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Renesas R7F102GAC2DSP#HA0
- Part No.:
- R7F102GAC2DSP#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F102GAC2DSP#HA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 30LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:3,810
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Product details
Overview
R7F102GAC2DSP#HA0 from Renesas is a 30-pin 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 R7F102GAC2DSP#HA0 datasheet, R7F102GAC2DSP#HA0 pinout, R7F102GAC2DSP#HA0 application, or R7F102GAC2DSP#HA0 equivalent, key selection criteria include its LSSOP-30 package, -40°C to +85°C temperature grade, 32 KB flash capacity, CTSU2La capacitive sensing unit, and SNOOZE mode sequencer for ultra-low-power wake-up control without CPU involvement.
Technical Context
The R7F102GAC2DSP#HA0 implements the RL78 CPU core with a 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 (SMS) executes up to 32 preconfigured commands-including timer comparisons and ADC sampling-without waking the CPU, flash, or RAM.
It features dual-clock domain operation: a high-accuracy ±1.0% on-chip oscillator (1–32 MHz) and a 32.768 kHz subsystem clock for RTC and low-power timing. Peripheral integration includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with block/chain transfer, and CTSU2La supporting both self- and mutual-capacitance touch sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and low-energy per instruction. |
| Flash Memory | 32 KB code flash + 2 KB data flash; supports background rewriting (BGO) and flash shield window for secure firmware updates. |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; enables multi-year battery life in intermittent-sensing applications. |
| Capacitive Sensing | CTSU2La unit supporting up to 29 keys via self-capacitance or matrix mutual-capacitance; eliminates external touch controller IC. |
| Timers & RTC | Eight 16-bit TAU channels + one 32-bit interval timer + dedicated RTC with alarm and clock correction; provides precise timekeeping and event scheduling. |
| Operating Voltage | 1.6 V to 5.5 V single-supply operation; allows direct interface with Li-ion, coin-cell, or 3.3/5 V system rails without level-shifting. |
| Temperature Range | -40°C to +85°C ambient; qualified for consumer and industrial-grade embedded control in unregulated environments. |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), surface-mount, tape-and-reel (#HA0 embossed tape).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/TS11 | Shared SPI clock / I²C clock / capacitive touch input; enables compact peripheral sharing on limited-pin-count designs. |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | Multi-function pin for SPI input, UART receive, debug RX, I²C data, and touch sense - configurable via PIOR register. |
| P12 | SO00/TxD0/TOOLTxD/TS13 | Simultaneous SPI output, UART transmit, debug TX, and touch sense; reduces external signal routing complexity. |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | Interrupt input, touch sensor reference capacitor connection, RTC 1-Hz output, and secondary I²C/SPI clock - critical for low-power time-synced sensing. |
| P137 | INTP0 | Dedicated external interrupt pin with fast wake-up capability from STOP mode; used for emergency or priority event handling. |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply rail; REGC pin requires 0.47–1 µF decoupling to VSS for stable internal regulator operation. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step sequences of timer comparisons, ADC reads, and GPIO toggles autonomously - extends battery life by eliminating CPU wake-ups for routine sensing tasks. |
| Capacitive Touch Unit (CTSU2La) | Supports up to 29 self-capacitance keys or mutual-capacitance matrices without external components; achieves <10 µA average current during touch polling. |
| Data Flash Background Operation (BGO) | Permits full CPU execution from code flash while rewriting 2 KB data flash - enables seamless logging and parameter storage during real-time operation. |
| Event Link Controller (ELC) | Hardware links 20 peripheral events (e.g., ADC end-of-conversion → DMA trigger → UART transmit start); removes software overhead and jitter in time-critical chains. |
| On-chip Oscillators | High-accuracy ±1.0% 1–32 MHz RC oscillator + 32.768 kHz crystal-compatible subsystem clock; eliminates external crystals for cost-sensitive and space-constrained designs. |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
|
Use Scenario: Local touch-based HVAC control panel with ambient temperature/humidity sensing and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing capacitive buttons, ADC readings, RTC-scheduled data uploads, and UART communication to ESP32/Wi-Fi module. Use Value: Integrated CTSU2La and BGO data flash enable reliable touch response and local event logging without external ICs or memory wear-out concerns. |
Use Scenario: Battery-powered vibration/temperature monitor mounted on rotating machinery with 6-month deployment cycle. IC Role / Device Role / Timing Role: Ultra-low-power data acquisition engine using SMS to trigger periodic ADC sampling, process thresholds, and wake only to transmit alerts via UART. Use Value: 200 nA STOP current and autonomous SMS reduce average power to <1 µA, extending coin-cell life beyond 200 days. |
| POS Terminal Keypad | Home Appliance Control Board |
|
Use Scenario: Compact point-of-sale terminal with metal-mesh capacitive keypad and USB-to-UART bridge. IC Role / Device Role / Timing Role: Dedicated touch controller interfacing with 12-key matrix via mutual capacitance, debouncing in hardware, and sending keycodes over UART. Use Value: CTSU2La's noise immunity and built-in calibration eliminate firmware-based filtering, reducing MCU load and improving ESD robustness. |
Use Scenario: Washing machine main control board requiring motor timing, water-level ADC, buzzer feedback, and user interface. IC Role / Device Role / Timing Role: System-on-chip managing 16-bit PWM for motor drivers, PCLBUZ0/PCLBUZ1 for audio alerts, RTC for cycle timing, and touch or mechanical button inputs. Use Value: Integrated 16-bit TAU timers and dual PCLBUZ units replace discrete timer ICs and buzzer drivers, cutting BOM count by 3 components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GAE2DSP#HA0 | 64 KB code flash, same 30-pin LSSOP package and peripherals; identical pinout and thermal profile. | Required where firmware size exceeds 32 KB or future-proofing for feature expansion is needed. | Select when bootloader, OTA stack, or complex UI logic demands >32 KB flash; no PCB change required. |
| RA2A1 R7FA2A1AB3CFM#AA0 | Arm Cortex-M23 core, 128 KB flash, 16 KB SRAM, 24-channel 12-bit ADC; QFN-48 package, higher performance but larger footprint. | Used in next-generation designs needing cryptographic acceleration, USB FS, or richer GUI frameworks. | Choose for migration paths requiring Arm ecosystem compatibility, not drop-in replacement; requires layout revision. |
Compared with R7F102GAC2DSP#HA0, the R7F102GAE2DSP#HA0 offers double flash capacity with zero hardware redesign, while the RA2A1 provides modern Arm architecture and expanded analog resources at the cost of package size and toolchain transition effort.
