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Renesas R7F102G7E3CNP#AA0
- Part No.:
- R7F102G7E3CNP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R7F102G7E3CNP#AA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:1,368
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Product details
Overview
R7F102G7E3CNP#AA0 from Renesas is a 24-pin HWQFN-packaged RL78/G22 16-bit microcontroller with 64 KB code flash, 4 KB RAM, and 2 KB data flash, operating from 1.6 to 5.5 V. It delivers true low-power operation (37.5 µA/MHz active, 200 nA STOP mode) and integrates 10-channel 10-bit ADC, RTC, capacitive touch sensing (up to 29 keys), and UART/I²C/SPI interfaces - deployed in battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F102G7E3CNP#AA0 datasheet, R7F102G7E3CNP#AA0 pinout, R7F102G7E3CNP#AA0 application, or R7F102G7E3CNP#AA0 equivalent, key selection criteria include its 24-pin HWQFN (4 × 4 mm, 0.50-mm pitch) footprint, -40 to +85°C industrial temperature grade, 64 KB flash capacity, CTSU2La capacitive touch unit, and SNOOZE mode sequencer for ultra-low-power event-driven wake-up without CPU involvement.
Technical Context
The R7F102G7E3CNP#AA0 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). Its power architecture includes HALT, STOP, and SNOOZE modes, with STOP mode wakeup in under 4 µs and SNOOZE sequencer enabling up to 32 low-overhead background operations using 21 command types.
Peripheral integration includes an Event Link Controller (ELC) routing 20 event signals between peripherals, a Data Transfer Controller (DTC) supporting chain transfers, and dual I²C interfaces (IICA0/IICA1) plus up to four UARTA channels - all accessible via multiplexed pins on the 24-pin HWQFN package with full pin function mapping confirmed in Table 1-4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at sub-µs timing resolution. |
| Flash / RAM | 64 KB code flash + 2 KB data flash + 4 KB SRAM; supports background rewriting and boot swapping for robust firmware updates. |
| Power Modes | 37.5 µA/MHz active current; 200 nA STOP mode; SNOOZE mode sequencer operates independently of CPU/flash/RAM for lowest system-level idle power. |
| ADC | 10-bit resolution, 10 analog inputs, internal 1.48 V reference and temperature sensor; enables direct sensor signal acquisition without external references. |
| Capacitive Touch | CTSU2La unit supporting self-capacitance (29 keys) and mutual-capacitance matrix configurations; eliminates need for external touch controller ICs. |
| Clock Sources | High-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz); low-speed 32.768 kHz oscillator; external crystal support (XT1/XT2); enables precise timing without external crystals in most applications. |
| Operating Temp | -40 to +85°C (industrial grade); validated across full voltage range (1.6–5.5 V), ensuring reliability in unregulated battery or wide-input industrial supplies. |
Pinout & Package
Package: HWQFN-24, 4 × 4 mm body, 0.50-mm pitch, exposed die pad (connected to VSS per datasheet caution).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P137 | Interrupt Input | INTP0 external interrupt source; enables immediate wake-up from STOP/SNOOZE on asynchronous events. |
| P30 | Capacitive Sensing / RTC | TSCAP input for CTSU2La; also provides RTC1HZ output - single pin serves both touch sensing reference and real-time clock signaling. |
| P10–P12 | SPI/I²C/UART Interface | Multiplexed SCK00/SCL00/TS11, SI00/RxD0/SDA00/TS12, SO00/TxD0/TOOLTxD/TS13 - enables shared physical pins for multiple serial protocols with software-selectable functions. |
| P60/P61 | I²C Interface | SCLA0/SDAA0 dedicated I²C bus pins; support fast-mode (400 kHz) communication with external sensors or EEPROMs without bit-banging overhead. |
| P00/P01 | ADC / UART / Touch | ANI17/ANI16 analog inputs; also serve as TxD1/RxD1 UART and TS26/TS27 touch sense channels - enables integrated sensor + comms + HMI on minimal pin count. |
| REGC | Regulator Decoupling | Must be connected to VSS via 0.47–1 µF capacitor; stabilizes internal LDO output for analog and touch circuitry performance. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer | Executes up to 32 preconfigured operations (e.g., ADC sampling, timer compare, GPIO toggle) autonomously - reduces average system power by eliminating CPU polling loops. |
