My Inquiry
My Account
Renesas R5F101MJAFB#V0
- Part No.:
- R5F101MJAFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MJAFB#V0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,613
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F101MJAFB#V0 from Renesas is an RL78/G13 80-pin, 256 KB flash, no data flash, industrial-grade (−40°C to +105°C) 16-bit MCU with 16 KB RAM, 32 MHz max CPU speed, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 12-bit RTC, 10-bit 26-channel ADC, 16× 16-bit timers, UART/LIN, I²C, CSI, and DMA for embedded control in space-constrained industrial sensors and motor drives.
For engineers reviewing the R5F101MJAFB#V0 datasheet, R5F101MJAFB#V0 pinout, R5F101MJAFB#V0 application, or R5F101MJAFB#V0 equivalent, key selection criteria include its LFQFP-80 (12 × 12 mm, 0.5 mm pitch) package, absence of on-chip data flash, G-grade temperature rating, and support for background data rewriting via external flash library.
Technical Context
The R5F101MJAFB#V0 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It operates across 1.6–5.5 V supply and includes dedicated low-speed on-chip oscillator for watchdog timer independence.
Its peripheral set includes 16-bit timer arrays with output compare/capture, 12-bit interval timer, calendar-mode real-time clock with alarm and correction, and dual-channel DMA capable of 2-clock transfers between SFR and RAM - enabling deterministic timing-critical firmware tasks without CPU intervention.
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 - delivers 41 DMIPS performance for real-time control loops |
| Flash Memory | 256 KB code flash - supports block erase (1 KB), security lock, and self-programming with boot swap |
| RAM | 16 KB on-chip RAM - includes dedicated areas for flash library use (start address FAF00H) |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor |
| Operating Temp | −40°C to +105°C (G-grade) - qualified for industrial motor control and HVAC applications |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V peripherals and battery-backed operation |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock input/output | Shared SPI clock (CSI) and I²C clock - enables dual-protocol peripheral interfacing on single pin |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input / UART receive / debug RX / I²C data | Multi-function pin supporting programming, communication, and debugging without external muxing |
| P20/ANI0/AVREFP | Analog input channel 0 / ADC reference positive | Configurable as primary analog input or precision ADC reference source - improves measurement accuracy |
| P21/ANI1/AVREFM | Analog input channel 1 / ADC reference negative | Enables differential ADC measurements or ratiometric sensing when paired with AVREFP |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD circuits for robust power-on and brownout recovery |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | 0.57 μA RTC+LVD retention current enables multi-year battery life in metering and sensor nodes |
| On-chip high-accuracy oscillator | ±1.0% tolerance over −20°C to +85°C eliminates need for external crystal in cost-sensitive designs |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - supports time-stamped logging without host processor load |
| Background data flash operation | BGO allows full CPU execution during data flash rewrite - critical for firmware-over-the-air updates |
| Dual-channel DMA controller | 2-clock transfers between SFR and RAM reduce CPU overhead for ADC sampling and serial buffering |
| Multi-voltage I/O interface | Supports 1.8/2.5/3.3 V logic levels - simplifies integration with mixed-voltage sensor and communication ICs |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Closed-loop BLDC motor commutation with current sensing, PWM generation, and thermal monitoring. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing gate drivers, and synchronizing ADC sampling with PWM edges. Use Value: 16-bit timers with complementary outputs and 10-bit 26-channel ADC enable precise phase current capture and real-time torque regulation. |
Use Scenario: Polyphase electricity meter with metrology ASIC interface, tamper detection, and secure firmware update. IC Role / Device Role / Timing Role: Host MCU handling communication (UART/LIN), secure boot, RTC-based billing intervals, and flash-safe field updates. Use Value: 256 KB flash stores dual firmware images; BGO allows seamless OTA patching without service interruption. |
| Building Automation Sensors | Industrial PLC I/O Modules |
|
Use Scenario: Battery-powered CO₂, temperature, and humidity node with wireless backhaul. IC Role / Device Role / Timing Role: Low-power sensor aggregator managing ADC, RTC wake-up, and serial interface to transceiver. Use Value: 0.57 μA STOP mode with RTC/LVD extends 10-year battery life; multi-voltage I/O interfaces directly with analog sensors. |