Availability
R7F102GAC2DSP#HA0 is available at Aetrix Electronics and suitable for smart home controllers, industrial sensor nodes, and appliance HMI systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R7F102GAC2DSP#HA0 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 automotive, industrial, and IoT markets.
The RL78/G22 product line targets cost-sensitive, ultra-low-power embedded applications demanding integrated capacitive touch, rich analog peripherals, and energy-efficient real-time control - optimized for battery-operated and space-constrained devices.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102GAC2DSP#HA0?
The R7F102GAC2DSP#HA0 operates up to 32 MHz using its high-speed on-chip oscillator, with guaranteed functionality across its full 1.6 V to 5.5 V supply range. At 32 MHz, minimum VDD is 2.7 V per datasheet Section 18.1; lower frequencies (e.g., 16 MHz) allow operation down to 1.6 V, enabling flexible power/performance trade-offs in battery-fed designs.
Does the R7F102GAC2DSP#HA0 support hardware-accelerated capacitive touch sensing, and how many keys can it handle?
Yes, the R7F102GAC2DSP#HA0 integrates the CTSU2La capacitive touch sensing unit, supporting up to 29 keys in self-capacitance mode (one pin per key) or scalable matrix configurations using mutual capacitance. It includes built-in noise cancellation, auto-calibration, and low-power polling - all without CPU intervention - making it ideal for touch interfaces in R7F102GAC2DSP#HA0-based products.
Can the R7F102GAC2DSP#HA0 perform flash memory writes while executing code from flash?
Yes, the R7F102GAC2DSP#HA0 supports Background Operation (BGO) for its 2 KB data flash memory, allowing full program execution from code flash during erase/write cycles. This enables real-time logging, parameter storage, and firmware update staging without halting application logic - a confirmed capability documented in Section 1.1 "Data flash memory" of the R01DS0424EJ0120 datasheet.
What debug interface does the R7F102GAC2DSP#HA0 provide, and which pins are used?
The R7F102GAC2DSP#HA0 uses the on-chip debug interface accessible via dedicated TOOLRxD (P11), TOOLTxD (P12), and TOOL0 (P40) pins in its 30-pin LSSOP package. These support full SWD-style debugging, flash programming, and real-time trace - no external JTAG adapter required. The interface operates at VDD voltage levels and is enabled by default on reset unless disabled in firmware.
Is the R7F102GAC2DSP#HA0 pin-compatible with other RL78/G22 variants in the same package?
Yes, the R7F102GAC2DSP#HA0 is fully pin-compatible with all other RL78/G22 devices in the 30-pin LSSOP package (e.g., R7F102GAE2DSP#HA0), sharing identical pin functions, electrical characteristics, and mechanical footprint. Memory size (32 KB vs. 64 KB) and temperature grade (2D = -40°C to +85°C) are the only functional differences - enabling seamless upgrade paths without PCB modification.
R7F102GAC2DSP#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G22
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 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#HA0 FAQ
1.How can I place an order for R7F102GAC2DSP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GAC2DSP#HA0 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#HA0 reliable?
The price and inventory of R7F102GAC2DSP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GAC2DSP#HA0 is usually 5 days.
3.What payment methods are accepted for R7F102GAC2DSP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GAC2DSP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GAC2DSP#HA0?
R7F102GAC2DSP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GAC2DSP#HA0 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#HA0?
For technical support, including R7F102GAC2DSP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GAC2DSP#HA0 requirements.
6.How does Aetrix verify that R7F102GAC2DSP#HA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GAC2DSP#HA0 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#HA0 meets industry standards.
7.What is the process for return or replacement of R7F102GAC2DSP#HA0?
All R7F102GAC2DSP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GAC2DSP#HA0, 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#HA0 part is unused and in its original packaging.
Return procedure for R7F102GAC2DSP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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