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Renesas R7F100GJJ3CFA#BA0
- Part No.:
- R7F100GJJ3CFA#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R7F100GJJ3CFA#BA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
R7F100GJJ3CFA#BA0 from Renesas is a 52-pin LFQFP, industrial-grade RL78/G23 16-bit microcontroller with 256 KB code flash, 8 KB data flash, and 24 KB RAM. It delivers true low-power operation (41 µA/MHz active, 210 nA data retention), integrated capacitive touch sensing (CTSU2L), 12-bit ADC (26 channels), dual DAC, RTC, and multiple serial interfaces including UARTA, IICA, and CSI - deployed in battery-powered industrial HMI and sensor node applications.
For engineers reviewing the R7F100GJJ3CFA#BA0 datasheet, R7F100GJJ3CFA#BA0 pinout, R7F100GJJ3CFA#BA0 application, or R7F100GJJ3CFA#BA0 equivalent, key selection criteria include its 52-pin LFQFP-0.65mm package, -40°C to +105°C industrial temperature rating, 256 KB flash/24 KB RAM memory configuration, CTSU2L capacitive sensing support, and SNOOZE mode sequencer for ultra-low-power periodic wake-up without CPU involvement.
Technical Context
The R7F100GJJ3CFA#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, with the latter enabling autonomous 32-step command sequencing using 21 built-in instructions - eliminating CPU wake-up for routine sensor polling or timing tasks.
Peripheral integration centers on event-driven operation: the Event Link Controller (ELCL) routes signals between peripherals (e.g., ADC completion → DMA trigger), while the Data Transfer Controller (DTC) supports block, repeat, and chain transfers activated by interrupts - enabling efficient background data movement without CPU overhead.
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 clock scaling. |
| Operating Voltage | 1.6 V to 5.5 V single supply; supports direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters. |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention (4 KB RAM); reduces battery drain in always-on edge nodes. |
| Memory | 256 KB code flash (2 KB blocks), 8 KB data flash (1M rewrite cycles), 24 KB RAM; sufficient for secure firmware + logging in compact industrial controllers. |
| Analog Peripherals | 12-bit ADC (26 channels, internal 1.48 V reference), 2× 8-bit DAC (0–VDD output), 2× comparator; enables local signal conditioning and analog actuation. |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual capacitance (8×8 matrix); eliminates external touch controller in HMI designs. |
| Timers & RTC | 16-bit TAU (12 channels), 32-bit interval timer, RTC with alarm/correction; provides precise timekeeping and multi-channel PWM generation. |
| Serial Interfaces | UARTA (3 channels, LIN support), IICA (4 channels), CSI (3–8 channels); enables robust communication with sensors, displays, and host systems. |
Pinout & Package
Package: 52-pin LFQFP, 10 mm × 10 mm, 0.65 mm pitch, industrial-grade (–40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ADC input / UARTA transmit | Primary serial TX for UARTA channel 1; also serves as 12-bit ADC input ANI17 for analog sensor interfacing. |
| P01 | ADC input / UARTA receive | Primary serial RX for UARTA channel 1; also functions as ADC input ANI16 for dual-sensor acquisition. |
| P10–P17 | Multi-function serial I/O | Configurable for SCK/SI/SO (CSI), SCL/SDA (IICA), or TxD/RxD (UARTA); enables flexible peripheral routing via PIOR register. |
| P30 | RTC output / touch sense | Provides 1 Hz RTC clock (RTC1HZ) and TSCAP for CTSU2L self-capacitance sensing - critical for low-power wake-up and touch button detection. |
| P60/P61 | IICA bus interface | SCLA0/SDAA0 pins dedicated to I²C bus 0; support standard/fast-mode communication with EEPROMs, sensors, and PMICs. |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; initiates full system restart on external assertion or POR/LVD events. |
| VDD/VSS | Power supply rails | Dual 1.6–5.5 V supply pins; decoupling required at REGC (capacitor to VSS) for stable internal regulator operation. |
| REGC | Regulator capacitor terminal | Connect 0.47–1 µF capacitor to VSS to stabilize on-chip voltage regulator - mandatory for reliable operation across voltage/temp range. |
