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Renesas R7F102GCE3CLA#AC0
- Part No.:
- R7F102GCE3CLA#AC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 36-WFLGA
- Datasheet:
-
R7F102GCE3CLA#AC0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:1,821
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Product details
Overview
R7F102GCE3CLA#AC0 from Renesas is a 36-pin WFLGA-packaged RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and integrated capacitive touch sensing supporting up to 29 keys. It operates from 1.6 V to 5.5 V, achieves 37.5 µA/MHz active current and 200 nA STOP-mode current, and targets ultra-low-power industrial HMI applications such as smart thermostats and sensor nodes.
For engineers reviewing the R7F102GCE3CLA#AC0 datasheet, R7F102GCE3CLA#AC0 pinout, R7F102GCE3CLA#AC0 application, or R7F102GCE3CLA#AC0 equivalent, key selection criteria include its 36-pin WFLGA (4 × 4 mm, 0.50-mm pitch) package, -40 to +105°C industrial temperature grade, CTSU2La capacitive touch unit, RTC with alarm, and dual I²C/Simplified I²C interfaces for sensor hub integration.
Technical Context
The R7F102GCE3CLA#AC0 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 (TAU) with 8 channels, real-time clock with 99-year calendar and correction, and event link controller (ELC) enabling direct peripheral-to-peripheral signal routing without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Memory | 32 KB code flash (2 KB block size), 2 KB data flash, 4 KB RAM |
| Operating Voltage | 1.6 V to 5.5 V - supports direct interface with 1.8/2.5/3.0 V peripherals |
| Power Consumption | 37.5 µA/MHz active, 200 nA STOP mode - enables battery life >10 years in sensor wake-on-touch designs |
| Capacitive Touch | CTSU2La unit supporting 29 self-capacitance keys or matrix mutual-capacitance - no external components required |
| Timers & RTC | 8-channel 16-bit TAU, 32-bit interval timer, RTC with alarm interrupt and ±1 ppm correction capability |
| Communications | 2–6 I²C/Simplified I²C channels, 1–4 UARTA (LIN-supported), 1–5 CSI - enables multi-sensor I²C bus and LIN gateway functions |
Pinout & Package
Package: 36-pin WFLGA (4 × 4 mm, 0.50-mm pitch), industrial-grade (-40 to +105°C), tray packaging (#AC0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/TS11 | I²C clock or SPI clock input; also serves as capacitive touch channel TS11 |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | I²C data or SPI input or UART receive; debug RX; touch channel TS12 |
| P12 | SO00/TxD0/TOOLTxD/TS13 | I²C data or SPI output or UART transmit; debug TX; touch channel TS13 |
| P13 | TxD2/SO20/(SDAA0)/(TI04)/(TO04)/TS14 | Secondary UART transmit or SPI output; assignable to touch channel TS14 |
| P14 | RxD2/SI20/SDA20/(SCLA0)/(TI03)/(TO03)/TS15 | Secondary UART receive or SPI input or I²C data; assignable to touch channel TS15 |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | Interrupt input, touch sensor reference capacitor connection, RTC 1 Hz output, I²C clock |
| P60 | SCLA0 | Dedicated I²C clock line for primary I²C interface |
| P61 | SDAA0 | Dedicated I²C data line for primary I²C interface |
| P121 | X1/XT1 | Main crystal oscillator input (1–20 MHz) or sub-oscillator input (32.768 kHz) |
| P122 | X2/EXCLK/XT2/EXCLKS | Main crystal oscillator output or external clock input |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply; REGC requires 0.47–1 µF bypass capacitor to VSS |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external reset ICs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 200 nA consumption with RTC running - enables decade-scale battery operation in maintenance-free IoT nodes |
| SNOOZE mode sequencer (SMS) | Executes 32-step touch-sensing or sensor-read sequences autonomously - eliminates CPU wakeups and reduces average current by >90% |
| Capacitive Touch Unit (CTSU2La) | Hardware-accelerated self/mutual capacitance sensing on up to 29 pins - supports waterproof overlay and proximity detection without firmware overhead |
| Data flash background operation (BGO) | Execute code from flash while rewriting 2 KB data flash - enables seamless firmware updates and logging without system interruption |
| Event Link Controller (ELC) | Direct hardware linking of 20 peripheral events (e.g., ADC end → DMA trigger) - removes ISR latency and CPU load in real-time control loops |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted HVAC controller with glass touch panel, ambient temperature/humidity sensing, and wireless reporting. IC Role / Device Role / Timing Role: Main MCU managing capacitive touch UI, 10-channel ADC for environmental sensors, RTC for scheduling, and UART/LIN for HVAC bus communication. Use Value: 200 nA STOP current extends CR2032 battery life beyond 5 years; CTSU2La supports wet-finger operation through 3 mm glass. | Use Scenario: Battery-powered vibration/temperature monitor mounted on factory motors, transmitting alerts via LoRaWAN. IC Role / Device Role / Timing Role: Low-power sensor aggregator with accelerometer interface (I²C), internal temperature sensor, RTC-triggered wakeups, and UART to transceiver. Use Value: SNOOZE sequencer reads sensor, processes threshold logic, and wakes radio only on event - cuts average current to 1.2 µA. |
| Programmable Logic Controller (PLC) I/O Module | Medical Patient Monitor Front Panel |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Communication controller handling UART-to-RS485 translation, GPIO management, and watchdog supervision. Use Value: Dual UARTA channels support simultaneous Modbus master/slave; 1.6–5.5 V range simplifies power design across 3.3 V logic and 5 V field-side isolation. | Use Scenario: Touch-enabled bedside vital signs display with ECG front-end interface and audio alerts. IC Role / Device Role / Timing Role: HMI processor driving capacitive buttons, buzzer output (PCLBUZ0/1), ADC for lead-off detection, and I²C to display driver. Use Value: Integrated PCLBUZ0/1 timers generate precise audio tones without CPU; 10-bit ADC resolves microvolt-level ECG signals with internal reference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GCC3CLA#AC0 | Same 36-pin WFLGA package and 32 KB flash, but rated for consumer temp range (-40 to +85°C) instead of industrial (-40 to +105°C) | Not qualified for extended-temperature industrial enclosures or under-hood automotive use | Select R7F102GCC3CLA#AC0 only if operating ambient stays below +85°C and cost sensitivity outweighs thermal margin |
| R7F102GEE3CFP#AA0 | 64 KB flash, 40-pin LQFP (7 × 7 mm, 0.80-mm pitch), same industrial temp grade but larger footprint and higher pin count | Provides additional UART, I²C, and timer resources; suited for designs requiring future firmware expansion or more peripherals | Choose R7F102GEE3CFP#AA0 when memory headroom or pin availability is critical; avoid if board space or WFLGA assembly capability is constrained |
Compared with R7F102GCC3CLA#AC0, the R7F102GCE3CLA#AC0 offers guaranteed operation up to +105°C for harsh environments, while R7F102GEE3CFP#AA0 trades compact WFLGA packaging for greater memory and peripheral scalability in less space-constrained designs.
