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Renesas R7F102GFE2DFP#AA0
- Part No.:
- R7F102GFE2DFP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R7F102GFE2DFP#AA0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,120
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Product details
Overview
R7F102GFE2DFP#AA0 from Renesas is a 44-pin LQFP-44, 64-KB flash, 4-KB RAM RL78/G22 16-bit microcontroller operating from 1.6 to 5.5 V, featuring 37.5 µA/MHz active current, 200 nA STOP mode, 10-channel 10-bit ADC, and up to 29 capacitive touch sensing channels - deployed in battery-powered industrial HMI and smart sensor nodes.
For engineers reviewing the R7F102GFE2DFP#AA0 datasheet, R7F102GFE2DFP#AA0 pinout, R7F102GFE2DFP#AA0 application, or R7F102GFE2DFP#AA0 equivalent, key selection criteria include its 44-pin LQFP package with 32 I/Os, integrated CTSU2La capacitive touch unit, RTC with alarm, and dual UART/LIN support for low-power wired communication interfaces.
Technical Context
The R7F102GFE2DFP#AA0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), and includes a SNOOZE mode sequencer enabling CPU-free periodic sensor polling using 32 configurable commands.
It integrates an Event Link Controller (ELC) routing 20 event signals between peripherals, a Data Transfer Controller (DTC) with chain transfer capability, and a 32-bit interval timer with flexible counter modes - all optimized for deterministic low-power peripheral coordination without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and variable-speed clock scaling |
| Flash / RAM | 64 KB code flash + 2 KB data flash + 4 KB SRAM - supports background rewriting and boot swapping |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V logic and single-supply battery operation |
| Low-Power Modes | STOP mode (200 nA), HALT mode, and SNOOZE mode - permits ultra-low-power wake-up triggered by CTSU, RTC, or external interrupt |
| ADC | 10-bit resolution, 10 analog inputs, internal 1.48 V reference and temperature sensor - eliminates need for external references in thermal monitoring |
| Capacitive Sensing | CTSU2La unit supporting up to 29 self-capacitance keys or matrix mutual-capacitance - operates across full VDD range without external components |
| Timers | Eight 16-bit TAU channels, one 32-bit interval timer, RTC with calendar and alarm - enables precise timekeeping and multi-rate PWM generation |
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 | SCK00/SCL00/TS11 | Shared SPI clock / I²C clock / touch sense input - enables hardware reuse for serial comms and HMI sensing on same pin |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | Multi-function pin supporting SPI input, UART receive, debug RX, I²C data, and touch sense - simplifies board routing in space-constrained designs |
| P12 | SO00/TxD0/TOOLTxD/TS13 | SPI output / UART transmit / debug TX / touch sense - allows firmware-controlled switching between comms and sensing roles |
| P13–P15 | TxD2/RxD2/SCK20/SCL20/TS14–TS16 | Dedicated UART2 and I²C2 pins with touch sense overlay - isolates secondary comms channel from primary interface |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | Interrupt input / touch sensor reference capacitor / RTC 1-Hz output / I²C clock / SPI clock - consolidates timing, sensing, and comms functions |
| P50–P51 | TS00/INTP1/SI11/SDA11 & TS28/INTP2/SO11 | Touch sense + UART1/SPI1/I²C1 I/O - provides dedicated high-noise-immunity paths for critical comms and sensing |
| P60–P61 | SCLA0/SDAA0 | Dedicated I²C bus A clock/data - ensures robust two-wire interface for EEPROM or sensor hub without multiplexing conflict |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply with decoupling via REGC capacitor - reduces BOM count and layout complexity vs. dual-rail MCUs |
Key Features
| Feature | Design Value |
|---|---|
| True low-power architecture | 37.5 µA/MHz active current and 200 nA STOP mode enable >10-year battery life in coin-cell-powered devices |
| SNOOZE mode sequencer | Executes up to 32 preconfigured operations (e.g., ADC sampling, CTSU scan, register compare) autonomously - eliminates CPU wake-ups for periodic tasks |
| Integrated capacitive touch unit (CTSU2La) | Supports 29 self-capacitance keys or matrix configurations with auto-tuning - removes need for external touch controller IC and calibration firmware |
| Event Link Controller (ELC) | Direct hardware linking of 20 peripheral events (e.g., ADC end → DMA trigger → UART TX start) - guarantees sub-microsecond latency without CPU scheduling |
| Data Flash with BGO | 2 KB data flash supports background rewriting while executing from main flash - enables seamless firmware parameter updates during runtime |
| Multiple clock sources | High-speed (±1.0% @ 32 MHz), middle-speed, and 32.768 kHz low-speed oscillators - provides precision timing for RTC, comms, and low-power sleep simultaneously |
Applications
| Industrial HMI Panel | Smart Thermostat |
|---|---|
|
Use Scenario: Wall-mounted HVAC control panel with 12-button capacitive keypad, LCD backlight dimming, and RS-485 Modbus communication. IC Role / Device Role / Timing Role: Main system controller managing touch input scanning, temperature ADC acquisition, real-time clock-based scheduling, and UART-to-RS485 protocol translation. Use Value: Integrated CTSU2La eliminates external touch ASIC; RTC with alarm enables precise heating/cooling cycle timing; dual UARTs support local UI and fieldbus simultaneously. |
Use Scenario: Battery-powered programmable thermostat with ambient/pipe temperature sensing, humidity compensation, and BLE gateway interface. IC Role / Device Role / Timing Role: Primary MCU handling 10-bit ADC reads from thermistors and HTS221, CTSU-based button navigation, and low-power BLE coexistence via UART. Use Value: 200 nA STOP mode extends CR2032 battery life beyond 5 years; internal 1.48 V reference ensures stable ADC accuracy across voltage drop; SNOOZE mode scans sensors every 30 s without waking CPU. |
| Programmable Logic Controller (PLC) I/O Module | Asset Tracking Beacon |
