My Inquiry
My Account
Renesas R7F102GAC3CSP#BA0
- Part No.:
- R7F102GAC3CSP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R7F102GAC3CSP#BA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 30LSSOP -
- Quantity:
- Payment:
- Shipping:
Inventory:3,196
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7F102GAC3CSP#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 industrial HMI and sensor nodes.
For engineers reviewing the R7F102GAC3CSP#BA0 datasheet, R7F102GAC3CSP#BA0 pinout, R7F102GAC3CSP#BA0 application, or R7F102GAC3CSP#BA0 equivalent, key selection criteria include its 30-pin LSSOP-30 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 event-driven operation without CPU wake-up.
Technical Context
The RL78/G22 core implements a 3-stage pipeline CISC architecture with configurable instruction timing (0.03125 µs at 32 MHz high-speed mode or 30.5 µs at 32.768 kHz ultra-low-speed mode), supporting multiply/divide/accumulate instructions and 1 MB address space. It integrates a dedicated SNOOZE mode sequencer (SMS) that executes up to 32 preloaded commands-including value comparison and arithmetic-enabling autonomous low-power sensing sequences without CPU, flash, or RAM activation.
Peripheral integration 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), five simplified SPI (CSI) channels, and an Event Link Controller (ELC) enabling direct hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78/G22 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / RAM | 32 KB code flash (2 KB block size) + 4 KB on-chip RAM - supports background data flash rewriting (2 KB, 1M write cycles) |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; HALT/SNOOZE modes enable sub-µA event-driven operation |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters |
| Capacitive Sensing | CTSU2La unit supporting 29 self-capacitance keys or matrix mutual-capacitance configurations - no external components required |
| Timers & RTC | Eight 16-bit TAU channels; 32-bit interval timer; calendar-mode RTC (1 sec–99 years) with alarm and correction |
| Communications | Up to 4 UARTA (1 with LIN), 6 I²C (2 dedicated IICA), 5 CSI (SPI-compatible), plus ELC for hardware-linked peripheral triggering |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), JEDEC MS-013AC, RoHS-compliant, industrial-grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/TS11 | Primary SPI clock or I²C clock input; also serves as capacitive touch channel TS11 - shared function managed via peripheral I/O redirection register (PIOR) |
| P11 | SI00/RxD0/TOOLRxD/SDA00/TS12 | UART0 receive, I²C data, SPI input, debug RX, or touch sense line - multiplexed via PIOR; enables single-pin debug-to-touch reconfiguration |
| P12 | SO00/TxD0/TOOLTxD/TS13 | UART0 transmit, SPI output, debug TX, or touch sense line - supports simultaneous UART debug and capacitive sensing on same physical pin |
| P30 | INTP3/TSCAP/RTC1HZ/SCL11/SCK11 | Interrupt input, touch sensor reference capacitor connection, RTC 1 Hz output, or secondary I²C/SPI clock - TSCAP requires external 0.1 µF capacitor to VSS |
| P137 | INTP0 | Dedicated external interrupt input (edge-triggered) - used for wake-up from STOP/HALT modes or real-time event capture |
| P121 / P122 | X1/XT1 and X2/XT2 | Crystal oscillator inputs for main system clock (1–20 MHz) or subsystem clock (32.768 kHz) - supports high-accuracy timing with ±1% on-chip oscillator alternative |
| REGC | Voltage regulator bypass | Must be connected to VSS via 0.47–1 µF ceramic capacitor - critical for internal LDO stability and low-noise analog performance |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V supply; VSS provides analog/digital ground reference - separate AGND/DGND not required due to integrated noise suppression |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes up to 32 autonomous commands (compare, add, store) without CPU, flash, or RAM - reduces average power in periodic sensing by >90% vs. polling |
| Capacitive Touch Unit (CTSU2La) | Hardware-accelerated self/mutual capacitance sensing on up to 29 pins - eliminates need for external touch controller IC or firmware-based correlation algorithms |
| Event Link Controller (ELC) | Direct hardware linking of 20 peripheral events (e.g., ADC end-of-conversion → DMA trigger → UART transmit start) - removes CPU ISR overhead and latency jitter |
| On-chip High-Accuracy Oscillator | ±1.0% frequency tolerance (1.8–5.5 V, -20 to +85°C) - enables crystal-free operation in cost-sensitive applications while maintaining UART baud accuracy |
| Data Flash Background Operation | Execute code from flash while rewriting 2 KB data flash - enables over-the-air firmware updates and nonvolatile parameter storage without system interruption |
| Peripheral I/O Redirection (PIOR) | Dynamic remapping of up to 12 peripheral functions to alternate pins - simplifies PCB layout and enables pin reuse across product variants |
Applications
| Industrial Control Panel | Smart Thermostat |
|---|---|
Use Scenario: Wall-mounted HVAC interface with 12-button capacitive keypad, ambient temperature/humidity sensing, and RS-485 communication to building management system. IC Role / Device Role / Timing Role: Main system controller executing UI logic, ADC sampling, CTSU2La touch scanning, and UART-to-RS485 protocol translation. Use Value: 32 KB flash accommodates full GUI stack and communication firmware; SNOOZE mode extends battery life to >5 years on two AA cells when display is off. |
Use Scenario: Battery-powered programmable thermostat with OLED display, NTC thermistor, and BLE connectivity via UART bridge. IC Role / Device Role / Timing Role: Primary MCU managing sensor acquisition, touch response, RTC scheduling, and UART host interface for BLE module. Use Value: Integrated 10-bit ADC with internal reference eliminates external voltage reference IC; CTSU2La supports waterproof overlay design without mechanical buttons. |
| Portable Medical Sensor | Energy Meter HMI |
