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Renesas R7F102GAC2DSP#BA0
- Part No.:
- R7F102GAC2DSP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F102GAC2DSP#BA0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,240
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Product details
Overview
R7F102GAC2DSP#BA0 from Renesas is a 30-pin LSSOP-packaged RL78/G22 16-bit microcontroller with 32 KB code flash, 4 KB RAM, and integrated capacitive touch sensing for up to 29 keys. It operates from 1.6–5.5 V, achieves 37.5 µA/MHz active current and 200 nA STOP mode current, and supports UART, I²C, SPI, RTC, and 10-bit ADC - deployed in battery-powered human interface devices.
For engineers reviewing the R7F102GAC2DSP#BA0 datasheet, R7F102GAC2DSP#BA0 pinout, R7F102GAC2DSP#BA0 application, or R7F102GAC2DSP#BA0 equivalent, key selection criteria include its 30-pin LSSOP-300 package, -40°C to +85°C industrial temperature grade, 32 KB flash/4 KB RAM memory configuration, CTSU2La capacitive touch unit, and SNOOZE mode sequencer for ultra-low-power sensor polling without CPU wake-up.
Technical Context
The R7F102GAC2DSP#BA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 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 dedicated SNOOZE mode sequencer (SMS) that executes up to 32 programmable commands-including value comparison and arithmetic-enabling autonomous low-power sensor scanning without CPU, flash, or RAM activation.
Its peripheral set includes a 10-bit ADC with internal 1.48 V reference and temperature sensor, dual I²C interfaces (IICA0/IICA1), up to four UARTA channels (one with LIN support), and a 16-bit timer array unit (TAU) with 8 channels. The device uses the Event Link Controller (ELC) to trigger peripheral operations directly, reducing CPU intervention and interrupt latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low-energy operation at variable clock speeds. |
| Flash / RAM | 32 KB code flash + 2 KB data flash + 4 KB SRAM; supports background rewriting and boot swapping for robust firmware updates. |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; enables multi-year battery life in coin-cell-powered HMI applications. |
| Capacitive Sensing | CTSU2La unit supporting up to 29 self-capacitance keys or matrix mutual-capacitance configurations; no external components required. |
| Operating Voltage | 1.6 V to 5.5 V single supply; allows direct interfacing with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals without level shifters. |
| Temperature Range | -40°C to +85°C (industrial grade); qualified for use in thermostats, smart appliances, and industrial control panels. |
| Clock Sources | High-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz); low-speed 32.768 kHz oscillator with adjustability for RTC calibration. |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 300 mil, 0.65-mm pitch), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/TS11 | Primary SPI clock or I²C clock input; also serves as capacitive touch sensor channel TS11. |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | UART0 receive or SPI input or I²C data line; dual-role touch sensor TS12; supports debug communication. |
| P12 | SO00/TxD0/TOOLTxD/TS13 | UART0 transmit or SPI output; touch sensor TS13; debug transmit path for on-chip programming. |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | Interrupt input, touch sensor reference capacitor connection, RTC 1 Hz output, and secondary I²C clock. |
| P137 | INTP0 | Dedicated external interrupt pin with fast wake-up capability from STOP mode. |
| VDD / VSS | Power supply rails | Single 1.6–5.5 V supply; REGC pin requires 0.47–1 µF decoupling capacitor to VSS for stable internal regulator operation. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 preloaded commands (e.g., compare, add, jump) autonomously - enabling periodic sensor polling at sub-µA average current without CPU involvement. |
| Capacitive Touch Unit (CTSU2La) | Supports both self- and mutual-capacitance modes; eliminates need for external RC networks or dedicated touch controllers in space-constrained designs. |
| Event Link Controller (ELC) | Direct hardware linking of 20 event sources (e.g., timer overflow → ADC start) reduces software overhead and interrupt latency by up to 80% in real-time control loops. |
| Data Flash Background Operation | Enables concurrent program execution from flash while rewriting 2 KB data flash - critical for logging, parameter storage, and OTA update resilience. |
| Low-Power Real-Time Clock | RTC runs from 32.768 kHz subsystem clock with alarm, calendar (year/month/day/hour/min/sec), and ±1 ppm correction capability - independent of main CPU state. |
Applications
| Smart Thermostat Interface | Industrial Panel Controller |
|---|---|
Use Scenario: A wall-mounted HVAC thermostat with capacitive touch buttons, ambient temperature/humidity sensing, and wireless connectivity. IC Role / Device Role / Timing Role: R7F102GAC2DSP#BA0 serves as the primary HMI controller - managing touch detection, sensor readouts, display updates, and communication protocol handling. Use Value: Ultra-low STOP current (200 nA) extends CR2032 battery life beyond 5 years; integrated CTSU2La eliminates external touch IC BOM cost and PCB area. | Use Scenario: A DIN-rail mounted industrial control panel with push-button inputs, LED status indicators, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: R7F102GAC2DSP#BA0 acts as the local I/O manager - scanning discrete inputs, driving LEDs via GPIO, and executing Modbus slave stack on UARTA0. Use Value: 30-pin LSSOP package provides sufficient I/O (24 GPIO, 10 ADC channels) in compact footprint; -40°C to +85°C rating ensures reliability in unconditioned cabinet environments. |
| Portable Medical Monitor | Home Appliance Control Board |
