My Inquiry
My Account
Renesas R7F100GSN2DFB#BA0
- Part No.:
- R7F100GSN2DFB#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R7F100GSN2DFB#BA0.pdf
- Description:
- IC MCU 16BIT 768KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:576
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R7F100GSN2DFB#BA0 from Renesas is a 128-pin, ultra-low-power RL78/G23 16-bit MCU with 256 KB code flash, 8 KB data flash, and 24 KB RAM, operating from 1.6–5.5 V. It integrates capacitive touch sensing (up to 64 keys), 12-bit ADC (26 channels), dual 8-bit DACs, RTC, and multiple serial interfaces including UARTA (6 ch), IICA (10 ch), and CSI (8 ch), targeting battery-powered industrial HMI and sensor nodes.
For engineers reviewing the R7F100GSN2DFB#BA0 datasheet, R7F100GSN2DFB#BA0 pinout, R7F100GSN2DFB#BA0 application, or R7F100GSN2DFB#BA0 equivalent, key selection criteria include its 128-pin LFQFP package, -40°C to +85°C industrial temperature grade, STOP-mode wakeup time < 4 µs, and CTSU2L-based touch controller supporting mutual capacitance matrix operation without CPU intervention.
Technical Context
The R7F100GSN2DFB#BA0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). Its SNOOZE mode sequencer (SMS) executes up to 32 low-power processes using 21 command types-enabling sensor polling and threshold comparison while keeping CPU, flash, and RAM powered down.
Peripheral integration includes Logic & Event Link Controller (ELCL) for hardware-triggered signal routing between modules, Data Transfer Controller (DTC) with chain transfer support, and dual-voltage I/O (1.8/2.5/3.0 V compatible) with N-ch open-drain capability on select pins. The device uses a dedicated REGC capacitor for internal regulator stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at ultra-low power |
| Flash Memory | 256 KB code flash + 8 KB data flash; supports background operation (BGO) and 1M rewrite cycles |
| RAM | 24 KB on-chip RAM with 210-nA data retention current; sustains state in STOP mode for extended battery life |
| Operating Voltage | 1.6–5.5 V single supply; allows direct Li-ion or coin-cell operation without external regulators |
| Power Modes | HALT (41 µA/MHz), STOP (0.23 µA typ.), SNOOZE; enables sub-µA system-level sleep with peripheral autonomy |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) or mutual-capacitance (8×8 matrix, 64 keys); operates independently of CPU |
| ADC | 12-bit resolution, 26 input channels, internal 1.48 V reference and temperature sensor; eliminates need for external references |
| Timers | 16-bit TAU (16 ch), 32-bit interval timer (1×32-bit + 2×16-bit + 4×8-bit modes), RTC with alarm and correction; covers timing needs from microsecond PWM to calendar functions |
Pinout & Package
Package: 128-pin LFQFP (14 × 20 mm, 0.50-mm pitch), lead-free, RoHS-compliant, industrial-grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 / XT1 / VBAT / EI121 | Primary crystal oscillator input / backup battery input | Enables precise 32.768-kHz RTC timing and maintains RTC during main power loss |
| P122 / X2 / EXCLK / XT2 / EXCLKS / EI122 | Crystal oscillator output / external clock input | Supports high-accuracy main system clock (up to 32 MHz) or external clock injection |
| REGC | Internal LDO stabilization capacitor connection | Must be connected to VSS via 0.47–1 µF capacitor; failure causes unstable core voltage and reset instability |
| P30 / TSCAP / RTC1HZ / EI30 | Touch sense channel input / RTC 1-Hz output | Dedicated pin for CTSU2L charge-transfer sensing; also provides synchronized timekeeping signal |
| P60 / SCLA0 / CCD04 / EO60 | I²C bus clock / capacitive sensing channel / output | Shared function pin enabling simultaneous I²C communication and touch sensing on same physical line |
| P147 / ANI18 / IVCMP0 / EI147 | Analog input / comparator input / interrupt source | Supports analog monitoring with comparator-triggered wake-up, reducing polling overhead |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step autonomous sequences (e.g., ADC sampling → compare → GPIO toggle) without CPU wake-up, cutting average current by >90% in periodic sensing |
| Capacitive Touch Unit (CTSU2L) | Hardware-accelerated mutual/self-capacitance sensing with noise immunity; supports 64-key matrix with no firmware overhead or external components |
