Renesas R7F100GLL2DFB#AA0

Overview

R7F100GLL2DFB#AA0 from Renesas is a 64-pin LFQFP, 512-KB flash, 48-KB RAM RL78/G23 16-bit microcontroller operating at 1.6–5.5 V, featuring 210-nA data retention current, 41-µA/MHz active current, and integrated capacitive touch sensing (CTSU2L) for human-machine interface applications in industrial temperature range (−40 to +85°C).

For engineers reviewing the R7F100GLL2DFB#AA0 datasheet, R7F100GLL2DFB#AA0 pinout, R7F100GLL2DFB#AA0 application, or R7F100GLL2DFB#AA0 equivalent, key selection considerations include its 512-KB code flash with 8-KB data flash, 16-bit TAU timers (up to 16 channels), dual DAC outputs, and support for UARTA/LIN, IICA, and CSI interfaces in a 10 × 10 mm 0.5-mm-pitch package.

Technical Context

The R7F100GLL2DFB#AA0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). It integrates a SNOOZE mode sequencer (SMS) enabling low-power background processing of up to 32 operations without CPU wake-up.

Peripheral integration includes a Logic and Event Link Controller (ELCL) for configurable signal routing between peripherals, a Data Transfer Controller (DTC) with chain transfer capability, and a capacitive sensing unit (CTSU2L) supporting both self- and mutual-capacitance modes-up to 32 keys (self) or 64 keys (8×8 matrix)-with operation at VDD = 1.8–5.5 V.

Key Specifications

Pinout & Package

Package: LFQFP-64, 10 × 10 mm body, 0.50-mm pitch, exposed pad recommended to be connected to VSS.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R7F100GLL3CFB#AA0, the R7F100GLL2DFB#AA0 trades extended temperature rating for lower cost and same footprint; versus R7F100GML2DFB#AA0, it offers identical core performance in a smaller 64-pin package-reducing PCB area and BOM count where I/O headroom is sufficient.

Availability

R7F100GLL2DFB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, and home appliance control boards requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R7F100GLL2DFB#AA0 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 delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial HMI applications-emphasizing ultra-low active/standby current, integrated capacitive touch, and robust peripheral flexibility.

FAQ

What is the maximum operating frequency and corresponding supply voltage range for the R7F100GLL2DFB#AA0?

The R7F100GLL2DFB#AA0 operates at up to 32 MHz using its high-speed on-chip oscillator, with guaranteed functionality across its full 1.6–5.5 V VDD range. At 32 MHz, minimum VDD is 2.7 V per datasheet specifications; operation below 2.7 V requires reduced frequency scaling (e.g., 24 MHz at 2.4 V, 16 MHz at 1.8 V). The R7F100GLL2DFB#AA0 maintains ±1.0% oscillator accuracy over VDD = 1.8–5.5 V and TA = −20 to +85°C.

Does the R7F100GLL2DFB#AA0 support hardware-based encryption or secure boot features?

No, the R7F100GLL2DFB#AA0 does not integrate hardware cryptographic accelerators, TRNG, or secure boot ROM. It supports flash security features including block erase/write prohibition and flash shield window for IP protection, but lacks AES/SHA engines or public-key acceleration. For secure firmware update or data confidentiality, external secure elements or software-based libraries must be implemented. The R7F100GLL2DFB#AA0 prioritizes ultra-low power and analog integration over cryptographic capability.

How many capacitive touch channels can the R7F100GLL2DFB#AA0 support in mutual-capacitance mode?

The R7F100GLL2DFB#AA0 supports up to 64 capacitive touch keys in mutual-capacitance mode using an 8 × 8 electrode matrix configuration via its CTSU2L peripheral. This requires dedicated CTSU2L pins (e.g., P60–P62, P30–P31, and other CCDx-capable ports) configured as either transmit or receive electrodes. Self-capacitance mode supports up to 32 independent keys. The R7F100GLL2DFB#AA0's CTSU2L operates at VDD = 1.8–5.5 V and includes automatic drift compensation and noise rejection algorithms.

What debug interface options are available for the R7F100GLL2DFB#AA0 during development?

The R7F100GLL2DFB#AA0 supports on-chip debugging via the standard 6-pin E1/E20 debug interface (SWD-compatible), using pins P40 (TOOL0), P11 (TOOLRxD), and P12 (TOOLTxD) in conjunction with RESET, VDD, and VSS. It does not support JTAG. Debug capabilities include full breakpoint control, real-time variable watch, flash programming, and low-power mode entry/exit tracing. Renesas' CS+ and e2 studio IDEs provide native support for the R7F100GLL2DFB#AA0 debug workflow.

Can the R7F100GLL2DFB#AA0's data flash be rewritten while the CPU executes code from main flash memory?

Yes, the R7F100GLL2DFB#AA0 supports Background Operation (BGO) for its 8 KB data flash, allowing the CPU to execute instructions from code flash memory while simultaneously erasing or programming data flash sectors. This enables seamless firmware parameter updates, logging, or calibration storage without halting application execution. The R7F100GLL2DFB#AA0 guarantees 1,000,000 write/erase cycles for data flash and includes error detection during BGO operations.