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Renesas R7F102GAC3CSP#AA0
- Part No.:
- R7F102GAC3CSP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F102GAC3CSP#AA0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
R7F102GAC3CSP#AA0 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 V to 5.5 V, achieves 37.5 µA/MHz active current and 200 nA STOP mode current, and targets battery-powered HMI and industrial control applications.
For engineers reviewing the R7F102GAC3CSP#AA0 datasheet, R7F102GAC3CSP#AA0 pinout, R7F102GAC3CSP#AA0 application, or R7F102GAC3CSP#AA0 equivalent, key selection criteria include its 30-pin LSSOP-30 package, 32 KB flash/4 KB RAM configuration, CTSU2La-based touch support, RTC with alarm, and dual UART/I²C/SPI interface capability in an industrial-grade (-40°C to +105°C) device.
Technical Context
The R7F102GAC3CSP#AA0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs at 32 MHz high-speed mode or 30.5 µs at 32.768 kHz ultra-low-speed mode). It integrates a SNOOZE mode sequencer (SMS) supporting 32 sequential low-power operations without CPU involvement.
Peripheral integration includes a 10-bit A/D converter with up to 10 channels, 8-channel 16-bit timer array unit (TAU), real-time clock (RTC) with calendar and alarm, and event link controller (ELC) enabling direct peripheral-to-peripheral signal routing without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and selectable high/ultra-low speed execution modes |
| Memory | 32 KB code flash (2 KB block size), 2 KB data flash (1M rewrite cycles), 4 KB on-chip RAM |
| Power Performance | 37.5 µA/MHz operating current; 200 nA STOP mode current; HALT, STOP, and SNOOZE low-power modes |
| Operating Voltage | 1.6 V to 5.5 V supply range supports single-cell Li-ion, 3.3 V, and 5 V system designs |
| Capacitive Sensing | CTSU2La unit supporting up to 29 self-capacitance keys or matrix mutual-capacitance configurations |
| Temperature Range | -40°C to +105°C ambient operation (industrial grade, 3C marking) |
| Clock Sources | High-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz), low-speed 32.768 kHz oscillator with adjustability |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), JEDEC MS-012AC, RoHS-compliant, industrial temperature grade (-40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/TS11 | Primary SPI clock or I²C clock input; also serves as capacitive touch sensor channel 11 |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | Primary SPI input, UART0 receive, debug serial input, I²C data, or touch channel 12 |
| P12 | SO00/TxD0/TOOLTxD/TS13 | Primary SPI output, UART0 transmit, debug serial output, or touch channel 13 |
| P13 | TxD2/SO20/(SDAA0)/(TI04)/(TO04)/TS14 | UART2 transmit, secondary SPI output, optional SDAA0, or touch channel 14 |
| P14 | RxD2/SI20/SDA20/(SCLA0)/(TI03)/(TO03)/TS15 | UART2 receive, secondary SPI input, I²C data, or touch channel 15 |
| P15 | PCLBUZ1/SCK20/SCL20/(TI02)/(TO02)/TS16 | Buzzer output, secondary SPI clock, I²C clock, or touch channel 16 |
| P16 | TI01/TO01/INTP5/TS17/(RxD0) | Timer input/output, external interrupt 5, touch channel 17, or remapped UART0 receive |
| P17 | TI02/TO02/TS18/(TxD0) | Timer input/output, touch channel 18, or remapped UART0 transmit |
| P20 | ANI0/AVREFP | Analog input channel 0; positive reference voltage input for ADC |
| P21 | ANI1/AVREFM | Analog input channel 1; negative reference voltage input for ADC |
| P22 | ANI2/TS20 | Analog input channel 2 or capacitive touch sensor channel 20 |
| P23 | ANI3/TS21 | Analog input channel 3 or capacitive touch sensor channel 21 |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | External interrupt 3, touch sensor reference capacitor connection, RTC 1 Hz output, I²C clock, or SPI clock |
| P31 | TI03/TO03/INTP4/TS01/PCLBUZ0 | Timer input/output, external interrupt 4, touch channel 1, or buzzer output 0 |
| P40 | TOOL0 | Dedicated debug interface pin for on-chip debugging and programming |
| P50 | TS00/INTP1/SI11/SDA11 | Touch channel 0, external interrupt 1, SPI input, or I²C data |
| P51 | TS28/INTP2/SO11 | Touch channel 28, external interrupt 2, or SPI output |
| P60 | SCLA0 | I²C clock line for primary I²C interface |
| P61 | SDAA0 | I²C data line for primary I²C interface |
| P120 | ANI19 | Analog input channel 19 |
