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Renesas R7F100GMG3CFA#BA0
- Part No.:
- R7F100GMG3CFA#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R7F100GMG3CFA#BA0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
R7F100GMG3CFA#BA0 from Renesas is an RL78/G23 80-pin industrial-grade 16-bit MCU with 128 KB code flash, 8 KB data flash, and 16 KB RAM, operating from 1.6–5.5 V at -40 to +105°C. It delivers true low-power operation (41 µA/MHz active, 210 nA data retention), integrated capacitive touch sensing (CTSU2L), 16-bit TAU timers, RTC, and dual UART/I²C/SPI interfaces - deployed in smart sensors and battery-powered HMI control units.
For engineers reviewing the R7F100GMG3CFA#BA0 datasheet, R7F100GMG3CFA#BA0 pinout, R7F100GMG3CFA#BA0 application, or R7F100GMG3CFA#BA0 equivalent, key selection criteria include its 80-pin LQFP-0.65mm package, industrial temperature rating (3C), SNOOZE mode sequencer for autonomous low-power sensing, and CTSU2L support for up to 64-key mutual-capacitance touch panels.
Technical Context
The R7F100GMG3CFA#BA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). Its power management includes HALT, STOP, and SNOOZE modes - the latter enabling 32-step autonomous sequencing without CPU/RAM/flash activation.
Peripheral integration includes a 10-channel 10-bit A/D converter with internal 1.48 V reference and temperature sensor, two 8-bit D/A outputs (0–VDD), dual comparators with selectable internal/external references, and Logic & Event Link Controller (ELCL) for hardware-triggered peripheral chaining without software intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and ultra-low-power sleep/wake cycles. |
| Flash Memory | 128 KB code flash + 8 KB data flash; supports background operation (BGO) and 1M rewrite cycles for firmware updates and logging. |
| RAM | 16 KB on-chip RAM; retains full 4 KB of data at 210 nA in STOP mode for critical state preservation. |
| Operating Voltage | 1.6–5.5 V single supply; eliminates need for external voltage regulators in multi-rail systems. |
| Temperature Range | -40 to +105°C (industrial grade, 3C); qualified for under-hood automotive sensors and factory-floor controllers. |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual-capacitance (8×8 matrix, 64 keys); operates down to 1.8 V with built-in noise suppression. |
| Timers & RTC | 16-bit Timer Array Unit (TAU) with 8–16 channels; 1-channel 32-bit interval timer; calendar-mode RTC with alarm and ±1 ppm correction capability. |
Pinout & Package
Package: 80-pin plastic LQFP (14 × 14 mm, 0.65-mm pitch), RoHS-compliant, industrial-grade (3C) marking. Pin count and function mapping confirmed per Renesas R01DS0395EJ0140 Rev.1.40, Table 1-1 and Figure 1-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 / XT1 / VBAT / EI121 | Primary crystal oscillator input / backup battery input | Supports 32.768 kHz crystal for RTC; VBAT enables RTC operation during main power loss. |
| P122 / X2 / EXCLK / XT2 / EXCLKS / EI122 | Secondary crystal oscillator input / external clock input | Enables high-accuracy 1–20 MHz system clock source or external timing reference. |
| P30 / VCOUT0 / TSCAP / EI30 / INTP3 / RTC1HZ / SCK11 / SCL11 | Capacitive touch channel / RTC output / I²C interface | Dedicated CTSU2L channel with integrated charge pump; RTC1HZ provides precise 1 Hz interrupt; dual-function I²C port. |
| P60 / EO60 / CCD04 / SCLA0 | I²C serial clock line / CTSU2L channel / general-purpose output | Hardware-accelerated I²C master/slave; shared with CTSU2L for reduced pin count in touch+sensor designs. |
| P147 / ANI18 / IVCMP0 / EI147 | Analog input / comparator input / interrupt source | Configurable as ADC input (10-bit), comparator reference or signal path, with dedicated interrupt for threshold detection. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 autonomous steps (e.g., ADC sampling → compare → GPIO toggle) without CPU wake-up, reducing average current by >90% in periodic sensing. |
