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Renesas R7F100GSK2DFB#AA0
- Part No.:
- R7F100GSK2DFB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R7F100GSK2DFB#AA0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:421
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Product details
Overview
R7F100GSK2DFB#AA0 from Renesas is an RL78/G23 128-pin, 5.5-V, ultra-low-power 16-bit MCU with 256 KB code flash, 8 KB data flash, and 24 KB RAM, featuring capacitive touch sensing, 16-bit timers, 12-bit ADC, and multiple serial interfaces for industrial HMI and sensor node applications.
For engineers reviewing the R7F100GSK2DFB#AA0 datasheet, R7F100GSK2DFB#AA0 pinout, R7F100GSK2DFB#AA0 application, or R7F100GSK2DFB#AA0 equivalent, key selection criteria include its 128-pin LFQFP package, -40 to +85°C industrial temperature grade, 256 KB flash/24 KB RAM memory configuration, and integrated CTSU2L capacitive sensing unit supporting up to 64 keys in mutual-capacitance mode.
Technical Context
The R7F100GSK2DFB#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), and includes a SNOOZE mode sequencer enabling low-power background processing without CPU activation.
It integrates a Logic and Event Link Controller (ELCL) for flexible peripheral event routing, a Data Transfer Controller (DTC) with chain transfer capability, and dual-voltage detectors (LVD0/LVD1) for robust power monitoring across its 1.6–5.5 V operating range.
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 1.8/2.5/3.3 V peripherals and battery-powered operation |
| Flash Memory | 256 KB code flash + 8 KB data flash - enables firmware updates via BGO and secure block protection |
| RAM | 24 KB on-chip RAM - sufficient for real-time sensor fusion and multitasking in edge nodes |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention - extends battery life in always-on industrial monitors |
| ADC Resolution | 12-bit SAR ADC with 26 input channels - provides high-precision analog sensing for temperature, voltage, and current monitoring |
| Capacitive Sensing | CTSU2L unit supporting 32-key self-capacitance or 64-key 8×8 mutual-capacitance - enables robust touch UI without external ICs |
| Temperature Range | -40 to +85°C - qualified for industrial control panels and factory automation equipment |
Pinout & Package
Package: 128-pin LFQFP (14 × 20 mm, 0.50-mm pitch), lead-free, RoHS-compliant, industrial-grade (2D temperature grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 / XT1 / VBAT / EI121 | Primary crystal oscillator input / backup battery supply | Enables precise RTC timing with external 32.768 kHz crystal; VBAT pin maintains RTC during main power loss |
| P122 / X2 / EXCLK / XT2 / EXCLKS / EI122 | Secondary crystal oscillator input / external clock source | Supports high-accuracy system clock (e.g., 4–24 MHz crystal) or external clock injection for synchronization |
| P30 / VCOUT0 / TSCAP / EI30 / INTP3 / RTC1HZ / SCK11 / SCL11 | Capacitive sensing channel / RTC output / I²C interface | Dedicated CTSU2L channel for touch electrode; RTC1HZ provides 1 Hz timing signal; dual-role pins reduce layout complexity |
| P60 / EO60 / CCD04 / SCLA0 | I²C bus clock output / CTSU2L channel / general-purpose port | Configurable as I²C clock line (SCLA0) or CTSU2L electrode driver (CCD04), enabling shared pin usage for mixed-signal designs |
| P61 / EO61 / CCD05 / SDAA0 | I²C bus data output / CTSU2L channel / general-purpose port | Configurable as I²C data line (SDAA0) or CTSU2L electrode driver (CCD05), supporting compact touch + communication integration |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with external reset supervisors and pushbutton circuits |
| VDD / VSS | Main power supply / ground | Single 1.6–5.5 V supply simplifies power design; dedicated VSS pins minimize noise coupling in mixed-signal operation |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 sequential operations (e.g., ADC sampling → compare → GPIO toggle) autonomously, reducing active CPU time by >90% in periodic sensor polling |
