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Renesas R7F102G4C2DNP#UA0
- Part No.:
- R7F102G4C2DNP#UA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
R7F102G4C2DNP#UA0.pdf
- Description:
- 16BIT MCU RL78/G22 32K 16HWQFN -
- Quantity:
- Payment:
- Shipping:
Inventory:3,124
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Product details
Overview
R7F102G4C2DNP#UA0 from Renesas is a 16-pin HWQFN-packaged 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 ultra-low power consumption (37.5 µA/MHz active, 200 nA STOP mode), integrates 10-channel 10-bit ADC, up to 29 capacitive touch sensing inputs, and supports UART, I²C, and SPI interfaces for consumer-grade human-machine interface applications.
For engineers reviewing the R7F102G4C2DNP#UA0 datasheet, R7F102G4C2DNP#UA0 pinout, R7F102G4C2DNP#UA0 application, or R7F102G4C2DNP#UA0 equivalent, key selection criteria include its 16-pin HWQFN (3 × 3 mm, 0.50-mm pitch) footprint, -40 to +85°C temperature grade, 32 KB flash capacity, CTSU2La capacitive touch unit, and support for SNOOZE mode sequencer-driven low-power sensor polling.
Technical Context
The R7F102G4C2DNP#UA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock). Its SNOOZE mode sequencer (SMS) executes up to 32 preconfigured commands-including value comparison and arithmetic-without CPU, flash, or RAM activation, reducing system-level wake-up overhead.
Peripheral integration includes a 10-channel 10-bit ADC with internal 1.48 V reference and temperature sensor, dual I²C interfaces (IICA0/IICA1), three UARTA channels (one supporting LIN bus), and a 16-bit timer array unit (TAU) with 8 channels. The device uses a dedicated REGC capacitor pin for on-chip voltage regulator stability and supports hardware-based flash shield window protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing control for real-time HMI response. |
| Flash Memory | 32 KB code flash + 2 KB data flash; supports background operation (BGO) and self-programming with boot swapping. |
| Operating Voltage | 1.6 V to 5.5 V; allows direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters. |
| Power Consumption | 37.5 µA/MHz active current; 200 nA STOP mode; enables battery-powered devices with multi-year runtime. |
| Capacitive Sensing | CTSU2La unit supporting up to 29 keys via self- or mutual-capacitance methods; eliminates external touch controller ICs. |
| Temperature Range | -40 to +85°C; qualified for consumer electronics applications requiring reliable operation in ambient environments. |
| Package | HWQFN-16 (3 × 3 mm, 0.50-mm pitch); exposes die pad for thermal management and requires REGC-to-VSS decoupling (0.47–1 µF). |
Pinout & Package
Package: HWQFN-16 (3 × 3 mm, 0.50-mm pitch), exposed die pad, tray packaging (#UA0). Requires 0.47–1 µF capacitor between REGC and VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P122 | Crystal input / external clock | Connects to X2/XT2 crystal or external clock source; enables precise timing for RTC and communication baud rates. |
| P121 | Crystal input / external clock | Connects to X1/XT1 crystal; forms Pierce oscillator with P122 for main system clock generation. |
| REGC | Voltage regulator capacitor | Mandatory 0.47–1 µF capacitor to VSS stabilizes internal LDO output; omission causes unstable operation. |
| VSS | Ground reference | Primary digital ground; must be connected to PCB ground plane with low-impedance path for noise immunity. |
| VDD | Power supply input | Single 1.6–5.5 V supply powers entire chip; no separate analog/digital rails required. |
| RESET | Active-low reset input | Asynchronous reset assertion halts CPU and peripherals; internal POR ensures clean startup at power-on. |
| P137 | Interrupt input | INTP0 interrupt pin; supports edge-triggered wake-up from STOP/SNOOZE modes for event-driven operation. |
| P30 | Touch sense / RTC / I²C | TSCAP pin for capacitive sensing; also provides RTC1HZ output and SCL11 for second I²C interface. |
| P17 | Timer / touch / I²C | TI02/TO02 timer channel; TS18 touch input; SDA11 for second I²C interface-enables dual I²C slave/master operation. |
| P12 | UART / SPI / debug | SO00/TxD0 for UARTA0; TOOLTxD for on-chip debugging; SCK00/SCL00 for first SPI/I²C interface. |
| P11 | UART / SPI / debug | SI00/RxD0 for UARTA0; TOOLRxD for debugging; SDA00 for first I²C interface-supports full-duplex serial comms. |
| P10 | SPI / I²C | SCK00/SCL00 for master clock or I²C clock line; TS11 for capacitive touch-enables shared pin usage across protocols. |
