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Renesas R7F100GJK2DFA#AA0
- Part No.:
- R7F100GJK2DFA#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R7F100GJK2DFA#AA0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:640
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Product details
Overview
R7F100GJK2DFA#AA0 from Renesas is a 52-pin, consumer-grade RL78/G23 16-bit microcontroller with 256 KB code flash, 24 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V. It integrates capacitive touch sensing (up to 64 keys), 12-bit ADC (26 channels), dual DAC, RTC, and ultra-low-power STOP mode (210 nA data retention). It targets battery-powered HMI and sensor-edge applications.
For engineers reviewing the R7F100GJK2DFA#AA0 datasheet, R7F100GJK2DFA#AA0 pinout, R7F100GJK2DFA#AA0 application, or R7F100GJK2DFA#AA0 equivalent, key selection criteria include its 52-pin LQFP-0.65mm package, -40°C to +85°C temperature grade, integrated CTSU2L for self/mutual-capacitance touch, and SNOOZE mode sequencer for autonomous low-power sensor polling without CPU wake-up.
Technical Context
The R7F100GJK2DFA#AA0 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). Its SNOOZE mode sequencer executes up to 32 preconfigured commands-including ADC sampling, comparison, and conditional branching-without CPU, RAM, or flash activation, enabling deterministic ultra-low-power operation.
Peripheral integration includes ELCL for event-driven signal routing between peripherals (e.g., timer-triggered ADC start), DTC for zero-CPU background data transfers, and dual IICA interfaces with hardware address matching. The CTSU2L unit supports both self-capacitance (32 keys) and mutual-capacitance (8×8 matrix) configurations with built-in noise suppression and auto-tuning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at ultra-low power |
| Flash/RAM | 256 KB code flash + 8 KB data flash + 24 KB SRAM; supports background rewriting and secure block protection |
| Power Modes | HALT (41 µA/MHz), STOP (210 nA RAM retention), SNOOZE (sub-µA autonomous peripheral sequencing) |
| ADC/DAC | 12-bit ADC with 26 input channels and internal 1.48 V reference; dual 8-bit DACs with real-time output and 0–VDD range |
| Capacitive Sensing | CTSU2L unit supporting 32 self-capacitance keys or 64 mutual-capacitance keys; operates at 1.8–5.5 V with adaptive noise cancellation |
| Timers & RTC | 16-bit TAU (12 channels), 32-bit interval timer, and calendar RTC (1 sec–99 years) with alarm and correction |
| Communication | Up to 10 IICA channels, 6 UARTA (LIN-capable), 8 CSI channels; ELCL enables hardware event chaining without CPU intervention |
Pinout & Package
Package: 52-pin plastic LQFP, 10 × 10 mm, 0.65-mm pitch (JEDEC MS-026AC), consumer-grade (2D: -40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Analog input / UARTA TX | Primary analog channel ANI17 and TxD1 signal; supports simultaneous analog sensing and serial communication |
| P01 | Analog input / UARTA RX | Primary analog channel ANI16 and RxD1 signal; enables sensor data ingestion via UART while performing ADC reads |
| P121/P122 | Crystal oscillator inputs | Support external 32.768 kHz crystal (RTC accuracy) and high-frequency crystal (up to 20 MHz) for precise timing |
| P30 | Capacitive sensing / RTC output | TSCAP pin for CTSU2L electrode drive and RTC1HZ output; enables synchronized touch polling and time-stamped events |
| P60/P61 | IICA interface | SCLA0/SDAA0 pins for primary I²C bus; support standard/fast-mode and hardware address matching for multi-device systems |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external reset supervisors and brown-out detection circuits |
| VDD/VSS | Power supply rails | Single 1.6–5.5 V supply; decoupling required on VDD and REGC (capacitor to VSS) per datasheet layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer | Executes 32-step autonomous sequences (ADC sampling → compare → conditional branch) without CPU, RAM, or flash power - reduces average system current by >90% in sensor polling |
| CTSU2L Capacitive Sensing | Hardware-accelerated self/mutual-capacitance engine with automatic calibration, noise immunity, and electrode drive optimization - eliminates need for external touch controller IC |
| Data Flash BGO | Background Operation allows full CPU execution from code flash while rewriting 8 KB data flash - enables seamless firmware parameter updates without interrupting real-time tasks |
| ELCL Event Link Controller | Configurable hardware routing between peripherals (e.g., timer overflow → ADC trigger → DTC transfer) - removes software overhead and jitter in time-critical signal chains |
| DTC Data Transfer Controller | Three transfer modes (normal, repeat, block) with chain transfer; triggered by 128+ sources - offloads memory moves from CPU for consistent ISR latency |
Applications
| Home Appliance Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Touch-enabled microwave oven control panel with rotary encoder emulation and status LED feedback. IC Role / Device Role / Timing Role: Main MCU executing touch decoding, PWM LED dimming, and serial communication to main controller; RTC provides cooking timer. Use Value: CTSU2L handles 12-button overlay with waterproof coating; SNOOZE mode maintains touch responsiveness at <1 µA average current during standby. | Use Scenario: Battery-powered vibration/temperature node in predictive maintenance system, transmitting data every 5 minutes via UART to gateway. IC Role / Device Role / Timing Role: Sensor aggregator running autonomous ADC sampling, threshold comparison, and UART wakeup - no CPU involvement until event occurs. Use Value: SNOOZE sequencer triggers ADC → compare → UART enable only on threshold breach, extending 2000 mAh battery life to >5 years. |
| Smart Thermostat Interface | Medical Wearable Monitor |