| Background Operation (BGO) | Permits full CPU execution from code flash while rewriting data flash - enables seamless firmware updates without system interruption |
| Capacitive Touch Sensing Unit (CTSU2L) | Supports both self- and mutual-capacitance modes; eliminates need for external touch controller in HMI designs, cutting BOM cost and PCB area |
| Event Link Controller (ELCL) | Routes signals between peripherals (e.g., timer overflow → ADC trigger → DMA request) without CPU intervention, accelerating real-time response |
| Dual Voltage Detectors (LVD0/LVD1) | Configurable thresholds (e.g., LVD0 = 2.7 V for brown-out reset; LVD1 = 3.3 V for warning interrupt) enable layered power-fail handling |
| Controlled Current Drive Ports | 6–8 pins support constant-current LED drive (up to 20 mA) - simplifies status indicator design without external drivers |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface for PLCs, motor drives, and HVAC controllers requiring reliable operation in noisy factory environments. IC Role / Device Role / Timing Role: Main controller executing real-time logic, managing capacitive touch overlay, driving LCD segments, and communicating via UART/RS-485. Use Value: Integrated CTSU2L delivers noise-immune touch performance at -40 to +85°C; 256 KB flash accommodates GUI firmware and safety-certified runtime libraries. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in remote locations for 5+ years. IC Role / Device Role / Timing Role: Low-power system-on-chip handling sensor acquisition (12-bit ADC), local data processing, and LoRaWAN/Wi-Fi connectivity via UART/SPI. Use Value: 210 nA data retention current preserves RAM contents during deep sleep; BGO allows over-the-air firmware updates without waking CPU. |
| Energy Metering Interfaces | Appliance Control Units |
Use Scenario: Secondary microcontroller in smart electricity meters performing tamper detection, pulse counting, and secure meter data logging. IC Role / Device Role / Timing Role: Dedicated security and interface co-processor managing isolated RS-485/IR communication, secure flash writes, and real-time clock calibration. Use Value: Flash shield window and block erase prohibition prevent unauthorized firmware modification; RTC with ±1 ppm accuracy meets IEC 62053-21 requirements. | Use Scenario: Main control MCU in washing machines, refrigerators, and microwaves managing motor control, user input, and safety interlocks. IC Role / Device Role / Timing Role: Real-time appliance supervisor coordinating PWM motor drivers, capacitive keypad, buzzer feedback, and thermal shutdown monitoring. Use Value: Controlled current drive ports directly sink LED indicators; 16-bit TAU timers generate precise motor phase timing; dual LVDs ensure fail-safe shutdown during voltage sags. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GSL2DFB#AA0 | Same 128-pin LFQFP package and -40 to +85°C rating, but with 192 KB flash / 20 KB RAM - 25% less code space and 17% less RAM | Targeted at cost-sensitive industrial controls with smaller firmware footprints and reduced data buffering needs | Select when application firmware fits within 192 KB and real-time data buffers require ≤20 KB RAM |
| R7F100GMJ2DFB#AA0 | 80-pin LFQFP variant (12 × 12 mm) with identical 256 KB flash / 24 KB RAM and same peripheral set, but fewer I/O (64 vs. 104) | Suitable for space-constrained designs where full 128-pin I/O count is unnecessary, such as compact sensor hubs or display modules | Choose for footprint reduction when <64 GPIOs, 12-bit ADC channels, and CTSU2L functionality are sufficient |
Compared with R7F100GSL2DFB#AA0, the R7F100GSK2DFB#AA0 provides 64 KB more flash for larger GUIs or protocol stacks and 4 KB extra RAM for deeper sensor buffers; versus R7F100GMJ2DFB#AA0, it adds 44 GPIOs and 24 additional ADC channels - critical for complex HMIs with multi-zone touch and distributed analog sensing.
