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Renesas R7F102GGE3CFB#AA0
- Part No.:
- R7F102GGE3CFB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7F102GGE3CFB#AA0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,241
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Product details
Overview
R7F102GGE3CFB#AA0 from Renesas is a 48-pin LFQFP, 32-bit RL78/G22 microcontroller with 64 KB code flash, 4 KB RAM, and 2 KB data flash, operating from 1.6 V to 5.5 V. It delivers ultra-low power consumption (37.5 µA/MHz active, 200 nA STOP mode), integrates 10-channel 10-bit ADC, RTC, up to 29 capacitive touch sensors, and supports UART, I²C, and SPI interfaces for embedded control in battery-powered industrial HMI.
For engineers reviewing the R7F102GGE3CFB#AA0 datasheet, R7F102GGE3CFB#AA0 pinout, R7F102GGE3CFB#AA0 application, or R7F102GGE3CFB#AA0 equivalent, this page provides verified package mapping (LFQFP-48, 7×7 mm, 0.50-mm pitch), confirmed 48-pin terminal functions, real-world timing and sensing capabilities, and two validated alternative parts for design flexibility.
Technical Context
The R7F102GGE3CFB#AA0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.03125 µs at 32 MHz high-speed mode or 30.5 µs at 32.768 kHz ultra-low-speed mode). It includes dedicated hardware accelerators for capacitive touch (CTSU2La), SNOOZE mode sequencer (SMS) for autonomous low-power sensor polling, and event link controller (ELC) enabling direct peripheral-to-peripheral signal routing without CPU intervention.
Its memory subsystem comprises 64 KB on-chip code flash (2 KB block size, flash shield window, boot swapping), 2 KB data flash supporting background operation (BGO) and 1M write cycles, and 4 KB SRAM. Power management includes dual voltage detectors (LVD0/LVD1), POR, HALT/STOP/SNOOZE modes, and a high-accuracy ±1.0% on-chip oscillator (32 MHz max).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and variable instruction timing |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode - extends battery life in portable devices |
| Memory | 64 KB code flash (2 KB blocks), 2 KB data flash (BGO enabled), 4 KB RAM - supports firmware updates and data logging without halting execution |
| Capacitive Touch | Up to 29 keys via self- or mutual-capacitance methods - eliminates external touch controller in HMI designs |
| Timers & RTC | Eight 16-bit TAU channels, 32-bit interval timer, and calendar-mode RTC (1 sec–99 years) with alarm and correction - enables precise timekeeping and periodic wake-up |
| ADC | 10-bit resolution, 10 analog inputs, internal 1.48 V reference and temperature sensor - enables accurate sensor signal acquisition without external references |
Pinout & Package
Package: LFQFP-48, 7 mm × 7 mm, 0.50-mm pitch, exposed die pad (PLQP0048KB-B / PLQP0048KL-A). Pin count and function mapping match Renesas' official ordering part number definition for R7F102GGE3CFB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pins 1, 24, 48) | Core power supply | Accepts 1.6–5.5 V; multiple pins reduce IR drop and improve noise immunity in high-frequency operation |
| VSS (Pins 2, 25, 47) | Digital ground | Multiple ground pins provide low-impedance return paths and minimize ground bounce across I/O banks |
| RESET (Pin 3) | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external RC or supervisor IC reset signals |
| X1/X2 (Pins 4, 5) | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC or high-frequency crystals up to 20 MHz for main clock |
| P10–P12 (Pins 6–8) | SPI/I²C/UART multiplexed I/O | Configurable as SCK00/SCL00/TS11, SI00/RxD0/SDA00/TS12, SO00/TxD0/TOOLTxD/TS13 - enables shared bus routing |
| P30 (Pin 9) | TSCAP/RTC1HZ/INTP3 | Capacitive touch reference capacitor connection point; also outputs 1 Hz RTC signal and serves as interrupt source |
| P50/P51 (Pins 10, 11) | TS00/INTP1/SI11/SDA11, TS28/INTP2/SO11 | Dual-purpose pins for capacitive touch sensing and serial communication - reduces pin count in compact HMI designs |
| P147 (Pin 46) | ANI18/TS10 | Analog input channel 18 and capacitive touch electrode - supports multi-electrode touchpad or slider implementation |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 sequential touch or sensor measurements autonomously - eliminates CPU wake-ups and cuts average current by >90% during idle sensing |
| Capacitive Sensing Unit (CTSU2La) | Self- and mutual-capacitance support with hardware-based noise cancellation - achieves robust touch detection in noisy industrial environments |
| Event Link Controller (ELC) | Routes 20 peripheral events (e.g., ADC end-of-conversion → DMA trigger) without CPU involvement - reduces latency and firmware overhead |
| Data Flash Background Operation (BGO) | Allows full CPU execution from code flash while rewriting data flash - enables seamless over-the-air updates and real-time logging |
| On-chip High-Accuracy Oscillator | ±1.0% accuracy from 1.8–5.5 V and –20 to +85°C - removes need for external crystal in cost-sensitive applications |
Applications
| Industrial HMI Panel | Smart Thermostat Controller |
|---|---|
|
Use Scenario: A wall-mounted HVAC interface with 12-button capacitive keypad, LCD backlight control, and temperature/humidity sensor readout. IC Role / Device Role / Timing Role: Main system controller executing UI logic, capacitive touch scanning, sensor ADC acquisition, and UART communication to HVAC mainboard. Use Value: Integrated CTSU2La and 10-bit ADC eliminate external touch and signal-conditioning ICs; 200 nA STOP mode extends battery backup runtime to >5 years. |
Use Scenario: Battery-powered programmable thermostat with ambient temperature sensing, schedule-based setpoint control, and BLE module interface. IC Role / Device Role / Timing Role: Primary MCU managing RTC calendar, low-power sleep/wake cycles, capacitive button wake-up, and SPI communication to BLE SoC. Use Value: SNOOZE mode sequencer autonomously polls touch buttons and temperature sensor every 2 seconds - CPU remains in STOP mode >99.8% of time. |
| Programmable Logic Relay | Asset Tracking Beacon |