Use Scenario: Wall-mounted HVAC thermostat with capacitive slider, ambient light sensing, and local display refresh. IC Role / Device Role / Timing Role: Primary HMI processor managing touch slider, ambient ADC, display SPI, and local RTC-based scheduling. Use Value: Dual DAC outputs drive analog meter display; CTSU2L supports slider with proximity detection and palm rejection - no additional touch ASIC needed. | Use Scenario: Disposable ECG patch with dry-electrode sensing, motion compensation, and Bluetooth LE handoff. IC Role / Device Role / Timing Role: Analog front-end controller acquiring ECG (ADC), motion (accelerometer via IICA), and managing low-power state transitions. Use Value: 12-bit ADC with internal reference ensures stable gain across voltage drop; STOP mode retains full 24 KB RAM context during BLE sleep intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLK2DFA#AA0 | Same 52-pin LQFP-0.65mm package, but 512 KB flash / 48 KB RAM; identical peripheral set and SNOOZE/CTSU2L features | Targeted at designs requiring larger firmware image or more runtime variables (e.g., OTA update staging, complex state machines) | Select when future firmware growth or enhanced data buffering is anticipated; pin-compatible upgrade path with no PCB change |
| R7F100GJK3CFA#AA0 | Same 256 KB/24 KB configuration, but industrial-grade (-40°C to +105°C); identical pinout and electrical specs except extended temperature range | Required for factory automation, motor drives, or automotive cabin modules where ambient exceeds +85°C | Choose for thermal robustness in harsh environments; no functional trade-offs - direct substitution if temperature margin is critical |
Compared with R7F100GJK2DFA#AA0, the R7F100GLK2DFA#AA0 offers scalable memory headroom without altering power or peripheral behavior, while the R7F100GJK3CFA#AA0 delivers identical functionality under higher thermal stress - enabling design reuse across consumer and industrial variants with minimal qualification effort.
Availability
R7F100GJK2DFA#AA0 is available at Aetrix Electronics and suitable for home appliance control panels, industrial sensor nodes, smart thermostats, and medical wearable monitors requiring stable component supply and long-term production continuity.
Supply support for R7F100GJK2DFA#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/G23 product line delivers true low-power embedded control with integrated capacitive touch, sensor interfaces, and autonomous peripherals - designed specifically for cost-sensitive, battery-operated HMI and edge-sensing applications.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GJK2DFA#AA0?
The R7F100GJK2DFA#AA0 operates up to 32 MHz 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; the device also supports ultra-low-speed operation at 32.768 kHz (30.5 µs/instruction) for RTC and deep-sleep timing. Voltage tolerance is validated per Renesas R01DS0395EJ0140 Rev.1.40 specifications.
Does the R7F100GJK2DFA#AA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GJK2DFA#AA0 integrates the CTSU2L capacitive sensing unit supporting both self-capacitance (up to 32 keys on single pins) and mutual-capacitance (up to 64 keys in 8×8 matrix) configurations. It operates from 1.8–5.5 V, includes automatic calibration, noise cancellation, and electrode drive optimization - eliminating need for external touch controllers. Configuration is managed via dedicated registers and does not require CPU cycles during measurement.
How many serial communication interfaces does the R7F100GJK2DFA#AA0 provide, and which protocols are supported?
The R7F100GJK2DFA#AA0 provides up to 10 IICA (I²C-compatible) channels, 6 UARTA channels (including LIN-bus support), and 8 CSI (SPI-like) channels. All interfaces support hardware address matching, clock stretching, and multi-master arbitration where applicable. The ELCL enables hardware-triggered starts (e.g., timer overflow → IICA start), reducing software latency and CPU load in protocol-heavy applications.
What low-power modes are available on the R7F100GJK2DFA#AA0, and what is the lowest achievable current draw?
The R7F100GJK2DFA#AA0 offers HALT (41 µA/MHz), STOP (210 nA with 4 KB RAM retention), and SNOOZE modes. In STOP mode with full 24 KB RAM retention, current drops to 2.3 µA (typ.) - verified per R01DS0395EJ0140. SNOOZE mode enables sub-µA autonomous peripheral operation (e.g., ADC sampling + compare + GPIO toggle) without waking CPU, RAM, or flash, achieving effective system currents below 500 nA in optimized polling scenarios.
Is the R7F100GJK2DFA#AA0 pin-compatible with other RL78/G23 family members, and what package options share the same footprint?
The R7F100GJK2DFA#AA0 uses a 52-pin LQFP-0.65mm package (PLQP0052JA-A), and all RL78/G23 variants in this pin count and package type - including R7F100GJF2DFA#AA0 (96 KB), R7F100GJH2DFA#AA0 (128 KB), and R7F100GJL2DFA#AA0 (512 KB) - share identical mechanical footprint and pinout. This enables memory-scalable design reuse without PCB revision, provided peripheral usage aligns with the specific variant's feature set.
R7F100GJK2DFA#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):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x10b, 8x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GJK2DFA#AA0 FAQ
1.How can I place an order for R7F100GJK2DFA#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GJK2DFA#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 R7F100GJK2DFA#AA0 reliable?
The price and inventory of R7F100GJK2DFA#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GJK2DFA#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GJK2DFA#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GJK2DFA#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GJK2DFA#AA0?
R7F100GJK2DFA#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GJK2DFA#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 R7F100GJK2DFA#AA0?
For technical support, including R7F100GJK2DFA#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GJK2DFA#AA0 requirements.
6.How does Aetrix verify that R7F100GJK2DFA#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GJK2DFA#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 R7F100GJK2DFA#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GJK2DFA#AA0?
All R7F100GJK2DFA#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GJK2DFA#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 R7F100GJK2DFA#AA0 part is unused and in its original packaging.
Return procedure for R7F100GJK2DFA#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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