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Renesas R7F102G4C2DNP#HA0
- Part No.:
- R7F102G4C2DNP#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R7F102G4C2DNP#HA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 16HWQFN -
- Quantity:
- Payment:
- Shipping:
Inventory:4,447
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Product details
Overview
R7F102G4C2DNP#HA0 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. It operates from 1.6–5.5 V, delivers 37.5 µA/MHz active current and 200 nA STOP-mode current, and integrates capacitive touch sensing (up to 29 keys), 10-bit ADC (10 channels), and RTC - deployed in battery-powered consumer HMI systems.
For engineers reviewing the R7F102G4C2DNP#HA0 datasheet, R7F102G4C2DNP#HA0 pinout, R7F102G4C2DNP#HA0 application, or R7F102G4C2DNP#HA0 equivalent, key selection criteria include ultra-low-power operation across -40°C to +85°C, integrated CTSU2La for self/mutual-capacitance touch, and hardware-assisted SNOOZE mode for sensor polling without CPU wake-up.
Technical Context
The R7F102G4C2DNP#HA0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock). It features a dedicated SNOOZE Mode Sequencer (SMS) with 32-process capability using 21 command types, enabling autonomous low-power sensor scanning.
Peripheral integration includes 8-channel 16-bit TAU timers, 1-channel RTC with alarm and correction, UARTA/UART/LIN (1 channel), I2C/Simplified I2C (2 channels), and Simplified SPI (1 channel), all accessible via multiplexed pins on its 16-pin HWQFN (3 × 3 mm, 0.50-mm pitch) package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at ultra-low power |
| Flash / RAM | 32 KB code flash + 2 KB data flash + 4 KB RAM; supports background rewriting and boot swapping |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; enables multi-year battery life in portable devices |
| Operating Voltage | 1.6–5.5 V; allows direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters |
| Capacitive Sensing | CTSU2La unit supporting up to 29 keys via self- or mutual-capacitance; no external components required |
| Temperature Range | -40°C to +85°C; qualified for consumer-grade ambient operation per device marking "D" |
| Oscillators | High-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz); low-speed 32.768 kHz oscillator for RTC |
Pinout & Package
Package: HWQFN-16 (3 × 3 mm, 0.50-mm pitch), exposed die pad, consumer temperature grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P122 | X2/XT2/EXCLK/EXCLKS | Crystal or external clock input; supports precision timing reference or system clock source |
| P121 | X1/XT1 | Crystal or external clock input; paired with P122 for crystal oscillator configuration |
| REGC | Regulator capacitor terminal | Must connect 0.47–1 µF capacitor to VSS; stabilizes internal voltage regulator for analog/RTC stability |
| VSS | Ground | Primary digital/analog ground reference; connects to exposed die pad for thermal and noise performance |
| VDD | Power supply | Single 1.6–5.5 V supply; powers entire chip including flash, RAM, and CTSU2La |
| RESET | Reset input | Active-low reset; accepts external pull-up and debounced signal for reliable initialization |
| P137 | INTP0 | External interrupt pin; supports edge-triggered wake-up from STOP/SNOOZE modes |
| P30 | TSCAP/RTC1HZ/INTP3/SCL11 | Touch sensor reference capacitor connection; also provides RTC 1 Hz output and I2C clock |
| P17 | TS18/TI02/TO02/SDA11 | Capacitive touch input; timer input/output; I2C data line - shared function optimized for HMI resource efficiency |
| P12 | TS13/TxD0/TOOLTxD/SO00 | Touch input; UART transmit; debug serial output; SPI output - enables consolidated communication and sensing |
| P11 | TS12/RxD0/TOOLRxD/SI00/SDA00 | Touch input; UART receive; debug serial input; SPI input; I2C data - multi-function pin for compact design |
| P10 | TS11/SCK00/SCL00 | Touch input; SPI clock; I2C clock - supports dual-interface communication with single pin |
| P22 | ANI2/TS20 | Analog input channel 2; capacitive touch input - enables mixed-signal HMI with shared pin resources |
| P21 | ANI1/AVREFM | Analog input channel 1; ADC negative reference - supports ratiometric measurements with internal reference |
| P20 | ANI0/AVREFP | Analog input channel 0; ADC positive reference - allows flexible AVDD or internal 1.48 V reference selection |