Availability
R7F100GSK2DFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, energy metering interfaces, and appliance control units requiring stable component supply and long-term production support.
Supply support for R7F100GSK2DFB#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 automotive, industrial, and IoT markets.
The RL78/G23 product line is engineered for ultra-low-power, cost-sensitive industrial and consumer applications demanding integrated capacitive touch, rich analog peripherals, and robust real-time performance.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GSK2DFB#AA0?
The R7F100GSK2DFB#AA0 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator, achieving a minimum instruction execution time of 0.03125 µs. This timing is confirmed in the RL78/G23 datasheet (R01DS0395EJ0140) Section 1.1, and applies directly to the R7F100GSK2DFB#AA0 as a member of the J-memory variant (256 KB flash) within the RL78/G23 family.
Does the R7F100GSK2DFB#AA0 support hardware-based capacitive touch sensing, and how many keys can it handle?
Yes, the R7F100GSK2DFB#AA0 integrates the CTSU2L capacitive sensing unit supporting up to 32 keys in self-capacitance mode or 64 keys (8 × 8 matrix) in mutual-capacitance mode. This capability is explicitly documented for all RL78/G23 devices with ≥256 KB flash, including the R7F100GSK2DFB#AA0, per Section 1.1 and Table 1-1 of the datasheet.
What are the supported serial communication interfaces on the R7F100GSK2DFB#AA0, and how many instances of each are available?
The R7F100GSK2DFB#AA0 supports up to 8 CSI (SPI-compatible) channels, 6 UART/UARTA channels (including LIN-bus support), and 10 I²C/Simplified I²C channels. These counts are specified in Section 1.1 of the datasheet and apply to the 128-pin variants like the R7F100GSK2DFB#AA0, which has the highest peripheral channel allocation in the RL78/G23 family.
Is the R7F100GSK2DFB#AA0 pin-compatible with other RL78/G23 128-pin variants such as R7F100GSJ2DFB#AA0 or R7F100GSL2DFB#AA0?
Yes, the R7F100GSK2DFB#AA0 is pin-compatible with all other RL78/G23 128-pin LFQFP variants (e.g., R7F100GSJ2DFB#AA0, R7F100GSL2DFB#AA0, R7F100GSN2DFB#AA0) sharing the same PLQP0128KD-A package. Pin configuration and multiplexed functions are identical across this 128-pin group, as confirmed in Section 1.3.7 and Table 1-7 of the datasheet.
What debug and programming interfaces are available on the R7F100GSK2DFB#AA0, and does it support on-chip debugging?
The R7F100GSK2DFB#AA0 supports on-chip debugging via the on-chip debug interface using the TOOL0, TOOLRxD, and TOOLTxD pins (P40, P11, P12). It also features self-programming capability with boot swapping and flash shield window protection, as stated in Section 1.1 "Code flash memory" of the datasheet - confirming full debug and firmware update support for the R7F100GSK2DFB#AA0.
R7F100GSK2DFB#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-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:
- 116
- 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 26x10b, 8x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GSK2DFB#AA0 FAQ
1.How can I place an order for R7F100GSK2DFB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GSK2DFB#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 R7F100GSK2DFB#AA0 reliable?
The price and inventory of R7F100GSK2DFB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GSK2DFB#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GSK2DFB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GSK2DFB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GSK2DFB#AA0?
R7F100GSK2DFB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GSK2DFB#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 R7F100GSK2DFB#AA0?
For technical support, including R7F100GSK2DFB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GSK2DFB#AA0 requirements.
6.How does Aetrix verify that R7F100GSK2DFB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GSK2DFB#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 R7F100GSK2DFB#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GSK2DFB#AA0?
All R7F100GSK2DFB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GSK2DFB#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 R7F100GSK2DFB#AA0 part is unused and in its original packaging.
Return procedure for R7F100GSK2DFB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F100GSK2DFB#AA0 Tags
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