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Renesas R7F100GAJ2DSP#BA0
- Part No.:
- R7F100GAJ2DSP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F100GAJ2DSP#BA0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,680
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Product details
Overview
R7F100GAJ2DSP#BA0 from Renesas is a 32-pin RL78/G23 16-bit microcontroller 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), integrates capacitive touch sensing (CTSU2L), RTC, 16-bit TAU timers, UARTA/IICA/SAU interfaces, and supports consumer-grade operation from −40 to +85°C.
For engineers reviewing the R7F100GAJ2DSP#BA0 datasheet, R7F100GAJ2DSP#BA0 pinout, R7F100GAJ2DSP#BA0 application, or R7F100GAJ2DSP#BA0 equivalent, key selection criteria include its 32-pin HWQFN (5 × 5 mm, 0.50-mm pitch) package, 256 KB flash capacity, CTSU2L-based touch interface support, and SNOOZE mode sequencer for autonomous low-power sensor polling.
Technical Context
The R7F100GAJ2DSP#BA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting configurable instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). It features a dedicated SNOOZE mode sequencer (SMS) enabling up to 32 sequential low-power operations without CPU wake-up.
Peripheral integration includes a Logic and Event Link Controller (ELCL) for hardware event routing between functions, a Data Transfer Controller (DTC) with chain transfer capability, and a capacitive sensing unit (CTSU2L) supporting both self- and mutual-capacitance methods-up to 32 keys (self) or 64 keys (8×8 matrix)-with VDD = 1.8–5.5 V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing control and low gate count for cost-sensitive embedded designs. |
| Flash Memory | 256 KB code flash + 8 KB data flash; supports background operation (BGO) and 1M rewrite cycles for robust firmware/data updates. |
| RAM | 24 KB on-chip RAM; retains data at 210 nA in STOP mode, enabling long battery life in always-on sensor nodes. |
| Operating Voltage | 1.6–5.5 V single supply; eliminates need for external voltage regulators in multi-rail systems and simplifies power design. |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) and mutual-capacitance (64 keys); enables reliable touch UI without external ICs. |
| Low-Power Modes | HALT, STOP, and SNOOZE modes; SNOOZE sequencer executes 32-step sequences autonomously, reducing system-level wake-up overhead. |
| Package | 32-pin HWQFN (5 × 5 mm, 0.50-mm pitch); compact footprint ideal for space-constrained consumer electronics PCBs. |
Pinout & Package
Package: 32-pin HWQFN (5 × 5 mm, 0.50-mm pitch), exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Multi-function I/O with SAU/SPI/I²C/UART support | Enable flexible peripheral routing via PIOR register; supports simultaneous serial communication (e.g., I²C master + UART slave). |
| P20–P23, P00–P01, P120, P147 | Analog input channels (ANI0–ANI19) | 10-bit ADC with internal 1.48 V reference and temperature sensor; supports up to 26 analog inputs across variants. |
| P30, P31, P70–P73 | Capacitive touch sense pins (TSCAP, TSxx) | Direct connection to CTSU2L; enables self-capacitance (single-key) or mutual-capacitance (matrix) touch detection without external components. |
| P121/P122 | Crystal oscillator inputs (X1/X2) | Supports 32.768 kHz crystal for RTC accuracy or high-speed crystal for precise timing; internal oscillators provide ±1.0% accuracy. |
| RESET, REGC, VDD, VSS | Power and reset management | REGC requires 0.47–1 µF capacitor to VSS; integrated POR and dual LVDs enable robust brown-out protection. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 pre-programmed commands (e.g., ADC sampling, CTSU measurement, comparison) without CPU involvement-reducing average system current by >90% in periodic sensing tasks. |
| Capacitive Touch Unit (CTSU2L) | Hardware-accelerated touch sensing with noise immunity; supports both self- and mutual-capacitance topologies, eliminating need for external touch controllers in HMI designs. |
| Data Flash Background Operation (BGO) | Allows full CPU execution from code flash while rewriting data flash-enabling seamless over-the-air (OTA) parameter updates without interrupting real-time control loops. |
| Event Link Controller (ELCL) | Configurable hardware routing of peripheral events (e.g., timer overflow → ADC trigger → DMA request); removes software overhead and improves deterministic response latency. |
| Real-Time Clock (RTC) | Full calendar (seconds to years) with alarm and clock correction; operates independently in STOP mode using 32.768 kHz subsystem clock-ideal for time-stamped logging and scheduling. |
Applications
| Smart Home Remote Control | Portable Medical Sensor Node |
|---|---|
Use Scenario: Battery-powered infrared remote with touch-sensitive buttons and gesture recognition. IC Role / Device Role / Timing Role: R7F100GAJ2DSP#BA0 serves as main controller executing CTSU2L touch scanning, REMC waveform decoding, and IR carrier generation via TAU PWM. Use Value: 210 nA STOP-mode retention extends coin-cell life beyond 2 years; SNOOZE sequencer polls touch keys every 500 ms without waking CPU. | Use Scenario: Wearable pulse oximeter with optical sensing, analog front-end, and Bluetooth LE interface. IC Role / Device Role / Timing Role: R7F100GAJ2DSP#BA0 manages synchronized ADC sampling of photodiode signals, calculates SpO₂ via onboard math engine, and buffers results in 24 KB RAM before BLE transmission. Use Value: 10-bit ADC with internal 1.48 V reference ensures stable analog measurements across 1.6–5.5 V supply range; 256 KB flash accommodates signal processing firmware and calibration tables. |
| Industrial Panel Meter Interface | White Goods Appliance Control |
