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Renesas R7F102GAC2DSP#UA0
- Part No.:
- R7F102GAC2DSP#UA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F102GAC2DSP#UA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 30LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:4,829
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Product details
Overview
R7F102GAC2DSP#UA0 from Renesas is a 30-pin, 32-KB flash, 4-KB RAM RL78/G22 16-bit microcontroller operating from 1.6 to 5.5 V, featuring 37.5-µA/MHz active current, 200-nA STOP mode, 10-channel 10-bit ADC, and up to 29 capacitive touch sensing channels - deployed in battery-powered industrial HMI and sensor interface applications.
For engineers reviewing the R7F102GAC2DSP#UA0 datasheet, R7F102GAC2DSP#UA0 pinout, R7F102GAC2DSP#UA0 application, or R7F102GAC2DSP#UA0 equivalent, this page delivers verified package mapping (30-pin LSSOP), confirmed low-power timing modes (STOP/SNOOZE), real-world CTSU2La touch channel count (29), UARTA/IICA/SAU interface allocation, and validated alternative part selection for cost-optimized industrial control designs.
Technical Context
The R7F102GAC2DSP#UA0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock). It integrates a SNOOZE mode sequencer (SMS) with 32-process capability and 21 command types, enabling ultra-low-power background sensor polling without CPU wake-up.
Its peripheral set includes an Event Link Controller (ELC) routing 20 event signals between functions, a Data Transfer Controller (DTC) with chain transfer, and a capacitive sensing unit (CTSU2La) supporting both self- and mutual-capacitance configurations - all operating within the -40°C to +85°C ambient range specified for consumer-grade applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Flash / RAM | 32 KB code flash (2-KB blocks), 2 KB data flash (1M rewrite cycles), 4 KB on-chip RAM |
| Power Modes | 37.5 µA/MHz active; 200 nA STOP; SNOOZE mode with sequencer-driven background operation |
| Analog Peripherals | 10-channel 10-bit ADC with internal 1.48-V reference and temperature sensor; 29-key CTSU2La |
| Timers & Clock | Eight 16-bit TAU channels; one 32-bit interval timer; RTC with alarm/correction; ±1.0% 32-MHz on-chip oscillator |
| Communication | Up to 4 UARTA (LIN-supported), 6 I²C/Simplified I²C, 5 CSI/SPI; ELC enables hardware-triggered peripheral chaining |
| Supply & Temp | 1.6–5.5 V single supply; -40°C to +85°C operating range (consumer-grade qualification) |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), surface-mount, tray-packaged (#UA0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P12, P14–P17, P20–P23, P25, P26, P30–P31, P40, P50–P51, P60–P61, P120–P122, P137, P147 | Digital I/O / Peripheral Multiplexing | Configurable as GPIO, UARTA/IICA/SAU pins, TAU timers, CTSU2La electrodes, or key interrupts (INTP0–INTP5) |
| P30 | TSCAP / RTC1HZ / SCL11 | Dedicated touch-sensing capacitor input; also provides RTC 1-Hz output and I²C clock for secondary bus |
| P121 / P122 | X1 / X2 crystal inputs | Support external 32.768-kHz crystal for RTC or high-accuracy system clock; internal oscillators available |
| VDD / VSS / REGC | Power / Ground / Regulator Capacitor | Single 1.6–5.5 V supply; REGC requires 0.47–1 µF capacitor to VSS for internal voltage regulator stability |
| RESET | Active-low reset input | Asynchronous reset with built-in POR and dual LVD (LVD0/LVD1) for brown-out detection and safe shutdown |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 sequential operations (e.g., ADC sampling → CTSU scan → compare → sleep) without CPU, flash, or RAM activation |
| Capacitive Touch Unit (CTSU2La) | Supports 29 self-capacitance keys or matrix-based mutual-capacitance layouts; operates across full 1.8–5.5 V VDD range |
| Data Flash Background Operation | Enables code execution from main flash while rewriting 2 KB data flash - critical for field firmware updates without interruption |
| Event Link Controller (ELC) | Hardware-routed event triggers eliminate CPU overhead for time-critical peripheral coordination (e.g., ADC end → DMA transfer) |
| Low-Power Oscillator Accuracy | ±1.0% tolerance on 32-MHz high-speed on-chip oscillator over -20°C to +85°C, reducing need for external crystal |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
|
Use Scenario: Touch-enabled control panels in HVAC controllers, programmable logic relays, and panel meters requiring reliable operation at 85°C ambient. IC Role / Device Role / Timing Role: Main controller managing capacitive touch UI, local sensor acquisition (ADC/CTSU), and RS-485/UART communication to host PLC. Use Value: 200-nA STOP mode extends battery life in semi-portable units; SNOOZE sequencer reduces average current during periodic status polling. |
Use Scenario: Battery-powered environmental sensors (temperature/humidity/air quality) transmitting data via UART-to-LoRaWAN gateways. IC Role / Device Role / Timing Role: System-on-chip performing analog sensor conditioning, CTSU-based button interface, and low-duty-cycle UART transmission scheduling. Use Value: 37.5-µA/MHz active current minimizes energy per measurement; data flash BGO allows secure OTA parameter updates without interrupting sensing. |
| Consumer Appliance Controls | Energy Monitoring Modules |
|
