Renesas R7F100GFF2DFP#HA0
- Part No.:
- R7F100GFF2DFP#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R7F100GFF2DFP#HA0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7F100GFF2DFP#HA0 from Renesas is an RL78/G23 16-bit microcontroller with 192 KB code flash, 8 KB data flash, and 24 KB RAM, operating at 1.6–5.5 V supply and supporting -40 to +85°C ambient. It integrates capacitive touch sensing (CTSU2L), 12-bit ADC (26 channels), dual 8-bit DACs, RTC, and ultra-low-power STOP mode (210 nA data retention). Used in battery-powered HMI control panels requiring low standby current and integrated analog peripherals.
For engineers reviewing the R7F100GFF2DFP#HA0 datasheet, R7F100GFF2DFP#HA0 pinout, R7F100GFF2DFP#HA0 application, or R7F100GFF2DFP#HA0 equivalent, key selection criteria include its 44-pin LQFP-0.8mm package, consumer-grade temperature range (2D), embossed tape packaging (#HA0), and verified support for SNOOZE mode sequencer-driven sensor polling without CPU wake-up.
Technical Context
The R7F100GFF2DFP#HA0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, enabling 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 preconfigured commands-including ADC sampling, comparison, and conditional branching-without CPU, RAM, or flash activation, reducing active power during periodic sensing tasks.
Peripheral integration includes a Logic & Event Link Controller (ELCL) for hardware-triggered signal routing between timers, ADC, and communication interfaces; dual UARTA channels with LIN-bus support; and a configurable CTSU2L unit supporting both self-capacitance (32 keys) and mutual-capacitance (8×8 matrix) touch detection under 1.8–5.5 V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and ultra-low-power sub-MHz operation. |
| Memory Configuration | 192 KB code flash (2 KB blocks), 8 KB data flash (1M rewrite cycles), 24 KB RAM; supports secure boot swapping and background data flash writes. |
| Power Modes | HALT (41 µA/MHz), STOP (210 nA RAM retention), SNOOZE (sub-µA event-driven sequencing); eliminates need for external wake-up controllers. |
| Analog Peripherals | 12-bit ADC (26 channels, internal 1.48 V ref), dual 8-bit DACs (0–VDD output), 2-channel comparator with selectable internal/external reference. |
| Capacitive Sensing | CTSU2L unit supporting self-capacitance (32 keys) and mutual-capacitance (64-key 8×8 matrix); operates down to 1.8 V with built-in noise suppression. |
| Package & Temp Range | 44-pin LQFP (10×10 mm, 0.80-mm pitch), consumer-grade (-40 to +85°C); #HA0 denotes embossed tape packaging for automated assembly. |
Pinout & Package
Package: 44-pin plastic LQFP (10 × 10 mm, 0.80-mm pitch), RoHS-compliant, consumer temperature grade (2D).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ADC input / UARTA TX / Timer input | Primary serial interface output and analog sensing channel; supports TI00 timer capture and TxD1 transmission simultaneously via peripheral redirection. |
| P01 | ADC input / UARTA RX / Timer output | Complementary UARTA channel with TO00 timer output; enables full-duplex LIN-bus communication while monitoring analog signals. |
| P10–P17 | SAU/SPI/I²C/UARTA I/O group | Configurable serial array unit pins supporting multiple protocols; allows concurrent SPI (SCK00/SI00/SO00) and I²C (SCL00/SDA00) on same port with software-defined function mapping. |
| P30 | TSCAP / RTC1HZ / SI11 / SCK11 | Dedicated touch-sensing capacitor input with RTC tick output and secondary SPI interface; enables synchronized capacitive measurement and time-stamped event logging. |
| P60–P61 | I²C bus (SCLA0/SDAA0) | Hardware I²C master/slave interface with clock stretching support; used for connecting EEPROMs, sensors, or display controllers without bit-banging overhead. |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE Mode Sequencer (SMS) | Executes 32-step sequences of ADC reads, comparisons, and conditional jumps autonomously-reducing system-level power by eliminating CPU wake-ups for periodic sensor polling. |