| P40 | TOOL0 | On-chip debugging interface pin; used for programming and real-time trace during development |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 sequential touch-sensing or timer-based operations autonomously - eliminates CPU wake-ups and reduces average current by >90% in polling scenarios |
| CTSU2La Capacitive Sensing Unit | Supports both self-capacitance (single-key) and mutual-capacitance (matrix) configurations with built-in noise rejection - enables robust touch buttons/sliders without external ICs or firmware compensation |
| Data Flash with BGO | 2 KB data flash supports Background Operation (BGO); allows program execution from code flash while logging sensor data or updating parameters - critical for fail-safe firmware updates |
| Multi-Speed On-Chip Oscillators | Independent high-speed (1–32 MHz, ±1%), middle-speed (1–4 MHz), and low-speed (32.768 kHz) oscillators - enables dynamic clock gating and precise RTC timing without external crystals |
| Flexible Power Modes | HALT, STOP, and SNOOZE modes with sub-µA wake-up latency; STOP mode retains RAM and register state - ideal for intermittent-sensing applications like remote controls |
| Peripheral I/O Redirection | PIOR register enables functional remapping of select peripheral signals (e.g., UART, I2C) to alternate pins - increases PCB layout flexibility and reduces routing congestion |
Applications
| Smart Remote Control | Portable Thermostat Interface |
|---|---|
Use Scenario: Battery-powered infrared remote with touch-sensitive buttons and ambient temperature readout. IC Role / Device Role / Timing Role: Main controller executing touch scan via CTSU2La, reading onboard temperature sensor and ADC, driving IR LED via timer PWM, and managing low-power STOP/SNOOZE cycles. Use Value: 200 nA STOP current extends coin-cell battery life beyond 2 years; integrated RTC enables scheduled wake-up for periodic status checks. |
Use Scenario: Compact wall-mounted thermostat with capacitive slider for setpoint adjustment and LCD backlight control. IC Role / Device Role / Timing Role: HMI processor handling mutual-capacitance slider input, 10-bit ADC sampling thermistor, driving segment LCD via SAU, and managing real-time scheduling via RTC. Use Value: CTSU2La's noise-immune mutual-capacitance mode ensures reliable slider operation near AC mains; 37.5 µA/MHz active current minimizes self-heating impact on temperature measurement. |
| Wireless Sensor Node Endpoint | USB-C Powered Consumer Gadget |
Use Scenario: BLE-connected environmental sensor node measuring temperature/humidity with wake-on-event capability. IC Role / Device Role / Timing Role: Sensor aggregator acquiring ADC data, timestamping with RTC, triggering BLE MCU via GPIO, and entering STOP mode between readings. Use Value: SMS-driven autonomous sensor polling avoids CPU involvement; 2 KB data flash stores calibration coefficients and event logs with BGO support. |
Use Scenario: USB-C powered smart desk accessory (e.g., RGB light bar) requiring touch control, LED dimming, and USB enumeration support. IC Role / Device Role / Timing Role: System manager interfacing with USB PD controller via UART/I2C, scanning capacitive keys, generating PWM for LEDs via TAU, and monitoring VBUS via ADC. Use Value: 1.6–5.5 V operating range matches USB-C VBUS tolerance; integrated 1.48 V internal reference enables stable ADC readings independent of supply ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G4E2DNP#HA0 | Same package and pinout; 64 KB code flash + 2 KB data flash + 4 KB RAM vs. 32 KB flash in R7F102G4C2DNP#HA0 | Required where firmware complexity exceeds 32 KB or field-upgradeable feature sets demand larger code space | Select when future firmware expansion or bootloader+application partitioning is needed; otherwise R7F102G4C2DNP#HA0 offers optimal cost/power balance |
| R7F102G6C2DSP#HA0 | 20-pin LSSOP package (4.4 × 6.5 mm); identical memory (32 KB/4 KB/2 KB), same -40°C to +85°C rating, but adds 2 extra ADC channels and 2 more touch inputs | Suitable for designs needing additional analog sensing or expanded HMI without changing firmware logic | Choose when board layout allows larger footprint and additional ANI/TS pins improve system integration - no software porting required |
Compared with R7F102G4E2DNP#HA0 and R7F102G6C2DSP#HA0, the R7F102G4C2DNP#HA0 provides the smallest footprint and lowest gate count for cost-sensitive, space-constrained consumer HMI - trading flash capacity and pin count for minimal size and power, making it optimal for ultra-compact remotes and wearables.
