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Renesas R7F102G7C3CNP#UA0
- Part No.:
- R7F102G7C3CNP#UA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R7F102G7C3CNP#UA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 24HWQFN -
- Quantity:
- Payment:
- Shipping:
Inventory:4,951
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Product details
Overview
R7F102G7C3CNP#UA0 from Renesas is a 24-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, up to 29 capacitive touch sensors, and supports UART, I²C, and SPI interfaces for battery-powered HMI and industrial control applications.
For engineers reviewing the R7F102G7C3CNP#UA0 datasheet, R7F102G7C3CNP#UA0 pinout, R7F102G7C3CNP#UA0 application, or R7F102G7C3CNP#UA0 equivalent, key selection considerations include its 24-pin HWQFN (4 × 4 mm, 0.50-mm pitch) package, -40°C to +85°C industrial temperature grade, 32 KB flash capacity, CTSU2La capacitive touch unit, and SNOOZE mode sequencer for autonomous low-power sensor polling.
Technical Context
The R7F102G7C3CNP#UA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). 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: the SNOOZE mode sequencer executes up to 32 sequential commands without CPU, RAM, or flash activation; the event link controller (ELC) enables direct peripheral-to-peripheral triggering; and the data transfer controller (DTC) supports block, repeat, and chain transfers activated by interrupts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 32 KB code flash with 2 KB block size, self-programming, and flash shield window |
| RAM / Data Flash | 4 KB on-chip RAM; 2 KB data flash with background operation (BGO) and 1M rewrite cycles |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; HALT and SNOOZE modes supported |
| Analog Peripherals | 10-channel 10-bit ADC with internal 1.48 V reference and temperature sensor |
| Capacitive Touch | CTSU2La unit supporting up to 29 keys via self- or mutual-capacitance methods |
| Timers & RTC | Eight 16-bit timer channels; 32-bit interval timer; RTC with alarm and clock correction |
Pinout & Package
Package: HWQFN-24 (4 × 4 mm, 0.50-mm pitch), exposed die pad, industrial-grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P137 | INTP0 interrupt input | Dedicated external interrupt pin for fast system wake-up or event capture |
| P122 / P121 | XT2 / XT1 crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC or high-accuracy timing reference |
| REGC | Regulator capacitor connection | Must be connected to VSS via 0.47–1 µF capacitor for internal LDO stability |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V supply; VSS serves as analog/digital ground reference |
| P30 | TSCAP / RTC1HZ | Capacitive touch sensor reference capacitor input and RTC 1 Hz output |
| P10–P12 | SCK00/SI00/SO00 | Hardware SPI interface (SCK, MISO, MOSI) for peripheral communication |
| P11 / P12 | TOOLRxD / TOOLTxD | On-chip debug interface pins for programming and serial trace via E1/E20 emulator |
| P20–P22 | ANI0–ANI2 | Three analog input channels with AVREFP/AVREFM reference voltage support |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 preconfigured commands (e.g., ADC sampling, CTSU scan, comparison) autonomously-no CPU, RAM, or flash required-enabling µA-level periodic sensing |
| Event Link Controller (ELC) | Routes 20 peripheral event signals (e.g., timer overflow → ADC trigger → DTC start) without CPU intervention, reducing latency and firmware overhead |
| Capacitive Touch Unit (CTSU2La) | Supports both self-capacitance (29 single-key channels) and mutual-capacitance (matrix) configurations with built-in noise cancellation for robust operation in noisy environments |
| Data Transfer Controller (DTC) | Performs memory-to-peripheral, peripheral-to-memory, or memory-to-memory transfers in normal, repeat, or block mode-triggered by any interrupt source, freeing CPU for higher-priority tasks |
| Low-Power Oscillators | High-accuracy ±1.0% 32 MHz on-chip oscillator (1.8–5.5 V); selectable 32.768 kHz low-speed oscillator for RTC and STOP-mode wake-up |
Applications
| Smart Home Sensors | Industrial Control Panels |
|---|---|
|
Use Scenario: Battery-powered occupancy, temperature, and humidity sensor nodes with capacitive touch buttons and wireless telemetry. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, CTSU-based UI, low-power scheduling via SNOOZE sequencer, and UART/I²C communication to transceiver IC. Use Value: 200 nA STOP current and autonomous SNOOZE polling extend coin-cell life beyond 5 years; 10-bit ADC and internal temperature sensor eliminate external components. |
Use Scenario: Local operator interface on PLC I/O modules, featuring touch sliders, status LEDs, and real-time diagnostics. IC Role / Device Role / Timing Role: HMI processor handling capacitive touch decoding, LED PWM control via TAU timers, RTC-stamped event logging, and RS-485 communication via UARTA. Use Value: CTSU2La tolerates panel overlay thickness up to 8 mm; 1.6–5.5 V operation ensures compatibility with 3.3 V and 5 V industrial rails; -40°C to +85°C rating guarantees field reliability. |
| White Goods User Interfaces | Medical Portable Devices |
|
Use Scenario: Touch-enabled control panels for refrigerators, washing machines, and dishwashers with moisture-resistant overlays. IC Role / Device Role / Timing Role: Dedicated touch controller interfacing with up to 29 electrodes, driving buzzer feedback (PCLBUZ0/PCLBUZ1), and communicating status to main MCU via I²C. Use Value: Mutual-capacitance matrix support enables slider/gesture recognition; built-in noise suppression maintains accuracy near motors and compressors. |
Use Scenario: Low-power handheld diagnostic tools (e.g., pulse oximeters, glucose meters) requiring precise analog measurement and intuitive touch navigation. IC Role / Device Role / Timing Role: Signal acquisition controller performing 10-bit ADC conversions on photodiode/thermistor inputs, executing CTSU-based button detection, and managing real-time clock for test timestamping. Use Value: Internal 1.48 V reference and temperature sensor enable ratiometric measurements without external references; 37.5 µA/MHz efficiency preserves battery runtime during frequent sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G7E3CNP#UA0 | Same 24-pin HWQFN package and peripherals, but with 64 KB code flash and identical 4 KB RAM/2 KB data flash | Required where firmware complexity exceeds 32 KB or future-proofing for feature expansion is needed | Select R7F102G7E3CNP#UA0 if bootloader, OTA updates, or multi-protocol stacks demand >32 KB flash |
| R7F102G6C3CSP#CA0 | 20-pin LSSOP package (4.4 × 6.5 mm), 32 KB flash, same core/peripherals but fewer I/O (16 vs. 21 GPIO) and no P60/P61 I²C pins | Suitable for space-constrained designs where reduced pin count and simpler layout outweigh I²C flexibility | Choose R7F102G6C3CSP#CA0 for cost-sensitive, compact consumer HMI where 20-pin LSSOP suffices and I²C is not required |
Compared with R7F102G7C3CNP#UA0, the R7F102G7E3CNP#UA0 offers double flash capacity without changing footprint or power profile, while the R7F102G6C3CSP#CA0 trades pin count and I²C capability for smaller PCB area and lower assembly cost-neither is pin-compatible, but both share identical peripheral IP and toolchain support.