Use Scenario: DIN-rail mounted digital input module with isolation, debounce, and Modbus RTU communication. IC Role / Device Role / Timing Role: Deterministic I/O manager performing edge detection, filtering, and protocol framing at 9.6–115.2 kbps. Use Value: Dual UART with LIN support enables native Modbus RTU; 16 KB RAM buffers multiple command/response cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101MJAFB#X0 | Identical silicon; differs only in packaging - embossed tape instead of tray | No functional difference; selected for automated SMT line compatibility | Choose #X0 for high-volume pick-and-place assembly; #V0 for manual prototyping or low-volume production |
| R5F101LJAFB#V0 | Same package and grade, but 192 KB flash / 16 KB RAM - 64 KB less code memory | Suitable for simpler control firmware where 256 KB headroom is unnecessary | Select when application firmware size is <192 KB and cost optimization is prioritized over future scalability |
Compared with R5F101MJAFB#V0, the #X0 variant offers identical electrical and functional behavior with tape-and-reel delivery, while the R5F101LJAFB#V0 reduces flash capacity by 64 KB - lowering unit cost but constraining firmware growth margin in long-lifecycle industrial deployments.
Availability
R5F101MJAFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, building automation sensors, and PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for R5F101MJAFB#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for industrial control, home appliances, and sensor nodes.
FAQ
Does R5F101MJAFB#V0 include on-chip data flash memory?
No, R5F101MJAFB#V0 does not integrate data flash memory. The "101" in the part number explicitly denotes zero data flash (per RL78/G13 naming convention). Applications requiring nonvolatile parameter storage must use external EEPROM or leverage the code flash with wear-leveling software - the flash library supports this using RAM starting at address FAF00H.
What is the maximum operating temperature range for R5F101MJAFB#V0?
R5F101MJAFB#V0 is rated for −40°C to +105°C (G-grade), qualifying it for industrial environments including motor drives, HVAC controllers, and factory automation equipment where ambient temperatures exceed standard consumer-grade limits.
Which package type does R5F101MJAFB#V0 use, and what are its dimensions?
R5F101MJAFB#V0 uses an 80-pin LFQFP package with 0.5 mm pitch, measuring 12 mm × 12 mm. The "FB" suffix in the part number confirms the LFQFP body, and "#V0" indicates tray packaging - verified in Renesas datasheet Table 1-1 (Page 11).
Can R5F101MJAFB#V0 operate without an external crystal?
Yes, R5F101MJAFB#V0 can operate fully from its on-chip high-speed oscillator (32 MHz option, ±1.0% accuracy), eliminating the need for external crystals in most applications. An external crystal is optional and only required if tighter frequency stability than ±1.0% is mandated by system specifications.
How many ADC channels does R5F101MJAFB#V0 support, and what is their resolution?
R5F101MJAFB#V0 supports up to 26 analog input channels with 10-bit resolution. It includes internal 1.45 V reference voltage and a calibrated temperature sensor - both accessible via dedicated ANI pins and usable without external components.
R5F101MJAFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- 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:
- 64
- 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 17x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101MJAFB#V0 FAQ
1.How can I place an order for R5F101MJAFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MJAFB#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 R5F101MJAFB#V0 reliable?
The price and inventory of R5F101MJAFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MJAFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F101MJAFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101MJAFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101MJAFB#V0?
R5F101MJAFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MJAFB#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 R5F101MJAFB#V0?
For technical support, including R5F101MJAFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MJAFB#V0 requirements.
6.How does Aetrix verify that R5F101MJAFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101MJAFB#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 R5F101MJAFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F101MJAFB#V0?
All R5F101MJAFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MJAFB#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 R5F101MJAFB#V0 part is unused and in its original packaging.
Return procedure for R5F101MJAFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F101MJAFB#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…
