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Renesas R7F100GJH3CFA#BA0
- Part No.:
- R7F100GJH3CFA#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R7F100GJH3CFA#BA0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
R7F100GJH3CFA#BA0 from Renesas is an RL78/G23 52-pin LQFP industrial-grade 8-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 (CTSU2L), 16-bit TAU timers (12 channels), and dual UARTA + IICA + CSI interfaces for embedded control in battery-powered and space-constrained applications.
For engineers reviewing the R7F100GJH3CFA#BA0 datasheet, R7F100GJH3CFA#BA0 pinout, R7F100GJH3CFA#BA0 application, or R7F100GJH3CFA#BA0 equivalent, key selection criteria include its 52-pin LQFP-0.65mm package, -40°C to +105°C industrial temperature rating, SNOOZE mode sequencer for ultra-low-power sensor polling, and hardware-accelerated CTSU2L supporting up to 64 mutual-capacitance keys without CPU intervention.
Technical Context
The R7F100GJH3CFA#BA0 implements the RL78 CPU core with a 3-stage pipeline, configurable instruction timing (0.03125 µs min @ 32 MHz high-speed oscillator or 30.5 µs @ 32.768 kHz subsystem clock), and multiply/divide/accumulate instructions. Its memory architecture includes 256 KB of block-erasable code flash (2 KB blocks) with security lock and self-programming support, plus 8 KB background-operable data flash rated for 1 million rewrites.
Peripheral integration centers on autonomous low-power operation: the SNOOZE mode sequencer executes up to 32 preconfigured commands (e.g., ADC sampling, CTSU measurement, comparison) without waking the CPU; the Event Link Controller (ELCL) enables direct peripheral-to-peripheral signal routing; and the Logic & Event Link Controller supports combinational logic and flip-flop-based event handling between peripherals like timers, ADC, and CTSU.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 8-bit CISC with 3-stage pipeline, 1 MB address space |
| Operating Voltage | 1.6–5.5 V - supports single-supply battery operation down to 1.6 V with full functionality |
| Flash Memory | 256 KB code flash + 8 KB data flash - enables firmware updates and parameter storage with BGO capability |
| RAM | 24 KB on-chip RAM - sufficient for real-time control stacks and sensor buffer management |
| Power Consumption | 41 µA/MHz active current; 210 nA data retention - extends battery life in always-on sensor nodes |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual-capacitance (8×8 matrix) - eliminates external touch controller IC |
| Timers | 12-channel 16-bit Timer Array Unit (TAU), 1-channel 32-bit interval timer, RTC with alarm - enables precise timing, PWM generation, and calendar functions |
| Communication | UARTA ×3, IICA ×4, CSI ×3 - provides flexible serial connectivity for sensors, displays, and host MCUs |
Pinout & Package
Package: 52-pin plastic LQFP (10 × 10 mm, 0.65-mm pitch), industrial-grade (–40°C to +105°C), tray packaging (#BA0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ADC input / UARTA TXD1 / timer input | Primary serial interface output and analog sensing channel for system diagnostics or sensor comms |
| P01 | ADC input / UARTA RxD1 / timer output | Dual-role pin enabling full-duplex UARTA channel 1 and analog monitoring of external signals |
| P10–P17 | SAU/SPI/I²C/UARTA I/O with programmable drive | Configurable serial interface bank supporting multiple protocols simultaneously via peripheral redirection |
| P30 | RTC output / CTSU sensing / timer input | Enables low-power wake-up on real-time events and capacitive touch detection without CPU involvement |
| P60/P61 | IICA SCLA0/SDAA0 | Dedicated I²C bus pins with internal pull-ups - simplifies connection to EEPROMs, sensors, and PMICs |
| P121/P122 | XT1/XT2 crystal inputs | Supports external 32.768 kHz crystal for RTC accuracy and optional high-frequency crystal for system clock stability |
| RESET | Active-low reset input | Asynchronous hardware reset with built-in POR and dual voltage detectors (LVD0/LVD1) for robust brown-out recovery |
