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Renesas R7F102GGC3CFB#AA0
- Part No.:
- R7F102GGC3CFB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7F102GGC3CFB#AA0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,250
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Product details
Overview
R7F102GGC3CFB#AA0 from Renesas is a 48-pin LFQFP, industrial-grade RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and integrated capacitive touch sensing for up to 29 keys. It operates from 1.6 V to 5.5 V, delivers 37.5 µA/MHz active current and 200 nA STOP-mode current, and supports UART, I²C, SPI, RTC, and 16-bit timers - deployed in battery-powered HMI control panels.
For engineers reviewing the R7F102GGC3CFB#AA0 datasheet, R7F102GGC3CFB#AA0 pinout, R7F102GGC3CFB#AA0 application, or R7F102GGC3CFB#AA0 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, -40°C to +105°C temperature rating, CTSU2La capacitive sensing unit, SNOOZE mode sequencer for ultra-low-power sensor polling, and hardware-based event link controller (ELC) for autonomous peripheral coordination without CPU wake-up.
Technical Context
The RL78/G22 core implements a 3-stage pipeline CISC architecture with configurable instruction timing: 0.03125 µs min at 32 MHz (high-speed on-chip oscillator), or 30.5 µs at 32.768 kHz (subsystem clock). It integrates a dedicated SNOOZE mode sequencer supporting 32 sequential operations using 21 command types - enabling low-power periodic ADC sampling, CTSU scanning, and RTC alarm handling without CPU involvement.
Peripheral integration includes an Event Link Controller (ELC) routing 20 event signals between peripherals, a Data Transfer Controller (DTC) with chain transfer support, and dual I²C interfaces (IICA0/IICA1) with clock stretching and arbitration. The capacitive sensing unit (CTSU2La) supports both self-capacitance (29 keys) and mutual-capacitance matrix configurations, operating across the full 1.8–5.5 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and compact code footprint for resource-constrained embedded control. |
| Flash / RAM | 32 KB code flash (2 KB block size) + 2 KB data flash + 4 KB SRAM; supports background operation (BGO) and flash shield window for secure firmware updates. |
| Power Performance | 37.5 µA/MHz active current, 200 nA STOP mode, 1.6–5.5 V operation; enables multi-year battery life in portable industrial sensors and remote controls. |
| Capacitive Sensing | CTSU2La unit supporting up to 29 self-capacitance keys or matrix configurations; eliminates external touch controller ICs and reduces BOM cost. |
| Timers & RTC | Eight 16-bit timer channels, 32-bit interval timer, and calendar-mode RTC (1 sec–99 years) with alarm and correction; suitable for time-stamped logging and scheduled wake-up. |
| Communication Interfaces | Up to 6 I²C channels, 4 UART/UARTA (LIN-capable), and 5 CSI (SPI-compatible) channels; provides flexible connectivity for multi-sensor nodes and display backplanes. |
| Operating Temperature | -40°C to +105°C (industrial grade); qualified for deployment in motor drives, HVAC controllers, and factory automation edge devices. |
Pinout & Package
48-pin LFQFP package (7 mm × 7 mm, 0.50 mm pitch), lead-free, RoHS-compliant, with exposed thermal pad connected to VSS. Pin count and package type confirmed per Renesas ordering code R7F102GGC3CFB#AA0 (FB = LFQFP, G = 48 pins, C = 32 KB flash, 3 = industrial temp).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1–P48 | Multi-function I/O ports | Configurable as digital I/O, analog inputs (up to 19-channel ADC), CTSU electrodes, UART/I²C/CSI signals, or timer capture/compare outputs - enabling single-chip HMI + control integration. |
| VDD / VSS | Power supply rails | Single 1.6–5.5 V supply; VSS must connect to exposed die pad for thermal and noise performance in high-noise industrial environments. |
| X1 / X2 | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC accuracy or high-frequency crystals up to 20 MHz; internal oscillators (1–32 MHz) eliminate need for external clocks in cost-sensitive designs. |
| RESET | Active-low reset input | Asynchronous reset with built-in POR and dual voltage detectors (LVD0/LVD1); ensures reliable startup and brown-out recovery in unstable power conditions. |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS; stabilizes internal LDO output for analog/CTSU circuitry - critical for noise-immune touch performance. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 pre-programmed CTSU/ADC/RTC operations autonomously - reduces average system power by >90% vs. CPU-polling architectures in intermittent-sensing applications. |
