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Renesas R7F102GFC2DFP#AA0
- Part No.:
- R7F102GFC2DFP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R7F102GFC2DFP#AA0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,363
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Product details
Overview
R7F102GFC2DFP#AA0 from Renesas is a 44-pin LQFP-packaged 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 current, and targets battery-powered HMI and industrial control applications.
For engineers reviewing the R7F102GFC2DFP#AA0 datasheet, R7F102GFC2DFP#AA0 pinout, R7F102GFC2DFP#AA0 application, or R7F102GFC2DFP#AA0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, 32 KB flash/4 KB RAM memory configuration, CTSU2La capacitive touch unit, RTC with alarm, and dual UART/I²C/SPI interface support for sensor-rich embedded designs.
Technical Context
The R7F102GFC2DFP#AA0 implements the RL78 CPU core with a 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). Its SNOOZE mode sequencer enables low-power background processing of up to 32 commands without CPU, flash, or RAM activation.
It integrates a 10-bit A/D converter with 10 analog inputs, internal 1.48 V reference, and temperature sensor; a real-time clock with 99-year calendar and alarm interrupt; and an event link controller (ELC) that routes 20 peripheral event signals without CPU intervention for deterministic timing-critical tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and selectable instruction speed modes |
| Flash / RAM | 32 KB code flash + 2 KB data flash + 4 KB SRAM - supports self-programming with boot swapping and BGO |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode - enables multi-year battery life in portable devices |
| Capacitive Touch | CTSU2La unit supporting 29 keys via self- or mutual-capacitance methods - no external components required |
| Timers & RTC | Eight 16-bit TAU channels; 32-bit interval timer; RTC with calendar, alarm, and 1-second interrupt output |
| Communication Interfaces | Up to 6 I²C/Simplified I²C, 4 UART/UARTA (LIN-capable), and 5 CSI/SPI channels - configurable per pin via PIOR |
| Analog Peripherals | 10-bit ADC with 10-channel input, internal 1.48 V reference, and on-chip temperature sensor |
Pinout & Package
44-pin LQFP package (10 × 10 mm, 0.80-mm pitch), exposed pad not present, rated for -40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P12, P14–P17, P20–P23, P30–P31, P50–P51, P60–P61, P70–P73, P120–P122, P124, P137, P147, P00–P01, P40 | Digital I/O / Peripheral Multiplexing | All 44 pins support configurable digital I/O; most offer multiple peripheral functions (UART, I²C, SPI, timers, CTSU, ADC) assigned via PIOR register |
| VDD / VSS | Power Supply | Single 1.6–5.5 V supply rail; VSS serves as analog/digital ground reference for ADC and CTSU |
| RESET | System Reset Input | Active-low asynchronous reset; internally pulled up; compatible with external reset ICs or manual pushbutton |
| X1 / X2 / EXCLK / XT1 / XT2 | System Clock Inputs | Supports crystal (32.768 kHz or 1–20 MHz), external clock, or resonator; enables precise RTC and high-accuracy timing |
| TSCAP / TSxx | Capacitive Touch Sensing | TSCAP is dedicated CTSU reference capacitor pin; TSxx pins are configurable touch sensor inputs (up to 29) |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 preloaded CTSU/timer/ADC commands autonomously - eliminates wake-up latency and CPU power overhead |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining across 20 event sources - enables jitter-free, CPU-free signal routing (e.g., ADC→DMA→UART) |
| Data Flash Background Operation (BGO) | Execute code from flash while rewriting 2 KB data flash - enables seamless firmware updates and parameter logging without interruption |
| On-Chip Voltage Detectors (LVD0/LVD1) | Dual independent voltage monitors with programmable thresholds - provides robust brown-out detection and safe shutdown sequencing |
| Peripheral I/O Redirection (PIOR) | Runtime remapping of up to 12 peripheral functions to alternate pins - simplifies PCB layout and enables pin reuse across variants |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered wall-mounted thermostat with capacitive touch buttons, ambient temperature/humidity sensing, and wireless sub-GHz communication. IC Role / Device Role / Timing Role: Main system controller managing CTSU-based UI, 10-bit ADC sampling, RTC-driven scheduling, and UART-to-RF module bridging. Use Value: 200 nA STOP current extends 2xAA battery life beyond 5 years; CTSU2La eliminates mechanical switches and reduces BOM cost by $0.15/unit. |
Use Scenario: DIN-rail mounted environmental monitor collecting vibration, temperature, and humidity data at 1 Hz intervals for predictive maintenance. IC Role / Device Role / Timing Role: Low-power data acquisition hub using RTC alarm wakeup, 10-bit ADC with internal reference, and UART/I²C to connect MEMS sensors and RS-485 transceiver. Use Value: SNOOZE mode sequencer performs periodic ADC reads and timestamping without CPU wake-up - cuts average current to 1.2 µA during idle cycles. |
| Home Appliance Control Panel | Medical Patient Monitor Front-End |
|
Use Scenario: Microwave oven control panel with 12-key capacitive overlay, buzzer feedback, and safety interlock monitoring. IC Role / Device Role / Timing Role: Dedicated HMI processor handling CTSU scanning, PCLBUZ-driven audio alerts, GPIO-based door switch supervision, and LIN bus communication to main MCU. Use Value: Integrated LIN-capable UARTA enables direct connection to appliance main controller; 32 KB flash accommodates full touch debounce and safety-certified firmware. |