| P22 | Analog input / touch | ANI2 analog input channel; TS20 capacitive touch input-supports simultaneous ADC sampling and touch detection. |
| P21 | Analog reference | ANI1/AVREFM pin; serves as negative reference for ADC or connects to external reference for precision measurements. |
| P20 | Analog reference | ANI0/AVREFP pin; serves as positive reference for ADC or connects to external reference-enables ratiometric sensor readings. |
| P40 | Debug interface | TOOL0 pin for on-chip debugging; enables programming and real-time trace without external JTAG adapter. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step command sequences (e.g., compare, add, branch) autonomously-reduces CPU wake-ups and extends battery life in sensor polling. |
| Capacitive Touch Unit (CTSU2La) | Supports up to 29 self-capacitance keys or matrix configurations using mutual capacitance-eliminates mechanical buttons and reduces BOM cost. |
| Data Flash with Background Operation | 2 KB data flash allows EEPROM-like nonvolatile storage; BGO enables program execution during rewrites-no firmware interruption during logging or calibration. |
| Flexible Clock System | High-speed (32 MHz ±1.0%), middle-speed (4/2/1 MHz adjustable), and low-speed (32.768 kHz) oscillators-enables dynamic clock scaling for power/performance trade-offs. |
| On-Chip Debugging Interface | Single-pin TOOL0 + TOOLRxD/TOOLTxD pins provide full debug visibility and flash programming-removes need for external debugger hardware. |
| Integrated Voltage Detectors | LVD0 and LVD1 monitor VDD and trigger interrupts or resets-prevents erratic behavior during brown-out conditions without external supervisor ICs. |
Applications
| Smart Home Remote Control | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered infrared/RF remote with touch-sensitive buttons and LED feedback. IC Role / Device Role / Timing Role: Main MCU executing touch scan, IR encoding, and low-power state management; RTC provides accurate time-stamping for usage logs. Use Value: 200 nA STOP mode and SMS-driven touch polling extend coin-cell battery life beyond 2 years; integrated CTSU2La removes external touch controller. | Use Scenario: Handheld pulse oximeter with OLED display, optical sensors, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Sensor hub aggregating ADC readings from photodiodes and thermistor; UARTA0 interfaces with BLE module; SNOOZE mode manages periodic sampling. Use Value: 10-bit ADC with internal 1.48 V reference enables precise ratiometric measurement of optical signals; 1.6–5.5 V operation supports single-cell Li-ion or alkaline power. |
| Industrial Panel Meter | Consumer Appliance Control Board |
Use Scenario: DIN-rail mounted meter displaying voltage/current/energy with capacitive membrane keypad. IC Role / Device Role / Timing Role: Primary controller handling analog front-end acquisition, touch UI, and RS-485 communication via UARTA1. Use Value: Dual I²C interfaces (IICA0/IICA1) connect to external EEPROM and display driver; TAU timers generate precise PWM for backlight dimming. | Use Scenario: Microwave oven control panel with touch sliders, buzzer feedback, and relay drivers. IC Role / Device Role / Timing Role: System-on-chip managing capacitive slider input, PCLBUZ0-driven audio alerts, and GPIO-controlled relays via port pins. Use Value: PCLBUZ0 pin drives piezo buzzer directly without external driver; open-drain I/O pins tolerate 6 V-simplifies interface to legacy appliance logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F102G4E2DNP#UA0 | 64 KB code flash, same 16-pin HWQFN package and peripheral set; identical power specs and CTSU2La capability. | Required when firmware exceeds 32 KB or future-proofing for feature expansion is needed; no PCB change required. | Select R7F102G4E2DNP#UA0 if application demands larger firmware space while retaining identical pinout, power profile, and touch performance. |
| RL78/G13 R5F100LEAFB#30 | 16-pin LQFP package; 32 KB flash, 4 KB RAM; lacks CTSU2La and SNOOZE sequencer; higher STOP current (1.2 µA). | Suitable for basic control tasks without capacitive touch or ultra-low-power polling; requires different PCB layout and lacks touch integration. | Choose R5F100LEAFB#30 only for cost-sensitive designs where touch sensing is absent and 1.2 µA STOP current is acceptable. |
Compared with R7F102G4C2DNP#UA0, the R7F102G4E2DNP#UA0 offers double flash capacity with zero hardware redesign, while the R5F100LEAFB#30 sacrifices touch capability and ultra-low-power features for lower unit cost and legacy toolchain compatibility.
