Renesas R5F101PJAFA#30
- Part No.:
- R5F101PJAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F101PJAFA#30.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,027
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F101PJAFA#30 from Renesas is a 100-pin LQFP-0.65mm, 32-bit RL78/G13 microcontroller with 64 KB flash, 4 KB data flash, 4 KB RAM, 10-bit ADC (16 channels), and real-time clock - designed for low-power industrial control systems operating from 1.6 V to 5.5 V.
For engineers reviewing the R5F101PJAFA#30 datasheet, R5F101PJAFA#30 pinout, R5F101PJAFA#30 application, or R5F101PJAFA#30 equivalent, key selection criteria include its 64 KB code flash without data flash, -40°C to +85°C industrial temperature grade (D), LQFP-100 package with 0.65 mm pitch, and integrated peripherals including UART, I²C, CSI, and 16-bit timers.
Technical Context
The R5F101PJAFA#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and variable instruction execution time (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz). It supports ultra-low power modes including HALT, STOP, and SNOOZE, achieving 66 μA/MHz active current and 0.57 μA RTC+LVD standby.
It integrates a 10-bit A/D converter with up to 16 input channels, 16-bit timer array (12 channels), real-time clock with calendar and alarm, and serial interfaces including 3× I²C/Simplified I²C, 2× UART/LIN, and 2× CSI. The device lacks on-chip data flash memory (denoted by "101" in part number) but retains full peripheral functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and variable-speed operation |
| Flash Memory | 64 KB code flash only; no data flash (R5F101x series designation) |
| RAM | 4 KB on-chip RAM for program/data storage and stack operations |
| ADC | 10-bit resolution, 16-channel analog-to-digital converter with internal reference |
| Operating Voltage | 1.6 V to 5.5 V single supply - enables direct battery or wide-input industrial rail interfacing |
| Temperature Range | -40°C to +85°C (Industrial grade D - qualified for extended ambient operation) |
| Package | LQFP-100, 14 × 20 mm, 0.65 mm pitch - compatible with standard surface-mount assembly |
Pinout & Package
Package: 100-pin LQFP (14 mm × 20 mm, 0.65 mm pitch), RoHS-compliant, plastic body with exposed thermal pad (PLQP0100JC-A).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | General-purpose I/O / UART0/1, CSI0/1, I²C0/1 | Multi-function ports supporting serial communication and GPIO with programmable pull-up and N-ch open-drain capability |
| P20–P27 | Analog inputs (ANI0–ANI15) / AVREFP/AVREFM | 16-channel ADC input group with dedicated analog reference pins for precision measurement |
| P30–P37 | Timer output (TO00–TO11), RTCOUT, CLKOUT | 12-channel 16-bit timer outputs plus real-time clock and system clock distribution signals |
| P40–P47 | Interrupt inputs (INTP0–INTP7), key interrupt | Dedicated external interrupt and key-scan inputs with noise filtering and wake-up capability |
| VDD, VSS | Power supply and ground | Multiple VDD/VSS pairs ensure stable core and I/O domain operation across full voltage range |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 66 μA/MHz active current and 0.57 μA RTC+LVD mode - extends battery life in portable and remote sensors |
| Integrated real-time clock | Calendar function (99-year range), alarm, and clock correction - eliminates need for external RTC IC |
| Hardware serial interfaces | 3× I²C/Simplified I²C, 2× UART/LIN, 2× CSI - supports multi-protocol sensor and actuator connectivity |
| On-chip debug support | FULLY functional on-chip debug interface with SWD - enables in-system programming and real-time trace |
| Flexible clock system | High-accuracy on-chip oscillator (±1.0% from 1–32 MHz) plus subsystem clock (32.768 kHz) - reduces BOM cost and board space |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered environmental monitoring unit measuring temperature, humidity, and CO₂ via analog and digital sensors. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, data preprocessing, and wireless transmission scheduling. Use Value: Ultra-low power modes and integrated RTC enable precise time-stamped logging over multi-year deployments without external timing components. |
Use Scenario: Residential electricity meter with pulse counting, tariff switching, and secure data logging. IC Role / Device Role / Timing Role: System-on-chip managing metrology interface, tamper detection, EEPROM emulation, and display driver. Use Value: 64 KB flash accommodates dual-application firmware (metering + UI), while 10-bit ADC and LIN support legacy utility communication protocols. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Board |
Use Scenario: DIN-rail mounted digital I/O expansion module with 16-channel isolated inputs and relay outputs. IC Role / Device Role / Timing Role: Real-time I/O coordinator handling scan cycles, diagnostics, and Modbus RTU over UART. Use Value: 16-bit timer array and hardware UART with LIN support enable deterministic 10-ms I/O scan intervals and robust fieldbus interoperability. |
