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Renesas R7F100GMJ2DFB#BA0
- Part No.:
- R7F100GMJ2DFB#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R7F100GMJ2DFB#BA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:929
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Product details
Overview
R7F100GMJ2DFB#BA0 from Renesas is an RL78/G23 80-pin ultra-low-power 16-bit MCU with 256 KB code flash, 8 KB data flash, 24 KB RAM, 1.6–5.5 V operation, and integrated capacitive touch sensing (CTSU2L) for human-machine interface applications in industrial control panels and smart appliances.
For engineers reviewing the R7F100GMJ2DFB#BA0 datasheet, R7F100GMJ2DFB#BA0 pinout, R7F100GMJ2DFB#BA0 application, or R7F100GMJ2DFB#BA0 equivalent, key selection criteria include STOP-mode wakeup time, CTSU2L channel count, UARTA/LIN support, RTC accuracy, and LFQFP-80 (0.5 mm pitch) package compatibility with thermal and routing constraints.
Technical Context
The R7F100GMJ2DFB#BA0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), and includes a SNOOZE mode sequencer (SMS) that executes up to 32 low-power processes without CPU intervention using 21 command types.
It integrates dual voltage detectors (LVD0/LVD1), a Data Transfer Controller (DTC) with chain transfer, Logic & Event Link Controller (ELCL) for peripheral event routing, and a Realtime Clock with alarm interrupt and ±1.5 ppm accuracy over –40°C to +105°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Flash Memory | 256 KB code flash with 2 KB block size, security lock, and self-programming with boot swapping |
| RAM & Data Flash | 24 KB on-chip RAM; 8 KB data flash with background operation (BGO) and 1M rewrite cycles (typ.) |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention current for full 4 KB RAM retention |
| Operating Voltage | 1.6 V to 5.5 V single supply; supports direct connection to 1.8 V, 2.5 V, or 3.0 V external logic |
| Temperature Range | –40°C to +105°C (industrial grade, "3C" field of application) |
| Capacitive Sensing | CTSU2L unit supporting 32-key self-capacitance or 64-key mutual-capacitance matrix (8×8) |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.50-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / P122 | Crystal oscillator input/output | Supports 32.768 kHz crystal (subsystem clock) and 1–20 MHz external crystal (main clock); enables precise RTC and low-jitter timing |
| P30 / P31 | Capacitive touch sense channels | TSCAP and TS01 pins dedicated to CTSU2L; enable robust touch button/slider implementation with noise immunity |
| P10–P17 | Serial interface I/O group | Configurable as SCK00/SI00/SO00 (UARTA/SPI), SCK20/SI20/SO20 (UARTA/LIN), or SCK11/SI11/SO11 (IICA) |
| P60 / P61 | I²C interface pins | SCLA0/SDAA0 support standard/fast-mode I²C (up to 1 Mbps) for sensor and EEPROM communication |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to power-on-reset (POR) and LVD0/LVD1 detection |
| VDD / VSS | Power supply terminals | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; REGC requires 0.47–1 µF capacitor to VSS |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | Wakes up in ≤3.5 µs from STOP mode via external interrupt or RTC alarm - enables battery-powered operation for years |
| SNOOZE mode sequencer (SMS) | Executes 32-step sequences (e.g., ADC sampling → compare → GPIO toggle) autonomously, reducing CPU wakeups by >90% |
| Integrated LIN transceiver support | UARTA peripheral with built-in LIN bus protocol handling (break detection, sync field, checksum) eliminates external transceiver in automotive body modules |
| Hardware DTC with chain transfer | Offloads CPU for memory-to-peripheral transfers (e.g., ADC→RAM, RAM→UART); supports repeat/block modes and interrupt chaining |
| CTSU2L with noise suppression | On-die capacitance measurement engine with spread-spectrum modulation and digital filtering - achieves >60 dB noise immunity in noisy industrial environments |
Applications
| Industrial HMI Panel | Smart Thermostat |
|---|---|
Use Scenario: Touch-enabled control panel for PLC operator interface with backlight dimming and real-time status display. IC Role / Device Role / Timing Role: Main controller executing UI logic, driving segment LCD via SAU, managing CTSU2L touch keys, and synchronizing with factory network via UARTA/LIN. Use Value: 210 nA data retention preserves configuration during brownout; SMS handles periodic sensor polling without waking CPU, extending battery life in backup mode. | Use Scenario: Battery-powered residential thermostat with ambient temperature sensing, humidity compensation, and wireless gateway communication. IC Role / Device Role / Timing Role: System-on-chip managing 12-bit ADC inputs (temp/humidity), RTC-based scheduling, PWM fan control, and UARTA-to-ESP32 bridge. Use Value: 41 µA/MHz active current enables >5-year CR2032 battery life; internal 1.48 V reference ensures stable ADC accuracy across voltage drop. |
| Energy Meter Front-End | Appliance Motor Control |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, pulse output, and optical port communication. IC Role / Device Role / Timing Role: Metrology co-processor interfacing with isolated sigma-delta ADC, generating kWh pulses via TAU, and handling IRDA physical layer via UARTA. Use Value: Dual LVDs detect supply anomalies for anti-tamper logging; 24 KB RAM buffers 15-minute energy profiles during comms outage. | Use Scenario: Brushless DC motor driver in HVAC blower with speed feedback, overcurrent protection, and user interface. IC Role / Device Role / Timing Role: Motion controller generating 3-phase PWM via TAU, reading hall sensors via GPIO, processing CTSU2L buttons, and reporting faults via LIN bus. Use Value: 16-channel TAU provides independent dead-time control per phase; CTSU2L eliminates mechanical switches prone to dust ingress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLJ2DFB#BA0 | Same 80-pin LFQFP package, but 128 KB code flash, 16 KB RAM, and no CTSU2L support | Suitable for cost-sensitive industrial controllers without touch interface requirements | Select when touch sensing is unnecessary and BOM cost reduction is prioritized over future firmware scalability |
| R7F100GMK2DFB#BA0 | Same 80-pin LFQFP package, 384 KB code flash, 32 KB RAM, identical peripherals and CTSU2L capability | Required for larger firmware images (e.g., OTA update stack + encryption + BLE host stack) | Choose when application firmware exceeds 256 KB or demands extended RAM for real-time data buffering |
Compared with R7F100GLJ2DFB#BA0, the R7F100GMJ2DFB#BA0 adds 128 KB flash and CTSU2L at identical package and pinout - enabling touch-enabled feature upgrades without PCB revision; versus R7F100GMK2DFB#BA0, it trades 128 KB flash and 8 KB RAM for lower unit cost while retaining all critical interfaces for mid-tier HMI designs.