Use Scenario: Touch-control interfaces in microwave ovens, coffee makers, and washing machines with ESD-hardened front-panel design. IC Role / Device Role / Timing Role: Dedicated HMI processor handling touch decoding, buzzer feedback (PCLBUZ0/1), and appliance state machine via GPIO and timers. Use Value: CTSU2La supports up to 29 keys with noise immunity across 1.8–5.5 V - enabling direct connection to 3.3-V or 5-V display backlights. |
Use Scenario: DIN-rail mounted power monitors measuring AC line voltage/current using shunt or CT sensors and reporting via Modbus RTU. IC Role / Device Role / Timing Role: Precision analog front-end controller acquiring synchronized voltage/current samples via 10-bit ADC and timestamping with RTC. Use Value: Internal 1.48-V reference ensures stable ADC accuracy across supply variation; RTC alarm enables scheduled deep-sleep wake-ups for hourly reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102GAE2DSP#UA0 | 64 KB flash, same 30-pin LSSOP package, identical peripherals and pinout | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed | Select for designs anticipating firmware growth beyond 32 KB; no PCB change required |
| R7F102GAC3CSP#AA0 | Same 32 KB flash and peripherals, but rated for -40°C to +105°C industrial temperature range | Necessary for under-hood automotive modules or factory-floor equipment exceeding +85°C ambient | Choose when extended temperature operation is mandatory; otherwise R7F102GAC2DSP#UA0 suffices for consumer-grade use |
Compared with R7F102GAE2DSP#UA0, the R7F102GAC2DSP#UA0 trades flash capacity for lower cost in fixed-function applications; versus R7F102GAC3CSP#AA0, it offers identical functionality at reduced thermal qualification - making it optimal for cost-sensitive, ambient-temperature-constrained designs.
Availability
R7F102GAC2DSP#UA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and consumer appliance controls requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R7F102GAC2DSP#UA0 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 enterprise markets.
The RL78/G22 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated human-machine interfaces and sensor-edge applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102GAC2DSP#UA0?
The R7F102GAC2DSP#UA0 supports up to 32 MHz operation 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 instruction execution time is 0.03125 µs; the device maintains timing compliance without external clock sources or voltage scaling adjustments.
Does the R7F102GAC2DSP#UA0 support hardware debugging, and what interface is used?
Yes, the R7F102GAC2DSP#UA0 supports on-chip debugging via the TOOLRxD/TOOLTxD/TOOL0 pins, implementing Renesas' standard FINE debug interface. These pins enable full breakpoint, step-through, and memory inspection capabilities using E2 studio and compatible debug probes - no additional debug header or SWD/JTAG adapter required.
How many capacitive touch channels does the R7F102GAC2DSP#UA0 support, and what configuration options exist?
The R7F102GAC2DSP#UA0 integrates the CTSU2La unit supporting up to 29 capacitive touch sensing channels. It operates in self-capacitance mode (one pin per key) or mutual-capacitance matrix mode (transmit/receive pin pairs), both functional across 1.8–5.5 V VDD. Pin assignment is flexible via register configuration, not fixed by package.
What is the endurance and access method for the data flash memory in the R7F102GAC2DSP#UA0?
The R7F102GAC2DSP#UA0 includes 2 KB of data flash memory rated for 1,000,000 write/erase cycles (typical). It supports background operation (BGO): CPU can execute code from main flash while data flash is being rewritten, enabling seamless firmware parameter updates or logging without system interruption.
Is the R7F102GAC2DSP#UA0 pin-compatible with other RL78/G22 variants in the same package?
Yes, all RL78/G22 devices in the 30-pin LSSOP package - including R7F102GAC2DSP#UA0, R7F102GAE2DSP#UA0, R7F102GAC3CSP#AA0, and R7F102GAE3CSP#AA0 - share identical pinouts and electrical characteristics. Memory size (32 KB vs. 64 KB) and temperature grade (-40°C to +85°C vs. -40°C to +105°C) are the only functional differentiators.
R7F102GAC2DSP#UA0 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:
- 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#UA0 FAQ
1.How can I place an order for R7F102GAC2DSP#UA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GAC2DSP#UA0 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#UA0 reliable?
The price and inventory of R7F102GAC2DSP#UA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GAC2DSP#UA0 is usually 5 days.
3.What payment methods are accepted for R7F102GAC2DSP#UA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GAC2DSP#UA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GAC2DSP#UA0?
R7F102GAC2DSP#UA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GAC2DSP#UA0 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#UA0?
For technical support, including R7F102GAC2DSP#UA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GAC2DSP#UA0 requirements.
6.How does Aetrix verify that R7F102GAC2DSP#UA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GAC2DSP#UA0 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#UA0 meets industry standards.
7.What is the process for return or replacement of R7F102GAC2DSP#UA0?
All R7F102GAC2DSP#UA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GAC2DSP#UA0, 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#UA0 part is unused and in its original packaging.
Return procedure for R7F102GAC2DSP#UA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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