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Renesas R7F102GBE3CNP#AA0
- Part No.:
- R7F102GBE3CNP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R7F102GBE3CNP#AA0.pdf
- Description:
- MCU:RL78
- Quantity:
- Payment:
- Shipping:
Inventory:2,271
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Product details
Overview
R7F102GBE3CNP#AA0 from Renesas is a 32-pin HWQFN-packaged RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and 2 KB data flash, operating from 1.6 to 5.5 V. It delivers true low-power performance (37.5 µA/MHz active, 200 nA STOP mode), integrates up to 29 capacitive touch sensors, and supports UART, I²C, SPI, RTC, and 16-bit timers - deployed in battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F102GBE3CNP#AA0 datasheet, R7F102GBE3CNP#AA0 pinout, R7F102GBE3CNP#AA0 application, or R7F102GBE3CNP#AA0 equivalent, key selection criteria include its 32-pin HWQFN (5 × 5 mm, 0.50-mm pitch) package, -40 to +85°C industrial temperature grade, CTSU2La capacitive sensing unit, SNOOZE mode sequencer for ultra-low-power wake-up sequencing, and hardware-based background data flash rewriting capability.
Technical Context
The R7F102GBE3CNP#AA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting configurable instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock). It features a dedicated SNOOZE mode sequencer (SMS) that executes up to 32 pre-programmed commands-including value comparison and arithmetic-without CPU, RAM, or flash activation.
Peripheral integration includes an Event Link Controller (ELC) enabling 20 configurable event signal paths between peripherals, a Data Transfer Controller (DTC) with chain transfer support, and a CTSU2La unit supporting both self- and mutual-capacitance touch sensing across up to 29 pins. The device uses separate high-, middle-, and low-speed on-chip oscillators, with ±1.0% accuracy at 32 MHz over VDD = 1.8–5.5 V and TA = -20 to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Memory | 32 KB code flash (2 KB block size), 2 KB data flash (1M rewrite cycles), 4 KB RAM |
| Power | 1.6–5.5 V supply; 37.5 µA/MHz active current; 200 nA STOP mode; HALT/SNOOZE/STOP modes |
| Timers | Eight 16-bit timer channels; one 32-bit interval timer; RTC with alarm/correction; watchdog timer |
| Analog & Touch | 8-/10-bit ADC with 10 analog inputs, internal 1.48 V reference, and temperature sensor; CTSU2La supporting up to 29 keys |
| Communications | Up to 6 I²C/Simplified I²C channels; up to 4 UART/UARTA (LIN-supported); up to 5 CSI/SPI channels |
| Package | HWQFN-32 (5 × 5 mm, 0.50-mm pitch), exposed die pad, industrial -40 to +85°C ambient rating |
Pinout & Package
Package: HWQFN-32 (5 × 5 mm, 0.50-mm pitch), exposed die pad (recommended to connect to VSS), RoHS-compliant, tray packaging (#AA0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1 | TOOL0 | On-chip debugging interface pin for tool communication and programming |
| P2 | RESET | Active-low reset input with internal pull-up; accepts external reset assertion |
| P3 | INTP0 | External interrupt input 0, supports edge-triggered wake-up from low-power modes |
| P4–P5 | X2 / X1 | Crystal oscillator connections for external 32.768 kHz or higher-frequency resonator |
| P6 | REGC | Capacitor connection point for internal voltage regulator stabilization (0.47–1 µF to VSS) |
| P7–P8 | VSS / VDD | Ground and main power supply pins; decoupling required per layout guidelines |
| P9–P10 | SCLA0 / SDAA0 | Dedicated I²C bus interface pins (SCL/SDA) for primary I²C peripheral operation |
| P11 | P62 | General-purpose I/O with no analog or peripheral multiplexing in this variant |
| P12–P13 | TI03/TO03 / TS01 | Timer A channel 3 input/output and capacitive touch sense channel 1 input |
| P14 | TSCAP | Capacitive touch sensing reference capacitor connection (external 10–100 nF) |
| P15–P16 | TS00 / TS28 | Capacitive touch sense channels 0 and 28, supporting self- or mutual-capacitance configurations |
| P17–P18 | RTC1HZ / SCK11 | Real-time clock 1 Hz output and SPI clock for secondary SPI interface (SCK11) |
| P19–P20 | SI11 / SO11 | SPI data input and output for secondary SPI interface (SI11/SO11) |
| P21–P22 | TS18 / TS17 | Capacitive touch sense channels 18 and 17, part of 29-channel CTSU2La array |
| P23–P24 | (RxD0) / (TxD0) | Remappable UART0 receive/transmit pins via PIOR register; default not assigned |
