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Renesas R7F100GMJ3CFA#AA0
- Part No.:
- R7F100GMJ3CFA#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R7F100GMJ3CFA#AA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:468
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Product details
Overview
R7F100GMJ3CFA#AA0 from Renesas is an RL78/G23 80-pin industrial-grade 16-bit MCU with 256 KB code flash, 8 KB data flash, and 24 KB RAM, operating from 1.6–5.5 V. It delivers true low-power operation (41 µA/MHz active, 210 nA data retention), integrated capacitive touch sensing (up to 64 keys), and rich peripherals including 16-bit TAU timers, RTC, 12-bit ADC (26 channels), and UART/I²C/SPI interfaces - deployed in smart sensors and battery-powered HMI control units.
For engineers reviewing the R7F100GMJ3CFA#AA0 datasheet, R7F100GMJ3CFA#AA0 pinout, R7F100GMJ3CFA#AA0 application, or R7F100GMJ3CFA#AA0 equivalent, key selection criteria include its 80-pin LQFP-0.65mm package, -40°C to +105°C industrial temperature rating, SNOOZE mode sequencer for ultra-low-power event-driven wake-up, and CTSU2L capacitive sensing unit supporting mutual-capacitance matrix layouts.
Technical Context
The R7F100GMJ3CFA#AA0 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, enabling configurable instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). Its SNOOZE mode sequencer (SMS) executes up to 32 preconfigured commands-including comparisons and calculations-without CPU, flash, or RAM activation, reducing power during intermittent sensing tasks.
Peripheral integration includes a Logic and Event Link Controller (ELCL) for hardware-triggered signal routing between functions like ADC, timers, and communications; a Data Transfer Controller (DTC) supporting chain transfers; and dual-clock domain operation with independent high-, middle-, and low-speed on-chip oscillators (±1.0% accuracy at 32 MHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; supports multiply/divide/accumulate instructions |
| Memory | 256 KB code flash (2 KB block size), 8 KB data flash (1M rewrite cycles), 24 KB RAM |
| Operating Voltage | 1.6–5.5 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic without level shifters |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention current for full 24 KB RAM |
| Temperature Range | -40°C to +105°C (industrial grade, marked "C" in part number) |
| Capacitive Sensing | CTSU2L unit supports self-capacitance (32 keys) or mutual-capacitance (8×8 matrix = 64 keys) |
| Analog Peripherals | 12-bit ADC (26 channels, internal 1.48 V reference + temp sensor); 8-bit DAC (2 channels, 0–VDD output) |
| Timers & RTC | 16-bit timer array (16 channels), 32-bit interval timer, RTC with alarm/correction, watchdog timer |
Pinout & Package
Package: 80-pin plastic LQFP (14 × 14 mm, 0.65-mm pitch), RoHS-compliant, industrial-grade (TA = -40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | Analog input / UARTA TX/RX | Support TS26/TS27 touch sense inputs and full-duplex UARTA communication |
| P10–P17 | SPI/I²C/UARTA/SCK/SI/SO pins | Configurable SAU channels for up to 6 UARTA, 10 IICA, or 8 CSI interfaces |
| P20–P26 | Analog input / CTSU / AVREFP/AVREFM | 26-channel 12-bit ADC inputs with dedicated analog reference pins and touch sense capability |
| P30–P31 | TSCAP / RTC1HZ / PCLBUZ0 | Capacitive touch scan capacitor input, real-time clock 1 Hz output, and programmable buzzer drive |
| P60–P62 | I²C SCLA0/SDAA0 / CCD06 | Dedicated I²C bus pins with noise filtering; CCD06 supports capacitive sensing channel extension |
| P70–P73 | REMC input / TS02–TS05 | Remote control signal receiver with 4-pattern matching; additional touch sense inputs |
| RESET, REGC, VDD, VSS | Power/reset management | REGC requires 0.47–1 µF capacitor to VSS; RESET is active-low with built-in POR/LVD |
| X1/X2, EXCLKS | Crystal oscillator / external clock input | Supports 32.768 kHz crystal (RTC) and up to 20 MHz external clock with frequency division |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step command sequences (compare, calc, wait) autonomously - eliminates CPU wake-up for periodic sensor polling |
