Renesas R5F2L3A8CNFP#11

Overview

R5F2L3A8CNFP#11 from Renesas Electronics is a 16-bit R8C/L3AC Group microcontroller featuring an R8C CPU core, 64 KB flash program memory, 8 KB RAM, and integrated LCD drive control supporting up to 8 common and 56 segment outputs. It includes 20-channel 10-bit ADC, dual 8-bit DACs, LIN module, UART/I²C/SSU serial interfaces, and operates from 1.8–5.5 V across -20°C to +85°C for embedded appliance and industrial HMI applications.

For engineers reviewing the R5F2L3A8CNFP#11 datasheet, R5F2L3A8CNFP#11 pinout, R5F2L3A8CNFP#11 application, or R5F2L3A8CNFP#11 equivalent, key selection criteria include its 100-pin LQFP package with 88 programmable I/Os, high-current drive capability (16 pins), real-time clock (Timer RE), background operation (BGO) data flash, and integrated voltage multiplier for LCD bias generation.

Technical Context

The R5F2L3A8CNFP#11 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware multiplier, and 1 Mbyte address space. It supports four clock sources: external XIN (up to 20 MHz), 32 kHz XCIN, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - enabling flexible power-mode management including wait, stop, and power-off modes.

Peripheral integration includes Timer RD (16-bit ×2 with 6-pin PWM, complementary/sawtooth modulation), Timer RG (16-bit phase-counting/PWM), DTC (1-channel data transfer controller with 38 activation sources), and dual comparator B circuits. The device uses dedicated registers (e.g., LSE1–LSE3) to configure LCD bias (1/2, 1/3, 1/4) and duty (static, 1/2–1/8), with VL1–VL4 and CL1/CL2 pins supporting internal voltage multiplication.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PLQP0100KB-A, 0.5 mm pitch), RoHS-compliant, surface-mount.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar MCU applications.

Compared with R5F2L3A8CNFP#11, the R5F2L3A8CNFA#11 offers identical functionality in a mechanically distinct package, while the R5F2L388CNFP#11 trades I/O count, LCD scale, and peripheral depth for smaller footprint and lower unit cost - making it viable only when those features are unused.

Availability

R5F2L3A8CNFP#11 is available at Aetrix Electronics and suitable for appliance control panels, industrial HMIs, home audio front ends, and smart meter displays requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for R5F2L3A8CNFP#11 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 connectivity solutions for automotive, industrial, and IoT markets.

The R8C/L3AC Group targets cost-sensitive, LCD-equipped embedded systems requiring robust real-time control, low-power operation, and integrated human interface peripherals - designed specifically for appliance and industrial HMI applications.

FAQ

What is the operating temperature range for R5F2L3A8CNFP#11?

The R5F2L3A8CNFP#11 is an N-version device rated for -20°C to +85°C ambient operating temperature. This specification is confirmed in Table 1.6 of the official datasheet (R01DS0095EJ0101 Rev.1.01), and applies to all electrical characteristics unless otherwise noted. Industrial applications requiring wider range should consider the D-version variant R5F2L3A8CDFP#11.

Does R5F2L3A8CNFP#11 support in-circuit debugging?

Yes, the R5F2L3A8CNFP#11 includes full on-chip debug functionality per Section 1.1 and Table 1.6 of its datasheet. It supports break, step, memory/register access, and flash programming via the single-wire debug interface using Renesas E1/E20 emulators - no external debug header required beyond standard SWD pins (VCC, GND, TCK, TDO).

How many ADC channels does R5F2L3A8CNFP#11 have, and what is their resolution?

The R5F2L3A8CNFP#11 integrates a 10-bit successive-approximation ADC with 20 input channels, as specified in Table 1.5 and Figure 1.8 of the datasheet. All channels support sample-and-hold and sweep mode, enabling simultaneous multi-channel acquisition sequences without CPU intervention.

Can R5F2L3A8CNFP#11 drive a 1/8-duty LCD without external components?

Yes - the R5F2L3A8CNFP#11 supports 1/8-duty LCD operation natively via its integrated LCD controller and voltage multiplier. As confirmed in Table 1.3 and Section 1.1.2, the R8C/L3AC Group provides up to 8 common outputs (COM0–COM7), and the VL1–VL4/CL1/CL2 pins enable internal bias generation for 1/2, 1/3, or 1/4 bias ratios compatible with 1/8-duty drive.

What is the maximum frequency of the external crystal supported by R5F2L3A8CNFP#11?

The R5F2L3A8CNFP#11 supports external crystal oscillation up to 20 MHz on the XIN/XOUT pins, as stated in Table 1.6 ("Operating Frequency/Supply Voltage") and validated in the "Clock generation circuits" section of Table 1.4. At this frequency and VCC = 2.7–5.5 V, the minimum instruction execution time is 50 ns.