Availability
R7F102GCE3CLA#AC0 is available at Aetrix Electronics and suitable for industrial HMI, battery-powered sensor nodes, programmable logic controller modules, and medical front-panel applications requiring stable component supply across long production lifecycles.
Supply support for R7F102GCE3CLA#AC0 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 industrial, automotive, and enterprise markets.
The RL78/G22 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, energy-constrained applications requiring robust capacitive touch, rich analog integration, and industrial temperature reliability.
FAQ
What is the maximum operating temperature rating for the R7F102GCE3CLA#AC0?
The R7F102GCE3CLA#AC0 is rated for industrial operation from -40°C to +105°C ambient temperature, as confirmed by Renesas datasheet R01DS0424EJ0120 Rev.1.20 Section 1.1. This makes it suitable for deployment in enclosed control cabinets, motor drives, and other thermally demanding environments where standard consumer-grade MCUs would fail.
Does the R7F102GCE3CLA#AC0 support hardware-accelerated capacitive touch sensing?
Yes, the R7F102GCE3CLA#AC0 integrates the CTSU2La capacitive touch sensing unit, enabling self-capacitance operation on up to 29 pins or mutual-capacitance matrix configurations without external components. The unit operates independently of the CPU and supports automatic drift compensation, as detailed in Section 1.1 of the R7F102GCE3CLA#AC0 datasheet.
What package type and dimensions does the R7F102GCE3CLA#AC0 use?
The R7F102GCE3CLA#AC0 uses a 36-pin WFLGA package measuring 4 mm × 4 mm with 0.50-mm pitch, per Renesas ordering information in Table 1-1 and pin configuration diagram on Page 18 of R01DS0424EJ0120. The #AC0 suffix specifically denotes tray packaging for this WFLGA variant.
How much code flash and RAM does the R7F102GCE3CLA#AC0 include?
The R7F102GCE3CLA#AC0 contains 32 KB of code flash memory organized in 2 KB blocks, 2 KB of data flash memory supporting background operation, and 4 KB of on-chip RAM. These values are explicitly listed in the RL78/G22 memory table on Page 3 and confirmed in Section 1.1 "Features" of the official datasheet.
Can the R7F102GCE3CLA#AC0 operate from a single 3.3 V supply?
Yes, the R7F102GCE3CLA#AC0 supports operation from 1.6 V to 5.5 V, fully covering standard 3.3 V systems. Its I/O pins tolerate mixed-voltage interfaces (1.8 V, 2.5 V, 3.0 V), and internal voltage regulators maintain stable core operation across this range - all verified in Section 1.1 "Ultra-low power consumption technology" of the datasheet.
R7F102GCE3CLA#AC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 36-WFLGA
- 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:
- 31
- 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 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GCE3CLA#AC0 FAQ
1.How can I place an order for R7F102GCE3CLA#AC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GCE3CLA#AC0 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 R7F102GCE3CLA#AC0 reliable?
The price and inventory of R7F102GCE3CLA#AC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GCE3CLA#AC0 is usually 5 days.
3.What payment methods are accepted for R7F102GCE3CLA#AC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GCE3CLA#AC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GCE3CLA#AC0?
R7F102GCE3CLA#AC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GCE3CLA#AC0 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 R7F102GCE3CLA#AC0?
For technical support, including R7F102GCE3CLA#AC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GCE3CLA#AC0 requirements.
6.How does Aetrix verify that R7F102GCE3CLA#AC0 is sourced from the original manufacturer or authorized distributors?
All R7F102GCE3CLA#AC0 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 R7F102GCE3CLA#AC0 meets industry standards.
7.What is the process for return or replacement of R7F102GCE3CLA#AC0?
All R7F102GCE3CLA#AC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GCE3CLA#AC0, 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 R7F102GCE3CLA#AC0 part is unused and in its original packaging.
Return procedure for R7F102GCE3CLA#AC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GCE3CLA#AC0 Tags
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