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Renesas R7F102G7E2DNP#AA0
- Part No.:
- R7F102G7E2DNP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R7F102G7E2DNP#AA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:4,216
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Product details
Overview
R7F102G7E2DNP#AA0 from Renesas is a 24-pin HWQFN-packaged RL78/G22 16-bit microcontroller with 64 KB code flash, 4 KB RAM, and integrated capacitive touch sensing for up to 29 keys. It operates from 1.6–5.5 V, delivers 37.5 µA/MHz active current and 200 nA stop current, and targets ultra-low-power consumer HMI applications such as smart home controls and battery-powered appliances.
For engineers reviewing the R7F102G7E2DNP#AA0 datasheet, R7F102G7E2DNP#AA0 pinout, R7F102G7E2DNP#AA0 application, or R7F102G7E2DNP#AA0 equivalent, key selection criteria include its 24-pin HWQFN (4 × 4 mm, 0.50-mm pitch) footprint, 64 KB flash/4 KB RAM memory configuration, CTSU2La capacitive touch unit, RTC with alarm, and dual UART/I²C/SPI interface support for sensor hub and control panel designs.
Technical Context
The R7F102G7E2DNP#AA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). Its SNOOZE mode sequencer enables autonomous low-power processing of up to 32 sequential operations without CPU, flash, or RAM activation.
Peripheral integration includes an 8-/10-bit ADC with 10 analog inputs and internal 1.48 V reference, 16-bit timer array (8 channels), real-time clock with 99-year calendar and alarm, and event link controller (ELC) for configurable peripheral-to-peripheral signal routing - all optimized for deterministic, low-latency HMI and sensor control tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and variable instruction timing (0.03125–30.5 µs) |
| Flash / RAM | 64 KB code flash + 2 KB data flash + 4 KB SRAM - supports background rewriting and boot swapping |
| Supply Range | 1.6–5.5 V - enables direct operation from single-cell Li-ion, alkaline, or regulated 3.3 V rails |
| Power Modes | HALT (0.23 µA), STOP (200 nA), SNOOZE - enables multi-year battery life in intermittent-sensing applications |
| Capacitive Sensing | CTSU2La unit supporting 29 self-capacitance keys or matrix mutual-capacitance configurations |
| Timers & RTC | 8× 16-bit TAU channels + 1× 32-bit interval timer + 1× RTC with calendar, alarm, and clock correction |
| Communication | Up to 6× I²C/Simplified I²C, 4× UART/UARTA (LIN-capable), 5× CSI/SPI - no external transceivers needed for basic bus interfacing |
Pinout & Package
24-pin HWQFN package (4 × 4 mm, 0.50-mm pitch) with exposed die pad; requires REGC capacitor (0.47–1 µF) to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P137 | INTP0 interrupt input | Dedicated external wake-up source for STOP mode; supports edge-triggered detection |
| P30 | TSCAP / RTC1HZ / SCL11 | Shared capacitive touch reference, RTC 1-Hz output, and I²C clock - enables compact touch+timekeeping subsystems |
| P17 | TI02/TO02/TS18/SDA11 | Configurable timer I/O, touch sensor input, and I²C data line - reduces pin count for mixed-signal timing and comms |
| P10–P12 | SCK00/SI00/SO00 | Full-duplex SPI interface (3-wire) - supports daisy-chained sensors or display drivers without GPIO bit-banging |
| P20–P22 | ANI0–ANI2 / AVREFP/AVREFM | Three independent ADC inputs with dedicated voltage reference pins - ensures stable 8-/10-bit conversion across supply variation |
| P60/P61 | SCLA0/SDAA0 | Dedicated I²C bus for auxiliary peripherals (e.g., EEPROM, temperature sensor) - isolates main system I²C traffic |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 200 nA STOP current and 37.5 µA/MHz active current enable >5-year coin-cell operation in wake-on-touch systems |
| SNOOZE mode sequencer | Executes up to 32 pre-programmed commands (e.g., ADC sampling, comparison, GPIO toggle) autonomously - eliminates CPU wake-ups |
| Capacitive Touch Unit (CTSU2La) | Supports both self- and mutual-capacitance modes on shared pins - allows flexible key layout without dedicated touch controller IC |
| Data flash with BGO | Background operation enables logging sensor data while executing application code - critical for firmware-over-the-air updates |
| Event Link Controller (ELC) | Hardware routing of 20 peripheral events (e.g., ADC end → DMA trigger → UART TX) - removes software latency in real-time control loops |
Applications
| Smart Thermostat Control Panel | Wireless Doorbell with Touch UI |
|---|---|
|
Use Scenario: Battery-powered wall-mounted thermostat with capacitive touch buttons, ambient temperature/humidity sensing, and BLE connectivity. IC Role / Device Role / Timing Role: Main system controller managing touch input, sensor acquisition, RTC-based scheduling, and UART-to-BLE bridge. Use Value: 200 nA STOP current extends CR2032 battery life beyond 3 years; CTSU2La eliminates mechanical switches and reduces BOM cost by 30% vs discrete touch solution. |
Use Scenario: Outdoor doorbell with weather-resistant touch surface, motion-triggered audio playback, and push-button chime override. IC Role / Device Role / Timing Role: HMI processor handling touch debouncing, PCLBUZ0-driven buzzer waveform generation, and RTC-based time-stamped event logging. Use Value: SNOOZE mode sequencer wakes only on motion or touch - cuts average power to 1.2 µA; integrated 10-bit ADC directly reads thermistor for temperature compensation. |
| Portable Medical Glucose Meter | Rechargeable Power Tool Control Interface |
|