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 system power by >90% in periodic monitoring. |
| Capacitive Touch Sensing Unit (CTSU2L) | Supports both self-capacitance (32 keys) and mutual capacitance (64-key matrix) with hardware noise cancellation - enables robust touch UI in noisy industrial environments. |
| Data Flash Background Operation (BGO) | Permits full CPU execution from code flash while rewriting 8 KB data flash - enables seamless firmware parameter updates and data logging without interrupt latency. |
| Event Link Controller (ELCL) | Hardware routing of 21 peripheral event signals (e.g., ADC EOC → DTC start); eliminates software polling and ISR overhead for time-critical data flows. |
| Low-Power Oscillator Options | High-accuracy 32.768 kHz subsystem clock (±100 ppm) + selectable high-speed on-chip oscillators (1–32 MHz, ±1.0%); enables precise RTC and dynamic frequency scaling. |
| Security Functions | Flash block erase/write prohibition and boot swapping support; prevents unauthorized firmware modification and enables secure over-the-air update rollback. |
Applications
| Industrial HMI Panel | Battery-Powered Sensor Node |
|---|---|
Use Scenario: Compact touch-enabled control panel for HVAC or PLC operator interface with LED indicators and buzzer feedback. IC Role / Device Role / Timing Role: Main controller executing touch decoding (CTSU2L), driving buzzer (PCLBUZ0/1), managing UARTA comms with host PLC, and maintaining RTC for scheduling. Use Value: Integrated CTSU2L and dual PCLBUZ eliminate external touch controller and audio driver ICs; 210 nA retention extends battery life to >5 years in sleep-dominated operation. | Use Scenario: Wireless environmental monitor (temp/humidity/pressure) logging data locally and transmitting via UART to LoRa module. IC Role / Device Role / Timing Role: Sensor hub aggregating analog inputs (ADC), storing calibrated readings in data flash, waking every 10 s via SMS to sample and transmit. Use Value: SMS autonomously triggers ADC conversion, stores result in RAM, and asserts UARTA TX - CPU remains in STOP mode, achieving sub-1 µA average current. |
| Smart Energy Meter Interface | Factory Automation I/O Module |
Use Scenario: DIN-rail mounted meter add-on board providing isolated RS-485 communication and tamper detection via capacitive switch. IC Role / Device Role / Timing Role: Isolation bridge controller handling UARTA-to-RS485 translation, detecting cover removal via CTSU2L on enclosure seam, and logging events to data flash. Use Value: Dual UARTA channels enable simultaneous host comms and isolated bus interface; data flash endurance (1M cycles) supports 10+ years of tamper-event logging. | Use Scenario: Modular I/O expansion unit with 8 digital inputs, 4 analog inputs, and 4 relay outputs controlled via CAN or Modbus RTU. IC Role / Device Role / Timing Role: Peripheral manager acquiring analog inputs (ADC), reading digital inputs (GPIO), driving relays (controlled-current ports), and communicating via UARTA/Modbus. Use Value: Controlled-current drive ports (6–8 pins) directly sink/source 10–20 mA for relay coils; 26 ADC channels support future analog sensor expansion without redesign. |
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 | 512 KB flash, 48 KB RAM, same 52-pin LFQFP package and peripheral set. | Targeted at applications requiring larger firmware (e.g., embedded web server, OTA update stack) or extended data buffering. | Select when firmware complexity exceeds 256 KB or RAM usage exceeds 24 KB - identical pinout and software compatibility simplify migration. |
| R7F100GMJ3CFA#BA0 | 80-pin LQFP, 256 KB flash, 24 KB RAM, adds 4 more ADC channels and 2 additional UARTA channels. | Suitable for higher I/O count systems like multi-sensor gateways or motor control with encoder feedback. | Choose when >52 pins or >26 ADC channels are needed; requires PCB redesign but retains identical peripheral IP and toolchain. |
Compared with R7F100GLJ3CFA#BA0 and R7F100GMJ3CFA#BA0, the R7F100GJJ3CFA#BA0 offers optimal balance of memory, I/O, and power efficiency for cost-sensitive, space-constrained industrial controls - delivering full RL78/G23 feature set without over-provisioning flash or pin count.