| Capacitive Touch Unit (CTSU2L) | Supports both self- and mutual-capacitance methods; immune to water/dirt via spread-spectrum modulation and auto-calibration - validated for IP67 front panels. |
| Data Flash Background Operation (BGO) | Permits full CPU execution from code flash while rewriting data flash - enables seamless over-the-air (OTA) parameter updates without system freeze. |
| Logic & Event Link Controller (ELCL) | Hardware routing of 21 event signals between peripherals (e.g., timer overflow → ADC trigger → DMA transfer), eliminating ISR latency and CPU overhead. |
| Ultra-Low-Power STOP Mode | 210 nA retention current with 4 KB RAM preserved; wake-up time < 3.5 µs from external interrupt or RTC alarm - ideal for energy-harvesting nodes. |
Applications
| Smart Thermostats | Industrial Motor Controllers |
|---|---|
Use Scenario: Wall-mounted HVAC controller with capacitive touch buttons, ambient temperature/humidity sensing, and wireless communication. IC Role / Device Role / Timing Role: Main system controller managing touch UI, sensor acquisition, PID loop execution, and UART-based Zigbee/Thread radio interface. Use Value: CTSU2L enables robust touch through glass overlays; 10-bit ADC with internal reference eliminates external sensor signal conditioning; RTC maintains scheduling across power cycles. | Use Scenario: Compact 3-phase BLDC motor drive with Hall-effect feedback, thermal monitoring, and CAN bus diagnostics. IC Role / Device Role / Timing Role: Real-time motion controller executing commutation logic, fault detection, and CAN message handling at 10 kHz update rate. Use Value: TAU timers provide precise PWM generation with dead-time insertion; ELCL links hall sensor edges directly to timer reload events; 105°C rating ensures reliability near motor windings. |
| Portable Medical Monitors | Energy Metering Modules |
Use Scenario: Battery-powered pulse oximeter with optical sensor array, OLED display, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Sensor hub aggregating photodiode ADC readings, driving display via SPI, and managing BLE link layer timing. Use Value: 41 µA/MHz active current extends battery life to >1 week; SNOOZE mode sequences LED pulsing and ADC sampling autonomously; 8 KB data flash stores calibration coefficients. | Use Scenario: DIN-rail mounted electricity meter with shunt-based current sensing, LCD display, and RS-485 communication. IC Role / Device Role / Timing Role: Metrology co-processor performing RMS calculations, tariff switching, and secure firmware updates via RS-485. Use Value: Dual comparators monitor overvoltage/overcurrent thresholds with <100 ns response; data flash BGO enables field-upgradable tariff tables without service interruption. |
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#BA0 | 64-pin LQFP, 256 KB flash, 24 KB RAM - same core/peripherals but higher memory and smaller package. | Better suited for space-constrained designs needing more code space but fewer I/Os (e.g., compact gateways). | Select when board layout requires ≤64 pins and firmware exceeds 128 KB; verify CTSU2L channel count (26 vs. 32 analog inputs) matches sensor count. |
| R7F100GMH3CFA#BA0 | Same 80-pin LQFP package, 192 KB flash, 20 KB RAM - identical pinout and peripheral set with increased memory. | Direct upgrade path for applications scaling firmware size while retaining all I/O and timing resources. | Choose for future-proofing or incremental feature expansion without PCB revision; no changes to schematic or layout required. |
Compared with R7F100GLJ3CFA#BA0, the R7F100GMG3CFA#BA0 provides 16 additional I/O pins and CTSU2L channel headroom for larger touch panels, while R7F100GMH3CFA#BA0 offers 64 KB more flash for complex protocol stacks - all share identical SNOOZE sequencer behavior and industrial temperature qualification.
