Renesas R7F100GJH3CFA#AA0
- Part No.:
- R7F100GJH3CFA#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R7F100GJH3CFA#AA0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:640
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Product details
Overview
R7F100GJH3CFA#AA0 from Renesas is a 52-pin, industrial-grade RL78/G23 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 true low-power operation (41 µA/MHz active, 210 nA data retention), integrated capacitive touch sensing (up to 64 keys), and rich peripherals including 16-bit timers, 12-bit ADC (26 channels), UART/LIN, I²C, and SPI - deployed in battery-powered industrial HMI and sensor node applications.
For engineers reviewing the R7F100GJH3CFA#AA0 datasheet, R7F100GJH3CFA#AA0 pinout, R7F100GJH3CFA#AA0 application, or R7F100GJH3CFA#AA0 equivalent, key selection considerations include its 52-pin LQFP-0.65mm package, -40°C to +105°C temperature rating, SNOOZE mode sequencer for autonomous low-power sensing, and hardware-based ELCL event linking for deterministic peripheral coordination without CPU intervention.
Technical Context
The RL78/G23 core implements a 3-stage CISC pipeline with configurable instruction timing (0.03125 µs at 32 MHz high-speed mode; 30.5 µs at 32.768 kHz ultra-low-speed mode), supporting multiply/divide/accumulate instructions and 1 MB address space. It integrates a dedicated SNOOZE mode sequencer (SMS) capable of executing 32 sequential operations using 21 command types - enabling sensor polling, threshold comparison, and state transitions entirely in STOP mode without CPU wake-up.
Peripheral integration includes an Event Link Controller (ELCL) that routes signals between functions (e.g., timer overflow → ADC trigger → DMA transfer), a Capacitive Touch Sensing Unit (CTSU2L) supporting both self- and mutual-capacitance methods, and dual-voltage I/O (1.8/2.5/3.0 V compatible) with N-ch open-drain pins rated to 6 V - all managed via register-level configuration without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with <31 ns min. instruction time at 32 MHz. |
| Memory | 256 KB code flash (2 KB blocks), 8 KB data flash (1M rewrite cycles), 24 KB RAM - supports secure boot, BGO, and flash shield window. |
| Power Performance | 41 µA/MHz active current; 210 nA data retention (4 KB RAM); HALT/STOP/SNOOZE modes - extends battery life in always-on sensing nodes. |
| Analog Peripherals | 12-bit ADC (26 ch, internal 1.48 V ref, temp sensor), 8-bit DAC (2 ch, 0–VDD output), 2-channel comparator with selectable refs - enables closed-loop analog signal conditioning. |
| Timers & RTC | 16-bit TAU (12 ch), 32-bit interval timer (1×32-bit, 2×16-bit, 4×8-bit modes), RTC (sec–99 yr, alarm, correction) - provides precise timekeeping and multi-rate periodic tasks. |
| Communication Interfaces | UART/LIN (3 ch), I²C (4 ch), CSI/SPI (3 ch), SAU (6 ch), REMC (1 ch) - supports mixed-protocol industrial networks and remote IR control. |
| Capacitive Sensing | CTSU2L unit: self-capacitance (32 keys), mutual-capacitance (8×8 matrix = 64 keys), VDD = 1.8–5.5 V - eliminates external touch controller in HMI designs. |
Pinout & Package
Package: 52-pin LQFP, 10 × 10 mm, 0.65-mm pitch, industrial temperature grade (-40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 | XT1 / VBAT / EI121 | Primary crystal oscillator input (32.768 kHz) and backup battery supply input - enables RTC operation during main power loss. |
| P122 | X2 / EXCLK / EI122 | Crystal oscillator output or external clock input - supports precision timing source selection and clock domain isolation. |
| P30 | TSCAP / RTC1HZ / EI30 | Dedicated touch sensing capacitor connection and 1-Hz RTC output - provides direct CTSU2L reference and real-time tick for UI updates. |
| P60 / P61 | SCLA0 / SDAA0 | I²C bus interface pins (clock/data) with internal pull-ups - enables direct connection to sensors, EEPROMs, and PMICs without external resistors. |
| P10–P12 | SCK00 / SI00 / SO00 | CSI/SPI master interface (clock, input, output) - supports daisy-chained peripherals like ADCs or displays with hardware-controlled framing. |
