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Renesas R7F102GEC3CNP#AA0
- Part No.:
- R7F102GEC3CNP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R7F102GEC3CNP#AA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:1,756
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Product details
Overview
R7F102GEC3CNP#AA0 from Renesas is a 40-pin HWQFN-packaged RL78/G22 16-bit microcontroller with 64 KB code flash, 4 KB RAM, and 2 KB data flash. It operates from 1.6 to 5.5 V, achieves 37.5 µA/MHz active current and 200 nA STOP mode current, and integrates up to 29 capacitive touch sensing channels - enabling ultra-low-power human-machine interface designs in industrial control panels.
For engineers reviewing the R7F102GEC3CNP#AA0 datasheet, R7F102GEC3CNP#AA0 pinout, R7F102GEC3CNP#AA0 application, or R7F102GEC3CNP#AA0 equivalent, key selection criteria include its 40-pin HWQFN (6 × 6 mm, 0.50-mm pitch) package, -40 to +105°C industrial temperature grade, 64 KB flash/4 KB RAM memory configuration, integrated CTSU2La capacitive touch unit, and support for UARTA, IICA, and SAU peripherals.
Technical Context
The R7F102GEC3CNP#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). It features a dedicated SNOOZE mode sequencer (SMS) that executes up to 32 low-power processes without CPU, flash, or RAM activation.
Its peripheral set includes an 8-/10-bit ADC with up to 10 analog inputs and internal 1.48 V reference, a real-time clock with alarm and correction, and a data transfer controller (DTC) supporting normal, repeat, and block transfer modes triggered by 20 configurable event sources via the Event Link Controller (ELC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and selectable instruction speed modes |
| Flash Memory | 64 KB code flash with 2 KB block size, security lock, and self-programming with boot swap |
| RAM & Data Flash | 4 KB on-chip RAM; 2 KB data flash with background operation (BGO) and 1M rewrite cycles |
| Operating Voltage | 1.6 V to 5.5 V supply range - supports direct interfacing with 1.8 V, 2.5 V, and 3.0 V external logic |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode current - enables battery-powered multi-year operation |
| Capacitive Sensing | CTSU2La unit supporting up to 29 keys via self- or mutual-capacitance methods, VDD = 1.8–5.5 V operation |
| Timers & RTC | Eight 16-bit timer channels; 32-bit interval timer; RTC with second-to-99-year counting, alarm, and correction |
Pinout & Package
Package: 40-pin HWQFN (6 × 6 mm, 0.50-mm pitch), exposed die pad recommended to be connected to VSS. Pin count and layout conform to PWQN0040KD-A footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40 | Debug Interface | TOOL0 signal for on-chip debugging and programming |
| RESET | System Reset | Active-low reset input with internal pull-up; accepts external reset assertion |
| P121 | Oscillator / Backup Supply | XT1 crystal input or VBAT backup supply pin for RTC retention |
| P122 | Oscillator | X2 crystal output or EXCLK external clock input |
| VDD / VSS | Power Supply | Dual power pins: VDD (1.6–5.5 V main supply), VSS (ground reference) |
| REGC | Regulator Decoupling | Connect 0.47–1 µF capacitor to VSS for internal LDO stability |
| P30 | RTC & Touch | TSCAP (touch sensor capacitor) and RTC1HZ output - critical for low-power timekeeping and CTSU operation |
| P10–P12, P14–P17 | Serial Interfaces | Multiplexed SCK00/SCL00, SI00/RxD0, SO00/TxD0, IICA, UARTA, and SAU functions |
| P20–P26, P00–P01, P147 | Analog Input / Touch | ANI0–ANI19 analog inputs and TSxx touch sense channels - up to 10 ADC channels and 29 CTSU nodes |
| P70–P73 | UARTA Expansion | KR0–KR3 and TxDA0/RxDA0 signals for UARTA with automatic baud rate detection and DMA support |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 preconfigured low-power operations (e.g., ADC sampling, CTSU scan, RTC check) without waking CPU or accessing flash/RAM |
| Capacitive Touch Unit (CTSU2La) | Supports both self-capacitance (1-pin/key) and mutual-capacitance (matrix) configurations - enables robust touch buttons/sliders at <200 µA average current |
| Data Transfer Controller (DTC) | Hardware-accelerated data movement between memory/peripherals using interrupt-triggered transfers - reduces CPU load and improves deterministic latency |
