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Renesas R7F100GJK3CFA#AA0
- Part No.:
- R7F100GJK3CFA#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R7F100GJK3CFA#AA0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:640
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Product details
Overview
R7F100GJK3CFA#AA0 from Renesas is an RL78/G23 52-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 ultra-low power consumption (41 µA/MHz active, 210 nA data retention), integrated capacitive touch sensing (CTSU2L), and dual-clock domain operation supporting high-speed (32 MHz) and ultra-low-speed (32.768 kHz) modes for battery-powered sensor nodes and smart industrial controls.
For engineers reviewing the R7F100GJK3CFA#AA0 datasheet, R7F100GJK3CFA#AA0 pinout, R7F100GJK3CFA#AA0 application, or R7F100GJK3CFA#AA0 equivalent, key selection criteria include its 52-pin LFQFP-0.65mm package, -40°C to +105°C industrial temperature rating, SNOOZE mode sequencer for autonomous low-power sensing, and hardware-accelerated CTSU2L supporting up to 64 mutual-capacitance keys.
Technical Context
The R7F100GJK3CFA#AA0 implements the RL78 CPU core with a 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). Its SNOOZE mode sequencer (SMS) executes up to 32 preconfigured commands-including ADC sampling, comparator evaluation, and CTSU2L scanning-without CPU wake-up, enabling deterministic sub-microamp background operation.
Peripheral integration includes a 10-channel 12-bit ADC with internal 1.48 V reference and temperature sensor, dual 8-bit DACs with real-time output, 2-channel comparators with selectable internal/external references, and flexible serial interfaces: up to 10 I²C/Simplified I²C channels, 6 UARTA/LIN channels, and 8 CSI (SPI-compatible) channels-all configurable via peripheral I/O redirection register (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Operating Voltage | 1.6–5.5 V - 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 - enables multi-year battery life in always-on sensor endpoints |
| Memory | 256 KB code flash (2 KB block size), 8 KB data flash (1M rewrite cycles), 24 KB RAM - sufficient for complex control + OTA update staging |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual-capacitance (8×8 matrix, 64 keys) - no external components required |
| Timers & RTC | 16-bit TAU (12 channels), 32-bit interval timer, and calendar-mode RTC (1 sec–99 years) with alarm and clock correction |
| Package & Temp | 52-pin LQFP, 0.65 mm pitch, industrial grade (-40°C to +105°C) - compatible with standard reflow and automated optical inspection |
Pinout & Package
52-pin plastic LQFP (10 × 10 mm, 0.65-mm pitch), JEDEC MS-026AC compliant, with exposed thermal pad recommended to be connected to VSS for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | Analog input / UARTA TX/RX | Support simultaneous ADC sampling and LIN bus communication on same pins via time-multiplexed configuration |
| P10–P12 | SPI master (SCK/SI/SO) / UARTA | Hardware SAU channels enable full-duplex SPI or UART operation without CPU overhead |
| P14–P15 | DAC output / buzzer controller | Two independent 8-bit DACs drive analog outputs or generate precise audio tones for HMI feedback |
| P30–P31 | RTC output / CTSU2L scan / timer I/O | Single pin serves as RTC 1 Hz clock, capacitive touch scan electrode, and timer capture/compare channel |
| P60–P61 | I²C SCL/SDA / CTSU2L CCD | Dual-function pins reduce BOM count: used for I²C communication or as CTSU2L charge-discharge channels |
| P121–P122 | XTAL input/output (32.768 kHz / 1–20 MHz) | Supports crystal oscillator or external clock source; enables precise RTC timing and low-jitter system clock |
| RESET | Active-low reset input | Includes built-in POR and dual voltage detectors (LVD0/LVD1) for robust brown-out detection at multiple thresholds |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step autonomous sequences (ADC, CTSU2L, comparator, GPIO toggle) without CPU or flash access - reduces average system power by >90% during idle sensing |
| Capacitive Touch Unit (CTSU2L) | Self- and mutual-capacitance support with hardware noise cancellation - achieves >60 dB SNR in noisy industrial environments without firmware filtering |
| Data Flash Background Operation | Background operation (BGO) allows program execution from code flash while rewriting data flash - enables seamless firmware parameter updates without interrupting real-time control |
| ELCL Event Link Controller | Configurable logic circuit routes events between peripherals (e.g., ADC EOC → DMA trigger → UART transmit) - eliminates CPU polling and reduces latency to <100 ns |
| Controlled Current Drive Ports | 6–8 pins support programmable 2–10 mA sink/source - directly drives LEDs, relays, or optocouplers without external drivers |
Applications
| Industrial Sensor Node | Smart Thermostat |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node deployed in HVAC ducts or factory floors. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, CTSU2L-based button interface, LIN bus diagnostics, and RTC-scheduled BLE wake-up. Use Value: 210 nA data retention and SMS-driven periodic ADC+CTSU2L scan extend 2xAA battery life beyond 5 years. | Use Scenario: Residential/commercial wall-mounted thermostat with capacitive touch UI and local PID control. IC Role / Device Role / Timing Role: System-on-chip managing 12-bit ADC (NTC thermistor), 8-bit DAC (valve actuator), CTSU2L (glass overlay buttons), and real-time scheduling. Use Value: Integrated CTSU2L eliminates external touch controller IC; dual DACs provide smooth proportional valve control without external op-amps. |
| Programmable Logic Controller (PLC) I/O Module | Industrial Motor Starter |
Use Scenario: DIN-rail mounted digital I/O expansion module with 8-channel isolated inputs and 4-channel relay outputs. IC Role / Device Role / Timing Role: Central MCU handling opto-isolator input sampling, controlled-current drive for LED status indicators, and Modbus RTU over UARTA. Use Value: Controlled-current drive ports (6–8 pins) directly sink 5–10 mA per LED indicator; ELCL links input edge events to UART transmission triggers. | Use Scenario: Compact motor starter with overload protection, soft-start sequencing, and push-button HMI. IC Role / Device Role / Timing Role: Real-time controller executing 1 ms PWM for soft-start, CTSU2L for membrane keypad, and watchdog-timed fault shutdown. Use Value: Hardware watchdog timer (running on 32.768 kHz oscillator) ensures fail-safe shutdown even if main clock fails; 16-bit TAU provides precise 1 ms timing resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLK3CFA#AA0 | 512 KB code flash, 48 KB RAM, same 52-pin LQFP package and peripheral set | Required for larger firmware images or extended data logging buffers | Select when application firmware exceeds 256 KB or requires >24 KB RAM for real-time analytics |
| R7F100GJK3CFA#AA1 | Identical electrical specs and pinout; differs only in tape-and-reel packaging (#AA1 vs #AA0 tray) | No functional difference - intended for automated SMT assembly lines requiring embossed tape | Choose #AA1 for high-volume pick-and-place production; #AA0 remains optimal for prototyping and low-volume builds |
Compared with R7F100GLK3CFA#AA0, the R7F100GJK3CFA#AA0 trades flash/RAM headroom for cost efficiency in fixed-function industrial controllers; compared with R7F100GJK3CFA#AA1, it offers identical silicon functionality but optimized for manual or semi-automated assembly workflows.