| Capacitive Touch Unit (CTSU2L) | Supports both self- and mutual-capacitance topologies with automatic noise cancellation; enables robust touch buttons/sliders on PCBs without dedicated touch ICs or shielding. |
| Data Flash Background Operation | Permits full program execution from code flash while rewriting data flash-enabling seamless firmware parameter updates and logging without interrupting real-time control loops. |
| ELCL Hardware Event Routing | Connects peripheral outputs (e.g., timer overflow, ADC end-of-conversion) directly to inputs (e.g., DAC trigger, interrupt request) without CPU intervention-reducing latency and ISR load. |
| Multi-Voltage I/O Support | Ports tolerate 1.8 V, 2.5 V, and 3.0 V logic levels when VDD = 1.6–5.5 V; simplifies interfacing with mixed-voltage peripherals like legacy sensors or displays. |
Applications
| Smart Appliance Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: A kitchen oven's front-panel touch interface with backlight dimming, temperature display, and safety interlock monitoring. IC Role / Device Role / Timing Role: R7F100GFF2DFP#HA0 serves as the primary HMI controller, executing capacitive touch scanning, driving segmented LCD via SAU, and managing thermal cutoff logic using RTC alarms and ADC-based thermistor readings. Use Value: Integrated CTSU2L eliminates external touch controller; 24 KB RAM stores UI state and calibration tables; STOP mode extends battery backup life during standby. | Use Scenario: Wireless environmental monitor deployed in HVAC ducts, measuring temperature, humidity, and airflow with local alarm triggering. IC Role / Device Role / Timing Role: R7F100GFF2DFP#HA0 acts as sensor fusion hub-sequencing ADC reads across multiple channels, applying digital filtering, and generating UARTA packets for LoRaWAN gateway transmission. Use Value: SNOOZE mode reduces average current to <1 µA during 10-second sampling intervals; dual DACs calibrate analog sensor offsets in real time. |
| Home Automation Gateway | Portable Medical Device |
Use Scenario: Battery-powered Zigbee-to-Matter bridge aggregating data from door/window sensors, motion detectors, and smart plugs. IC Role / Device Role / Timing Role: R7F100GFF2DFP#HA0 functions as protocol translator and local decision engine-running BLE advertisement parsing, Zigbee frame validation, and Matter attribute caching in RAM. Use Value: 192 KB flash hosts dual-stack firmware; 8 KB data flash stores network credentials and device certificates securely; low-power STOP mode preserves state during radio sleep cycles. | Use Scenario: Handheld pulse oximeter with OLED display, optical sensor interface, and USB-C charging status feedback. IC Role / Device Role / Timing Role: R7F100GFF2DFP#HA0 controls LED drivers (via DACs), samples photodiode signals (ADC), renders UI (SAU-driven SPI), and manages USB PD negotiation via UARTA. Use Value: Dual 8-bit DACs drive red/IR LEDs with precise current control; 12-bit ADC resolves small signal variations; 44-pin LQFP provides sufficient I/O for sensor, display, and charging IC interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7F100GFL2DFP#HA0 | Same 44-pin LQFP package and 2D temp grade, but with 384 KB flash, 48 KB RAM, and identical peripheral set. | Targeted at designs requiring larger firmware image size or more complex RTOS-based applications with extended buffer requirements. | Select when future firmware growth or additional middleware (e.g., TLS stack) necessitates >192 KB flash and >24 KB RAM. |
| R7F100GFJ2DFP#HA0 | Same package and temp grade, but with 256 KB flash, 24 KB RAM, and identical peripherals including CTSU2L and SNOOZE sequencer. | Offers balanced upgrade path for applications needing moderate flash expansion without RAM increase-ideal for adding BLE stack or enhanced UI assets. | Choose for incremental feature expansion where 256 KB flash suffices and existing RAM allocation remains adequate. |
Compared with R7F100GFF2DFP#HA0, R7F100GFL2DFP#HA0 provides 2× RAM and 2× flash for complex embedded OS use, while R7F100GFJ2DFP#HA0 delivers +33% flash headroom with unchanged RAM-making it optimal for feature-rich firmware within existing memory constraints.