Availability
R7F102G7C3CNP#UA0 is available at Aetrix Electronics and suitable for smart home sensors, industrial control panels, white goods user interfaces, medical portable devices, and battery-powered IoT edge nodes requiring stable component supply across production lifecycles.
Supply support for R7F102G7C3CNP#UA0 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 ultra-low-power embedded applications demanding rich analog integration, capacitive touch, and deterministic real-time control-designed specifically for cost-sensitive, battery-operated HMI and sensor-edge systems.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102G7C3CNP#UA0?
The R7F102G7C3CNP#UA0 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 oscillator maintains ±1.0% accuracy over VDD = 1.8–5.5 V and TA = -20°C to +85°C.
Does the R7F102G7C3CNP#UA0 support hardware debugging, and which pins are used?
Yes, the R7F102G7C3CNP#UA0 supports on-chip debugging via the on-chip debug interface. Pins P11 (TOOLRxD) and P12 (TOOLTxD) serve as the dedicated debug serial interface, compatible with Renesas E1 and E20 emulators for programming, breakpoint setting, and real-time trace without requiring additional debug headers.
How many capacitive touch channels does the R7F102G7C3CNP#UA0 support, and what configuration options are available?
The R7F102G7C3CNP#UA0 integrates the CTSU2La unit supporting up to 29 capacitive touch channels. It operates in self-capacitance mode (one pin per key) or mutual-capacitance mode (transmit/receive pin pairs forming a matrix), with programmable sensitivity, noise cancellation, and automatic drift compensation-all configurable without CPU involvement during operation.
What are the key low-power modes available on the R7F102G7C3CNP#UA0, and what is the typical current draw in each?
The R7F102G7C3CNP#UA0 offers HALT mode (CPU stopped, peripherals active), STOP mode (200 nA typical), and SNOOZE mode (sub-µA autonomous peripheral sequencing). In STOP mode, only the low-speed oscillator and RTC remain active; SNOOZE mode enables the sequencer to execute ADC scans or CTSU measurements without waking the CPU, achieving sustained µA-level average current in sensor polling applications.
Is the R7F102G7C3CNP#UA0 pin-compatible with other RL78/G22 variants, and what package does it use?
No, the R7F102G7C3CNP#UA0 is not pin-compatible with other RL78/G22 variants-it uses a unique 24-pin HWQFN package (4 × 4 mm, 0.50-mm pitch) with specific pin assignments documented in Table 1-4 of the datasheet. While functionally similar parts exist (e.g., R7F102G7E3CNP#UA0), they share the same footprint but differ in flash size; cross-package compatibility (e.g., LQFP or WFLGA) requires redesign due to differing pinouts and thermal pads.
R7F102G7C3CNP#UA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G22
- Packaging:
- Tray
- 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:
- 19
- 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 6x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102G7C3CNP#UA0 FAQ
1.How can I place an order for R7F102G7C3CNP#UA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G7C3CNP#UA0 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 R7F102G7C3CNP#UA0 reliable?
The price and inventory of R7F102G7C3CNP#UA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G7C3CNP#UA0 is usually 5 days.
3.What payment methods are accepted for R7F102G7C3CNP#UA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G7C3CNP#UA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G7C3CNP#UA0?
R7F102G7C3CNP#UA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G7C3CNP#UA0 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 R7F102G7C3CNP#UA0?
For technical support, including R7F102G7C3CNP#UA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G7C3CNP#UA0 requirements.
6.How does Aetrix verify that R7F102G7C3CNP#UA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G7C3CNP#UA0 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 R7F102G7C3CNP#UA0 meets industry standards.
7.What is the process for return or replacement of R7F102G7C3CNP#UA0?
All R7F102G7C3CNP#UA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G7C3CNP#UA0, 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 R7F102G7C3CNP#UA0 part is unused and in its original packaging.
Return procedure for R7F102G7C3CNP#UA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102G7C3CNP#UA0 Tags
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