| Capacitive Touch Unit (CTSU2La) | Supports both self- and mutual-capacitance methods on same pins; achieves >100:1 signal-to-noise ratio without shield layers or external components. |
| Data Flash Background Operation | Enables 1,000,000 write cycles with BGO (Background Operation); allows concurrent program execution and nonvolatile parameter storage during runtime. |
| Event Link Controller (ELC) | Routes 20 peripheral events (e.g., ADC end-of-conversion, timer overflow) directly to other modules without CPU intervention - cuts latency and ISR overhead. |
| Low-Power Real-Time Clock | RTC runs from 32.768 kHz oscillator in STOP mode with alarm and calendar functions; consumes <1 µA, enabling accurate timekeeping in battery-critical applications. |
Applications
| Industrial Control Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Local HMI on factory-floor equipment with pushbuttons, LED indicators, and environmental monitoring. IC Role / Device Role / Timing Role: Main controller executing UI logic, reading capacitive buttons, driving LEDs via GPIO, and communicating via UART to PLC or gateway. Use Value: Integrated CTSU2La replaces discrete touch ICs; 64 KB flash accommodates bootloader + application + OTA update image; 200 nA STOP mode extends battery life in wireless variants. |
Use Scenario: Battery-powered temperature/humidity node transmitting data over UART to LoRaWAN module. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring ADC readings, timestamping with RTC, managing sleep/wake cycles via SNOOZE sequencer, and formatting packets for transmission. Use Value: SNOOZE mode handles periodic wake-up and ADC trigger autonomously; data flash stores calibration coefficients and last-sent packet ID; 1.6 V minimum supply enables use with aging primary cells. |
| Home Appliance Control Board | Medical Diagnostic Handheld |
|
Use Scenario: Cooktop or washing machine mainboard requiring touch interface, motor control signals, and safety monitoring. IC Role / Device Role / Timing Role: System manager handling capacitive slider/knob input, generating PWM for fan/motor drivers, monitoring thermistors via ADC, and enforcing watchdog timeouts. Use Value: On-chip 10-bit ADC with internal reference eliminates external voltage reference; ELC links ADC completion to DTC for automatic sensor data transfer to RAM; HALT mode reduces standby consumption below 1 µA. |
Use Scenario: Portable blood glucose meter with LCD, button interface, and electrochemical sensor front-end. IC Role / Device Role / Timing Role: Precision analog front-end controller performing low-noise ADC conversion, managing touch-key feedback, driving segment LCD, and logging results to data flash. Use Value: Internal 1.48 V ADC reference ensures stable measurement accuracy across battery discharge; CTSU2La supports wet-finger tolerant touch; 4 KB RAM buffers full test sequence before flash commit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G7C3CNP#AA0 | Same 24-pin HWQFN package and peripherals, but with 32 KB code flash and identical 4 KB RAM/2 KB data flash. | Targeted at cost-sensitive designs where firmware size remains under 32 KB; lacks headroom for future feature expansion or large bootloader. | Select when firmware footprint is verified ≤30 KB and long-term scalability is not required. |
| R7F102G8E3CLA#AC0 | 25-pin WFLGA (3 × 3 mm) package with identical 64 KB flash, 4 KB RAM, and CTSU2La; differs in pin count, layout, and thermal characteristics. | Suitable for space-constrained PCBs where 24-pin QFN footprint is unavailable; requires redesign for WFLGA land pattern and reflow profile. | Choose only if board area is critical and WFLGA assembly capability exists; verify thermal derating for continuous operation. |
Compared with R7F102G7C3CNP#AA0, the R7F102G7E3CNP#AA0 provides 32 KB additional flash for secure bootloader, OTA stack, or enhanced feature sets; versus R7F102G8E3CLA#AC0, it offers superior thermal dissipation and simpler PCB routing due to larger 24-pin HWQFN pad pitch and exposed die pad.
