Renesas R7F102G6E2DSP#CA0
- Part No.:
- R7F102G6E2DSP#CA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-LSSOP (0.173", 4.40mm Width)
- Datasheet:
-
R7F102G6E2DSP#CA0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 20LSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:673
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Product details
Overview
R7F102G6E2DSP#CA0 from Renesas is a 20-pin LSSOP ultra-low-power 16-bit RL78/G22 microcontroller with 64 KB code flash, 4 KB RAM, 2 KB data flash, 10-channel 10-bit ADC, and integrated capacitive touch sensing for up to 29 keys. It operates from 1.6 V to 5.5 V and supports industrial temperature range (−40°C to +105°C), targeting battery-powered HMI and sensor interface applications.
For engineers reviewing the R7F102G6E2DSP#CA0 datasheet, R7F102G6E2DSP#CA0 pinout, R7F102G6E2DSP#CA0 application, or R7F102G6E2DSP#CA0 equivalent, key selection criteria include its 20-pin LSSOP-0.65mm package, STOP-mode current of 200 nA, SNOOZE mode sequencer for autonomous low-power sensing, and dual UART/I²C/SPI interfaces for peripheral connectivity in space-constrained embedded systems.
Technical Context
The R7F102G6E2DSP#CA0 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 dedicated SNOOZE mode sequencer (SMS) supporting 32 sequential operations using 21 command types without CPU intervention.
Peripheral integration includes an Event Link Controller (ELC) enabling 20 event-driven peripheral couplings, a Data Transfer Controller (DTC) with chain transfer capability, and a capacitive touch sensing unit (CTSU2La) supporting both self- and mutual-capacitance methods on shared I/O pins - all operating within the same 1.6–5.5 V supply range as the core logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and selectable instruction timing |
| Memory | 64 KB code flash (2 KB blocks), 2 KB data flash (1M rewrite cycles), 4 KB RAM |
| Power Consumption | 37.5 µA/MHz active; 200 nA STOP mode; HALT and SNOOZE modes supported |
| Analog Peripherals | 10-channel 10-bit ADC with internal 1.48 V reference and temperature sensor |
| Capacitive Touch | CTSU2La unit supporting up to 29 keys via self- or mutual-capacitance method |
| Timers & RTC | Eight 16-bit TAU channels; 32-bit interval timer; RTC with alarm and clock correction |
| Communication Interfaces | Up to 4 UARTA channels (LIN-supported), 6 I²C/Simplified I²C, 5 CSI/SPI channels |
Pinout & Package
Package: 20-pin plastic LSSOP (4.4 × 6.5 mm, 0.65-mm pitch), industrial-grade (−40°C to +105°C), tape-and-reel packaging (#CA0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Analog input / Timer input / UART TX | ANI17, TI00, TxD1 - supports analog sensing, edge-triggered timing, and serial output |
| P01 | Analog input / Timer output / UART RX | ANI16, TO00, RxD1 - enables analog acquisition, PWM generation, and serial input |
| P10–P12 | Multi-function serial I/O | SCK00/SCL00, SI00/RxD0/SDA00, SO00/TxD0 - configurable SPI/I²C/UART primary interface |
| P16–P17 | Timer I/O / Capacitive touch | TI01/TO01/TS17, TI02/TO02/TS18 - provides dual timer channels and dedicated CTSU electrode inputs |
| P20–P22 | Analog inputs / Reference voltage | ANI0/AVREFP, ANI1/AVREFM, ANI2/TS20 - supplies ADC reference and three analog sensing channels |
| P30 | RTC / Touch scan / Interrupt | TSCAP, RTC1HZ, INTP3 - serves as touch controller capacitor pin, real-time clock output, and external interrupt source |
| P40 | Debug interface | TOOL0 - dedicated pin for on-chip debugging and programming via Renesas E2 studio |
| VDD / VSS | Power supply rails | Single 1.6–5.5 V operation; REGC requires 0.47–1 µF decoupling to VSS |
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 32-step autonomous sequences (e.g., touch scan → ADC read → compare) without CPU wake-up |
| Capacitive touch unit (CTSU2La) | Supports matrix-based mutual-capacitance layouts up to 29 electrodes using standard GPIO |
| Background data flash rewriting | BGO allows program execution from code flash while updating 2 KB data flash - critical for firmware-over-the-air |
| Event Link Controller (ELC) | Hardware coupling of 20 peripheral events eliminates software overhead for time-critical signal chaining |
Applications
| Smart Appliance Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Touch-enabled control interface on refrigerator or HVAC panel with ambient light adaptation and button feedback. IC Role / Device Role / Timing Role: Primary MCU managing capacitive touch scanning, LED/buzzer feedback via PCLBUZ0/1, and UART communication to main controller. Use Value: Integrated CTSU2La and 10-bit ADC eliminate external touch controller; 200 nA STOP mode extends battery backup duration during standby. | Use Scenario: Wireless temperature/humidity node with local display, push-button configuration, and RS-485 backhaul. IC Role / Device Role / Timing Role: System controller handling analog sensor reads (ANI0–ANI2), touch input (TS10–TS20), and UART-to-RS485 bridge via UARTA. Use Value: Dual UARTA channels enable simultaneous local debug (TOOLRxD/TOOLTxD) and field bus communication; RTC supports timestamped logging. |
| Portable Medical Monitor | Energy-Efficient Building Automation |