| P121 | X1/XT1 | Crystal oscillator input or external clock input (1–20 MHz) |
| P122 | X2/EXCLK/XT2/EXCLKS | Crystal oscillator output or external clock source selection |
| P137 | INTP0 | External interrupt 0 input |
| RESET | Reset Input | Active-low reset pin with internal pull-up; accepts both asynchronous and synchronous reset signals |
| REGC | Regulator Capacitor | Connects to VSS via 0.47–1 µF capacitor to stabilize internal voltage regulator |
| VDD | Power Supply | Main power supply input (1.6–5.5 V); powers core, peripherals, and I/O |
| VSS | Ground | Digital ground reference for all circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 200 nA STOP mode enables multi-year battery life in remote sensors and portable HMI devices |
| SNOOZE mode sequencer (SMS) | Executes up to 32 pre-programmed low-power operations (e.g., ADC sampling, comparison) without waking CPU or RAM |
| Capacitive touch sensing unit (CTSU2La) | Supports self-capacitance (29 keys) or mutual-capacitance matrix layouts with built-in noise rejection |
| Real-time clock (RTC) with calendar | Tracks time from one second to 99 years with alarm interrupt and hardware clock correction |
| Event Link Controller (ELC) | Enables 20 configurable peripheral-to-peripheral event links (e.g., timer overflow → ADC trigger) without CPU overhead |
| Background data flash rewriting | Allows program execution from flash while simultaneously rewriting data flash memory (BGO mode) |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled wall-mounted HVAC controller with temperature/humidity sensing and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing capacitive touch UI, analog sensor acquisition, RTC-based scheduling, and UART communication to Wi-Fi/BLE module. Use Value: 200 nA STOP mode extends battery life beyond 5 years; CTSU2La enables robust touch response across temperature ranges; integrated RTC eliminates external timekeeping IC. |
Use Scenario: Battery-powered vibration/temperature node in factory predictive maintenance systems. IC Role / Device Role / Timing Role: Low-power data acquisition engine performing scheduled ADC reads, timestamping via RTC, and UART-triggered data burst transmission. Use Value: SNOOZE mode sequencer autonomously samples sensors and triggers wake-up only when threshold exceeded; 37.5 µA/MHz efficiency minimizes energy per measurement cycle. |
| Programmable Power Outlet | Medical Patient Monitor Panel |
|
Use Scenario: UL-certified smart outlet with load monitoring, scheduling, and touch-sensitive controls. IC Role / Device Role / Timing Role: System-on-chip handling touch UI, real-time load current sampling (via shunt + ADC), RTC-based timer events, and isolated UART to power controller. Use Value: Dual UART interfaces enable simultaneous host command channel and isolated telemetry path; 32 KB flash accommodates secure firmware updates and feature-rich UI logic. |
Use Scenario: Bedside patient monitor with touch interface, vital sign inputs, and alarm management. IC Role / Device Role / Timing Role: Safety-critical HMI controller managing capacitive touch buttons, analog ECG/SpO₂ front-end interfacing, RTC-driven alarm timing, and RS-232 medical device interconnect. Use Value: -40°C to +105°C rating ensures reliability in clinical environments; hardware RTC alarm guarantees timely critical alerts independent of software state. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GAE3CSP#AA0 | 64 KB code flash, same 30-pin LSSOP package and peripheral set | Required for applications needing larger firmware footprint (e.g., OTA update stack + full GUI) | Select when >32 KB flash is needed; identical pinout and thermal profile enable drop-in upgrade |
| R7F102GBC3CNP#AA0 | 32-pin HWQFN (5×5 mm), adds P62 and P70–P73 pins; same memory and core | Preferred where board space constraints favor QFN over LSSOP or additional GPIO/touch channels are required | Choose for higher I/O density or improved thermal performance; requires PCB redesign due to different package and pin count |
Compared with R7F102GAC3CSP#AA0, the R7F102GAE3CSP#AA0 provides immediate flash scalability without layout change, while the R7F102GBC3CNP#AA0 trades package form factor for expanded peripheral routing and thermal dissipation-both retain identical industrial temperature rating and CTSU2La touch capability.