Availability
R7F100GJK3CFA#AA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, PLC I/O modules, and motor starters requiring stable component supply across extended product lifecycles.
Supply support for R7F100GJK3CFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G23 product line targets ultra-low-power industrial and consumer control applications, emphasizing energy efficiency, integrated human-machine interface (HMI) peripherals, and long-term supply assurance for mission-critical embedded systems.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GJK3CFA#AA0?
The R7F100GJK3CFA#AA0 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator, which maintains ±1.0% accuracy across VDD = 1.8–5.5 V and TA = –20°C to +85°C. At 32 MHz, the device consumes 41 µA per MHz, and the minimum supply voltage for full-speed operation is 1.8 V. Below 1.8 V, the core automatically scales to lower frequencies (e.g., 24 MHz at 1.6 V) to maintain stability.
Does the R7F100GJK3CFA#AA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GJK3CFA#AA0 integrates the CTSU2L capacitive touch sensing unit, supporting both self-capacitance (up to 32 keys on single pins) and mutual-capacitance (8×8 matrix, up to 64 keys) configurations. It includes hardware noise cancellation, automatic drift compensation, and programmable scan timing - all without CPU intervention. The unit operates across the full VDD range (1.8–5.5 V) and is qualified for industrial ESD immunity per IEC 61000-4-2 Level 4.
How does the SNOOZE mode sequencer (SMS) function in the R7F100GJK3CFA#AA0, and what operations can it perform autonomously?
The SNOOZE mode sequencer (SMS) in the R7F100GJK3CFA#AA0 executes up to 32 preloaded commands without waking the CPU, flash, or RAM. Supported operations include ADC conversions, CTSU2L scans, comparator evaluations, GPIO toggles, and timer starts/stops. Each command can include conditional branching based on result values, enabling autonomous state machines for periodic sensing - reducing average current to sub-microamp levels while maintaining precise timing control.
What are the key differences between the R7F100GJK3CFA#AA0 and the R7F100GLK3CFA#AA0 beyond memory capacity?
Beyond the doubled code flash (256 KB vs 512 KB) and RAM (24 KB vs 48 KB), the R7F100GLK3CFA#AA0 adds two additional 16-bit timer channels and one extra UARTA channel. Both share identical peripheral sets (CTSU2L, ELCL, SAU, RTC), pinout, package, and electrical specifications. No changes to PCB layout or firmware driver layer are needed when upgrading - only application code and linker script adjustments for expanded memory usage.
Is the R7F100GJK3CFA#AA0 qualified for industrial temperature operation, and what thermal management guidance applies?
Yes, the R7F100GJK3CFA#AA0 is rated for industrial ambient temperature operation from –40°C to +105°C (suffix "C" in part number denotes industrial field-of-application). For thermal management in high-density layouts, Renesas recommends connecting the exposed die pad (present in HWQFN packages) to a VSS plane; however, the R7F100GJK3CFA#AA0 uses LQFP packaging without an exposed pad, so standard 10-layer PCB thermal vias under the package body are sufficient to maintain junction temperature within spec at 100% CPU load.
R7F100GJK3CFA#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-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:
- 44
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 12x10b, 8x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GJK3CFA#AA0 FAQ
1.How can I place an order for R7F100GJK3CFA#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GJK3CFA#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 R7F100GJK3CFA#AA0 reliable?
The price and inventory of R7F100GJK3CFA#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GJK3CFA#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GJK3CFA#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GJK3CFA#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GJK3CFA#AA0?
R7F100GJK3CFA#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GJK3CFA#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 R7F100GJK3CFA#AA0?
For technical support, including R7F100GJK3CFA#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GJK3CFA#AA0 requirements.
6.How does Aetrix verify that R7F100GJK3CFA#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GJK3CFA#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 R7F100GJK3CFA#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GJK3CFA#AA0?
All R7F100GJK3CFA#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GJK3CFA#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 R7F100GJK3CFA#AA0 part is unused and in its original packaging.
Return procedure for R7F100GJK3CFA#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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