Availability
R7F102G4C2DNP#UA0 is available at Aetrix Electronics and suitable for smart home remotes, portable medical monitors, industrial panel meters, and consumer appliance control boards requiring stable component supply and long-term production continuity.
Supply support for R7F102G4C2DNP#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G22 product line targets cost-sensitive, battery-powered human-machine interface applications, emphasizing ultra-low power consumption, integrated capacitive touch, and simplified development through on-chip debugging and flexible clocking.
FAQ
What is the maximum operating frequency and accuracy of the high-speed on-chip oscillator in the R7F102G4C2DNP#UA0?
The R7F102G4C2DNP#UA0 high-speed on-chip oscillator supports up to 32 MHz with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = -20 to +85°C. This enables precise UART baud rate generation and deterministic real-time task scheduling without external crystals in many applications.
Does the R7F102G4C2DNP#UA0 support capacitive touch sensing, and how many keys can it handle?
Yes, the R7F102G4C2DNP#UA0 integrates the CTSU2La capacitive touch sensing unit, supporting up to 29 keys using either self-capacitance (one pin per key) or mutual-capacitance (matrix configuration) methods. All touch inputs operate within the 1.8–5.5 V VDD range and require no external components.
What are the memory resources available on the R7F102G4C2DNP#UA0, and does it support in-application programming?
The R7F102G4C2DNP#UA0 provides 32 KB code flash, 2 KB data flash, and 4 KB RAM. It supports self-programming with boot swapping and flash shield window protection, enabling secure firmware updates and field calibration without external programmers.
Can the R7F102G4C2DNP#UA0 operate from a single 1.8 V supply, and what peripherals remain functional at that voltage?
Yes, the R7F102G4C2DNP#UA0 operates from 1.6 to 5.5 V, so 1.8 V is fully supported. At 1.8 V, all core functions-including 32 KB flash, 4 KB RAM, 10-bit ADC, CTSU2La, UARTA, I²C, SPI, and STOP mode (200 nA)-remain fully operational per the datasheet specifications.
What debug interface does the R7F102G4C2DNP#UA0 use, and are external tools required?
The R7F102G4C2DNP#UA0 uses an on-chip debug interface accessible via P40 (TOOL0), P11 (TOOLRxD), and P12 (TOOLTxD) pins. No external JTAG or SWD adapter is needed-programming and real-time debugging are performed directly through these pins using Renesas' E2 studio and CS+ toolchains.
R7F102G4C2DNP#UA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-WFQFN Exposed Pad
- 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:
- 11
- 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 3x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F102G4C2DNP#UA0 FAQ
1.How can I place an order for R7F102G4C2DNP#UA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F102G4C2DNP#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 R7F102G4C2DNP#UA0 reliable?
The price and inventory of R7F102G4C2DNP#UA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F102G4C2DNP#UA0 is usually 5 days.
3.What payment methods are accepted for R7F102G4C2DNP#UA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F102G4C2DNP#UA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F102G4C2DNP#UA0?
R7F102G4C2DNP#UA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F102G4C2DNP#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 R7F102G4C2DNP#UA0?
For technical support, including R7F102G4C2DNP#UA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F102G4C2DNP#UA0 requirements.
6.How does Aetrix verify that R7F102G4C2DNP#UA0 is sourced from the original manufacturer or authorized distributors?
All R7F102G4C2DNP#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 R7F102G4C2DNP#UA0 meets industry standards.
7.What is the process for return or replacement of R7F102G4C2DNP#UA0?
All R7F102G4C2DNP#UA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F102G4C2DNP#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 R7F102G4C2DNP#UA0 part is unused and in its original packaging.
Return procedure for R7F102G4C2DNP#UA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F102G4C2DNP#UA0 Tags
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