Renesas R7F100GAH2DSP#BA0
- Part No.:
- R7F100GAH2DSP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F100GAH2DSP#BA0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 30LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7F100GAH2DSP#BA0 from Renesas is a 32-bit RL78/G23 microcontroller with 128 KB code flash, 8 KB data flash, and 16 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), 12-bit ADC (26 channels), dual DAC, RTC, and supports UART, I²C, SPI, and remote control signal reception - deployed in battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F100GAH2DSP#BA0 datasheet, R7F100GAH2DSP#BA0 pinout, R7F100GAH2DSP#BA0 application, or R7F100GAH2DSP#BA0 equivalent, key selection criteria include its 32-pin HWQFN package, -40°C to +85°C consumer-grade temperature range, SNOOZE mode sequencer for autonomous low-power sensing, and integrated CTSU2L supporting up to 64 keys in mutual-capacitance matrix configuration.
Technical Context
The R7F100GAH2DSP#BA0 implements the RL78 CPU core with 3-stage pipeline, configurable instruction execution time (0.03125 µs at 32 MHz high-speed mode or 30.5 µs at 32.768 kHz ultra-low-speed mode), and supports multiply/divide/accumulate instructions. Its memory subsystem includes 128 KB code flash (2 KB block size), 8 KB background-operable data flash (1M rewrite cycles), and 16 KB SRAM with 210 nA retention current.
Peripheral integration includes a 32-bit interval timer (with 8/16/32-bit counter modes), real-time clock with alarm and correction, watchdog timer, logic/event link controller (ELCL) for hardware event chaining, and SNOOZE mode sequencer (SMS) executing up to 32 programmable commands without CPU involvement - enabling deterministic low-power sensor polling and wake-up sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 32-bit CISC with 3-stage pipeline and variable instruction timing |
| Operating Voltage | 1.6–5.5 V - enables direct battery operation (e.g., 2×AA, Li-ion, or energy harvesting) |
| Power Consumption | 41 µA/MHz active current; 210 nA RAM retention - extends battery life in always-on sensing |
| Memory | 128 KB code flash (2 KB blocks), 8 KB data flash (BGO support), 16 KB RAM |
| Analog Peripherals | 12-bit ADC (26 channels, internal 1.48 V ref), 8-bit dual DAC (0–VDD output), 2-channel comparator |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual-capacitance (8×8 matrix = 64 keys) |
| Timers & RTC | 16-bit TAU (16 channels), 32-bit interval timer, RTC (sec–99 years, alarm, correction) |
| Communication | UARTA (6 ch), IICA (10 ch), CSI (8 ch), REMC (1 ch), ELCL for hardware event routing |
Pinout & Package
Package: 32-pin HWQFN (5 × 5 mm, 0.50-mm pitch) with exposed die pad (recommended to connect to VSS). Pin count and function mapping confirmed per Renesas R01DS0395EJ0140 datasheet Section 1.3.2 and Table 1-3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ADC input / UARTA TX / Timer input | Primary serial interface output and analog sensing channel; supports TI00/TxD1 functions |
| P01 | ADC input / UARTA RX / Timer output | Serial receive path and analog input; provides EO01/TO00/RxD1 functionality |
| P10–P17 | Multi-function I/O / SAU / CSI / UARTA | Configurable serial interfaces (SCK00/SI00/SO00, SCK20/SI20/SO20, etc.) and controlled-current drive |
| P20–P23 | ADC inputs / AVREFP/AVREFM / CTSU | Analog reference and capacitive sensing inputs; P20/P21 provide differential reference for ADC |
| P30–P31 | RTC / TSCAP / CTSU / BUZZER | TSCAP pin enables capacitive touch scanning; RTC1HZ and PCLBUZ0 support real-time and audible feedback |
| P50–P51 | ADC / CTSU / Serial interface (SI11/SO11) | Shared analog and communication roles; SI11/SDA11 and SO11 support I²C/SPI peripheral expansion |
| P60–P62 | I²C / CTSU / CCD | SCLA0/SDAA0 pins enable I²C master/slave; CCD04–CCD06 support CTSU electrode connections |
| RESET, REGC, VDD, VSS | Power & reset control | REGC requires 0.47–1 µF capacitor to VSS; VDD/VSS define 1.6–5.5 V supply domain |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step autonomous sequences (e.g., ADC sampling → compare → conditional wake) without CPU or flash access |
| Background Data Flash Operation | Enables firmware updates or parameter storage while executing application code from program memory |
| Capacitive Touch Sensing Unit (CTSU2L) | Supports both self- and mutual-capacitance topologies; no external components required for 64-key matrix |
| ELCL Hardware Event Linking | Routes peripheral events (e.g., ADC EOC → DMA trigger → UART TX start) without CPU intervention |
| Ultra-Low-Power Oscillator Options | High-accuracy 32.768 kHz subsystem clock ±100 ppm; selectable 1–32 MHz on-chip oscillators |
| Controlled-Current Drive Ports | 6–8 pins deliver stable current output for LED driving or analog biasing independent of VDD variation |
Applications
| Smart Thermostat Interface | Wireless Sensor Node |
|---|---|
Use Scenario: Capacitive touch panel with temperature/humidity sensing and BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing CTSU2L touch scan, 12-bit ADC acquisition, RTC timestamping, and UART-to-BLE bridge. Use Value: 210 nA RAM retention enables multi-year battery life; SMS autonomously polls sensors during sleep, reducing active time by >90%. | Use Scenario: Battery-powered environmental monitor transmitting CO₂, VOC, and ambient light via LoRaWAN. IC Role / Device Role / Timing Role: Low-power sensor aggregator using ADC, DAC (for analog sensor bias), and UART for modem control. Use Value: 41 µA/MHz active current and BGO data flash allow over-the-air parameter updates without interrupting sensor logging. |
| Industrial Panel Controller | Appliance Control Board |
