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Renesas R7F102G4E2DNP#AA0
- Part No.:
- R7F102G4E2DNP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R7F102G4E2DNP#AA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:2,807
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Product details
Overview
R7F102G4E2DNP#AA0 from Renesas is a 16-pin HWQFN-packaged RL78/G22 16-bit microcontroller with 64 KB code flash, 4 KB RAM, and ultra-low-power operation (37.5 µA/MHz active, 200 nA STOP mode), designed for capacitive touch-enabled consumer electronics such as smart home controls and portable battery-powered interfaces.
For engineers reviewing the R7F102G4E2DNP#AA0 datasheet, R7F102G4E2DNP#AA0 pinout, R7F102G4E2DNP#AA0 application, or R7F102G4E2DNP#AA0 equivalent, key selection criteria include its 16-pin HWQFN (3 × 3 mm, 0.50-mm pitch) footprint, integrated CTSU2La capacitive sensing unit supporting up to 29 keys, and dual-voltage operation (1.6–5.5 V) enabling direct interface with 1.8/2.5/3.0-V peripherals.
Technical Context
The R7F102G4E2DNP#AA0 implements the RL78 CPU core with a 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). It integrates a SNOOZE mode sequencer (SMS) that executes up to 32 low-power sensor-processing steps without CPU, RAM, or flash activation.
Its peripheral set includes a 10-bit A/D converter with 3 analog inputs, 8-channel 16-bit timer array unit (TAU), RTC with alarm and clock correction, and communication interfaces: 1 CSI/SPI channel, 1 UARTA channel, and 2 I²C channels - all mapped to its 16-pin I/O constraint with multiplexed functions including TSCAP, TS11–TS20, and TOOLRxD/TOOLTxD debug pins.
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 | 64 KB code flash + 2 KB data flash + 4 KB SRAM; supports background rewriting and boot swapping |
| Power Modes | 37.5 µA/MHz active, 200 nA STOP, HALT, and SNOOZE modes; eliminates need for external wake controllers |
| Capacitive Sensing | CTSU2La unit with self- and mutual-capacitance support; enables up to 29 touch keys on 16-pin package |
| ADC | 10-bit resolution, 3-channel analog input, internal 1.48 V reference and temperature sensor; no external reference required |
| Operating Voltage | 1.6–5.5 V supply range; allows direct interfacing with 1.8 V, 2.5 V, and 3.0 V logic without level shifters |
| Temperature Range | -40°C to +85°C (consumer-grade); validated for indoor ambient environments without thermal derating |
Pinout & Package
Package: HWQFN-16 (3 × 3 mm, 0.50-mm pitch), exposed die pad, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P122 / X2 / EXCLK / XT2 / EXCLKS | Crystal oscillator input / external clock input | Supports 32.768 kHz crystal for RTC or high-frequency external clock up to 20 MHz |
| P121 / X1 / XT1 | Crystal oscillator output | Completes 32.768 kHz crystal circuit; enables precision timekeeping with <±20 ppm stability |
| REGC | Internal regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS; stabilizes on-chip LDO for consistent low-power operation |
| VDD / VSS | Main power supply / ground | Single 1.6–5.5 V rail powers entire device; no separate analog/digital supplies needed |
| P30 / TSCAP / RTC1HZ / SCL11 | Touch sense capacitor input / RTC output / I²C clock | Shared pin enables capacitive sensing, one-second RTC pulse, and I²C master/slave communication |
| P10–P12 / TS11–TS13 / SCK00 / SI00 / SO00 | Capacitive touch inputs / SPI interface | Three dedicated touch-sense pins plus full SPI functionality in same physical terminals |
| P20–P22 / ANI0–ANI2 / TS20 | Analog inputs / touch sense inputs | Combines ADC channels and CTSU sensing on shared pins-reduces BOM count in space-constrained designs |
| RESET / P40 / TOOLRxD / TOOLTxD | Reset input / debug interface | Integrated on-chip debug supports full SWD-style programming and real-time trace via two dedicated pins |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 200 nA current draw with RTC running; extends coin-cell battery life to >10 years in intermittent-sensing applications |
| SNOOZE mode sequencer (SMS) | Executes 32-step sensor polling sequences autonomously; eliminates CPU wake cycles and reduces average current by >60% |
| Integrated CTSU2La | Hardware-accelerated capacitive sensing engine with built-in noise rejection; achieves >80 dB common-mode noise immunity |
| Data flash with BGO | Background operation allows concurrent program execution and 1M-cycle data logging; enables firmware-over-the-air updates |
| Multi-voltage I/O | TTL-compatible inputs accept 1.8/2.5/3.0 V logic directly; removes need for external level translators in mixed-voltage systems |
| On-chip high-accuracy oscillator | ±1.0% frequency tolerance (1.8–5.5 V, -20–+85°C); eliminates external crystal for non-RTC timing-critical functions |
Applications
| Smart Thermostat Interface | Wireless Remote Control |
|---|---|
|
Use Scenario: Battery-powered wall-mounted thermostat with glass-touch panel and BLE connectivity. IC Role / Device Role / Timing Role: Main system controller managing capacitive touch UI, ambient temperature reading, and BLE subsystem wakeup coordination. Use Value: 200 nA STOP mode extends CR2032 battery life beyond 5 years; CTSU2La enables reliable touch detection through 3 mm glass overlay. |
Use Scenario: Sub-GHz RF remote with multi-function touch buttons and LED feedback. IC Role / Device Role / Timing Role: Touch sensing and RF transceiver coordinator; uses SMS to scan keys while keeping RF IC in deep sleep. Use Value: SNOOZE sequencer reduces average current to 1.2 µA during idle; 16-pin HWQFN fits compact 2-layer PCB with minimal decoupling. |
| Portable Medical Monitor | IoT Sensor Node |
