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Renesas R7F102GAC3CSP#HA0
- Part No.:
- R7F102GAC3CSP#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F102GAC3CSP#HA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 30LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:3,790
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Product details
Overview
R7F102GAC3CSP#HA0 from Renesas is a 30-pin, 32-KB flash, 4-KB RAM RL78/G22 16-bit microcontroller with ultra-low-power operation (37.5 µA/MHz active, 200 nA STOP), integrated capacitive touch sensing (up to 29 keys), and dual UART/I²C/SPI interfaces. It operates from 1.6–5.5 V and supports industrial temperature range (−40 to +105°C), targeting battery-powered HMI and sensor-edge control applications.
For engineers reviewing the R7F102GAC3CSP#HA0 datasheet, R7F102GAC3CSP#HA0 pinout, R7F102GAC3CSP#HA0 application, or R7F102GAC3CSP#HA0 equivalent, key selection considerations include its LSSOP-30 package, 32-KB code flash with data flash (2 KB), RTC + 16-bit TAU timers, CTSU2La capacitive sensing unit, and support for SNOOZE mode sequencer for autonomous low-power wake-up sequences.
Technical Context
The R7F102GAC3CSP#HA0 implements the RL78 CPU core with 3-stage pipeline, configurable instruction timing (0.03125 µs @ 32 MHz high-speed clock or 30.5 µs @ 32.768 kHz subsystem clock), and multiply/divide/accumulate instructions. Its memory architecture includes 32 KB code flash (2 KB block size), 2 KB data flash with background operation (BGO), and 4 KB on-chip RAM.
Peripherals include a 10-bit A/D converter (10-channel analog input), real-time clock with alarm and correction, watchdog timer, event link controller (ELC) for peripheral interconnect, data transfer controller (DTC), and SNOOZE mode sequencer (SMS) supporting up to 32 sequential low-power operations without CPU involvement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Flash / RAM | 32 KB code flash (2 KB erase blocks), 2 KB data flash (1M rewrite cycles), 4 KB SRAM |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; HALT/SNOOZE modes supported |
| Operating Voltage | 1.6 V to 5.5 V single supply - enables direct battery interface (e.g., 3×AA, Li-ion, or coin cell) |
| Temperature Range | −40°C to +105°C - qualified for industrial-grade embedded control |
| Capacitive Sensing | CTSU2La unit supporting up to 29 self-capacitance keys or matrix mutual-capacitance configurations |
| Timers & RTC | Eight 16-bit TAU channels; 32-bit interval timer; RTC with calendar (1 sec–99 years), alarm, and correction |
Pinout & Package
LSSOP-30 package (7.62 mm × 4.4 mm, 0.65-mm pitch), 30-pin plastic small outline package with exposed pad recommended for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/TS11 | Primary SPI clock or I²C clock; also serves as capacitive touch channel TS11 |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | UART0 receive, I²C data, SPI input, debug RX, and touch channel TS12 |
| P12 | SO00/TxD0/TOOLTxD/TS13 | UART0 transmit, SPI output, debug TX, and touch channel TS13 |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | Interrupt input, touch sensor reference capacitor connection, RTC 1-Hz output, I²C clock, SPI clock |
| P137 | INTP0 | External interrupt input (edge-triggered) for system wake-up or event capture |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply rail; REGC requires 0.47–1 µF decoupling to VSS |
| RESET | Active-low reset input | Asynchronous reset with internal POR and dual voltage detectors (LVD0/LVD1) |
| P40 | TOOL0 | Dedicated debug interface pin for on-chip debugging and programming |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 200 nA quiescent current enables multi-year battery life in always-on sensor nodes |
| SNOOZE mode sequencer (SMS) | Executes up to 32 autonomous low-power operations (e.g., ADC sampling, compare, GPIO toggle) without CPU or flash activation |
| Capacitive Touch Unit (CTSU2La) | Hardware-accelerated touch sensing with noise immunity and auto-tuning - eliminates need for external touch controller |
| Data Flash with BGO | Background operation allows full program execution while rewriting 2 KB data flash - critical for firmware-over-the-air and parameter logging |
| Peripheral Interconnect (ELC) | 20-event hardware routing enables deterministic, low-latency peripheral chaining (e.g., ADC → DTC → UART) without CPU overhead |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted HVAC controller with capacitive touch buttons, ambient temperature/humidity sensing, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller executing UI logic, managing CTSU2La touch inputs, reading 10-bit ADC sensors, and driving UART-based sub-GHz radio. Use Value: 32-KB flash hosts full UI stack + communication protocol; SNOOZE mode reduces average current to <1 µA during display-off periods. | Use Scenario: DIN-rail mounted condition monitor measuring vibration, temperature, and power quality in factory equipment. IC Role / Device Role / Timing Role: Edge data aggregator with RTC timestamping, 10-channel ADC acquisition, and UART-to-Modbus gateway functionality. Use Value: −40°C to +105°C rating ensures reliability in enclosures; data flash BGO enables continuous logging while transmitting Modbus frames. |
| Portable Medical Device | Appliance Control Panel |
Use Scenario: Battery-powered pulse oximeter with OLED display, optical sensor interface, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: System-on-chip managing optical signal processing, touch navigation, and BLE UART bridge via simplified SPI. Use Value: 37.5 µA/MHz active current extends AA battery life beyond 6 months; integrated CTSU2La replaces mechanical buttons with sealed front-panel design. | Use Scenario: Microwave oven control board requiring touch keys, buzzer feedback, motor control, and safety interlocks. IC Role / Device Role / Timing Role: Primary MCU handling capacitive keypad scanning, PCLBUZ0/PCLBUZ1 buzzer outputs, GPIO-driven relays, and real-time cooking timer. Use Value: Dual buzzer outputs drive audible alerts and error tones; RTC provides precise cooking countdown independent of main loop timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GAE3CSP#HA0 | 64 KB code flash, same 30-pin LSSOP package, identical peripherals and pinout | Required where firmware image exceeds 32 KB or future-proofing for feature expansion is needed | Select when larger code footprint or bootloader + application separation is required |
| R7F102GCC3CLA#HC0 | 36-pin WFLGA package, 32 KB flash, adds 4 extra analog inputs (ANI4/ANI5/ANI6) and KR0–KR3 keyboard interrupt pins | Better suited for space-constrained designs needing more analog channels or dedicated key-scan I/O | Choose for compact PCB layouts requiring higher analog channel count and enhanced HMI scalability |
Compared with R7F102GAC3CSP#HA0, the R7F102GAE3CSP#HA0 offers double flash capacity without layout change, while R7F102GCC3CLA#HC0 trades pin count for analog density and keyboard scan capability - enabling optimized trade-offs between code size, I/O count, and package footprint.