| Event Link Controller (ELC) | Hardware routing of 20 peripheral events (e.g., ADC end-of-conversion → DTC trigger → memory store); eliminates software interrupt latency and CPU overhead in real-time signal chains. |
| Capacitive Touch Unit (CTSU2La) | Self- and mutual-capacitance support with adjustable scan speed and noise rejection; achieves >80 dB common-mode noise immunity - validated for wet-finger and glove operation in industrial panels. |
| Data Flash with BGO | 2 KB data flash supports background rewriting (1M write cycles typ.) while executing code from main flash; enables robust parameter storage and field firmware patching without system interruption. |
| Low-Power Oscillator Options | Three independent on-chip oscillators: high-speed (1–32 MHz ±1%), middle-speed (1–4 MHz adjustable), and low-speed (32.768 kHz adjustable); eliminates external crystals in most applications. |
Applications
| Industrial HMI Panel | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Wall-mounted HVAC interface with 12-button capacitive keypad, LCD backlight control, ambient temperature/humidity sensing, and wireless module communication. IC Role / Device Role / Timing Role: Primary MCU managing touch scan, sensor ADC reads, RTC-based scheduling, UART communication with Wi-Fi/BLE module, and PWM-driven backlight dimming. Use Value: Integrated CTSU2La and 19-channel ADC eliminate external analog front-end ICs; SNOOZE mode reduces average current to <1 µA during idle periods - extending 2× AA battery life beyond 5 years. |
Use Scenario: Battery-powered programmable thermostat with occupancy detection, frost protection logic, and weekly schedule storage. IC Role / Device Role / Timing Role: System controller executing PID loop for valve actuation, reading thermistor/NTC inputs via 10-bit ADC, storing user preferences in data flash, and waking hourly via RTC alarm. Use Value: 200 nA STOP current and BGO-capable data flash enable reliable parameter retention and timekeeping over 10+ year deployments without maintenance or battery replacement. |
| Programmable Logic Relay | Portable Diagnostic Tool |
|
Use Scenario: DIN-rail mounted relay module with 8 digital inputs, 4 relay outputs, RS-485 Modbus interface, and local pushbutton configuration. IC Role / Device Role / Timing Role: Main processor handling input debouncing, output state management, Modbus RTU protocol stack, and ELC-triggered GPIO toggling synchronized to timer events. Use Value: ELC enables hardware-level input-to-output mapping (e.g., IN1 → OUT1 toggle on rising edge) with zero CPU involvement - achieving <100 ns deterministic response for safety-critical interlocks. |
Use Scenario: Handheld OBD-II scanner with Bluetooth LE, button navigation, OLED display, and vehicle bus monitoring (CAN/UART). IC Role / Device Role / Timing Role: Central controller managing USB-CDC virtual COM port, Bluetooth HCI transport, capacitive navigation keys, and CAN message filtering via hardware FIFO. Use Value: Dual UARTA interfaces allow simultaneous CAN bus sniffing and BLE packet forwarding; 48-pin LFQFP provides sufficient I/O for display interface, buttons, and debug headers without layer-count penalty on 2-layer PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GGE3CFB#AA0 | Same package and pinout, but with 64 KB code flash and identical peripherals; higher memory margin for complex protocol stacks or OTA update partitions. | Preferred where firmware size exceeds 32 KB - e.g., dual-bank bootloader + encrypted application image + diagnostic logging buffer. | Select R7F102GGE3CFB#AA0 only if code growth analysis confirms >28 KB required post-optimization; otherwise R7F102GGC3CFB#AA0 offers better cost/performance balance. |
| RA2E1 R7FA2E1A92DFM#AA0 | Arm Cortex-M23 core, 128 KB flash, 16 KB SRAM, same 48-pin LQFP package; lacks integrated CTSU but adds TrustZone, USB FS, and higher DMIPS/MHz. | Better suited for applications requiring secure boot, USB device connectivity, or future scalability to AI inference (e.g., TinyML edge analytics). | R7F102GGC3CFB#AA0 remains optimal for cost-sensitive, ultra-low-power touch HMI where CTSU offload and sub-µA STOP current are mandatory; RA2E1 is alternative only when security or USB are primary drivers. |
Compared with R7F102GGE3CFB#AA0 and RA2E1 R7FA2E1A92DFM#AA0, the R7F102GGC3CFB#AA0 delivers the lowest system-level power and highest touch integration density for industrial HMI - trading flash headroom and Arm ecosystem advantages for deterministic low-power operation and hardware-accelerated capacitive sensing.