| P00 / P01 | TxD1 / RxD1 | UARTA channel 1 transmit/receive pins - used for LIN physical layer communication or debug console with auto-baud detection. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 autonomous steps (e.g., ADC sampling → compare → GPIO toggle) in STOP mode - reduces average system power by >90% vs. CPU polling. |
| Event Link Controller (ELCL) | Hardware routing of 21 event sources to 16 destinations (e.g., timer match → ADC start → DTC transfer) - eliminates software overhead and interrupt latency in time-critical chains. |
| Capacitive Touch Sensing Unit (CTSU2L) | Supports mutual-capacitance 8×8 matrix (64 keys) with noise immunity and automatic drift compensation - enables robust touch panels without firmware tuning. |
| Data Flash Background Operation (BGO) | Execute code from flash while rewriting data flash - allows seamless firmware parameter updates or logging without halting real-time control loops. |
| Dual-Voltage I/O Ports | Interface directly with 1.8 V, 2.5 V, or 3.0 V peripherals using same VDD - eliminates level shifters in mixed-voltage industrial subsystems. |
Applications
| Industrial HMI Panel | Battery-Powered Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled operator interface on factory floor equipment with LED status feedback and button navigation. IC Role / Device Role: Main controller managing capacitive touch decoding, display SPI interface, LED PWM dimming, and LIN bus communication to PLC. Use Value: CTSU2L handles 64-key matrix autonomously; SMS wakes only on valid gesture, reducing average current to <5 µA during idle - extending 2xAA battery life to >5 years. |
Use Scenario: Wireless environmental monitor (temp/humidity/pressure) deployed in remote locations with 10-year battery target. IC Role / Device Role: System-on-chip performing sensor acquisition, local data fusion, low-power BLE wakeup signaling, and RTC-triggered transmission bursts. Use Value: 210 nA RAM retention preserves calibration and state across deep sleep; 12-bit ADC + internal temp sensor enable ±0.5°C accuracy without external references. |
| Smart Energy Meter | Home Appliance Control Board |
|
Use Scenario: DIN-rail mounted electricity meter with tamper detection, pulse output, and RS-485 communication. IC Role / Device Role: Primary metrology controller interfacing with isolated ADC, driving optical pulse LED, managing anti-tamper GPIOs, and handling Modbus RTU over RS-485. Use Value: N-ch open-drain I/O (6 V tolerant) directly drives optocouplers; hardware UART LIN support simplifies firmware for utility communication protocols. |
Use Scenario: Washing machine main control board requiring motor commutation, water level sensing, and user interface with buzzer and LED indicators. IC Role / Device Role: Central MCU managing triac firing, ADC-based pressure transducer reading, capacitive keypad, buzzer tone generation, and relay drivers. Use Value: Integrated PCLBUZ0/1 timers generate precise audio tones; controlled-current drive ports directly sink LED loads up to 20 mA - eliminating discrete drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLH3CFA#AA0 | 512 KB code flash, 48 KB RAM, same 52-pin LQFP package and peripheral set - higher memory density for complex protocol stacks. | Required when firmware exceeds 256 KB or requires >24 KB RAM for large buffers or OTA update staging. | Select if future firmware growth or dual-application partitioning (e.g., safety + non-safety) demands extra memory headroom. |
| R7F100GMH3CFA#AA0 | 192 KB code flash, 20 KB RAM, identical 52-pin LQFP package and feature set - reduced memory footprint at lower cost. | Suitable for cost-sensitive applications with static firmware and minimal runtime data requirements. | Choose for high-volume production where memory utilization stays below 160 KB code and 16 KB RAM - lowers BOM cost without sacrificing pin compatibility. |
Compared with R7F100GJH3CFA#AA0, R7F100GLH3CFA#AA0 offers double flash/RAM for scalable firmware but increases unit cost, while R7F100GMH3CFA#AA0 reduces memory and cost but constrains feature-rich updates - all share identical timing, peripherals, and thermal specs in the same industrial-grade package.