Availability
R7F102G7E3CNP#AA0 is available at Aetrix Electronics and suitable for industrial control panels, smart sensor nodes, home appliance control boards, and medical diagnostic handhelds requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for R7F102G7E3CNP#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 industrial, automotive, and IoT markets.
The RL78/G22 product line targets ultra-low-power embedded applications demanding rich analog integration, capacitive touch, and robust firmware update capability - designed specifically for cost-sensitive, battery-operated, and industrial-grade control systems.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102G7E3CNP#AA0?
The R7F102G7E3CNP#AA0 supports up to 32 MHz operation using its high-speed on-chip oscillator, with guaranteed functionality across the full 1.6 to 5.5 V supply range. At 32 MHz, the minimum instruction execution time is 0.03125 µs. Voltage detectors (LVD0/LVD1) provide configurable brown-out protection independent of clock source.
Does the R7F102G7E3CNP#AA0 support hardware-based capacitive touch sensing, and how many keys can it handle?
Yes, the R7F102G7E3CNP#AA0 integrates the CTSU2La capacitive touch sensing unit, supporting up to 29 self-capacitance keys or configurable mutual-capacitance matrices. It operates across the full 1.8–5.5 V supply range and includes built-in noise suppression algorithms - no external RC networks or dedicated touch ASICs are required for basic implementations.
What debug interface does the R7F102G7E3CNP#AA0 provide, and which pins are used?
The R7F102G7E3CNP#AA0 uses the on-chip debug interface accessed via P11 (TOOLRxD), P12 (TOOLTxD), and P40 (TOOL0) pins in the 24-pin HWQFN package. This implements a 3-wire SWD-like protocol compatible with Renesas E2 studio and standard JTAG/SWD debug probes - no external debug header or dedicated debug pins beyond these three signals are needed.
Can the R7F102G7E3CNP#AA0 perform ADC conversions while in low-power STOP mode?
No, the ADC cannot operate in STOP mode. However, the R7F102G7E3CNP#AA0 supports SNOOZE mode, where the CTSU2La, RTC, and certain timers remain active while CPU, flash, and RAM are powered down. ADC conversions can be triggered autonomously in SNOOZE mode via timer or RTC events - achieving sub-1 µA average current in periodic sensing applications.
What is the endurance and retention specification for the data flash memory in the R7F102G7E3CNP#AA0?
The R7F102G7E3CNP#AA0 features 2 KB of data flash memory rated for 1,000,000 write/erase cycles (typical) with 20-year data retention at 85°C. Background operation (BGO) allows code execution from main flash while data flash is being rewritten - essential for logging, calibration storage, or firmware parameter updates without system interruption.
R7F102G7E3CNP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-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:
- 19
- 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 6x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102G7E3CNP#AA0 FAQ
1.How can I place an order for R7F102G7E3CNP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G7E3CNP#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 R7F102G7E3CNP#AA0 reliable?
The price and inventory of R7F102G7E3CNP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G7E3CNP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102G7E3CNP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G7E3CNP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G7E3CNP#AA0?
R7F102G7E3CNP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G7E3CNP#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 R7F102G7E3CNP#AA0?
For technical support, including R7F102G7E3CNP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G7E3CNP#AA0 requirements.
6.How does Aetrix verify that R7F102G7E3CNP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G7E3CNP#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 R7F102G7E3CNP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102G7E3CNP#AA0?
All R7F102G7E3CNP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G7E3CNP#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 R7F102G7E3CNP#AA0 part is unused and in its original packaging.
Return procedure for R7F102G7E3CNP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102G7E3CNP#AA0 Tags
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