Use Scenario: Battery-powered pulse oximeter with OLED display, tactile buttons, and Bluetooth LE module interface. IC Role / Device Role / Timing Role: Main processor executing touch UI, analog front-end sampling (temperature, photodiode), and SPI interface to BLE SoC. Use Value: 37.5 µA/MHz active current minimizes power draw during continuous SpO₂ calculation; SNOOZE mode scans touch keys every 500 ms without waking CPU. | Use Scenario: Occupancy-sensing lighting controller with ambient light detection, PIR integration, and DALI bus interface. IC Role / Device Role / Timing Role: Central coordinator reading analog light sensor (ANI16/ANI17), processing PIR interrupts (INTP0/INTP3), and driving DALI via UARTA. Use Value: Hardware ELC links PIR edge events directly to timer capture - eliminating ISR latency; 64 KB flash accommodates DALI stack + application logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G6C2DSP | 32 KB code flash (vs. 64 KB); identical pinout, package, and peripheral set | Suitable for simpler firmware with smaller memory footprint; no change to PCB or layout | Select when application code size remains under 30 KB and future feature expansion is unlikely |
| RL78/G13 R5F100LEAFB#30 | 48-pin LQFP; 128 KB flash, 8 KB RAM; lacks CTSU2La but adds CAN interface | Requires PCB redesign; targets automotive body electronics where CAN is mandatory | Choose only if CAN bus support is required and board space/layout changes are acceptable |
Compared with R7F102G6C2DSP and RL78/G13 R5F100LEAFB#30, the R7F102G6E2DSP#CA0 uniquely balances compact 20-pin LSSOP packaging, 64 KB flash headroom, and integrated capacitive touch - making it optimal for cost-sensitive, space-constrained industrial HMI where CAN is unnecessary.
Availability
R7F102G6E2DSP#CA0 is available at Aetrix Electronics and suitable for smart appliance control panels, portable medical monitors, industrial sensor nodes, and energy-efficient building automation systems requiring stable component supply across extended production lifecycles.
Supply support for R7F102G6E2DSP#CA0 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, infrastructure, and IoT markets.
The RL78/G22 product line delivers true low-power embedded control with integrated capacitive touch and flexible peripheral routing - designed specifically for cost-sensitive, battery-operated human-machine interface and sensor-edge applications.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F102G6E2DSP#CA0?
The R7F102G6E2DSP#CA0 supports up to 32 MHz operation using the high-speed on-chip oscillator with ±1.0% accuracy across VDD = 1.8 V to 5.5 V and TA = −20°C to +85°C. Its full 1.6 V to 5.5 V operating range applies at lower frequencies, including 32.768 kHz subsystem clock mode.
Does the R7F102G6E2DSP#CA0 support hardware-accelerated capacitive touch sensing, and how many electrodes can it manage?
Yes, the R7F102G6E2DSP#CA0 integrates the CTSU2La capacitive touch sensing unit supporting up to 29 electrodes. It operates in self-capacitance mode (one pin per key) or mutual-capacitance matrix mode using configurable transmit/receive pin pairs - all without CPU involvement during scan.
Can the R7F102G6E2DSP#CA0 perform background data flash writes while executing code from main flash memory?
Yes, the R7F102G6E2DSP#CA0 supports Background Operation (BGO) for data flash. Instructions execute from code flash memory while rewriting the 2 KB data flash - enabling seamless firmware updates and parameter storage without halting application code.
What debug interface does the R7F102G6E2DSP#CA0 use, and which pins are required?
The R7F102G6E2DSP#CA0 uses Renesas' on-chip debugging interface via the TOOL0 (P40), TOOLRxD (P11), and TOOLTxD (P12) pins. These three pins enable full SWD-style debugging, flash programming, and real-time trace in E2 studio without external JTAG adapters.
Is the R7F102G6E2DSP#CA0 qualified for industrial temperature operation, and what is its specified ambient range?
Yes, the R7F102G6E2DSP#CA0 is rated for industrial temperature operation with TA = −40°C to +105°C. This rating is confirmed by its part number suffix "3C" (C = industrial fields of application, 3 = −40°C to +105°C range), making it suitable for factory automation and outdoor equipment.
R7F102G6E2DSP#CA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-LSSOP (0.173", 4.40mm Width)
- Series:
- RL78/G22
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 15
- Program Memory Size:
- 64KB (64K 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 6x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102G6E2DSP#CA0 FAQ
1.How can I place an order for R7F102G6E2DSP#CA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G6E2DSP#CA0 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 R7F102G6E2DSP#CA0 reliable?
The price and inventory of R7F102G6E2DSP#CA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G6E2DSP#CA0 is usually 5 days.
3.What payment methods are accepted for R7F102G6E2DSP#CA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G6E2DSP#CA0 transactions.
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Once your R7F102G6E2DSP#CA0 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 R7F102G6E2DSP#CA0?
For technical support, including R7F102G6E2DSP#CA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G6E2DSP#CA0 requirements.
6.How does Aetrix verify that R7F102G6E2DSP#CA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G6E2DSP#CA0 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 R7F102G6E2DSP#CA0 meets industry standards.
7.What is the process for return or replacement of R7F102G6E2DSP#CA0?
All R7F102G6E2DSP#CA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G6E2DSP#CA0, 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 R7F102G6E2DSP#CA0 part is unused and in its original packaging.
Return procedure for R7F102G6E2DSP#CA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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