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Renesas R7F102G4C2DNP#AA0
- Part No.:
- R7F102G4C2DNP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R7F102G4C2DNP#AA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:4,694
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Product details
Overview
R7F102G4C2DNP#AA0 from Renesas is a 16-pin HWQFN-packaged RL78/G22 16-bit microcontroller with 32 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, capacitive touch sensing (up to 29 keys), and supports UART, I²C, and simplified SPI for battery-powered consumer HMI applications.
For engineers reviewing the R7F102G4C2DNP#AA0 datasheet, R7F102G4C2DNP#AA0 pinout, R7F102G4C2DNP#AA0 application, or R7F102G4C2DNP#AA0 equivalent, key selection criteria include its 16-pin HWQFN (3 × 3 mm, 0.50-mm pitch) footprint, -40 to +85°C consumer-grade temperature range, 32 KB flash capacity, CTSU2La capacitive touch unit, and support for SNOOZE mode sequencer for autonomous low-power sensor polling.
Technical Context
The R7F102G4C2DNP#AA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction execution time from 0.03125 µs (32 MHz high-speed on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). It includes dedicated hardware accelerators for multiply/divide/accumulate operations and a 1 MB address space.
Its peripheral set centers on ultra-low-power operation: SNOOZE mode sequencer executes up to 32 pre-programmed commands without CPU, RAM, or flash activation; Event Link Controller (ELC) enables direct peripheral-to-peripheral event triggering; and Data Transfer Controller (DTC) supports chain transfer across multiple sources without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Flash Memory | 32 KB code flash + 2 KB data flash with background rewrite and 1M-cycle endurance |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode - extends battery life in portable devices |
| Capacitive Touch | CTSU2La unit supporting up to 29 self-capacitance keys or matrix mutual-capacitance configurations |
| Timers & RTC | Eight 16-bit TAU channels; one 32-bit interval timer; RTC with alarm, calendar (1 sec–99 years), and correction |
| ADC | 10-bit resolution, 10 analog inputs, internal 1.48 V reference, and integrated temperature sensor |
Pinout & Package
Package: HWQFN-16 (3 × 3 mm, 0.50-mm pitch), exposed die pad, consumer-grade (-40 to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P122 / X2 / XT2 / EXCLK / EXCLKS | Crystal oscillator input | Supports external 32.768 kHz crystal for RTC or high-frequency crystal up to 20 MHz |
| P121 / X1 / XT1 | Crystal oscillator output | Completes crystal oscillator circuit; required for precision timing and low-jitter clock generation |
| REGC | Regulator bypass capacitor terminal | Must connect 0.47–1 µF capacitor to VSS for internal LDO stability and noise suppression |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V supply; VSS serves as analog/digital ground reference for ADC and CTSU |
| P30 / TSCAP / RTC1HZ / SCL11 | Touch sense capacitor / RTC output / I²C clock | Dedicated pin for CTSU reference capacitor; also outputs 1 Hz RTC signal and functions as I²C clock |
| P10–P12 / SCK00 / SI00 / SO00 / TS11–TS13 | SPI/I²C/Touch interface | Shared pins enable simplified SPI (3-wire) or I²C communication while simultaneously supporting capacitive touch sensing |
| P20–P22 / ANI0–ANI2 / AVREFP / AVREFM | Analog inputs with reference | Three independent ADC channels with selectable internal 1.48 V reference or external AVREFP/AVREFM |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 CTSU/ADC/RTC/Timer operations autonomously-no CPU wake-up, no flash/RAM access, sub-µA average current |
| Capacitive Touch Unit (CTSU2La) | Hardware-accelerated self/mutual capacitance sensing with built-in noise cancellation-enables robust touch buttons/sliders without firmware overhead |
| Event Link Controller (ELC) | Direct hardware linking of 20 peripheral events (e.g., ADC end → DMA trigger → GPIO toggle)-eliminates interrupt latency and CPU load |
| Background Data Flash Rewrite | Execute code from main flash while rewriting data flash-enables field firmware updates and parameter storage without system stall |
| Multi-Speed On-Chip Oscillators | High-speed (1–32 MHz ±1.0%), middle-speed (1–4 MHz adjustable), and low-speed (32.768 kHz adjustable) oscillators-no external crystals needed for most functions |
Applications
| Smart Home Remote Control | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered infrared/RF remote with touch-sensitive UI and real-time battery voltage monitoring. IC Role / Device Role / Timing Role: Main controller managing capacitive touch keys, IR modulation, low-power RTC wake-up, and 10-bit ADC-based battery gauge. Use Value: 200 nA STOP mode extends coin-cell life beyond 2 years; CTSU2La ensures reliable touch detection under varying humidity and glove use. |
Use Scenario: Handheld pulse oximeter with OLED display, optical sensor interface, and USB charging status indication. IC Role / Device Role / Timing Role: System-on-chip handling LED driver control, photodiode signal acquisition via ADC, and real-time SpO₂ calculation timing. Use Value: Integrated 1.48 V ADC reference eliminates external voltage reference IC; SNOOZE mode sequences optical sampling and processing without CPU involvement. |
| Wireless Sensor Node | Appliance Control Panel |
|
Use Scenario: BLE-enabled environmental sensor node measuring temperature, humidity, and ambient light using discrete analog sensors. IC Role / Device Role / Timing Role: Sensor aggregator performing periodic ADC reads, CTSU-based button press detection, and BLE subsystem wake coordination. Use Value: ELC links ADC conversion completion directly to DTC-triggered BLE packet preparation-reducing active time by >40% versus interrupt-driven flow. |
Use Scenario: Microwave oven control panel with touch sliders for power/time setting and buzzer feedback. IC Role / Device Role / Timing Role: Dedicated HMI controller running CTSU for slider position, driving piezo buzzer via PCLBUZ0, and managing display backlight PWM. Use Value: Hardware PCLBUZ0 module generates precise audio tones without CPU cycles; 16-pin HWQFN minimizes PCB area for cost-sensitive white goods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G4E2DNP#AA0 | Same package and pinout; 64 KB code flash (vs. 32 KB), identical peripherals and power specs | Required where firmware size exceeds 32 KB or future-proofing for feature expansion is critical | Select when bootloader, OTA update stack, or complex UI assets demand larger flash; no PCB change needed |
| STM32L011K4T6 | ARM Cortex-M0+, 16 KB flash, 2 KB RAM, 12-bit ADC, but lacks integrated CTSU and SNOOZE sequencer | Suitable for basic sensing/control but requires external touch controller or software-based touch algorithms | Choose if ARM ecosystem toolchain preference outweighs need for hardware-accelerated touch and autonomous low-power sequencing |
Compared with R7F102G4E2DNP#AA0, the R7F102G4C2DNP#AA0 trades flash capacity for lower cost and smaller memory footprint, while versus STM32L011K4T6 it provides superior integrated HMI capability and deterministic ultra-low-power sequencing-critical for touch-centric consumer devices.