Availability
R7F100GMG3CFA#BA0 is available at Aetrix Electronics and suitable for industrial motor control, smart building thermostats, portable medical devices, and energy metering modules requiring stable component supply across extended product lifecycles.
Supply support for R7F100GMG3CFA#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line targets cost-sensitive, ultra-low-power embedded applications demanding robust capacitive touch, precise timing, and long-term industrial reliability - optimized for battery-operated and harsh-environment deployments.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GMG3CFA#BA0?
The R7F100GMG3CFA#BA0 supports up to 32 MHz operation using the high-speed on-chip oscillator, with guaranteed functionality across its full 1.6–5.5 V supply range. At 32 MHz, minimum instruction execution time is 0.03125 µs; accuracy is ±1.0% over -40 to +85°C and VDD = 1.8–5.5 V. The device also supports ultra-low-speed operation at 32.768 kHz for RTC and deep-sleep functions.
Does the R7F100GMG3CFA#BA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GMG3CFA#BA0 integrates the CTSU2L (Capacitive Touch Sensing Unit Level 2) supporting both self-capacitance (up to 32 keys, single-pin per key) and mutual-capacitance (up to 64 keys in 8×8 matrix) configurations. It operates from 1.8–5.5 V, includes spread-spectrum modulation for noise immunity, and features automatic drift compensation - validated for wet-finger and glove operation on glass or plastic overlays.
How many serial communication interfaces does the R7F100GMG3CFA#BA0 include, and what protocols are supported?
The R7F100GMG3CFA#BA0 includes up to 6 UARTA channels (with LIN-bus support), 4–10 I²C/Simplified I²C channels, and 3–8 CSI (SPI-compatible) channels. Specifically, the 80-pin variant supports 6 UARTA, 10 I²C, and 8 CSI channels - all configurable via peripheral I/O redirection register (PIOR) to maximize pin reuse without hardware redesign.
What power-saving modes are available on the R7F100GMG3CFA#BA0, and what is the lowest achievable current draw?
The R7F100GMG3CFA#BA0 offers HALT, STOP, and SNOOZE modes. In STOP mode with 4 KB RAM retention, it draws 210 nA (typ.) at VDD = 3.0 V and TA = 25°C. SNOOZE mode enables autonomous peripheral sequencing (e.g., ADC → compare → GPIO) without CPU, RAM, or flash activation - achieving sub-µA average current in periodic sensing applications.
Is the R7F100GMG3CFA#BA0 pin-compatible with other RL78/G23 variants, and what package options share the same footprint?
The R7F100GMG3CFA#BA0 uses an 80-pin LQFP (14 × 14 mm, 0.65-mm pitch) package with PLQP0080JA-B Renesas code. It is pin-compatible with all other RL78/G23 80-pin LQFP variants including R7F100GMH3CFA#BA0, R7F100GMJ3CFA#BA0, and R7F100GMK3CFA#BA0 - differing only in flash/RAM sizes and not in pin assignment or electrical characteristics.
R7F100GMG3CFA#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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K 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:
R7F100GMG3CFA#BA0 FAQ
1.How can I place an order for R7F100GMG3CFA#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GMG3CFA#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 R7F100GMG3CFA#BA0 reliable?
The price and inventory of R7F100GMG3CFA#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GMG3CFA#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GMG3CFA#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GMG3CFA#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GMG3CFA#BA0?
R7F100GMG3CFA#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GMG3CFA#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 R7F100GMG3CFA#BA0?
For technical support, including R7F100GMG3CFA#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GMG3CFA#BA0 requirements.
6.How does Aetrix verify that R7F100GMG3CFA#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GMG3CFA#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 R7F100GMG3CFA#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GMG3CFA#BA0?
All R7F100GMG3CFA#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GMG3CFA#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 R7F100GMG3CFA#BA0 part is unused and in its original packaging.
Return procedure for R7F100GMG3CFA#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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