Use Scenario: Handheld glucose meter with LCD, strip insertion detection, optical sensor, and USB charging indicator. IC Role / Device Role / Timing Role: System-on-chip managing electrochemical sensor interface, LCD driver timing, USB VBUS monitoring, and secure flash storage. Use Value: 64 KB flash accommodates encrypted calibration tables and firmware update image; 1.6 V minimum supply enables operation down to single-cell LiFePO₄ discharge endpoint. |
Use Scenario: Cordless drill/driver with OLED status display, torque-level touch slider, battery fuel gauge, and motor commutation feedback. IC Role / Device Role / Timing Role: Secondary controller handling HMI, battery ADC monitoring, and CAN/LIN communication with main motor MCU. Use Value: Dual UART interfaces allow simultaneous debug port and LIN bus connection; 4 KB RAM supports real-time torque curve interpolation without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G7C2DNP#AA0 | 32 KB code flash, same 24-pin HWQFN package, identical peripherals and power specs | Lower memory footprint suits simpler touch remotes or sensor nodes without firmware update capability | Select when application code size remains under 28 KB and data flash retention requirements are unchanged |
| R7F102G8E2DLA#AC0 | 25-pin WFLGA (3 × 3 mm), same 64 KB flash/4 KB RAM, adds one extra analog input (ANI18) and removes P60/P61 I²C | Better suited for space-constrained PCBs where 0.5-mm-pitch WFLGA is preferred over QFN | Choose for ultra-compact designs requiring identical performance but smaller footprint - verify REGC capacitor placement on WFLGA thermal pad |
Compared with R7F102G7C2DNP#AA0, the R7F102G7E2DNP#AA0 provides 32 KB additional flash for field-upgradable firmware and secure bootloader storage; versus R7F102G8E2DLA#AC0, it offers two dedicated I²C pins (P60/P61) for isolated sensor bus routing but occupies slightly larger board area.
Availability
R7F102G7E2DNP#AA0 is available at Aetrix Electronics and suitable for smart home controls, portable medical devices, and rechargeable power tool interfaces requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade alternatives.
Supply support for R7F102G7E2DNP#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 delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated human-machine interface and sensor control applications - balancing performance, integration, and energy efficiency.
FAQ
What is the operating voltage range supported by the R7F102G7E2DNP#AA0?
The R7F102G7E2DNP#AA0 operates from 1.6 V to 5.5 V, enabling direct compatibility with single-cell lithium batteries (2.5–4.2 V), alkaline cells (1.5 V × 2), and standard 3.3 V or 5 V regulated supplies. This wide range simplifies power architecture design and eliminates need for intermediate regulators in many portable applications.
How many capacitive touch channels does the R7F102G7E2DNP#AA0 support?
The R7F102G7E2DNP#AA0 integrates the CTSU2La capacitive touch unit supporting up to 29 keys using self-capacitance mode or matrix-based mutual-capacitance configurations. Pin assignments for touch sensing (e.g., TS00–TS28) are multiplexed with general-purpose I/O and timers, allowing flexible layout without dedicated touch controller ICs.
Does the R7F102G7E2DNP#AA0 include a real-time clock with calendar function?
Yes, the R7F102G7E2DNP#AA0 includes a full-featured real-time clock (RTC) that supports counting from one second to 99 years, alarm interrupts, and hardware clock correction. The RTC maintains time in STOP mode using the 32.768 kHz subsystem clock and outputs a precise 1 Hz signal on P30/RTC1HZ for LED blink or scheduling purposes.
What debug interface is available on the R7F102G7E2DNP#AA0?
The R7F102G7E2DNP#AA0 supports on-chip debugging via the TOOL0 (P40), TOOLRxD (P11), and TOOLTxD (P12) pins, forming a 3-wire SWD-compatible interface. No external debugger is required for flash programming or real-time trace - enabling rapid prototyping and field firmware updates through standard UART-to-USB adapters.
Is the R7F102G7E2DNP#AA0 pin-compatible with other RL78/G22 variants in the same package?
Yes, all RL78/G22 devices in the 24-pin HWQFN package (e.g., R7F102G7C2DNP#AA0, R7F102G7E2DNP#AA0) share identical pinouts and electrical characteristics. Memory size (32 KB vs 64 KB flash) and temperature grade (D = -40 to +85°C) are the only functional differences - allowing seamless migration during development or production ramp.
R7F102G7E2DNP#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102G7E2DNP#AA0 FAQ
1.How can I place an order for R7F102G7E2DNP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G7E2DNP#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 R7F102G7E2DNP#AA0 reliable?
The price and inventory of R7F102G7E2DNP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G7E2DNP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102G7E2DNP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G7E2DNP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G7E2DNP#AA0?
R7F102G7E2DNP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G7E2DNP#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 R7F102G7E2DNP#AA0?
For technical support, including R7F102G7E2DNP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G7E2DNP#AA0 requirements.
6.How does Aetrix verify that R7F102G7E2DNP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G7E2DNP#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 R7F102G7E2DNP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102G7E2DNP#AA0?
All R7F102G7E2DNP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G7E2DNP#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 R7F102G7E2DNP#AA0 part is unused and in its original packaging.
Return procedure for R7F102G7E2DNP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102G7E2DNP#AA0 Tags
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