| VDD/VSS | Power supply pins | Single 1.6–5.5 V supply with dedicated REGC capacitor pin ensures stable internal regulator operation |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step autonomous sequences (ADC, CTSU, compare) at sub-µA power - eliminates periodic CPU wake-ups for sensor polling |
| Capacitive Touch Sensing Unit (CTSU2L) | Hardware-accelerated mutual/self-capacitance sensing with noise immunity - enables robust touch UIs without firmware overhead |
| Event Link Controller (ELCL) | Direct peripheral interconnection (e.g., timer trigger → ADC start → DMA transfer) - reduces ISR latency and CPU load |
| Data Flash Background Operation (BGO) | Execute code from flash while rewriting data flash - enables seamless over-the-air updates and logging |
| High-Accuracy On-Chip Oscillators | ±1.0% 32 MHz high-speed oscillator (1.8–5.5 V, –20–+85°C) - eliminates external crystal for cost-sensitive designs |
| Peripheral I/O Redirection (PIOR) | Dynamic remapping of up to 16 peripheral functions to alternate pins - increases PCB layout flexibility and reuse |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in smart washing machine control panel managing motor drivers, water level sensors, display, and capacitive touch buttons. IC Role / Device Role / Timing Role: Main system controller executing real-time motor control loops, reading analog sensors, driving segmented LCD, and scanning 12-key CTSU overlay. Use Value: Integrated CTSU2L and 24 KB RAM eliminate external touch controller and reduce BOM; 256 KB flash accommodates field-upgradable firmware with safety checks. | Use Scenario: Battery-powered wireless temperature/humidity node with LoRaWAN backhaul, operating unattended for >5 years on two AA cells. IC Role / Device Role / Timing Role: Ultra-low-power sensor aggregator using SMS to autonomously sample ADC every 30 s, process data, and wake radio only on threshold breach. Use Value: 210 nA data retention and SNOOZE sequencer cut average current to <1 µA - directly enabling multi-year battery life without supercapacitors. |
| Medical Wearable Monitor | Building Automation Controller |
Use Scenario: Compact wearable ECG/PPG patch requiring clinical-grade signal acquisition, motion compensation, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal acquisition hub performing 12-bit ADC sampling at 1 kHz, real-time digital filtering, and SPI communication with BLE SoC. Use Value: On-chip 12-bit ADC with internal 1.48 V reference and temperature sensor enable calibrated analog front-end; UARTA + CSI provide dual serial paths to companion radios. | Use Scenario: DIN-rail mounted HVAC controller interfacing with RS-485 Modbus sensors, local capacitive HMI, and Ethernet gateway. IC Role / Device Role / Timing Role: Field-level controller running Modbus RTU slave stack, scanning 8 analog inputs, managing 4-zone PID loops, and updating 16-key touch interface. Use Value: 12-channel TAU supports simultaneous PWM outputs for fan/servo control; 3 UARTA channels enable native RS-485 transceiver control and debug port without multiplexing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GLH3CFA#BA0 | 512 KB code flash, 48 KB RAM, same 52-pin LQFP package and peripheral set | Required for larger firmware images or complex real-time OS usage | Select when application demands >256 KB flash or >24 KB RAM; identical pinout and software compatibility |
| R7F100GMH3CFA#BA0 | 192 KB code flash, 20 KB RAM, same 52-pin LQFP package and peripheral set | Suitable for cost-optimized designs with smaller firmware footprint | Select when firmware size fits within 192 KB and RAM usage stays below 20 KB; reduces BoM cost without redesign |
Compared with R7F100GLH3CFA#BA0, the R7F100GJH3CFA#BA0 trades 256 KB less flash and 24 KB less RAM for lower unit cost and power in resource-constrained applications; compared with R7F100GMH3CFA#BA0, it provides 64 KB more flash and 4 KB more RAM to accommodate feature-rich firmware and larger data buffers - all while maintaining identical pinout, temperature grade, and peripheral configuration.