Use Scenario: Handheld pulse oximeter with LED drivers, photodiode amplifier, and capacitive touch for power-on and mode selection. IC Role / Device Role / Timing Role: Signal acquisition controller performing synchronized LED drive, ADC conversion, digital filtering, and touch event handling. Use Value: 200 nA STOP current enables multi-week standby on coin cell; TAU timers precisely control LED pulse width and ADC sampling windows. |
Use Scenario: DIN-rail mounted electricity meter with LCD, tamper detection switches, IR communication, and capacitive navigation buttons. IC Role / Device Role / Timing Role: HMI co-processor handling button input, LCD refresh, IR modulation, and secure parameter storage in data flash. Use Value: Dual I²C interfaces allow independent communication with metrology ASIC and IR transceiver; data flash endurance (1M cycles) ensures 10+ year field reliability. |
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#BA0 | Same 30-pin LSSOP package and peripherals, but with 64 KB code flash and identical 4 KB RAM | Required where bootloader, OTA update partition, or larger RTOS image exceeds 32 KB footprint | Select when future firmware expansion headroom or dual-bank flash safety mechanisms are needed |
| R7F102GBC3CNP#AA0 | 32-pin HWQFN (5×5 mm) with identical 32 KB flash, 4 KB RAM, and -40°C to +85°C rating; adds P62 and P70 pins | Better suited for space-constrained PCBs requiring higher pin count for expanded analog or communication I/O | Choose when additional GPIO, extra ADC channel, or dedicated SCK21/SCL21 for second I²C bus is required |
Compared with R7F102GAE3CSP#BA0, the R7F102GAC3CSP#BA0 trades flash capacity for lower unit cost and identical low-power performance; versus R7F102GBC3CNP#AA0, it offers LSSOP's ease of prototyping and rework at the expense of two I/O pins and slightly larger footprint.
Availability
R7F102GAC3CSP#BA0 is available at Aetrix Electronics and suitable for industrial HMI, battery-powered sensor nodes, and smart energy metering applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R7F102GAC3CSP#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, 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 nodes - emphasizing integrated capacitive touch, event-driven autonomy, and seamless migration from legacy RL78/G1x devices.
FAQ
What is the maximum operating frequency and corresponding current consumption of the R7F102GAC3CSP#BA0?
The R7F102GAC3CSP#BA0 supports up to 32 MHz operation using the high-speed on-chip oscillator, achieving a minimum instruction execution time of 0.03125 µs. At this frequency, typical active current is 37.5 µA per MHz - so full-speed operation draws approximately 1.2 mA at 32 MHz and 3.3 V, verified per R01DS0424EJ0120 Rev.1.20 Section 1.1.
Does the R7F102GAC3CSP#BA0 support crystal-less USB or CAN communication?
No, the R7F102GAC3CSP#BA0 does not integrate USB or CAN peripherals. Its communication interfaces are limited to UARTA (with LIN support), I²C (IICA), and simplified SPI (CSI). USB and CAN require external transceivers or companion ICs; the device lacks dedicated USB PHY or CAN controller hardware per R01DS0424EJ0120 Rev.1.20 Sections 1.2 and 1.6.
How many capacitive touch channels can be implemented using the CTSU2La unit on the R7F102GAC3CSP#BA0?
The CTSU2La unit on the R7F102GAC3CSP#BA0 supports up to 29 capacitive touch channels - configurable in self-capacitance mode (one pin per key) or mutual-capacitance matrix mode (transmit/receive pin pairs). This capability is confirmed in R01DS0424EJ0120 Rev.1.20 Section 1.1 and Table 1-6 for the 30-pin LSSOP variant.
Is the R7F102GAC3CSP#BA0 pin-compatible with other RL78/G22 family members in the same package?
Yes, all RL78/G22 devices in the 30-pin LSSOP package (e.g., R7F102GAC3CSP#BA0 and R7F102GAE3CSP#BA0) share identical pinouts and electrical characteristics. Memory differences (32 KB vs. 64 KB flash) do not affect pin assignment, allowing direct hardware compatibility and firmware reuse across flash variants per R01DS0424EJ0120 Rev.1.20 Table 1-1.
What debug interface does the R7F102GAC3CSP#BA0 support, and what pins are required?
The R7F102GAC3CSP#BA0 supports on-chip debugging via the FINE interface using three dedicated pins: P40 (TOOL0), P11 (TOOLRxD), and P12 (TOOLTxD). These pins provide full SWD-like functionality including halt/run control, breakpoint setting, and memory access - documented in R01DS0424EJ0120 Rev.1.20 Section 1.3.5 and Figure 1-12.
R7F102GAC3CSP#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:
- 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#BA0 FAQ
1.How can I place an order for R7F102GAC3CSP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102GAC3CSP#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 R7F102GAC3CSP#BA0 reliable?
The price and inventory of R7F102GAC3CSP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102GAC3CSP#BA0 is usually 5 days.
3.What payment methods are accepted for R7F102GAC3CSP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102GAC3CSP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102GAC3CSP#BA0?
R7F102GAC3CSP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102GAC3CSP#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 R7F102GAC3CSP#BA0?
For technical support, including R7F102GAC3CSP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102GAC3CSP#BA0 requirements.
6.How does Aetrix verify that R7F102GAC3CSP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F102GAC3CSP#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 R7F102GAC3CSP#BA0 meets industry standards.
7.What is the process for return or replacement of R7F102GAC3CSP#BA0?
All R7F102GAC3CSP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102GAC3CSP#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 R7F102GAC3CSP#BA0 part is unused and in its original packaging.
Return procedure for R7F102GAC3CSP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102GAC3CSP#BA0 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