| Event Link Controller (ELC) | Direct hardware linkage of 20 peripheral events (e.g., timer overflow → ADC trigger → DTC start) - eliminates software polling and ISR overhead |
| High-Accuracy On-Chip Oscillators | ±1.0% accuracy across 1.8–5.5 V and -40 to +85°C for 32 MHz high-speed clock - eliminates external crystal for cost-sensitive timing-critical applications |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: A DIN-rail mounted control panel with 12 capacitive touch buttons, LED indicators, and RS-485 communication for factory floor equipment monitoring. IC Role / Device Role / Timing Role: R7F102GEC3CNP#AA0 serves as the primary system controller, executing touch scanning via CTSU2La, driving LEDs through GPIO, managing UARTA-to-RS485 transceiver, and maintaining real-time logging via RTC and data flash. Use Value: 200 nA STOP mode extends battery life during idle periods; 64 KB flash accommodates firmware updates and secure boot; 40-pin HWQFN provides sufficient I/O for parallel LED drivers and isolated comms interfaces. | Use Scenario: A wireless environmental sensor node measuring temperature, humidity, and air quality, powered by a coin cell and transmitting data via UART to a BLE module. IC Role / Device Role / Timing Role: R7F102GEC3CNP#AA0 acts as the sensor hub MCU - reading analog sensors via 10-channel ADC, performing calibration using internal 1.48 V reference, scheduling periodic wake-ups via RTC alarm, and transferring results via UARTA. Use Value: 37.5 µA/MHz active current minimizes energy per measurement cycle; BGO-enabled data flash allows over-the-air parameter updates without halting sensor acquisition; -40 to +105°C rating ensures reliability in uncontrolled enclosures. |
| Programmable Logic Controller (PLC) I/O Module | Energy Meter Front-End |
Use Scenario: A modular PLC base unit with digital input/output expansion, supporting 8 isolated dry-contact inputs and 4 open-drain outputs for machine safety interlocks. IC Role / Device Role / Timing Role: R7F102GEC3CNP#AA0 functions as the local intelligence layer - debouncing inputs via timer-based edge detection, generating precise PWM outputs, and communicating status via UARTA to the main PLC CPU. Use Value: ELC-configured timer-to-GPIO linking enables sub-microsecond response to input changes; 4 KB RAM buffers multiple I/O state snapshots; industrial temp grade (-40 to +105°C) matches DIN EN 61000-6-2 requirements. | Use Scenario: A Class 0.5S electricity meter front-end acquiring voltage/current waveforms via sigma-delta ADCs and computing RMS, harmonics, and energy totals. IC Role / Device Role / Timing Role: R7F102GEC3CNP#AA0 serves as the metrology co-processor - synchronizing sampling clocks via RTC, storing calibration coefficients in protected data flash, and communicating computed values via IICA to the main meter SoC. Use Value: 2 KB data flash with 1M write endurance retains lifetime calibration data; ±1.0% oscillator accuracy ensures stable sampling intervals; CTSU2La enables tamper-detection touch cover on meter housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GEE3CNP#AA0 | Same RL78/G22 family, identical 40-pin HWQFN package and 64 KB flash, but rated for consumer temperature range (-40 to +85°C) instead of industrial (-40 to +105°C) | Suitable for non-industrial environments where ambient temperature remains below 85°C; lacks extended thermal qualification for factory-floor deployment | Select R7F102GEE3CNP#AA0 only when full industrial temperature compliance is not required and cost optimization is prioritized |
| R7F102GBC3CNP#AA0 | 32-pin HWQFN variant with same 64 KB flash and industrial temperature grade, but reduced pin count (32 vs. 40) and fewer analog/touch channels (6 vs. 10 ADC inputs, 24 vs. 29 CTSU nodes) | Applicable where board space is constrained and I/O count is lower - e.g., compact thermostats or simple appliance controllers | Choose R7F102GBC3CNP#AA0 when design fits within 32-pin footprint and does not require >6 analog inputs or >24 touch keys |
Compared with R7F102GEE3CNP#AA0, the R7F102GEC3CNP#AA0 adds guaranteed operation up to +105°C and qualifies for industrial use cases; versus R7F102GBC3CNP#AA0, it delivers 8 additional I/O pins, 4 more ADC channels, and 5 extra CTSU nodes - directly enabling richer HMI and sensor integration without external expanders.