| Capacitive Touch Unit (CTSU2L) | Hardware-accelerated mutual-capacitance scanning for 64-key matrix - no firmware overhead for baseline tracking or noise rejection |
| Data Flash Background Operation | Enables code execution from flash while rewriting 8 KB data flash - supports over-the-air parameter updates without system halt |
| Event Link Controller (ELCL) | Hardware routing of peripheral events (e.g., ADC EOC → DMA trigger → UART transmit) - removes interrupt latency and CPU load |
| Low-Power Oscillator Accuracy | ±1.0% high-speed on-chip oscillator (32 MHz) across 1.8–5.5 V and -20°C to +85°C - eliminates external crystal for cost-sensitive timing |
| Controlled Current Drive Ports | 6–8 pins support constant-current LED drive (up to 20 mA) - simplifies front-panel indicator design without external drivers |
Applications
| Smart Thermostats | Industrial Motor Controllers |
|---|---|
Use Scenario: Wall-mounted HVAC controller with capacitive touch panel, ambient temperature/humidity sensing, and wireless connectivity. IC Role / Device Role / Timing Role: Main system controller managing touch UI, sensor acquisition (ADC + temp sensor), RTC-based scheduling, and UART-to-WiFi module interface. Use Value: 210 nA RAM retention enables battery backup for 10+ years; CTSU2L supports 32-key self-capacitance layout with <5 µA active touch scan current. | Use Scenario: Compact 3-phase BLDC motor drive with Hall-effect feedback, thermal monitoring, and CAN diagnostics interface. IC Role / Device Role / Timing Role: Real-time motion controller executing commutation logic, reading Hall sensors via GPIO/interrupt, and managing CAN FD communication stack. Use Value: 16-bit TAU timers provide precise 100 ns PWM resolution; ELCL links Hall edge events directly to timer capture - eliminating software jitter in commutation timing. |
| Portable Medical Monitors | Energy Metering Terminals |
Use Scenario: Battery-powered pulse oximeter with optical sensor array, OLED display, and BLE radio interface. IC Role / Device Role / Timing Role: Signal processor acquiring photodiode ADC samples, driving OLED via SPI, and managing BLE UART bridge with low-latency packet handling. Use Value: SNOOZE mode sequencer triggers ADC conversions every 8 ms without CPU wake-up; 24 KB RAM buffers 30 seconds of waveform data before BLE transmission. | Use Scenario: DIN-rail mounted electricity meter with shunt-based current sensing, LCD display, and RS-485 Modbus interface. IC Role / Device Role / Timing Role: Metering engine performing RMS calculations on 26-channel ADC inputs, updating LCD via controlled-current drive ports, and handling Modbus RTU over UARTA. Use Value: 12-bit ADC with internal 1.48 V reference achieves ±0.5% gain accuracy; data flash stores calibration coefficients with 1M-cycle endurance for field recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLJ3CFA#AA0 | Same 80-pin LQFP-0.65mm package, but 512 KB flash / 48 KB RAM; identical peripheral set and pinout | Targeted at applications requiring larger firmware footprint or extended data logging buffer | Select when firmware exceeds 256 KB or >24 KB RAM is needed for complex protocol stacks |
| R7F100GMK3CFA#AA0 | Same package and memory (256 KB/24 KB), but adds 384 KB option in same family; identical pinout and electrical specs | No functional difference - variant intended for future-proofing or alternate memory binning | Valid drop-in replacement; use when sourcing flexibility or long-term supply assurance is prioritized |
Compared with R7F100GLJ3CFA#AA0, the R7F100GMJ3CFA#AA0 reduces flash/RAM capacity by 50% while maintaining identical peripheral count, power profile, and industrial temperature rating - optimizing BOM cost for fixed-function controllers. Against R7F100GMK3CFA#AA0, it offers identical functionality with verified production availability at standard pricing tiers.