Availability
R7F102GGC3CFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, programmable logic relays, and portable diagnostic tools requiring stable component supply across extended product lifecycles.
Supply support for R7F102GGC3CFB#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/G22 family targets cost-optimized, ultra-low-power embedded control applications - emphasizing integrated capacitive touch, hardware event orchestration, and extended temperature operation for industrial and consumer HMI systems.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102GGC3CFB#AA0?
The R7F102GGC3CFB#AA0 supports up to 32 MHz operation using its high-speed on-chip oscillator, with guaranteed functionality across its full 1.6 V to 5.5 V supply range. At 32 MHz, minimum instruction execution time is 0.03125 µs; accuracy is ±1.0% over -40°C to +85°C ambient, and ±1.5% over the full -40°C to +105°C industrial range.
Does the R7F102GGC3CFB#AA0 support hardware-based capacitive touch sensing without CPU intervention?
Yes, the R7F102GGC3CFB#AA0 integrates the CTSU2La capacitive sensing unit, which performs complete touch scan, noise cancellation, and threshold comparison autonomously. Combined with the SNOOZE mode sequencer, it can execute up to 32 sequential touch measurements - including baseline update and drift compensation - while the CPU remains in STOP mode drawing only 200 nA.
How many I²C interfaces does the R7F102GGC3CFB#AA0 provide, and what are their key capabilities?
The R7F102GGC3CFB#AA0 includes two independent I²C interfaces (IICA0 and IICA1), each supporting standard (100 kbps), fast (400 kbps), and fast-plus (1 Mbps) modes, plus clock stretching, arbitration, and 7-/10-bit addressing. Both interfaces feature dedicated hardware address matching and error detection - enabling concurrent communication with multiple sensors, EEPROMs, or display controllers without software bit-banging overhead.
What debugging and programming interfaces are supported by the R7F102GGC3CFB#AA0?
The R7F102GGC3CFB#AA0 supports on-chip debugging via the single-wire SWD interface using pins P11 (TOOLRxD) and P12 (TOOLTxD), compatible with Renesas E2 studio and CS+ IDEs. It also features ROM-based bootloader accessible via UARTA0, enabling field firmware updates without JTAG/SWD hardware - critical for sealed industrial enclosures.
Is the R7F102GGC3CFB#AA0 pin-compatible with other RL78/G22 variants in the same 48-pin LFQFP package?
Yes, all RL78/G22 48-pin LFQFP variants - including R7F102GGC3CFB#AA0 (32 KB flash), R7F102GGE3CFB#AA0 (64 KB flash), and R7F102GGC2DFB (consumer-temp version) - share identical pinouts, electrical characteristics, and peripheral mappings. This allows direct substitution during prototyping or qualification without PCB redesign.
R7F102GGC3CFB#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G22
- 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:
- 40
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GGC3CFB#AA0 FAQ
1.How can I place an order for R7F102GGC3CFB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GGC3CFB#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 R7F102GGC3CFB#AA0 reliable?
The price and inventory of R7F102GGC3CFB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GGC3CFB#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GGC3CFB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GGC3CFB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GGC3CFB#AA0?
R7F102GGC3CFB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GGC3CFB#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 R7F102GGC3CFB#AA0?
For technical support, including R7F102GGC3CFB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GGC3CFB#AA0 requirements.
6.How does Aetrix verify that R7F102GGC3CFB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GGC3CFB#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 R7F102GGC3CFB#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GGC3CFB#AA0?
All R7F102GGC3CFB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GGC3CFB#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 R7F102GGC3CFB#AA0 part is unused and in its original packaging.
Return procedure for R7F102GGC3CFB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GGC3CFB#AA0 Tags
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