Availability
R7F102GAC3CSP#AA0 is available at Aetrix Electronics and suitable for industrial HMI, battery-powered sensor nodes, programmable power outlets, and medical panel applications requiring stable component supply and long-term lifecycle support.
Supply support for R7F102GAC3CSP#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G22 product line delivers true low-power 16-bit MCU performance for cost-sensitive, battery-operated, and industrial HMI applications-emphasizing ultra-low active/standby current, integrated capacitive touch, and robust industrial temperature operation.
FAQ
What is the maximum operating frequency of the R7F102GAC3CSP#AA0?
The R7F102GAC3CSP#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 operation down to 32.768 kHz for ultra-low-power RTC and background tasks, with corresponding timing adjustments in the RL78 core.
Does the R7F102GAC3CSP#AA0 support hardware debugging during development?
Yes, the R7F102GAC3CSP#AA0 includes on-chip debugging capability via dedicated TOOL0 (P40) and TOOLRxD/TOOLTxD (P11/P12) pins. It supports full breakpoint, step-through, and memory inspection functionality using Renesas E2 or E2 Lite debuggers, and is compatible with CS+ and e2 studio IDEs without requiring external debug probes.
How many capacitive touch channels does the R7F102GAC3CSP#AA0 support?
The R7F102GAC3CSP#AA0 integrates the CTSU2La capacitive touch sensing unit, supporting up to 29 self-capacitance keys or configurable mutual-capacitance matrices. Touch channels are mapped across multiple pins including TS00–TS28, with dedicated TSCAP (P30) and internal charge pump enabling robust operation from 1.8 V to 5.5 V supply.
What is the purpose of the REGC pin on the R7F102GAC3CSP#AA0?
The REGC pin on the R7F102GAC3CSP#AA0 connects to the internal voltage regulator's stabilization capacitor. It must be tied to VSS through a 0.47 µF to 1 µF ceramic capacitor to ensure stable operation of the on-chip regulator, especially during low-power mode transitions and high-current peripheral activation. Omission causes erratic reset behavior or failure to enter STOP mode reliably.
Can the R7F102GAC3CSP#AA0 operate from a 1.8 V supply?
Yes, the R7F102GAC3CSP#AA0 is fully specified to operate across 1.6 V to 5.5 V, including 1.8 V nominal supply. At 1.8 V, it supports up to 16 MHz CPU operation (per datasheet DC characteristics), retains full peripheral functionality-including CTSU2La touch sensing, RTC, and UART-and maintains -40°C to +105°C industrial temperature rating without derating.
R7F102GAC3CSP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- 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:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GAC3CSP#AA0 FAQ
1.How can I place an order for R7F102GAC3CSP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GAC3CSP#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 R7F102GAC3CSP#AA0 reliable?
The price and inventory of R7F102GAC3CSP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GAC3CSP#AA0 is usually 5 days.
3.What payment methods are accepted for R7F102GAC3CSP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GAC3CSP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GAC3CSP#AA0?
R7F102GAC3CSP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GAC3CSP#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 R7F102GAC3CSP#AA0?
For technical support, including R7F102GAC3CSP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GAC3CSP#AA0 requirements.
6.How does Aetrix verify that R7F102GAC3CSP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GAC3CSP#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 R7F102GAC3CSP#AA0 meets industry standards.
7.What is the process for return or replacement of R7F102GAC3CSP#AA0?
All R7F102GAC3CSP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GAC3CSP#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 R7F102GAC3CSP#AA0 part is unused and in its original packaging.
Return procedure for R7F102GAC3CSP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GAC3CSP#AA0 Tags
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