| Data Flash Background Operation (BGO) | Permits full program execution from code flash while rewriting data flash-enabling over-the-air parameter updates without system interruption |
| ELCL Event Routing | Configurable hardware interconnect between peripherals (e.g., ADC EOC → DMA trigger → UART TX start); eliminates CPU-mediated handshaking latency |
| Dual-Voltage I/O | Interface directly with 1.8 V, 2.5 V, or 3.0 V logic without level shifters-reducing BOM count and PCB area in mixed-voltage systems |
| Low-Power Oscillator Accuracy | ±1.0% high-speed on-chip oscillator (32 MHz) across 1.8–5.5 V and -20°C to +85°C-enables precise timing without external crystal in cost-sensitive designs |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: 128-pin MCU drives multi-layer capacitive touch overlay on factory-floor operator panels with ambient light compensation and glove-mode detection. IC Role / Device Role / Timing Role: R7F100GSN2DFB#BA0 serves as primary HMI controller, executing CTSU2L scanning, button debouncing, LED dimming via PWM, and Modbus RTU communication over UARTA. Use Value: Mutual capacitance matrix support (8×8) enables 64-key layouts in compact form factor; STOP-mode wakeup < 4 µs ensures immediate response to touch events. | Use Scenario: Battery-powered environmental monitor collects temperature, humidity, and CO₂ data every 10 seconds, transmits via UART to LoRaWAN gateway, and sleeps at 0.23 µA between samples. IC Role / Device Role / Timing Role: R7F100GSN2DFB#BA0 acts as sensor fusion hub-sequencing ADC reads, applying calibration coefficients from data flash, and managing RTC-triggered wakeups. Use Value: 210-nA RAM retention preserves calibration and network state across years of operation; BGO allows field-updatable sensor algorithms without firmware reload. |
| Energy Metering Interfaces | Programmable Logic Controllers (PLC) I/O Modules |
Use Scenario: DIN-rail mounted meter interface board conditions pulse inputs from utility meters, logs kWh data, and reports via RS-485 using isolated UARTA. IC Role / Device Role / Timing Role: R7F100GSN2DFB#BA0 functions as isolation-side controller-counting pulses via TAU edge capture, timestamping with RTC, and buffering data in 24 KB RAM. Use Value: 16-bit TAU with 16 channels supports concurrent pulse counting on multiple inputs; ±1.0% on-chip oscillator meets IEC 62053-21 Class 1 timing accuracy without crystal. | Use Scenario: Compact PLC expansion module adds 16 digital inputs and 8 relay outputs, communicating via Modbus ASCII over UARTA to main controller. IC Role / Device Role / Timing Role: R7F100GSN2DFB#BA0 serves as intelligent I/O processor-scanning inputs via GPIO interrupt, driving relays via controlled-current ports, and handling protocol framing. Use Value: Controlled-current drive ports (6–8 pins) sink up to 20 mA directly-eliminating external drivers for small-signal relays; ELCL links input edges to output toggles with zero CPU latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GSL2DFB#BA0 | Same 128-pin LFQFP package and CTSU2L, but with 384 KB code flash, 32 KB RAM, and 8 KB data flash | Required for larger firmware images (e.g., embedded web server, advanced encryption) or extended data logging buffers | Select when firmware size exceeds 256 KB or RAM usage exceeds 24 KB; identical pinout and peripheral set enable drop-in upgrade |
| R7F100GSJ2DFB#BA0 | Same 128-pin LFQFP package, but with 192 KB code flash, 20 KB RAM, and 8 KB data flash; reduced TAU channel count (12 vs. 16) | Suitable for cost-optimized implementations where fewer timer resources suffice (e.g., basic sensor polling without complex PWM generation) | Choose for lower-cost BOM where flash/RAM headroom and full TAU channel count are not required; shares identical footprint and thermal profile |
Compared with R7F100GSL2DFB#BA0 and R7F100GSJ2DFB#BA0, the R7F100GSN2DFB#BA0 delivers optimal balance of memory (256 KB flash/24 KB RAM), timer resources (16-channel TAU), and capacitive touch capacity (64-key matrix) for mid-tier industrial HMI and sensor edge nodes-without over-provisioning or under-specifying critical peripherals.
