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Renesas R7F102G4C3CNP#HA0
- Part No.:
- R7F102G4C3CNP#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R7F102G4C3CNP#HA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 16HWQFN -
- Quantity:
- Payment:
- Shipping:
Inventory:2,704
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Product details
Overview
R7F102G4C3CNP#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 to 5.5 V, achieves 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), RTC, and UART/SPI/I²C interfaces - deployed in battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F102G4C3CNP#HA0 datasheet, R7F102G4C3CNP#HA0 pinout, R7F102G4C3CNP#HA0 application, or R7F102G4C3CNP#HA0 equivalent, key selection criteria include its 16-pin HWQFN (3 × 3 mm, 0.5 mm pitch) footprint, -40 to +85°C temperature grade, 32 KB flash capacity, CTSU2La capacitive touch unit, and support for SNOOZE mode sequencer-driven ultra-low-power wake-up sequences.
Technical Context
The R7F102G4C3CNP#HA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). It features a dedicated SNOOZE mode sequencer (SMS) that executes up to 32 low-power processes using 21 command types without CPU, flash, or RAM activation.
Its peripheral set includes an 8-/10-bit ADC with internal 1.48 V reference and temperature sensor, real-time clock with alarm and correction, watchdog timer, and event link controller (ELC) enabling 20 configurable hardware-triggered peripheral interconnections - all operating within the 1.6–5.5 V supply range and qualified for industrial ambient temperatures (-40 to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing control for real-time sensor polling and HMI response. |
| Flash Memory | 32 KB code flash + 2 KB data flash; supports background operation (BGO) and 1M write cycles for firmware updates and parameter logging. |
| RAM | 4 KB on-chip RAM; sufficient for real-time stack, ISR context, and touch-sensing buffer without external memory. |
| Operating Voltage | 1.6 V to 5.5 V; allows direct integration with Li-ion, coin-cell, or 3.3/5 V system rails without LDO overhead. |
| Ultra-Low Power | 37.5 µA/MHz active current; 200 nA STOP current; enables multi-year battery life in wireless sensor endpoints. |
| Capacitive Sensing | CTSU2La unit supporting 29 self-capacitance keys or matrix mutual-capacitance; eliminates mechanical buttons in industrial panels. |
| ADC Resolution | 10-bit SAR ADC with 10 analog inputs and internal 1.48 V reference; enables accurate voltage, temperature, and analog sensor monitoring. |
Pinout & Package
Package: HWQFN-16 (3 × 3 mm, 0.50-mm pitch), exposed die pad, industrial temperature 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 accuracy or high-frequency crystal up to 20 MHz for precise timing. |
| P121 / X1 / XT1 | Crystal oscillator output | Completes crystal circuit; enables low-jitter clock source independent of internal oscillators. |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS for stable on-chip voltage regulator operation. |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V supply; no separate analog/digital rails needed - simplifies PCB layout. |
| P30 / TSCAP / RTC1HZ / SCL11 | Touch sense capacitor input / RTC output / I²C clock | Shared pin reduces component count: drives CTSU2La reference capacitor, outputs 1 Hz RTC signal, and serves as I²C clock line. |
| P10–P12 / P17 / P20–P22 | Multi-function GPIO with CTSU, UART, SPI, ADC | Enables flexible peripheral mapping: e.g., P11/P12 for UART debug (TOOLRxD/TOOLTxD), P20–P22 for analog sensor inputs. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step low-power sequences (e.g., periodic ADC sampling + CTSU scan + RTC check) without CPU wake-up - extends battery life by >10× vs. polling. |
| Capacitive Touch Unit (CTSU2La) | Supports up to 29 self-capacitance keys or matrix configurations; immune to moisture and ESD per IEC 61000-4-2 Level 4 (±8 kV contact). |
| Data Flash with BGO | 2 KB data flash supports background rewriting while executing code from main flash - enables seamless over-the-air parameter updates. |
| Event Link Controller (ELC) | Hardware routing of 20 event signals (e.g., ADC end → DMA trigger → UART TX start) eliminates CPU intervention and reduces latency to <100 ns. |
| Multi-Speed Oscillators | High-speed (32 MHz ±1%), middle-speed (4/2/1 MHz adjustable), and low-speed (32.768 kHz) on-chip oscillators - eliminates external crystals for most functions. |
Applications
| Industrial Control Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled front panel for HVAC controllers or PLC operator interfaces in factory environments. IC Role / Device Role / Timing Role: Main MCU handling capacitive button detection, real-time status display via SPI, and serial communication with host controller. Use Value: CTSU2La provides reliable touch performance under gloves/oil; 200 nA STOP mode enables instant wake-on-touch with zero standby drain. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in remote locations. IC Role / Device Role / Timing Role: System controller managing 10-bit ADC readings, RTC-timed sampling intervals, and UART/low-power I²C sensor interfacing. Use Value: 37.5 µA/MHz active current and SMS-driven sleep/wake cycles extend CR2032 battery life beyond 5 years. |
| Energy Meter Interface | IoT Edge Gateway Subsystem |
|
Use Scenario: Tamper-resistant meter interface module with LED indicators, pulse counting, and secure parameter storage. IC Role / Device Role / Timing Role: Dedicated subsystem MCU performing pulse accumulation, secure flash writes, and optical/IR communication. Use Value: Flash security features (block erase prohibition) prevent unauthorized firmware modification; RTC enables time-stamped event logging. |