Availability
R7F100GMJ3CFA#AA0 is available at Aetrix Electronics and suitable for smart thermostats, portable medical monitors, industrial motor controllers, and energy metering terminals requiring stable component supply across extended product lifecycles.
Supply support for R7F100GMJ3CFA#AA0 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 specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial HMI applications - emphasizing integrated capacitive touch, robust timing, and seamless peripheral event chaining.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GMJ3CFA#AA0?
The R7F100GMJ3CFA#AA0 operates up to 32 MHz using its high-speed on-chip oscillator, with guaranteed functionality across its full 1.6–5.5 V supply range. At 32 MHz, the minimum instruction execution time is 0.03125 µs. The device maintains timing specifications down to 1.6 V, enabling direct integration with single-cell Li-ion or multi-cell alkaline power sources without regulators.
Does the R7F100GMJ3CFA#AA0 support hardware-accelerated capacitive touch sensing, and what configurations are available?
Yes, the R7F100GMJ3CFA#AA0 integrates the CTSU2L capacitive sensing unit supporting both self-capacitance (up to 32 keys on single pins) and mutual-capacitance (8×8 matrix = 64 keys). It operates under VDD = 1.8–5.5 V, includes automatic noise cancellation, and requires no CPU intervention during scan - making it ideal for low-power HMI applications where the R7F100GMJ3CFA#AA0 manages touch detection autonomously.
How does the SNOOZE mode sequencer (SMS) in the R7F100GMJ3CFA#AA0 reduce system-level power consumption?
The SNOOZE mode sequencer in the R7F100GMJ3CFA#AA0 executes up to 32 preloaded commands-including value comparisons, arithmetic operations, and conditional waits-without activating the CPU, flash, or RAM. This allows periodic sensor sampling or status checks at µA-level current, cutting average system power by >90% versus CPU-wake polling. The R7F100GMJ3CFA#AA0 remains fully responsive to external interrupts while SMS runs independently.
What are the key differences between the data flash and code flash memory blocks in the R7F100GMJ3CFA#AA0?
The R7F100GMJ3CFA#AA0 features 256 KB code flash (for program storage) and 8 KB data flash (for nonvolatile parameter storage). Data flash supports background operation (BGO): code executes from code flash while data flash is rewritten. It guarantees 1,000,000 write cycles (typ.) and enables safe field updates of calibration data or configuration settings - a critical capability absent in standard code flash, which requires full erase before reprogramming.
Can the R7F100GMJ3CFA#AA0 interface directly with 1.8 V or 2.5 V peripherals, and which pins support this?
Yes, the R7F100GMJ3CFA#AA0 supports mixed-voltage interfacing: its N-ch open-drain I/O pins (10–33 channels depending on variant) and TTL input buffers accept 1.8 V, 2.5 V, or 3.0 V logic levels when VDD is ≥ 2.7 V. These pins can be configured with on-chip pull-up resistors, enabling direct connection to low-voltage sensors or communication ICs without external level shifters - a key design advantage confirmed in the R7F100GMJ3CFA#AA0 datasheet section 1.1.
R7F100GMJ3CFA#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G23
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 17x8/10b/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GMJ3CFA#AA0 FAQ
1.How can I place an order for R7F100GMJ3CFA#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GMJ3CFA#AA0 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 R7F100GMJ3CFA#AA0 reliable?
The price and inventory of R7F100GMJ3CFA#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GMJ3CFA#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GMJ3CFA#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GMJ3CFA#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GMJ3CFA#AA0?
R7F100GMJ3CFA#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GMJ3CFA#AA0 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 R7F100GMJ3CFA#AA0?
For technical support, including R7F100GMJ3CFA#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GMJ3CFA#AA0 requirements.
6.How does Aetrix verify that R7F100GMJ3CFA#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GMJ3CFA#AA0 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 R7F100GMJ3CFA#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GMJ3CFA#AA0?
All R7F100GMJ3CFA#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GMJ3CFA#AA0, 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 R7F100GMJ3CFA#AA0 part is unused and in its original packaging.
Return procedure for R7F100GMJ3CFA#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F100GMJ3CFA#AA0 Tags
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