Availability
R7F100GFF2DFP#HA0 is available at Aetrix Electronics and suitable for smart appliance control panels, industrial sensor nodes, home automation gateways, portable medical devices, and battery-backed HMI systems requiring stable component supply and long-term production continuity.
Supply support for R7F100GFF2DFP#HA0 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 automotive, industrial, and IoT markets.
The RL78/G23 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated human-machine interface and sensor-edge applications-emphasizing ultra-low active/standby current, integrated analog, and hardware-accelerated event processing.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R7F100GFF2DFP#HA0?
The R7F100GFF2DFP#HA0 supports up to 32 MHz operation using its high-speed on-chip oscillator, with guaranteed functionality across its full 1.6–5.5 V supply range. At 32 MHz, minimum instruction execution time is 0.03125 µs; accuracy is ±1.0% over -20 to +85°C ambient and 1.8–5.5 V VDD. The MCU also supports ultra-low-speed 32.768 kHz operation for RTC and deep-sleep timing.
Does the R7F100GFF2DFP#HA0 support hardware-based capacitive touch sensing, and what configurations are available?
Yes, the R7F100GFF2DFP#HA0 integrates the CTSU2L capacitive touch sensing unit supporting both self-capacitance (up to 32 keys on single pins) and mutual-capacitance (up to 64 keys in 8×8 matrix) modes. It operates from 1.8–5.5 V, includes built-in noise suppression, and requires no external components beyond standard decoupling-enabling direct PCB trace-based touch interfaces without dedicated touch ICs.
How does the SNOOZE mode sequencer (SMS) in the R7F100GFF2DFP#HA0 reduce system power consumption?
The SNOOZE mode sequencer in the R7F100GFF2DFP#HA0 executes up to 32 preloaded commands-including ADC conversions, value comparisons, and conditional branching-without waking the CPU, flash, or RAM. This enables autonomous periodic sensor polling at sub-microamp average current, eliminating CPU idle-loop overhead and interrupt latency, making it ideal for battery-powered environmental monitors and touch interfaces.
What serial communication interfaces are integrated into the R7F100GFF2DFP#HA0, and which support LIN-bus physical layer compliance?
The R7F100GFF2DFP#HA0 integrates three UARTA channels, four to ten I²C/Simplified I²C channels, and three to eight Simplified SPI (CSI) channels. Among these, UARTA channels explicitly support LIN-bus protocol-including break detection, sync field handling, and checksum generation-enabling direct connection to LIN transceivers for automotive body electronics and industrial control networks.
Is the R7F100GFF2DFP#HA0 pin-compatible with other RL78/G23 variants in the same 44-pin LQFP package?
Yes, all RL78/G23 variants in the 44-pin LQFP-0.8mm package-including R7F100GFF2DFP#HA0, R7F100GFJ2DFP#HA0, and R7F100GFL2DFP#HA0-are pin-compatible. They share identical pin count, mechanical footprint, power/ground assignments, and peripheral multiplexing; only flash/RAM capacities and minor feature enablements differ, allowing drop-in firmware upgrades without PCB revision.
R7F100GFF2DFP#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G23
- Packaging:
- Tape & Reel (TR)
- 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:
- 37
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b/12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7F100GFF2DFP#HA0 FAQ
1.How can I place an order for R7F100GFF2DFP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7F100GFF2DFP#HA0 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 R7F100GFF2DFP#HA0 reliable?
The price and inventory of R7F100GFF2DFP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7F100GFF2DFP#HA0 is usually 5 days.
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Once your R7F100GFF2DFP#HA0 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 R7F100GFF2DFP#HA0?
For technical support, including R7F100GFF2DFP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7F100GFF2DFP#HA0 requirements.
6.How does Aetrix verify that R7F100GFF2DFP#HA0 is sourced from the original manufacturer or authorized distributors?
All R7F100GFF2DFP#HA0 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 R7F100GFF2DFP#HA0 meets industry standards.
7.What is the process for return or replacement of R7F100GFF2DFP#HA0?
All R7F100GFF2DFP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7F100GFF2DFP#HA0, 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 R7F100GFF2DFP#HA0 part is unused and in its original packaging.
Return procedure for R7F100GFF2DFP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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