|
Use Scenario: Handheld pulse oximeter with OLED display and touch navigation. IC Role / Device Role / Timing Role: System-on-chip handling analog front-end (ADC), touch UI, display driver, and low-power data logging. Use Value: Integrated 1.48 V reference and temperature sensor eliminate external components; 10-bit ADC resolves SpO₂ signal with <0.5% error. |
Use Scenario: Battery-operated environmental sensor node measuring temp/humidity/light with periodic LoRaWAN upload. IC Role / Device Role / Timing Role: Sensor aggregator and low-power scheduler; triggers ADC reads and radio transmission only upon threshold breach. Use Value: Background data flash writes preserve sensor history during radio transmission; 37.5 µA/MHz efficiency maximizes uptime per charge cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G4C2DNP#AA0 | Same package and pinout; 32 KB code flash, 2 KB data flash instead of 64/2 KB | Lower memory capacity limits firmware complexity; suitable for fixed-function devices with <32 KB code footprint | Select when application firmware size is confirmed ≤28 KB and no future feature expansion is planned |
| STM32L011K4T6 | ARM Cortex-M0+, 16 KB flash, 2 KB RAM, 12-pin TSSOP; lacks integrated CTSU and SNOOZE sequencer | Requires external touch controller and additional GPIO for equivalent touch capability; higher active current (110 µA/MHz) | Choose only if ARM toolchain compatibility is mandatory and touch channel count is ≤4 with simple proximity detection |
Compared with R7F102G4C2DNP#AA0, the R7F102G4E2DNP#AA0 provides double flash capacity for field-upgradable features; versus STM32L011K4T6, it delivers hardware-accelerated touch and autonomous low-power sequencing unattainable with software-only alternatives.
Availability
R7F102G4E2DNP#AA0 is available at Aetrix Electronics and suitable for smart home interfaces, portable medical monitors, and IoT sensor nodes requiring stable component supply across multi-year production cycles.
Supply support for R7F102G4E2DNP#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G22 product line targets cost-sensitive, ultra-low-power consumer and industrial applications where capacitive touch, long battery life, and small footprint are critical design constraints.
FAQ
What is the maximum operating frequency of the R7F102G4E2DNP#AA0?
The R7F102G4E2DNP#AA0 supports a maximum CPU operating frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, the minimum instruction execution time is 0.03125 µs. The device also supports lower-frequency modes-including 32.768 kHz for RTC operation-with automatic clock switching managed by firmware.
Does the R7F102G4E2DNP#AA0 include an integrated capacitive touch controller?
Yes, the R7F102G4E2DNP#AA0 integrates the CTSU2La (Capacitive Touch Sensing Unit version 2 Low-power Architecture), which supports both self- and mutual-capacitance methods. On the 16-pin variant, it enables up to 29 touch keys using dedicated TSxx pins and shared analog I/O resources.
What debug interface does the R7F102G4E2DNP#AA0 support?
The R7F102G4E2DNP#AA0 supports on-chip debugging via the TOOLRxD and TOOLTxD pins, implementing Renesas' standard serial wire debug (SWD)-compatible protocol. No external debug probe is required-programming and real-time tracing are enabled using these two pins and the RESET line.
Can the R7F102G4E2DNP#AA0 operate from a 1.8-V supply?
Yes, the R7F102G4E2DNP#AA0 operates across a 1.6–5.5 V supply range. At 1.8 V, all core functions-including 32 MHz operation, CTSU2La sensing, and 10-bit ADC conversion-remain fully specified and functional, enabling direct integration with 1.8-V logic families without level translation.
Is the R7F102G4E2DNP#AA0 pin-compatible with other RL78/G22 variants in HWQFN-16?
Yes, all RL78/G22 devices in the 16-pin HWQFN package-including R7F102G4C2DNP#AA0 and R7F102G4E2DNP#AA0-share identical pinout, electrical characteristics, and mechanical dimensions. Memory configuration (32 KB vs. 64 KB flash) is the sole functional difference between these orderable variants.
R7F102G4E2DNP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-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:
- 11
- 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 3x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102G4E2DNP#AA0 FAQ
1.How can I place an order for R7F102G4E2DNP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G4E2DNP#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 R7F102G4E2DNP#AA0 reliable?
The price and inventory of R7F102G4E2DNP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G4E2DNP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102G4E2DNP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G4E2DNP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G4E2DNP#AA0?
R7F102G4E2DNP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G4E2DNP#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 R7F102G4E2DNP#AA0?
For technical support, including R7F102G4E2DNP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G4E2DNP#AA0 requirements.
6.How does Aetrix verify that R7F102G4E2DNP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G4E2DNP#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 R7F102G4E2DNP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102G4E2DNP#AA0?
All R7F102G4E2DNP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G4E2DNP#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 R7F102G4E2DNP#AA0 part is unused and in its original packaging.
Return procedure for R7F102G4E2DNP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102G4E2DNP#AA0 Tags
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