Availability
R7F100GJH3CFA#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance control panels, medical wearables, and building automation controllers requiring stable component supply across long production lifecycles.
Supply support for R7F100GJH3CFA#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G23 product line targets ultra-low-power general-purpose embedded control, emphasizing energy efficiency, integrated analog peripherals, and simplified development for cost-sensitive industrial and consumer applications.
FAQ
What is the maximum operating frequency and minimum instruction cycle time for the R7F100GJH3CFA#BA0?
The R7F100GJH3CFA#BA0 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, its minimum instruction execution time is 0.03125 µs. The device also supports ultra-low-speed operation at 32.768 kHz (subsystem clock), where the minimum instruction time extends to 30.5 µs - enabling dynamic clock scaling for optimal power/performance trade-offs in battery-powered systems.
Does the R7F100GJH3CFA#BA0 support hardware debugging, and what interface is used?
Yes, the R7F100GJH3CFA#BA0 supports on-chip debugging via the single-wire SWD (Serial Wire Debug) interface using the TOOL0 and TOOLRxD/TOOLTxD pins. This enables full breakpoint, step-through, and memory inspection capabilities without requiring additional debug headers or JTAG pins - reducing PCB footprint and simplifying development setup for the R7F100GJH3CFA#BA0.
Can the R7F100GJH3CFA#BA0 operate reliably at 1.6 V, and which peripherals remain functional?
Yes, the R7F100GJH3CFA#BA0 is fully specified to operate from 1.6 V to 5.5 V. At 1.6 V, all core functions - including the RL78 CPU, 256 KB code flash, 8 KB data flash, 24 KB RAM, 12-channel TAU, CTSU2L, ADC, UARTA, IICA, and CSI - remain operational per the datasheet. The high-speed oscillator is disabled below 1.8 V, but the 32.768 kHz subsystem clock and SNOOZE sequencer continue functioning, enabling ultra-low-voltage sensor polling.
How many capacitive touch keys can the R7F100GJH3CFA#BA0 support, and what methods are available?
The R7F100GJH3CFA#BA0 integrates the CTSU2L unit supporting up to 32 self-capacitance keys (one pin per key) or up to 64 mutual-capacitance keys (8 × 8 matrix). Mutual-capacitance mode provides superior noise immunity and multi-touch capability, while self-capacitance offers simpler layout and lower pin count - both modes operate autonomously under SNOOZE sequencer control without CPU involvement.
Is the R7F100GJH3CFA#BA0 pin-compatible with other RL78/G23 variants in the 52-pin LQFP package?
Yes, all RL78/G23 devices in the 52-pin LQFP package (e.g., R7F100GJF3CFA#BA0, R7F100GJK3CFA#BA0, R7F100GJL3CFA#BA0) share identical pinouts, electrical characteristics, and package dimensions. Firmware and PCB designs are interchangeable across these variants - only flash/RAM capacities and oscillator calibration differ, enabling scalable design reuse from 96 KB to 768 KB code memory within the same footprint.
R7F100GJH3CFA#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- 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:
- 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#BA0 FAQ
1.How can I place an order for R7F100GJH3CFA#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GJH3CFA#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 R7F100GJH3CFA#BA0 reliable?
The price and inventory of R7F100GJH3CFA#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GJH3CFA#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GJH3CFA#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GJH3CFA#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GJH3CFA#BA0?
R7F100GJH3CFA#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GJH3CFA#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 R7F100GJH3CFA#BA0?
For technical support, including R7F100GJH3CFA#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GJH3CFA#BA0 requirements.
6.How does Aetrix verify that R7F100GJH3CFA#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GJH3CFA#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 R7F100GJH3CFA#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GJH3CFA#BA0?
All R7F100GJH3CFA#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GJH3CFA#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 R7F100GJH3CFA#BA0 part is unused and in its original packaging.
Return procedure for R7F100GJH3CFA#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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