Use Scenario: Local decision node aggregating data from multiple sensors before forwarding to cloud via Wi-Fi/BLE module. IC Role / Device Role / Timing Role: Edge intelligence hub running lightweight inference, sensor fusion, and protocol translation (e.g., Modbus to MQTT). Use Value: ELC enables autonomous peripheral chaining (ADC → DMA → UART), freeing CPU for algorithm execution without interrupt overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G4E3CNP#HA0 | Same package and pinout; 64 KB code flash (vs. 32 KB), identical peripherals and power specs. | Required when firmware size exceeds 32 KB or future-proofing for feature expansion is needed. | Select R7F102G4E3CNP#HA0 only if full 64 KB flash utilization is confirmed; otherwise, R7F102G4C3CNP#HA0 reduces cost and flash wear. |
| STM32L011K4T6 | ARM Cortex-M0+, 16 KB flash, 2 KB RAM, 12-bit ADC; lacks integrated CTSU and SNOOZE sequencer. | Suitable for basic sensing but requires external touch controller and software-managed low-power sequencing. | Choose STM32L011K4T6 only if ARM toolchain compatibility is mandatory; R7F102G4C3CNP#HA0 delivers superior touch integration and lower system-level BOM cost. |
Compared with R7F102G4E3CNP#HA0, the R7F102G4C3CNP#HA0 saves flash cost and wear while retaining identical low-power behavior and touch capability; versus STM32L011K4T6, it provides hardware-accelerated capacitive sensing and autonomous SNOOZE sequencing - reducing firmware complexity and improving reliability in industrial HMI.
Availability
R7F102G4C3CNP#HA0 is available at Aetrix Electronics and suitable for industrial control panels, smart sensor nodes, energy meter interfaces, and IoT edge gateway subsystems requiring stable component supply across long production lifecycles.
Supply support for R7F102G4C3CNP#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G22 product line targets cost-sensitive, ultra-low-power embedded applications - delivering integrated capacitive touch, robust timing, and simplified power management for industrial HMI and sensor edge devices.
FAQ
What is the maximum operating frequency and corresponding current consumption of the R7F102G4C3CNP#HA0?
The R7F102G4C3CNP#HA0 operates at up to 32 MHz using the high-speed on-chip oscillator, achieving a typical active current of 37.5 µA/MHz. At full 32 MHz operation, this equates to approximately 1.2 mA total supply current - verified under VDD = 3.3 V, TA = 25°C conditions per R01DS0424EJ0120 Rev.1.20.
Does the R7F102G4C3CNP#HA0 support hardware debugging, and which interface is used?
Yes, the R7F102G4C3CNP#HA0 supports on-chip debugging via the TOOLRxD (P11) and TOOLTxD (P12) pins, which implement a dedicated UART-based debug interface compatible with Renesas E2 studio and CS+ IDE. No external debug probe is required for basic firmware download and breakpoint debugging.
How many capacitive touch channels can be implemented using the R7F102G4C3CNP#HA0's CTSU2La unit?
The R7F102G4C3CNP#HA0's CTSU2La unit supports up to 29 capacitive touch keys in self-capacitance mode (one pin per key) or scalable matrix configurations in mutual-capacitance mode - with all 29 pins (P10–P22, P137, P147, P17, P30, P50, P51, P122, P121, P00, P01, P120) available for CTSU use per Table 1-2 of R01DS0424EJ0120.
What are the supported clock sources for the R7F102G4C3CNP#HA0's real-time clock (RTC)?
The R7F102G4C3CNP#HA0 RTC can be clocked by either the 32.768 kHz low-speed on-chip oscillator (typical accuracy ±100 ppm) or an external 32.768 kHz crystal connected to P121/P122 - enabling ±20 ppm accuracy for time-critical logging and scheduling applications.
Is the R7F102G4C3CNP#HA0 pin-compatible with other RL78/G22 variants in the same package?
Yes, the R7F102G4C3CNP#HA0 is fully pin-compatible with all other 16-pin HWQFN RL78/G22 variants (e.g., R7F102G4E3CNP#HA0, R7F102G6C3CSP#HA0), sharing identical pin functions, electrical characteristics, and thermal profile - allowing drop-in replacement where flash size or pin count permits.
R7F102G4C3CNP#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102G4C3CNP#HA0 FAQ
1.How can I place an order for R7F102G4C3CNP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G4C3CNP#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 R7F102G4C3CNP#HA0 reliable?
The price and inventory of R7F102G4C3CNP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G4C3CNP#HA0 is usually 5 days.
3.What payment methods are accepted for R7F102G4C3CNP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G4C3CNP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G4C3CNP#HA0?
R7F102G4C3CNP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G4C3CNP#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 R7F102G4C3CNP#HA0?
For technical support, including R7F102G4C3CNP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G4C3CNP#HA0 requirements.
6.How does Aetrix verify that R7F102G4C3CNP#HA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G4C3CNP#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 R7F102G4C3CNP#HA0 meets industry standards.
7.What is the process for return or replacement of R7F102G4C3CNP#HA0?
All R7F102G4C3CNP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G4C3CNP#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 R7F102G4C3CNP#HA0 part is unused and in its original packaging.
Return procedure for R7F102G4C3CNP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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