Availability
R7F102GEC3CNP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, programmable logic controller I/O modules, and energy meter front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7F102GEC3CNP#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G22 product line is engineered for ultra-low-power embedded control applications demanding high integration, robust capacitive touch capability, and industrial-grade reliability - targeting HMI, sensor hubs, and smart actuators.
FAQ
What is the operating temperature range specified for the R7F102GEC3CNP#AA0?
The R7F102GEC3CNP#AA0 is qualified for industrial applications with an operating ambient temperature range of -40°C to +105°C. This specification is explicitly defined in the device's ordering part number suffix "3" (per Figure 1-1 in R01DS0424EJ0120) and confirmed in Section 1.1 under "Operating ambient temperature". It ensures reliable operation in harsh environments such as factory automation controls and outdoor metering equipment.
Does the R7F102GEC3CNP#AA0 include an integrated capacitive touch sensing unit, and how many keys does it support?
Yes, the R7F102GEC3CNP#AA0 integrates the CTSU2La capacitive touch sensing unit, supporting up to 29 keys. As stated in Section 1.1 "Capacitive sensing unit", it operates across VDD = 1.8 to 5.5 V and supports both self-capacitance (single-pin per key) and mutual-capacitance (matrix) configurations. The 40-pin package provides sufficient TSxx pins (e.g., TS00–TS28, TS10–TS19) to realize the full 29-key capability without multiplexing compromises.
What are the memory resources allocated to the R7F102GEC3CNP#AA0, and are they configurable?
The R7F102GEC3CNP#AA0 contains 64 KB of code flash memory, 2 KB of data flash memory, and 4 KB of on-chip RAM. These values are fixed per the part number decoding in Table 1-1 (where "E" denotes 64 KB flash) and confirmed in Section 1.1 "Outline". The code flash supports security locking per 2 KB block; the data flash enables background operation (BGO) for concurrent execution and rewriting; no runtime reconfiguration of memory partitioning is supported.
Which serial communication interfaces are available on the R7F102GEC3CNP#AA0, and how many instances does each support?
The R7F102GEC3CNP#AA0 supports UARTA (up to 4 channels), I2C/Simplified I2C (up to 6 channels), and Simplified SPI (CSINote, up to 5 channels). Per Section 1.1 "Serial interface", these are implemented via the Serial Array Unit (SAU), IICA, and CSI peripherals. The 40-pin HWQFN package exposes dedicated pins (e.g., P10–P12 for SCK00/SI00/SO00; P60/P61 for SCLA0/SDAA0; P70–P73 for UARTA expansion) enabling full utilization of all channel counts.
How does the SNOOZE mode sequencer (SMS) function in the R7F102GEC3CNP#AA0, and what is its power benefit?
The SNOOZE mode sequencer (SMS) in the R7F102GEC3CNP#AA0 executes up to 32 predefined low-power operations - such as ADC conversions, CTSU scans, or RTC checks - without activating the CPU, flash, or RAM. As detailed in Section 1.1, this reduces system-level active current significantly. Its benefit is direct: enabling complex periodic sensing tasks at microamp-level average current, extending battery life in maintenance-free deployments while maintaining deterministic timing via hardware sequencing.
R7F102GEC3CNP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-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:
- 33
- 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 9x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GEC3CNP#AA0 FAQ
1.How can I place an order for R7F102GEC3CNP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GEC3CNP#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 R7F102GEC3CNP#AA0 reliable?
The price and inventory of R7F102GEC3CNP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GEC3CNP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GEC3CNP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GEC3CNP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GEC3CNP#AA0?
R7F102GEC3CNP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GEC3CNP#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 R7F102GEC3CNP#AA0?
For technical support, including R7F102GEC3CNP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GEC3CNP#AA0 requirements.
6.How does Aetrix verify that R7F102GEC3CNP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GEC3CNP#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 R7F102GEC3CNP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GEC3CNP#AA0?
All R7F102GEC3CNP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GEC3CNP#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 R7F102GEC3CNP#AA0 part is unused and in its original packaging.
Return procedure for R7F102GEC3CNP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GEC3CNP#AA0 Tags
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