Use Scenario: Washing machine main control board managing motor drive, water level sensing, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Central MCU executing state-machine control, PWM generation, and fault monitoring. Use Value: On-chip voltage detector (14-level LVD) and watchdog timer provide certified functional safety compliance without external supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101PJAFB#30 | Same core, memory, and peripherals; differs only in LFQFP-100 (0.5 mm pitch) package | Requires PCB redesign due to finer pitch and different land pattern | Select when using high-density layouts where 0.5 mm pitch improves routing or thermal performance |
| R5F100PJAFA#30 | Identical package and pinout, but includes 4 KB data flash memory (R5F100x series) | Enables EEPROM emulation and firmware parameter storage without external memory | Choose when non-volatile parameter retention or background data rewriting is required |
Compared with R5F101PJAFB#30 and R5F100PJAFA#30, the R5F101PJAFA#30 offers optimal cost/performance balance for fixed-parameter industrial controllers where data flash is unnecessary and LQFP-0.65 mm simplifies assembly and rework.
Availability
R5F101PJAFA#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, PLC I/O modules, and home appliance control boards requiring stable component supply and long-term manufacturing continuity.
Supply support for R5F101PJAFA#30 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 automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose applications - delivering high integration, robustness, and toolchain maturity for rapid industrial product development.
FAQ
What is the flash memory configuration of the R5F101PJAFA#30?
The R5F101PJAFA#30 contains 64 KB of on-chip code flash memory and no data flash memory. This is confirmed by the "101" prefix in the part number per Renesas documentation, which explicitly denotes devices without data flash. The R5F101PJAFA#30 retains full peripheral functionality and supports self-programming of the code flash region only.
Does the R5F101PJAFA#30 support real-time clock functionality?
Yes, the R5F101PJAFA#30 integrates a full-featured real-time clock (RTC) with calendar support (up to 99 years), alarm interrupt, and clock correction function. It operates independently in STOP mode using the 32.768 kHz subsystem clock, enabling accurate timekeeping during ultra-low-power operation - a key feature verified in the RL78/G13 datasheet Section 1.1.
What is the operating temperature grade for R5F101PJAFA#30?
The R5F101PJAFA#30 is rated for industrial operation from -40°C to +85°C (grade D), as indicated by the "D" suffix in the full ordering code structure defined in Figure 1-1 of the datasheet. This qualification ensures reliability in factory automation, building controls, and outdoor equipment environments.
Which serial interfaces are available on the R5F101PJAFA#30?
The R5F101PJAFA#30 provides three I²C/Simplified I²C channels, two UART/LIN channels, and two CSI (Simplified SPI) channels. All are fully functional and pin-mapped across PORT1–PORT4. No additional external transceivers are needed for basic LIN bus communication, as LIN protocol support is implemented in hardware UART modules.
Is the R5F101PJAFA#30 pin-compatible with R5F100PJAFA#30?
Yes, the R5F101PJAFA#30 and R5F100PJAFA#30 share identical LQFP-100 package dimensions, pin count, pinout, and electrical characteristics - differing only in the presence of data flash memory. This allows drop-in replacement in existing designs where data flash is unused, provided firmware does not rely on data flash routines.
R5F101PJAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- -
- RAM Size:
- 20K 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:
R5F101PJAFA#30 FAQ
1.How can I place an order for R5F101PJAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101PJAFA#30 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 R5F101PJAFA#30 reliable?
The price and inventory of R5F101PJAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101PJAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F101PJAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101PJAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101PJAFA#30?
R5F101PJAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101PJAFA#30 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 R5F101PJAFA#30?
For technical support, including R5F101PJAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101PJAFA#30 requirements.
6.How does Aetrix verify that R5F101PJAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F101PJAFA#30 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 R5F101PJAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F101PJAFA#30?
All R5F101PJAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101PJAFA#30, 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 R5F101PJAFA#30 part is unused and in its original packaging.
Return procedure for R5F101PJAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F101PJAFA#30 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…