Availability
R7F100GJJ3CFA#BA0 is available at Aetrix Electronics and suitable for industrial HMI panels, battery-powered sensor nodes, smart energy meter interfaces, and factory automation I/O modules requiring stable component supply across extended product lifecycles.
Supply support for R7F100GJJ3CFA#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 is designed for ultra-low-power, cost-sensitive industrial and consumer applications requiring integrated analog peripherals, capacitive touch, and robust communication - targeting battery-operated HMIs, sensor nodes, and smart appliances.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GJJ3CFA#BA0?
The R7F100GJJ3CFA#BA0 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, the minimum instruction execution time is 0.03125 µs. This timing is achievable across the full industrial temperature range (–40°C to +105°C) and supply voltage (1.6 V to 5.5 V), enabling deterministic real-time performance in demanding control loops.
Does the R7F100GJJ3CFA#BA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GJJ3CFA#BA0 integrates the CTSU2L capacitive touch sensing unit. It supports self-capacitance mode for up to 32 independent touch keys and mutual capacitance mode in an 8×8 matrix configuration for up to 64 keys. Both modes include hardware noise cancellation and automatic drift compensation - no external components or firmware filtering required for reliable operation in electrically noisy industrial settings.
How does the SNOOZE mode sequencer (SMS) in the R7F100GJJ3CFA#BA0 reduce system power consumption?
The SNOOZE mode sequencer (SMS) in the R7F100GJJ3CFA#BA0 executes up to 32 predefined operations - such as ADC sampling, value comparison, and GPIO toggling - entirely in hardware without CPU, flash, or RAM activation. This allows the R7F100GJJ3CFA#BA0 to remain in ultra-low-power STOP mode while performing periodic sensor reads or status checks, reducing average current to sub-microamp levels and extending battery life significantly in duty-cycled applications.
What are the key differences between the data flash and code flash memory in the R7F100GJJ3CFA#BA0?
The R7F100GJJ3CFA#BA0 features 256 KB of code flash (for program storage) and 8 KB of separate data flash (for non-volatile parameter storage). Code flash is organized in 2 KB blocks with security lock bits to prevent unauthorized erasure; data flash supports background operation (BGO), allowing CPU code execution during write/erase, and guarantees 1,000,000 rewrite cycles - making it ideal for logging, calibration storage, and field-updatable configuration data.
Can the R7F100GJJ3CFA#BA0 operate reliably across the full industrial temperature range, and what design considerations ensure this?
Yes, the R7F100GJJ3CFA#BA0 is rated for –40°C to +105°C operation (industrial grade, denoted by "C" in the part number). To ensure reliability, Renesas specifies all electrical parameters - including oscillator accuracy (±1.0% from –20°C to +85°C), ADC linearity, and I/O drive strength - across this range. Critical design requirements include proper REGC decoupling (0.47–1 µF to VSS) and adherence to recommended PCB layout practices for thermal dissipation and noise immunity.
R7F100GJJ3CFA#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-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:
- 44
- 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 12x10b, 8x12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GJJ3CFA#BA0 FAQ
1.How can I place an order for R7F100GJJ3CFA#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GJJ3CFA#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 R7F100GJJ3CFA#BA0 reliable?
The price and inventory of R7F100GJJ3CFA#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GJJ3CFA#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GJJ3CFA#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GJJ3CFA#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GJJ3CFA#BA0?
R7F100GJJ3CFA#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GJJ3CFA#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 R7F100GJJ3CFA#BA0?
For technical support, including R7F100GJJ3CFA#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GJJ3CFA#BA0 requirements.
6.How does Aetrix verify that R7F100GJJ3CFA#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GJJ3CFA#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 R7F100GJJ3CFA#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GJJ3CFA#BA0?
All R7F100GJJ3CFA#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GJJ3CFA#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 R7F100GJJ3CFA#BA0 part is unused and in its original packaging.
Return procedure for R7F100GJJ3CFA#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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