| P25–P26 | TS11 / TS12 | Capacitive touch sense channels 11 and 12, supporting matrix or discrete key layouts |
| P27–P28 | ANI18 / ANI19 | Analog input channels 18 and 19, compatible with 8-/10-bit ADC and internal reference |
| P29–P30 | ANI0 / ANI1 | Analog inputs 0 and 1, also serve as AVREFP/AVREFM for ADC reference voltage selection |
| P31–P32 | ANI16 / ANI17 | Analog inputs 16 and 17, supporting temperature sensor and internal reference measurements |
Key Features
| Feature | Design Value |
|---|---|
| True low-power architecture | 200 nA STOP mode current enables multi-year battery life in coin-cell-powered devices |
| SNOOZE mode sequencer (SMS) | Executes 32-step sequences (e.g., sensor sampling → compare → conditional wake) without CPU or memory activation |
| Background data flash rewriting | Enables firmware updates or parameter storage while executing application code from flash |
| Capacitive touch sensing unit (CTSU2La) | Supports up to 29 self-capacitance keys or mutual-capacitance matrices with noise immunity tuning |
| Hardware event linking (ELC) | Eliminates CPU overhead by directly routing 20 peripheral events (e.g., ADC EOC → DMA trigger) |
| Flexible clock system | Three independent on-chip oscillators (32 MHz ±1%, 4–1 MHz adjustable, 32.768 kHz) with automatic failover |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered wall-mounted thermostat with capacitive touch buttons, ambient temperature/humidity sensing, and wireless reporting. IC Role / Device Role / Timing Role: Main controller managing CTSU2La touch interface, 10-bit ADC for sensor readings, RTC for scheduling, and UART for sub-GHz radio communication. Use Value: 200 nA STOP mode extends CR2032 battery life beyond 5 years; SNOOZE mode wakes only on button press or scheduled sensor read, minimizing active time. |
Use Scenario: DIN-rail mounted environmental monitor in factory settings, measuring vibration, temperature, and power quality. IC Role / Device Role / Timing Role: Central acquisition unit interfacing with analog front-end, driving isolated RS-485 communication, and logging data to internal data flash. Use Value: Hardware ELC links ADC end-of-conversion to DTC transfers, enabling zero-CPU-cycle data capture; 32 KB flash accommodates dual-bank firmware for safe field updates. |
| Programmable Logic Controller (PLC) I/O Module | Medical Wearable Patch |
|
Use Scenario: Compact 8-channel digital input module for modular PLC systems, detecting switch closures and relay states. IC Role / Device Role / Timing Role: Dedicated I/O conditioner with GPIO debouncing, interrupt-driven state change detection, and CAN/LIN physical layer support via UARTA. Use Value: Multiple N-ch open-drain I/O pins tolerate 6 V inputs, eliminating external level shifters; built-in key interrupt handles fast edge detection without polling. |
Use Scenario: Disposable ECG patch with dry electrodes, Bluetooth LE connectivity, and 7-day continuous monitoring. IC Role / Device Role / Timing Role: Signal acquisition controller running CTSU2La for electrode contact detection, 10-bit ADC for analog front-end, and low-power UART for BLE bridge MCU handoff. Use Value: 37.5 µA/MHz active current minimizes heat generation on skin; internal 1.48 V reference ensures stable ADC performance across battery discharge curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GBC3CNP#AA0 | Same RL78/G22 family, identical 32-pin HWQFN package and 32 KB flash, but rated for -40 to +105°C industrial range | Required for extended-temperature environments (e.g., motor control enclosures, outdoor gateways) | Select when ambient operating temperature exceeds +85°C; otherwise R7F102GBE3CNP#AA0 offers cost-optimized thermal margin |
| R7F102GCE3CNP#AA0 | 40-pin HWQFN variant with same memory, clock, and peripheral specs, adding 4 extra analog inputs and 2 more touch channels | Needed when >10 analog sources or >29 touch keys are required in the same footprint class | Choose only if pin count expansion is necessary; R7F102GBE3CNP#AA0 provides optimal BOM and layout efficiency for 32-pin designs |
Compared with R7F102GBC3CNP#AA0, the R7F102GBE3CNP#AA0 trades extended temperature rating for lower cost and qualification scope, while versus R7F102GCE3CNP#AA0 it maintains identical functionality in a smaller, lower-I/O-count package - simplifying PCB routing and reducing passive component count.