Use Scenario: Portable pulse oximeter requiring clinical-grade touch response, low-noise analog front-end, and USB CDC virtual COM interface. IC Role / Device Role / Timing Role: Signal conditioning and UI controller performing synchronized ADC sampling of photodiode signals, CTSU-based button detection, and USB-emulated UART via external transceiver. Use Value: On-chip 1.48 V reference ensures ±0.5% ADC accuracy over temperature; 37.5 µA/MHz efficiency allows continuous operation on coin-cell for >72 hours. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GFE2DFP#AA0 | 64 KB code flash, same 44-pin LQFP package, identical peripherals and pinout | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed | Select R7F102GFE2DFP#AA0 only if additional flash capacity is confirmed necessary; otherwise R7F102GFC2DFP#AA0 offers optimal cost/performance balance. |
| STM32G031F8P6 | ARM Cortex-M0+, 64 KB flash, 8 KB RAM, 20-pin TSSOP - smaller package, no integrated CTSU, different toolchain | Suitable for simpler non-touch applications where ST's ecosystem and lower unit cost outweigh Renesas-specific features | Choose STM32G031F8P6 only for cost-sensitive, non-capacitive-touch designs with existing ARM toolchain investment; not a functional substitute for CTSU-dependent use cases. |
Compared with R7F102GFE2DFP#AA0, the R7F102GFC2DFP#AA0 saves $0.32/unit with identical footprint and peripheral set; versus STM32G031F8P6, it delivers integrated touch sensing and lower active current but requires Renesas CS+ or e2 studio toolchain adoption.
Availability
R7F102GFC2DFP#AA0 is available at Aetrix Electronics and suitable for smart home controls, industrial sensor nodes, and medical device front-ends requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R7F102GFC2DFP#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 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated human-machine interface and sensor-edge applications with integrated capacitive touch and precision timing.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102GFC2DFP#AA0?
The R7F102GFC2DFP#AA0 supports up to 32 MHz operation using the high-speed on-chip oscillator, with guaranteed functionality across its full 1.6 V to 5.5 V VDD range. At 32 MHz, minimum instruction execution time is 0.03125 µs; voltage detectors (LVD0/LVD1) ensure reliable operation under varying supply conditions.
Does the R7F102GFC2DFP#AA0 include hardware support for capacitive touch sensing, and how many keys can it manage?
Yes, the R7F102GFC2DFP#AA0 integrates the CTSU2La capacitive touch sensing unit capable of supporting up to 29 keys using either self-capacitance (single-pin per key) or mutual-capacitance (matrix configuration) methods. No external RC networks or dedicated touch controller ICs are required.
What debug interfaces are supported by the R7F102GFC2DFP#AA0, and what pins are used?
The R7F102GFC2DFP#AA0 supports on-chip debugging via the single-wire debug interface using P11 (TOOLRxD) and P12 (TOOLTxD) pins in conjunction with the RESET pin. These pins also serve dual roles as UARTA0 channel for serial communication, enabling shared debug and host interface functionality.
Can the R7F102GFC2DFP#AA0 operate from a 3.3 V supply while maintaining full peripheral functionality including ADC and CTSU?
Yes, the R7F102GFC2DFP#AA0 operates fully across 1.6 V to 5.5 V, including 3.3 V nominal supply. At 3.3 V, the 10-bit ADC maintains ±1 LSB INL/DNL performance with internal 1.48 V reference, and CTSU2La achieves >100:1 signal-to-noise ratio for robust touch detection in noisy environments.
Is there hardware support for background data flash rewriting while executing application code from program flash on the R7F102GFC2DFP#AA0?
Yes, the R7F102GFC2DFP#AA0 implements Background Operation (BGO) for its 2 KB data flash memory. This allows the CPU to execute instructions from program flash while simultaneously erasing or programming data flash sectors - essential for runtime parameter storage and firmware field updates without system interruption.
R7F102GFC2DFP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 37
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GFC2DFP#AA0 FAQ
1.How can I place an order for R7F102GFC2DFP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GFC2DFP#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 R7F102GFC2DFP#AA0 reliable?
The price and inventory of R7F102GFC2DFP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GFC2DFP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GFC2DFP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GFC2DFP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GFC2DFP#AA0?
R7F102GFC2DFP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GFC2DFP#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 R7F102GFC2DFP#AA0?
For technical support, including R7F102GFC2DFP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GFC2DFP#AA0 requirements.
6.How does Aetrix verify that R7F102GFC2DFP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GFC2DFP#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 R7F102GFC2DFP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GFC2DFP#AA0?
All R7F102GFC2DFP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GFC2DFP#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 R7F102GFC2DFP#AA0 part is unused and in its original packaging.
Return procedure for R7F102GFC2DFP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GFC2DFP#AA0 Tags
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