Use Scenario: Small-form-factor HMI for HVAC control with buzzer feedback and relay drivers. IC Role / Device Role / Timing Role: Real-time controller handling touch UI, PCLBUZ0 audio alerts, controlled-current LED indicators, and relay timing via TAU. Use Value: Controlled-current drive ports eliminate external current-setting resistors; HALT/STOP modes meet IEC 61000-4-2 immunity requirements. | Use Scenario: Washing machine main board monitoring motor current, water level, and temperature. IC Role / Device Role / Timing Role: System MCU executing motor control loops, reading analog sensors (NTC, pressure), and managing user interface. Use Value: Dual 8-bit DAC outputs drive analog front-end biasing; 16-bit TAU channels precisely time motor commutation and valve actuation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GBH2DNP#BA0 | Same 32-pin HWQFN package, identical peripherals, but 128 KB flash / 16 KB RAM upgraded to 256 KB flash / 20 KB RAM | Required when firmware exceeds 128 KB or additional RAM needed for larger buffers or RTOS stacks | Select if future firmware growth or enhanced data logging is anticipated; pin-compatible upgrade path |
| R7F100GAH2DFP#BA0 | Same memory and peripherals, but 32-pin LQFP (7×7 mm, 0.80-mm pitch) instead of HWQFN | Suitable for through-hole prototyping or legacy PCB layouts requiring larger pitch and easier rework | Choose for manual assembly, debug-friendly layouts, or compatibility with existing LQFP footprints |
Compared with R7F100GAH2DSP#BA0, the R7F100GBH2DNP#BA0 offers scalable memory headroom without layout change, while R7F100GAH2DFP#BA0 trades miniaturization for assembly flexibility - both retain identical peripheral sets, power profiles, and SNOOZE sequencer capability.
Availability
R7F100GAH2DSP#BA0 is available at Aetrix Electronics and suitable for battery-powered HMIs, industrial sensor nodes, and appliance control boards requiring stable component supply, long-term lifecycle support, and verified Renesas authenticity.
Supply support for R7F100GAH2DSP#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 extended battery life, integrated capacitive touch, and robust real-time control - optimized for cost-sensitive, space-constrained designs in consumer and industrial equipment.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GAH2DSP#BA0?
The R7F100GAH2DSP#BA0 operates up to 32 MHz using its high-speed on-chip oscillator, supported across the full 1.6–5.5 V supply range. At 32 MHz, minimum instruction execution time is 0.03125 µs. The device maintains functional operation down to 1.6 V, enabling direct use with single-cell Li-ion or two-cell alkaline batteries without regulation.
Does the R7F100GAH2DSP#BA0 support hardware-accelerated capacitive touch sensing, and what configurations are available?
Yes, the R7F100GAH2DSP#BA0 integrates the CTSU2L unit supporting both self-capacitance (up to 32 keys on single pins) and mutual-capacitance (8×8 matrix = 64 keys) without external components. It operates under VDD = 1.8–5.5 V and includes automatic calibration, noise suppression, and proximity detection - all managed in hardware to minimize CPU load.
Can the R7F100GAH2DSP#BA0 perform background data flash writes while executing application code from program memory?
Yes, the R7F100GAH2DSP#BA0 supports Background Operation (BGO) for its 8 KB data flash memory. This allows the CPU to execute instructions from code flash while simultaneously rewriting data flash - essential for secure firmware updates, field calibration storage, or nonvolatile parameter logging without system interruption.
What low-power modes are available on the R7F100GAH2DSP#BA0, and how does SNOOZE mode differ from STOP mode?
The R7F100GAH2DSP#BA0 offers HALT, STOP, and SNOOZE modes. STOP mode shuts down the CPU and most peripherals (210 nA RAM retention). SNOOZE mode retains selected peripherals (CTSU2L, ADC, RTC, SMS) active while the CPU sleeps - the SMS executes preloaded command sequences (e.g., "sample ADC → compare → wake if threshold exceeded") autonomously, eliminating wake-up latency and CPU overhead.
Is the R7F100GAH2DSP#BA0 pin-compatible with other RL78/G23 variants in the same package footprint?
Yes, all RL78/G23 devices in the 32-pin HWQFN package (e.g., R7F100GBH2DNP#BA0, R7F100GCH2DNP#BA0) share identical pinouts and electrical characteristics. Memory size, oscillator options, and peripheral enablement vary by part number, but PCB layout, decoupling, and signal routing remain fully interchangeable - enabling scalable design reuse across performance tiers.
R7F100GAH2DSP#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:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x8/10b/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GAH2DSP#BA0 FAQ
1.How can I place an order for R7F100GAH2DSP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GAH2DSP#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 R7F100GAH2DSP#BA0 reliable?
The price and inventory of R7F100GAH2DSP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GAH2DSP#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GAH2DSP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GAH2DSP#BA0 transactions.
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R7F100GAH2DSP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GAH2DSP#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 R7F100GAH2DSP#BA0?
For technical support, including R7F100GAH2DSP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GAH2DSP#BA0 requirements.
6.How does Aetrix verify that R7F100GAH2DSP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GAH2DSP#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 R7F100GAH2DSP#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GAH2DSP#BA0?
All R7F100GAH2DSP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GAH2DSP#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 R7F100GAH2DSP#BA0 part is unused and in its original packaging.
Return procedure for R7F100GAH2DSP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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