|
Use Scenario: DIN-rail mounted digital input/output expansion module with 8 isolated inputs, 4 relay outputs, and CAN bus connectivity. IC Role / Device Role / Timing Role: Local intelligence node performing opto-isolator status polling, relay timing control, and CAN message framing with error detection. Use Value: ELC links GPIO change interrupts directly to CAN TX request - ensures deterministic response under 10 µs; 64 KB flash accommodates field-upgradable safety firmware. |
Use Scenario: GPS-denied indoor asset tag using accelerometer motion detection, BLE advertising, and NFC configuration interface. IC Role / Device Role / Timing Role: System-on-chip managing 3-axis accelerometer I²C reads, NFC field detection, BLE advertisement burst scheduling, and low-power sleep cycling. Use Value: CTSU2La repurposed as NFC field detector; RTC alarm wakes MCU every 2 s to check motion threshold; 4-KB RAM buffers accelerometer FIFO before BLE transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GFC2DFP | 32 KB flash, same 44-pin LQFP package, identical peripheral set and pinout | Lower memory footprint suits simpler firmware with no OTA update or complex UI requirements | Select when application code size remains under 28 KB and cost sensitivity outweighs future firmware scalability needs |
| STM32L072KBU6 | ARM Cortex-M0+, 128 KB flash, 20 KB RAM, different pinout and peripheral mapping (no CTSU, no SNOOZE sequencer) | Requires external touch controller and custom low-power state machine for equivalent autonomous sensing | Choose only if ARM ecosystem toolchain compatibility or higher compute throughput justifies added BOM and firmware development effort |
Compared with R7F102GFC2DFP, the R7F102GFE2DFP#AA0 provides 32 KB additional flash for secure bootloader, field-upgradeable parameters, and future feature expansion; versus STM32L072KBU6, it delivers native capacitive touch and autonomous SNOOZE sequencing - reducing firmware complexity and external component count in HMI-critical designs.
Availability
R7F102GFE2DFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, PLC I/O modules, and asset tracking beacons requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R7F102GFE2DFP#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 management, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G22 product line targets cost-sensitive, ultra-low-power embedded systems requiring integrated capacitive touch, rich analog peripherals, and deterministic real-time operation - designed specifically for battery-powered industrial controls and smart home endpoints.
FAQ
What is the maximum operating frequency and associated current consumption of the R7F102GFE2DFP#AA0?
The R7F102GFE2DFP#AA0 operates at up to 32 MHz using its high-speed on-chip oscillator with ±1.0% accuracy, achieving 37.5 µA/MHz typical active current. At full speed, this equates to approximately 1.2 mA total supply current - verified per R01DS0424EJ0120 Rev.1.20 Section 1.1.
Does the R7F102GFE2DFP#AA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7F102GFE2DFP#AA0 integrates the CTSU2La capacitive touch sensing unit supporting up to 29 self-capacitance keys or matrix configurations. It operates across the full 1.8–5.5 V VDD range without external components and includes auto-tuning algorithms - confirmed in Section 1.1 and Table 1-1 of the datasheet.
What package type and pin count does the R7F102GFE2DFP#AA0 use?
The R7F102GFE2DFP#AA0 uses a 44-pin LQFP package (10 × 10 mm, 0.80-mm pitch), designated by the "FP" suffix and "F" pin-count code in its part number. This matches the RL78/G22 family's 44-pin variant with full peripheral access and industrial temperature rating - per Table 1-1 and Figure 1-1 in R01DS0424EJ0120.
Can the R7F102GFE2DFP#AA0 operate from a single 3.3 V supply, and what are its voltage limits?
Yes, the R7F102GFE2DFP#AA0 operates from a single supply ranging from 1.6 V to 5.5 V, fully supporting standard 3.3 V systems. Its wide VDD range allows direct interfacing with 1.8 V, 2.5 V, and 3.3 V logic families without level shifters - specified in Section 1.1 "Ultra-low power consumption technology" of R01DS0424EJ0120.
What low-power modes are available on the R7F102GFE2DFP#AA0, and what is the lowest quiescent current?
The R7F102GFE2DFP#AA0 supports HALT, STOP, and SNOOZE modes. In STOP mode with RTC enabled, it achieves 200 nA typical current consumption at VDD = 3.0 V and TA = 25°C - documented in Section 1.1 and electrical characteristics tables of R01DS0424EJ0120 Rev.1.20.
R7F102GFE2DFP#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:
- 64KB (64K 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:
R7F102GFE2DFP#AA0 FAQ
1.How can I place an order for R7F102GFE2DFP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GFE2DFP#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 R7F102GFE2DFP#AA0 reliable?
The price and inventory of R7F102GFE2DFP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GFE2DFP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GFE2DFP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GFE2DFP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GFE2DFP#AA0?
R7F102GFE2DFP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GFE2DFP#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 R7F102GFE2DFP#AA0?
For technical support, including R7F102GFE2DFP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GFE2DFP#AA0 requirements.
6.How does Aetrix verify that R7F102GFE2DFP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GFE2DFP#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 R7F102GFE2DFP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GFE2DFP#AA0?
All R7F102GFE2DFP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GFE2DFP#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 R7F102GFE2DFP#AA0 part is unused and in its original packaging.
Return procedure for R7F102GFE2DFP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GFE2DFP#AA0 Tags
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