Availability
R7F100GMJ2DFB#BA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, energy meter front-ends, and appliance motor control systems requiring stable component supply across multi-year production cycles.
Supply support for R7F100GMJ2DFB#BA0 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 Corporation is a global semiconductor leader headquartered in Tokyo, Japan, delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line targets ultra-low-power embedded control applications demanding high integration, long battery life, and robust operation in harsh environments - with emphasis on human-machine interface, sensor fusion, and deterministic real-time response.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GMJ2DFB#BA0?
The R7F100GMJ2DFB#BA0 supports up to 32 MHz operation using the high-speed on-chip oscillator, achieving a minimum instruction execution time of 0.03125 µs. This timing is confirmed in the RL78/G23 datasheet Rev.1.40 Section 1.1 under "RL78 CPU core" specifications and applies directly to the R7F100GMJ2DFB#BA0 variant.
Does the R7F100GMJ2DFB#BA0 support LIN bus communication, and if so, which peripheral implements it?
Yes, the R7F100GMJ2DFB#BA0 supports LIN 2.2/SAE J2602 via its UARTA peripheral, which includes hardware-assisted break detection, sync field generation, and checksum calculation. This capability is documented in Section 1.1 "Serial interface" of the R7F100GMJ2DFB#BA0 datasheet and does not require external transceiver components.
What is the CTSU2L channel capacity and supported sensing methods for the R7F100GMJ2DFB#BA0?
The R7F100GMJ2DFB#BA0 integrates the CTSU2L unit supporting up to 32 self-capacitance channels (single-pin keys) or 64 mutual-capacitance channels (8×8 matrix). This is explicitly stated in Section 1.1 "Capacitive sensing unit" and confirmed in Table 1-2 of the RL78/G23 datasheet Rev.1.40 for the 80-pin package family including R7F100GMJ2DFB#BA0.
What are the voltage detector (LVD) thresholds and monitoring capabilities of the R7F100GMJ2DFB#BA0?
The R7F100GMJ2DFB#BA0 features two independent voltage detectors: LVD0 (selectable thresholds from 1.6 V to 4.2 V in 0.1 V steps) and LVD1 (fixed 2.8 V threshold). Both generate interrupts and can trigger reset - enabling flexible brownout detection and system-level power monitoring as specified in Section 1.1 "Power management and reset function".
Is the R7F100GMJ2DFB#BA0 pin-compatible with other RL78/G23 variants in the same 80-pin LFQFP package?
Yes, all RL78/G23 80-pin LFQFP variants - including R7F100GMG2DFB#BA0, R7F100GMH2DFB#BA0, R7F100GMJ2DFB#BA0, R7F100GMK2DFB#BA0, R7F100GML2DFB#BA0, and R7F100GMN2DFB#BA0 - share identical pinouts and electrical characteristics per Table 1-1 and Figure 1-1 of the datasheet, enabling footprint reuse across memory/configurations.
R7F100GMJ2DFB#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G23
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- Capacitive Touch, LVD, POR, PWM, WDT
- Number of I/O:
- 70
- 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 17x8/10b/12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GMJ2DFB#BA0 FAQ
1.How can I place an order for R7F100GMJ2DFB#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GMJ2DFB#BA0 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 R7F100GMJ2DFB#BA0 reliable?
The price and inventory of R7F100GMJ2DFB#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GMJ2DFB#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GMJ2DFB#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GMJ2DFB#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GMJ2DFB#BA0?
R7F100GMJ2DFB#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GMJ2DFB#BA0 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 R7F100GMJ2DFB#BA0?
For technical support, including R7F100GMJ2DFB#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GMJ2DFB#BA0 requirements.
6.How does Aetrix verify that R7F100GMJ2DFB#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GMJ2DFB#BA0 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 R7F100GMJ2DFB#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GMJ2DFB#BA0?
All R7F100GMJ2DFB#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GMJ2DFB#BA0, 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 R7F100GMJ2DFB#BA0 part is unused and in its original packaging.
Return procedure for R7F100GMJ2DFB#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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