Availability
R7F100GJH3CFA#AA0 is available at Aetrix Electronics and suitable for industrial HMI, battery-powered sensor nodes, smart energy meters, and home appliance control boards requiring stable component supply across extended product lifecycles.
Supply support for R7F100GJH3CFA#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 targets ultra-low-power, cost-sensitive industrial and consumer applications requiring integrated analog, capacitive touch, and deterministic real-time control - designed to replace discrete analog + MCU combinations with single-chip reliability.
FAQ
What is the maximum operating frequency and voltage range supported by the R7F100GJH3CFA#AA0?
The R7F100GJH3CFA#AA0 operates at up to 32 MHz using its high-speed on-chip oscillator (±1.0% accuracy) and supports a wide VDD range of 1.6 V to 5.5 V - enabling direct integration into systems powered by single-cell Li-ion, 3.3 V rails, or legacy 5 V supplies without external regulators.
Does the R7F100GJH3CFA#AA0 include hardware debugging support?
Yes, the R7F100GJH3CFA#AA0 includes full on-chip debugging capability via the TOOL0, TOOLRxD, and TOOLTxD pins - supporting Renesas E2 emulator and CS+ IDE for real-time trace, breakpoint, and memory inspection without requiring additional debug headers or SWD adapters.
How many capacitive touch channels does the R7F100GJH3CFA#AA0 support, and what configurations are available?
The R7F100GJH3CFA#AA0 integrates the CTSU2L unit supporting up to 32 self-capacitance keys (single-pin per key) or 64 mutual-capacitance keys (8×8 matrix). Both modes operate across the full VDD range (1.8–5.5 V) and include automatic noise cancellation and baseline drift compensation - no external components required.
Can the R7F100GJH3CFA#AA0 perform ADC conversions while in low-power STOP mode?
No - ADC operation requires the CPU or peripheral clock domain to be active. However, the R7F100GJH3CFA#AA0 supports SNOOZE mode, where the SMS can autonomously trigger ADC sampling, process results, and wake the CPU only upon threshold violation - achieving near-STOP power with functional sensing.
What packaging and temperature grade does the R7F100GJH3CFA#AA0 use?
The R7F100GJH3CFA#AA0 is supplied in a 52-pin LQFP package (10 × 10 mm, 0.65-mm pitch) with industrial temperature rating (–40°C to +105°C), indicated by the "C" in the part number and confirmed by the "3C" ambient temperature field designation in Renesas documentation.
R7F100GJH3CFA#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:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K 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:
R7F100GJH3CFA#AA0 FAQ
1.How can I place an order for R7F100GJH3CFA#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GJH3CFA#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 R7F100GJH3CFA#AA0 reliable?
The price and inventory of R7F100GJH3CFA#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GJH3CFA#AA0 is usually 5 days.
3.What payment methods are accepted for R7F100GJH3CFA#AA0?
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Once your R7F100GJH3CFA#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 R7F100GJH3CFA#AA0?
For technical support, including R7F100GJH3CFA#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GJH3CFA#AA0 requirements.
6.How does Aetrix verify that R7F100GJH3CFA#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GJH3CFA#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 R7F100GJH3CFA#AA0 meets industry standards.
7.What is the process for return or replacement of R7F100GJH3CFA#AA0?
All R7F100GJH3CFA#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GJH3CFA#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 R7F100GJH3CFA#AA0 part is unused and in its original packaging.
Return procedure for R7F100GJH3CFA#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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