|
Use Scenario: DIN-rail mounted relay module with 4 digital inputs, 2 relay outputs, RS-485 Modbus interface, and local pushbutton configuration. IC Role / Device Role / Timing Role: System-on-chip controller handling Modbus RTU parsing, input debouncing, output timing, and capacitive configuration buttons. Use Value: Dual LVDs enable brown-out detection at 2.7 V and 4.2 V thresholds; integrated UART with LIN support simplifies RS-485 transceiver integration. |
Use Scenario: Small-form-factor logistics tag with motion detection (accelerometer), temperature logging, and periodic GPS fix reporting via cellular modem. IC Role / Device Role / Timing Role: Low-power host MCU managing accelerometer interrupt wake-up, 10-bit temperature ADC sampling, and UART command framing to modem. Use Value: 64 KB flash accommodates bootloader, Modem AT parser, and firmware update handler; 2 KB data flash stores 10,000+ timestamped sensor records with BGO. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GGC3CFB#AA0 | Same package and pinout, but 32 KB code flash and identical 2 KB data flash/4 KB RAM | Suitable where firmware size < 30 KB and cost sensitivity outweighs future upgrade headroom | Select when BOM cost reduction is prioritized and flash usage is confirmed ≤30 KB |
| R7F102GFE3CFP#AA0 | LQFP-44 (7×7 mm, 0.80-mm pitch), 64 KB flash, but only 40 I/O pins and no P7x KRx touch channels | Fits space-constrained PCBs requiring fewer GPIOs and no extended key scan capability | Choose for legacy LQFP-44 footprint compatibility and reduced I/O count requirements |
Compared with R7F102GGE3CFB#AA0, R7F102GGC3CFB#AA0 trades flash capacity for lower unit cost without altering pinout or peripheral set, while R7F102GFE3CFP#AA0 offers identical flash but sacrifices 8 pins and touch channel flexibility for a larger-pitch, more manufacturable package.
Availability
R7F102GGE3CFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, programmable logic relays, and asset tracking beacons requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.
Supply support for R7F102GGE3CFB#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, and power management solutions for industrial, automotive, and IoT markets.
The RL78/G22 product line targets cost-sensitive, ultra-low-power embedded applications requiring integrated capacitive touch, rich analog peripherals, and secure firmware update capability - optimized for battery-operated and energy-harvesting systems.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102GGE3CFB#AA0?
The R7F102GGE3CFB#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 supply range. At 32 MHz, minimum instruction execution time is 0.03125 µs; the device also supports ultra-low-speed operation at 32.768 kHz with 30.5 µs per instruction for ultra-low-power RTC and sensor polling tasks.
Does the R7F102GGE3CFB#AA0 support hardware-accelerated capacitive touch sensing, and how many electrodes can it manage?
Yes, the R7F102GGE3CFB#AA0 integrates the CTSU2La capacitive sensing unit supporting up to 29 electrodes. It implements both self-capacitance (single-pin per key) and mutual-capacitance (transmit/receive pin pairs) methods, with built-in noise cancellation and automatic calibration - eliminating need for external touch controller ICs in HMI designs.
What are the flash memory organization and security features of the R7F102GGE3CFB#AA0?
The R7F102GGE3CFB#AA0 contains 64 KB of code flash organized in 2 KB blocks, with flash shield window protection to prevent unauthorized readout, and block-level erase/write prohibition. It supports self-programming with boot swapping and on-chip debugging - enabling secure field firmware updates and robust bootloader implementations.
Can the R7F102GGE3CFB#AA0 operate in ultra-low-power STOP mode while maintaining RTC functionality and wake-up capability?
Yes, the R7F102GGE3CFB#AA0 achieves 200 nA STOP mode current while retaining RTC operation, alarm interrupt generation, and wake-up via external interrupts (e.g., INTP0–INTP5), key interrupt inputs, or RTC alarm. The low-speed on-chip oscillator (32.768 kHz) continues running to sustain RTC accuracy during STOP mode.
What communication interfaces are available on the R7F102GGE3CFB#AA0, and which pins support hardware UART with LIN bus compliance?
The R7F102GGE3CFB#AA0 provides up to 4 UARTA channels, 6 I²C/Simplified I²C channels, and 5 CSI (SPI-compatible) channels. UARTA channels support LIN bus physical layer compliance (ISO 17987) with break-detection and sync-field handling; UARTA0 is available on pins P11 (RxD0) and P12 (TxD0), matching the R7F102GGE3CFB#AA0's LFQFP-48 pinout.
R7F102GGE3CFB#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:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GGE3CFB#AA0 FAQ
1.How can I place an order for R7F102GGE3CFB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GGE3CFB#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 R7F102GGE3CFB#AA0 reliable?
The price and inventory of R7F102GGE3CFB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GGE3CFB#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GGE3CFB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GGE3CFB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GGE3CFB#AA0?
R7F102GGE3CFB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GGE3CFB#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 R7F102GGE3CFB#AA0?
For technical support, including R7F102GGE3CFB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GGE3CFB#AA0 requirements.
6.How does Aetrix verify that R7F102GGE3CFB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GGE3CFB#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 R7F102GGE3CFB#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GGE3CFB#AA0?
All R7F102GGE3CFB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GGE3CFB#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 R7F102GGE3CFB#AA0 part is unused and in its original packaging.
Return procedure for R7F102GGE3CFB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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