Use Scenario: DIN-rail mounted energy meter with capacitive touch overlay and RS-485 communication. IC Role / Device Role / Timing Role: R7F100GAJ2DSP#BA0 handles CTSU2L-based button detection, UARTA-driven RS-485 protocol stack, and RTC-based energy logging intervals. Use Value: ELCL links timer interrupts to ADC triggers for precise sampling synchronization; 8 KB data flash stores tariff schedules and metering history with BGO support. | Use Scenario: Washing machine main control board managing motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: R7F100GAJ2DSP#BA0 executes motor commutation timing via TAU, reads pressure sensor via ADC, and drives segmented LED display using controlled-current port pins. Use Value: Controlled-current drive ports (6–8 pins) directly sink LED current without external drivers; 41 µA/MHz active current reduces thermal load in enclosed cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GBJ2DNP | Same RL78/G23 family, 32-pin HWQFN, but with 128 KB code flash and 16 KB RAM. | Lower memory capacity suits simpler control-only tasks without complex UI or data logging. | Select when firmware size <128 KB and RAM usage <16 KB; reduces BOM cost without sacrificing peripheral set or low-power capability. |
| R7F100GCJ2DLA | 36-pin WFLGA (4 × 4 mm), 192 KB flash, 20 KB RAM; same voltage/temperature specs. | Smaller package with higher pin density; lacks exposed die pad, limiting thermal performance in continuous operation. | Choose for ultra-compact PCBs where 32-pin HWQFN layout area is constrained, accepting tighter routing and no thermal pad. |
Compared with R7F100GBJ2DNP and R7F100GCJ2DLA, the R7F100GAJ2DSP#BA0 provides optimal balance of memory headroom (256 KB flash), capacitive touch scalability (32-key self-capacitance), and thermal reliability (exposed die pad), making it preferred for feature-rich consumer HMI designs requiring field-upgradable firmware and long battery life.
Availability
R7F100GAJ2DSP#BA0 is available at Aetrix Electronics and suitable for smart home remotes, portable medical sensors, industrial panel meters, white goods controllers, and battery-powered IoT edge nodes requiring stable component supply and long-term manufacturability.
Supply support for R7F100GAJ2DSP#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 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 embedded applications demanding rich peripheral integration-including CTSU2L, RTC, and SNOOZE sequencer-in compact packages for cost-sensitive consumer and industrial devices.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GAJ2DSP#BA0?
The R7F100GAJ2DSP#BA0 supports up to 32 MHz operation using its 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 for RTC and deep-sleep timing, maintaining operation down to 1.6 V.
Does the R7F100GAJ2DSP#BA0 support hardware-accelerated capacitive touch sensing, and what configurations are available?
Yes, the R7F100GAJ2DSP#BA0 integrates the CTSU2L capacitive touch sensing unit. It supports self-capacitance mode (up to 32 keys on a single pin per key) and mutual-capacitance mode (up to 64 keys in an 8×8 matrix configuration). Both operate within VDD = 1.8–5.5 V and include built-in noise suppression algorithms, enabling robust touch detection without external components.
What low-power modes does the R7F100GAJ2DSP#BA0 offer, and how does SNOOZE mode differ from STOP mode?
The R7F100GAJ2DSP#BA0 offers HALT, STOP, and SNOOZE modes. In STOP mode, CPU, flash, and RAM are halted; wake-up occurs via interrupt. SNOOZE mode keeps the CTSU2L, ADC, and RTC active while CPU remains stopped-its sequencer autonomously executes up to 32 predefined commands (e.g., "sample channel 5," "compare result to threshold") without CPU intervention, achieving lower average current than periodic STOP wake-ups.
Can the R7F100GAJ2DSP#BA0 perform background data flash writes while executing application code from main flash memory?
Yes, the R7F100GAJ2DSP#BA0 supports Background Operation (BGO) for its 8 KB data flash. While the CPU executes instructions from code flash, the data flash can be rewritten-enabling safe over-the-air (OTA) parameter updates, calibration storage, or event logging without halting real-time application logic or introducing timing jitter.
What is the pin-compatible upgrade path from the R7F100GAJ2DSP#BA0 within the RL78/G23 family?
There is no pin-compatible upgrade within the RL78/G23 family that increases flash/RAM while retaining the exact 32-pin HWQFN package. The R7F100GAJ2DSP#BA0 (256 KB/24 KB) is the highest-memory variant in the 32-pin HWQFN option. To increase memory, migration requires moving to larger packages (e.g., 40-pin HWQFN or 44-pin LQFP) such as R7F100GEJ2DNP (192 KB) or R7F100GFJ2DFP (256 KB in 44-pin LQFP), which involve PCB layout changes.
R7F100GAJ2DSP#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- 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:
- 25
- 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):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b/12b; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GAJ2DSP#BA0 FAQ
1.How can I place an order for R7F100GAJ2DSP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GAJ2DSP#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 R7F100GAJ2DSP#BA0 reliable?
The price and inventory of R7F100GAJ2DSP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GAJ2DSP#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GAJ2DSP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GAJ2DSP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GAJ2DSP#BA0?
R7F100GAJ2DSP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GAJ2DSP#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 R7F100GAJ2DSP#BA0?
For technical support, including R7F100GAJ2DSP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GAJ2DSP#BA0 requirements.
6.How does Aetrix verify that R7F100GAJ2DSP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GAJ2DSP#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 R7F100GAJ2DSP#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GAJ2DSP#BA0?
All R7F100GAJ2DSP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GAJ2DSP#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 R7F100GAJ2DSP#BA0 part is unused and in its original packaging.
Return procedure for R7F100GAJ2DSP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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