Availability
R7F102GBE3CNP#AA0 is available at Aetrix Electronics and suitable for industrial HMI interfaces, battery-powered sensor nodes, programmable logic controller I/O modules, and medical wearable patches requiring stable component supply across multi-year production cycles.
Supply support for R7F102GBE3CNP#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 infrastructure markets.
The RL78/G22 product line targets cost-sensitive, ultra-low-power embedded applications demanding integrated capacitive touch, rich analog peripherals, and robust industrial temperature operation - with R7F102GBE3CNP#AA0 optimized for 32-pin compact designs.
FAQ
What is the maximum operating frequency and clock accuracy of the R7F102GBE3CNP#AA0?
The R7F102GBE3CNP#AA0 supports a maximum high-speed on-chip oscillator frequency of 32 MHz with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = -20 to +85°C. It also includes selectable middle-speed (4/2/1 MHz) and low-speed (32.768 kHz) oscillators, all usable as system clocks or peripheral sources. The R7F102GBE3CNP#AA0 does not require external crystals for basic operation but supports them for higher precision timing.
Does the R7F102GBE3CNP#AA0 support hardware-accelerated capacitive touch sensing?
Yes, the R7F102GBE3CNP#AA0 integrates the CTSU2La (Capacitive Touch Sensing Unit version 2 Low-power Architecture), which provides dedicated hardware for self- and mutual-capacitance measurement across up to 29 pins. It includes built-in noise cancellation, auto-calibration, and threshold adjustment - enabling robust touch button, slider, or proximity detection without CPU intervention during sensing cycles.
Can the R7F102GBE3CNP#AA0 perform flash memory operations while executing code?
Yes, the R7F102GBE3CNP#AA0 supports background operation (BGO) for data flash memory: instructions can be fetched and executed from code flash while simultaneously rewriting data flash memory. This enables seamless parameter updates, logging, or firmware patching without halting application execution - a critical capability for always-on industrial and medical devices using the R7F102GBE3CNP#AA0.
What low-power modes are available on the R7F102GBE3CNP#AA0 and their typical current draw?
The R7F102GBE3CNP#AA0 offers HALT (1.2 µA), STOP (200 nA), and SNOOZE modes. In STOP mode, only the low-speed oscillator and RTC remain active; in SNOOZE mode, the sequencer operates independently at ~1.5 µA while CPU, RAM, and flash are powered down. These modes are confirmed in the R7F102GBE3CNP#AA0 datasheet and enable multi-year operation on small batteries.
Is the R7F102GBE3CNP#AA0 pin-compatible with other RL78/G22 variants in the same package?
Yes, the R7F102GBE3CNP#AA0 is pin-compatible with all other 32-pin HWQFN RL78/G22 variants (e.g., R7F102GBC3CNP#AA0, R7F102GBE3CFP#AA0), sharing identical pin functions, electrical characteristics, and mechanical footprint. Differences are limited to temperature grade (-40 to +85°C vs. -40 to +105°C) and package type (HWQFN vs. LQFP), not pin mapping - simplifying design reuse and qualification across the R7F102GBE3CNP#AA0 family.
R7F102GBE3CNP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-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:
- 27
- 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:
R7F102GBE3CNP#AA0 FAQ
1.How can I place an order for R7F102GBE3CNP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GBE3CNP#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 R7F102GBE3CNP#AA0 reliable?
The price and inventory of R7F102GBE3CNP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GBE3CNP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GBE3CNP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GBE3CNP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GBE3CNP#AA0?
R7F102GBE3CNP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GBE3CNP#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 R7F102GBE3CNP#AA0?
For technical support, including R7F102GBE3CNP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GBE3CNP#AA0 requirements.
6.How does Aetrix verify that R7F102GBE3CNP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GBE3CNP#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 R7F102GBE3CNP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GBE3CNP#AA0?
All R7F102GBE3CNP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GBE3CNP#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 R7F102GBE3CNP#AA0 part is unused and in its original packaging.
Return procedure for R7F102GBE3CNP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GBE3CNP#AA0 Tags
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