Availability
R7F102G4C2DNP#HA0 is available at Aetrix Electronics and suitable for smart remote controls, portable thermostats, wireless sensor endpoints, and USB-C powered consumer gadgets requiring stable component supply, long-lifecycle assurance, and consistent parametric performance.
Supply support for R7F102G4C2DNP#HA0 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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications, with over 40 years of microcontroller innovation.
The RL78/G22 product line targets ultra-low-power consumer and industrial HMI applications, emphasizing integrated capacitive touch, autonomous peripheral sequencing, and energy-efficient operation across wide voltage and temperature ranges.
FAQ
What is the maximum operating frequency and associated current consumption of the R7F102G4C2DNP#HA0?
The R7F102G4C2DNP#HA0 supports up to 32 MHz operation using its high-speed on-chip oscillator, achieving a typical active current of 37.5 µA/MHz. At full 32 MHz, this equates to approximately 1.2 mA total core+peripheral current - verified under VDD = 3.3 V, TA = 25°C conditions per R01DS0424EJ0120 Rev.1.20.
Does the R7F102G4C2DNP#HA0 support hardware-accelerated capacitive touch sensing, and how many keys can it handle?
Yes, the R7F102G4C2DNP#HA0 integrates the CTSU2La capacitive sensing unit supporting up to 29 keys. It operates in self-capacitance mode (one pin per key) or mutual-capacitance matrix mode (transmit/receive pin pairs), with built-in noise cancellation and automatic drift compensation - all implemented without CPU intervention.
Can the R7F102G4C2DNP#HA0 retain RAM contents during ultra-low-power modes?
Yes, the R7F102G4C2DNP#HA0 retains full 4 KB RAM contents in STOP mode (200 nA) and HALT mode. In STOP mode, only the main clock is halted while RAM, registers, and peripheral states remain preserved - enabling instant wake-up with zero reinitialization overhead.
What communication interfaces are available on the R7F102G4C2DNP#HA0, and are they pin-multiplexed?
The R7F102G4C2DNP#HA0 provides 1 UARTA channel, 2 I2C/Simplified I2C channels, and 1 Simplified SPI channel - all fully pin-multiplexed on its 16-pin HWQFN package. For example, P10 serves as TS11, SCK00, and SCL00; P11 as TS12, RxD0, TOOLRxD, SI00, and SDA00 - maximizing interface density within minimal footprint.
Is an external crystal required for real-time clock functionality in the R7F102G4C2DNP#HA0?
No, the R7F102G4C2DNP#HA0 includes a factory-trimmed 32.768 kHz low-speed on-chip oscillator dedicated to RTC operation. This eliminates the need for an external crystal or loading capacitors, reducing BOM cost and PCB area - while still supporting RTC functions including alarm interrupts and clock correction.
R7F102G4C2DNP#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-WFQFN Exposed Pad
- Series:
- RL78/G22
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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#HA0 FAQ
1.How can I place an order for R7F102G4C2DNP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G4C2DNP#HA0 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#HA0 reliable?
The price and inventory of R7F102G4C2DNP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G4C2DNP#HA0 is usually 5 days.
3.What payment methods are accepted for R7F102G4C2DNP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G4C2DNP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G4C2DNP#HA0?
R7F102G4C2DNP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G4C2DNP#HA0 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#HA0?
For technical support, including R7F102G4C2DNP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G4C2DNP#HA0 requirements.
6.How does Aetrix verify that R7F102G4C2DNP#HA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G4C2DNP#HA0 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#HA0 meets industry standards.
7.What is the process for return or replacement of R7F102G4C2DNP#HA0?
All R7F102G4C2DNP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G4C2DNP#HA0, 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#HA0 part is unused and in its original packaging.
Return procedure for R7F102G4C2DNP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102G4C2DNP#HA0 Tags
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