Availability
R7F102G4C2DNP#AA0 is available at Aetrix Electronics and suitable for smart home remotes, portable medical monitors, wireless sensor nodes, appliance control panels, and battery-powered HMI interfaces requiring stable component supply and long-term industrial availability.
Supply support for R7F102G4C2DNP#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 targets cost-sensitive, ultra-low-power consumer and industrial HMI applications, emphasizing integrated capacitive touch, autonomous peripheral sequencing, and single-supply operation from coin cells to 5 V rails.
FAQ
What is the maximum operating frequency and clock source flexibility of the R7F102G4C2DNP#AA0?
The R7F102G4C2DNP#AA0 supports up to 32 MHz operation using its high-speed on-chip oscillator (±1.0% accuracy), selectable from 1–32 MHz. It also integrates middle-speed (1–4 MHz, adjustable) and low-speed (32.768 kHz, adjustable) oscillators, eliminating need for external crystals in most applications. External crystals up to 20 MHz are supported via P121/P122 for RTC or precision timing.
Does the R7F102G4C2DNP#AA0 support capacitive touch sensing, and how many keys can it handle?
Yes, the R7F102G4C2DNP#AA0 integrates the CTSU2La capacitive touch sensing unit, supporting up to 29 self-capacitance keys (one pin per key) or matrix-based mutual-capacitance configurations using up to 29 pins for TX/RX. It includes hardware noise cancellation and automatic drift compensation, enabling robust touch performance in noisy environments without CPU intervention.
What are the power modes available on the R7F102G4C2DNP#AA0, and what is the lowest achievable current draw?
The R7F102G4C2DNP#AA0 offers HALT, STOP, and SNOOZE modes. STOP mode draws just 200 nA (typ.) with RTC and CTSU retention enabled. SNOOZE mode allows autonomous peripheral operation-including CTSU scanning, ADC conversions, and timer counting-without waking the CPU, achieving sub-microamp average current in sensor polling applications.
Can the R7F102G4C2DNP#AA0 perform background data flash writes while executing code from main flash memory?
Yes, the R7F102G4C2DNP#AA0 supports Background Operation (BGO) for its 2 KB data flash memory. Code execution continues uninterrupted from program flash while data flash is rewritten, enabling seamless field firmware updates, secure parameter storage, and runtime calibration data logging without system stalls or interruption of real-time tasks.
What communication interfaces are integrated into the R7F102G4C2DNP#AA0, and which pins support them?
The R7F102G4C2DNP#AA0 integrates simplified SPI (up to 5 channels), UART/UARTA (up to 4 channels, LIN-capable), and I²C/Simplified I²C (up to 6 channels). On the 16-pin HWQFN package, P10–P12 support SCK00/SI00/SO00 (SPI) and SCL00/SDA00 (I²C); P30 supports SCL11; P17 supports SDA11; and P11/P12 also serve UARTA functions (RxD0/TxD0).
R7F102G4C2DNP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-WFQFN Exposed Pad
- 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:
- LVD, POR, PWM, WDT
- Number of I/O:
- 11
- 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 3x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102G4C2DNP#AA0 FAQ
1.How can I place an order for R7F102G4C2DNP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G4C2DNP#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 R7F102G4C2DNP#AA0 reliable?
The price and inventory of R7F102G4C2DNP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G4C2DNP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102G4C2DNP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G4C2DNP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G4C2DNP#AA0?
R7F102G4C2DNP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G4C2DNP#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 R7F102G4C2DNP#AA0?
For technical support, including R7F102G4C2DNP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G4C2DNP#AA0 requirements.
6.How does Aetrix verify that R7F102G4C2DNP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G4C2DNP#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 R7F102G4C2DNP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102G4C2DNP#AA0?
All R7F102G4C2DNP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G4C2DNP#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 R7F102G4C2DNP#AA0 part is unused and in its original packaging.
Return procedure for R7F102G4C2DNP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102G4C2DNP#AA0 Tags
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