/ANI0/AVREFP | Analog input / reference positive | Analog channel 0 input with selectable AVREFP as ADC reference voltage source; enables ratiometric measurement |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-μA system sleep states while retaining RTC and LVD functionality for wake-on-event sensing |
| On-chip high-accuracy oscillator | ±1.0% tolerance over 1.8–5.5 V and -20 to +85°C; eliminates need for external crystal in cost-sensitive designs |
| Background data flash rewriting | Allows firmware updates or parameter storage without halting CPU execution - critical for field-upgradable devices |
| Integrated LIN bus support | UART peripheral configured for LIN 2.2 protocol with automatic sync-break detection and checksum generation |
| Real-time clock with calendar | 99-year calendar, alarm interrupt, and hardware clock correction - suitable for time-stamped logging in industrial controllers |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with pulse counting, tamper detection, and local display. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, LCD driver, optical IR interface, and secure firmware updates. Use Value: 64 KB flash accommodates dual-bank bootloader and encrypted application; 10-bit ADC supports precision current/voltage sensing at <1% error. | Use Scenario: Wireless temperature/humidity/pressure node with battery life >5 years. IC Role / Device Role / Timing Role: Low-power acquisition engine performing periodic sensor reads, preprocessing, and SPI communication to RF transceiver. Use Value: 0.57 μA STOP mode extends battery life; integrated RTC triggers scheduled wake-ups without external timing components. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main control board with motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: Real-time motion control coordinator interfacing with triac drivers, hall-effect sensors, and touch keypad. Use Value: 16-bit timers with complementary output enable precise phase-controlled AC drive; 26-channel ADC monitors multiple analog sensors simultaneously. | Use Scenario: HVAC zone controller with RS-485 Modbus RTU, temperature setpoint UI, and fan speed regulation. IC Role / Device Role / Timing Role: Protocol gateway translating between local sensors/actuators and building management network. Use Value: UART with LIN support simplifies legacy automotive-grade communication; 48-pin LQFP provides sufficient I/O for discrete inputs, relay outputs, and serial buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PHAFA#10 | Includes 4 KB data flash; identical pinout, package, and peripheral set | Preferred where firmware must store calibration data or event logs without external memory | Select when nonvolatile parameter storage is required on-chip; adds ~$0.15 BOM cost |
| RL78/G14 R5F104PJAFB#30 | Enhanced RL78/G14 core, 128 KB flash, 12 KB RAM, same 48-pin LQFP-0.65mm package | Better suited for complex HMI or multi-protocol gateways needing larger code space and memory headroom | Choose for future-proofing or when migrating from G13 with minimal PCB change but higher performance margin |
Compared with R5F100PHAFA#10 and RL78/G14 R5F104PJAFB#30, the R5F101PHAFA#10 delivers optimal cost-efficiency for fixed-function embedded control where data flash is unnecessary and memory footprint remains under 64 KB - reducing both silicon cost and qualification effort.
Availability
R5F101PHAFA#10 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across extended production lifecycles.
Supply support for R5F101PHAFA#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and general-purpose embedded control applications requiring high integration and long-term supply assurance.
FAQ
What is the maximum operating frequency of the R5F101PHAFA#10?
The R5F101PHAFA#10 supports a maximum CPU clock frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, it achieves 41 DMIPS performance. The oscillator accuracy is ±1.0% across 1.8–5.5 V supply and -20°C to +85°C ambient, eliminating need for external crystals in many applications. The R5F101PHAFA#10 also supports lower-frequency subsystem clocks down to 32.768 kHz for RTC operation.
Does the R5F101PHAFA#10 include on-chip data flash memory?
No, the R5F101PHAFA#10 does not include on-chip data flash memory. As indicated by the "101" in its part number (per Renesas documentation), this variant belongs to the data-flash-less series. It provides 64 KB of code flash and 4 KB of RAM, but nonvolatile data storage requires external EEPROM, FRAM, or serial flash. In contrast, the R5F100x series (e.g., R5F100PHAFA#10) integrates 4 KB of data flash.
What package type and pin count does the R5F101PHAFA#10 use?
The R5F101PHAFA#10 uses a 48-pin LQFP package with 0.65 mm pitch, measuring 7 mm × 7 mm. The "FA" in the part number explicitly denotes this LQFP-0.65mm variant, and the "#10" suffix indicates tray packaging. This package provides 39 general-purpose I/O pins plus power, ground, reset, and clock terminals - sufficient for medium-complexity control applications without requiring BGA or QFN miniaturization.
Can the R5F101PHAFA#10 operate in extended temperature ranges beyond -40°C to +85°C?
No, the R5F101PHAFA#10 is rated for operation from -40°C to +85°C only. Renesas assigns temperature grades via suffix letters: "D" denotes industrial grade (-40°C to +85°C), which applies to this part based on its ordering code structure and documented specifications. The "G" grade (-40°C to +105°C) is available in other RL78/G13 variants (e.g., R5F101PHAGA#10), but the R5F101PHAFA#10 is not qualified for +105°C operation.
Which serial communication protocols are supported natively by the R5F101PHAFA#10?
The R5F101PHAFA#10 natively supports three serial protocols via dedicated peripherals: CSI (SPI-compatible synchronous serial interface), UART with LIN 2.2 compliance (including sync-break detection and checksum), and I²C (standard and fast-mode up to 400 kHz). All are configurable per channel, with no functional overlap or shared registers - enabling simultaneous use of UART for debugging, I²C for sensor communication, and CSI for display or memory interface.
R5F101PHAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 82
- Program Memory Size:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 20x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101PHAFA#10 FAQ
1.How can I place an order for R5F101PHAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101PHAFA#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 R5F101PHAFA#10 reliable?
The price and inventory of R5F101PHAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101PHAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F101PHAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101PHAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101PHAFA#10?
R5F101PHAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101PHAFA#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 R5F101PHAFA#10?
For technical support, including R5F101PHAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101PHAFA#10 requirements.
6.How does Aetrix verify that R5F101PHAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F101PHAFA#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 R5F101PHAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F101PHAFA#10?
All R5F101PHAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101PHAFA#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 R5F101PHAFA#10 part is unused and in its original packaging.
Return procedure for R5F101PHAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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