Use Scenario: A handheld pulse oximeter with OLED display, optical sensor interface, and USB-C charging/power management. IC Role / Device Role / Timing Role: R7F102GAC2DSP#BA0 functions as the system supervisor - coordinating ADC sampling, touch navigation, display refresh, and power-state transitions. Use Value: 10-bit ADC with internal 1.48 V reference enables accurate analog front-end measurement without external voltage reference; SNOOZE mode sequences sensor reads during idle periods to minimize active time. | Use Scenario: A washing machine main control board requiring motor control signals, water-level sensing, user interface, and safety interlocks. IC Role / Device Role / Timing Role: R7F102GAC2DSP#BA0 serves as the appliance's central logic controller - interpreting keypad input, reading pressure/temperature sensors, and generating PWM for motor drivers. Use Value: Integrated 16-bit TAU timers provide precise PWM generation for BLDC motor control; built-in voltage detectors (LVD0/LVD1) enable brown-out protection without external supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GAE2DSP#BA0 | Same package and pinout; 64 KB code flash (vs. 32 KB), same 4 KB RAM and peripherals. | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed. | Select if additional flash headroom is required for bootloader, encryption, or field-upgradable features. |
| R7F102GAC3CSP#AA0 | Same 32 KB flash, 4 KB RAM, and peripherals; rated for -40°C to +105°C (industrial extended temp). | Suitable for applications operating above +85°C ambient, such as under-hood automotive or high-power industrial enclosures. | Choose for higher ambient temperature environments where extended thermal qualification is mandatory. |
Compared with R7F102GAE2DSP#BA0 and R7F102GAC3CSP#AA0, the R7F102GAC2DSP#BA0 offers optimal balance of cost, flash capacity, and industrial-grade temperature performance - making it ideal for cost-sensitive, battery-powered, or thermally moderate embedded HMI designs where 32 KB flash suffices and +85°C maximum ambient is sufficient.
Availability
R7F102GAC2DSP#BA0 is available at Aetrix Electronics and suitable for smart home interfaces, industrial HMI panels, portable medical devices, and appliance control systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R7F102GAC2DSP#BA0 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications, with annual revenue exceeding $10 billion.
The RL78/G22 product line targets ultra-low-power, cost-sensitive embedded control applications - emphasizing capacitive touch integration, intelligent power management (SNOOZE/STOP), and simplified development for consumer and industrial HMI systems.
FAQ
What is the maximum operating frequency of the R7F102GAC2DSP#BA0?
The R7F102GAC2DSP#BA0 supports a maximum operating frequency of 32 MHz using its high-speed on-chip oscillator. This yields a minimum instruction execution time of 0.03125 µs. Frequency selection is configurable across 10 discrete points (1–32 MHz), all with ±1.0% accuracy over 1.8–5.5 V and -20 to +85°C.
Does the R7F102GAC2DSP#BA0 support in-circuit debugging?
Yes, the R7F102GAC2DSP#BA0 supports full on-chip debugging via the TOOLRxD/TOOLTxD pins (P11/P12) using Renesas E2 or E2 Lite debuggers. It includes hardware breakpoints, watchpoints, and flash programming capability - all accessible through CS+ or e2 studio IDE without requiring external debug headers.
How many capacitive touch channels does the R7F102GAC2DSP#BA0 support?
The R7F102GAC2DSP#BA0 integrates the CTSU2La unit and supports up to 29 capacitive touch channels. It enables both self-capacitance (single-pin per key) and mutual-capacitance (transmit/receive pin pairs) configurations - with all necessary timing and signal processing handled internally.
What is the purpose of the REGC pin on the R7F102GAC2DSP#BA0?
The REGC pin on the R7F102GAC2DSP#BA0 connects to an external 0.47–1 µF ceramic capacitor to ground (VSS) to stabilize the internal voltage regulator. This capacitor is mandatory for reliable operation - failure to install it may cause erratic reset behavior, flash programming errors, or unstable CTSU2La performance.
Can the R7F102GAC2DSP#BA0 operate from a 1.8 V supply?
Yes, the R7F102GAC2DSP#BA0 is fully specified to operate from 1.6 V to 5.5 V. At 1.8 V, it supports all core functions including 32 MHz operation (with reduced timing margins), 10-bit ADC conversion, CTSU2La touch sensing, and STOP mode with 200 nA current - making it suitable for single-cell Li-ion or NiMH battery systems.
R7F102GAC2DSP#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G22
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- Capacitive Touch, LVD, POR, PWM, WDT
- Number of I/O:
- 25
- 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 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GAC2DSP#BA0 FAQ
1.How can I place an order for R7F102GAC2DSP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GAC2DSP#BA0 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 R7F102GAC2DSP#BA0 reliable?
The price and inventory of R7F102GAC2DSP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GAC2DSP#BA0 is usually 5 days.
3.What payment methods are accepted for R7F102GAC2DSP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GAC2DSP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GAC2DSP#BA0?
R7F102GAC2DSP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GAC2DSP#BA0 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 R7F102GAC2DSP#BA0?
For technical support, including R7F102GAC2DSP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GAC2DSP#BA0 requirements.
6.How does Aetrix verify that R7F102GAC2DSP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GAC2DSP#BA0 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 R7F102GAC2DSP#BA0 meets industry standards.
7.What is the process for return or replacement of R7F102GAC2DSP#BA0?
All R7F102GAC2DSP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GAC2DSP#BA0, 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 R7F102GAC2DSP#BA0 part is unused and in its original packaging.
Return procedure for R7F102GAC2DSP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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