Availability
R7F102GAC3CSP#HA0 is available at Aetrix Electronics and suitable for industrial automation controllers, battery-powered HMI panels, and sensor-edge gateways requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R7F102GAC3CSP#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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G22 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial HMI applications - combining ultra-low active/standby current with rich analog and touch integration.
FAQ
What is the maximum operating frequency and corresponding instruction speed for R7F102GAC3CSP#HA0?
The R7F102GAC3CSP#HA0 supports up to 32 MHz operation using the high-speed on-chip oscillator. At this frequency, the minimum instruction execution time is 0.03125 µs. The core also supports ultra-low-speed operation at 32.768 kHz (30.5 µs/instruction) for RTC and low-power monitoring tasks - both modes are fully supported on the R7F102GAC3CSP#HA0.
Does R7F102GAC3CSP#HA0 include an integrated capacitive touch sensing unit, and how many keys does it support?
Yes, R7F102GAC3CSP#HA0 integrates the CTSU2La capacitive touch sensing unit. It supports up to 29 keys using self-capacitance configuration (one pin per key) or matrix-based mutual capacitance with flexible TX/RX pin assignment - all implemented in hardware without CPU intervention, and fully functional on the R7F102GAC3CSP#HA0.
What are the memory resources available on R7F102GAC3CSP#HA0, and is background data flash rewriting supported?
R7F102GAC3CSP#HA0 provides 32 KB of code flash memory (2 KB erase blocks), 2 KB of data flash memory, and 4 KB of on-chip RAM. Data flash supports background operation (BGO): the R7F102GAC3CSP#HA0 can execute instructions from program memory while simultaneously rewriting data flash - enabling seamless firmware updates and runtime parameter storage.
Which communication interfaces are available on R7F102GAC3CSP#HA0, and are LIN-bus features included?
R7F102GAC3CSP#HA0 includes up to four UARTA channels (one with LIN-bus support), up to six I²C/Simplified I²C channels, and up to five Simplified SPI (CSI) channels. UARTA channel 0 explicitly supports LIN-bus protocol - confirmed in the RL78/G22 datasheet for all variants including R7F102GAC3CSP#HA0 - enabling direct connection to automotive body electronics networks.
What is the operating temperature range and package type for R7F102GAC3CSP#HA0, and is it qualified for industrial use?
R7F102GAC3CSP#HA0 is packaged in a 30-pin LSSOP (7.62 mm × 4.4 mm, 0.65-mm pitch) and rated for −40°C to +105°C ambient operation - designated "3C" for industrial applications per Renesas part numbering. This qualification confirms suitability for harsh environments such as factory automation, building controls, and outdoor edge devices - fully applicable to the R7F102GAC3CSP#HA0.
R7F102GAC3CSP#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102GAC3CSP#HA0 FAQ
1.How can I place an order for R7F102GAC3CSP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GAC3CSP#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 R7F102GAC3CSP#HA0 reliable?
The price and inventory of R7F102GAC3CSP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GAC3CSP#HA0 is usually 5 days.
3.What payment methods are accepted for R7F102GAC3CSP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GAC3CSP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GAC3CSP#HA0?
R7F102GAC3CSP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GAC3CSP#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 R7F102GAC3CSP#HA0?
For technical support, including R7F102GAC3CSP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GAC3CSP#HA0 requirements.
6.How does Aetrix verify that R7F102GAC3CSP#HA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GAC3CSP#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 R7F102GAC3CSP#HA0 meets industry standards.
7.What is the process for return or replacement of R7F102GAC3CSP#HA0?
All R7F102GAC3CSP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GAC3CSP#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 R7F102GAC3CSP#HA0 part is unused and in its original packaging.
Return procedure for R7F102GAC3CSP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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