Availability
R7F100GSN2DFB#BA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, energy metering interfaces, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R7F100GSN2DFB#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G23 product line targets ultra-low-power embedded applications demanding robust capacitive touch, rich analog integration, and secure firmware update capability-designed specifically for battery-operated industrial controls and human-machine interfaces.
FAQ
What is the maximum operating frequency and corresponding instruction cycle time for the R7F100GSN2DFB#BA0?
The R7F100GSN2DFB#BA0 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator. At this speed, the minimum instruction execution time is 0.03125 µs. This timing is achievable across the full industrial temperature range (-40°C to +85°C) and supply voltage (1.8–5.5 V) with ±1.0% oscillator accuracy, enabling deterministic real-time response in time-critical control loops.
Does the R7F100GSN2DFB#BA0 support hardware-accelerated capacitive touch sensing, and what configurations are available?
Yes, the R7F100GSN2DFB#BA0 integrates the CTSU2L capacitive touch sensing unit. It supports both self-capacitance (up to 32 independent keys) and mutual capacitance (8×8 matrix, up to 64 keys) configurations. The unit operates autonomously-requiring no CPU involvement during scan-and includes built-in noise cancellation, automatic drift compensation, and adjustable sensitivity. All touch processing occurs in dedicated hardware, preserving CPU bandwidth for application tasks.
What power-saving modes are available on the R7F100GSN2DFB#BA0, and what is the typical current consumption in each?
The R7F100GSN2DFB#BA0 offers HALT (41 µA/MHz), STOP (0.23 µA typical), and SNOOZE modes. In STOP mode, RAM contents are retained at 210 nA for 4 KB of RAM. SNOOZE mode enables peripheral-driven autonomous operation (e.g., ADC sampling, comparison, GPIO toggle) while CPU, flash, and RAM remain powered down-achieving sub-microamp average current in periodic sensing applications. Wakeup from STOP is guaranteed within 4 µs.
Can the R7F100GSN2DFB#BA0 perform background data flash writes while executing code from main flash memory?
Yes, the R7F100GSN2DFB#BA0 supports Background Operation (BGO) for data flash. Instructions can be fetched and executed from code flash memory while data flash is being rewritten-enabling seamless field updates of calibration tables, configuration parameters, or firmware metadata without halting application execution. The data flash endurance is rated at 1,000,000 write/erase cycles (typical), and BGO is managed via dedicated control registers and interrupt flags.
What is the purpose of the REGC pin on the R7F100GSN2DFB#BA0, and how must it be connected?
The REGC pin on the R7F100GSN2DFB#BA0 connects to the internal LDO's stabilization capacitor. It must be connected to VSS via a 0.47 µF to 1 µF ceramic capacitor placed as close as possible to the pin. Failure to install this capacitor results in unstable internal core voltage, unpredictable reset behavior, and potential failure to enter or exit low-power modes correctly. This requirement is mandatory for all operating conditions and is specified in the device's electrical characteristics and layout guidelines.
R7F100GSN2DFB#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- RL78/G23
- Packaging:
- Tray
- 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:
- 116
- Program Memory Size:
- 768KB (768K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 26x10b, 8x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GSN2DFB#BA0 FAQ
1.How can I place an order for R7F100GSN2DFB#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GSN2DFB#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 R7F100GSN2DFB#BA0 reliable?
The price and inventory of R7F100GSN2DFB#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GSN2DFB#BA0 is usually 5 days.
3.What payment methods are accepted for R7F100GSN2DFB#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7F100GSN2DFB#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7F100GSN2DFB#BA0?
R7F100GSN2DFB#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7F100GSN2DFB#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 R7F100GSN2DFB#BA0?
For technical support, including R7F100GSN2DFB#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GSN2DFB#BA0 requirements.
6.How does Aetrix verify that R7F100GSN2DFB#BA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GSN2DFB#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 R7F100GSN2DFB#BA0 meets industry standards.
7.What is the process for return or replacement of R7F100GSN2DFB#BA0?
All R7F100GSN2DFB#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GSN2DFB#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 R7F100GSN2DFB#BA0 part is unused and in its original packaging.
Return procedure for R7F100GSN2DFB#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7F100GSN2DFB#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…
