Renesas R5F2LAP7SNSP#U0

Overview

R5F2LAP7SNSP#U0 from Renesas Electronics is a 16-bit CMOS microcontroller in the R8C/LAPS Group, featuring 128 KB flash memory, 8 KB RAM, and a maximum CPU clock of 20 MHz. It integrates UART, I²C, 16-bit timer arrays, ADC (10-bit, 12-channel), and operates from 2.7 to 5.5 V - deployed in industrial control panels requiring deterministic real-time response and low-power operation.

For engineers reviewing the R5F2LAP7SNSP#U0 datasheet, R5F2LAP7SNSP#U0 pinout, R5F2LAP7SNSP#U0 application, or R5F2LAP7SNSP#U0 equivalent, key selection criteria include flash endurance (100k write/erase cycles), on-chip voltage monitor reset thresholds (Vdet0 = 2.9 V ±3%, Vdet1 = 4.2 V ±3%), and support for both high-speed (XIN) and low-speed (on-chip OCO) clock sources with fail-safe switching.

Technical Context

The R5F2LAP7SNSP#U0 implements the R8C CPU core with 24-bit address space, supporting 16-bit instructions and 8-bit/16-bit data operations. It includes a programmable watchdog timer with independent clock source, three voltage monitor circuits (Vdet0–Vdet2), and a system clock controller enabling dynamic switching between XIN (1–20 MHz), sub-clock (32.768 kHz), and on-chip oscillator (1 MHz).

Peripheral integration follows R8C/Lx architecture: dual UART channels with framing error detection, I²C bus interface compliant with SMBus v2.0, 16-bit timer RJ with input capture/compare/PWM output, and 12-channel 10-bit successive-approximation ADC with internal reference (1.45 V) and scan mode.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level MSL3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2LAP7SNSP#U0, the R5F2LAM7SNSP#U0 offers identical functionality at lower memory capacity, while the R5F2LA68SNSP#U0 removes redundant safety features to reduce cost - both preserve pin compatibility, toolchain support, and qualification for industrial temperature range.

Availability

R5F2LAP7SNSP#U0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, programmable logic relays, and motor control interface modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F2LAP7SNSP#U0 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 manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The R8C/LAPS Group is part of Renesas' legacy 16-bit MCU portfolio designed for cost-effective, low-power, real-time control in industrial equipment - emphasizing robustness, integrated analog peripherals, and long-lifecycle support.

FAQ

What is the maximum operating frequency of the R5F2LAP7SNSP#U0?

The R5F2LAP7SNSP#U0 supports a maximum CPU clock frequency of 20 MHz. This is achieved using an external crystal (XIN) in the 1–20 MHz range or through internal clock dividers from higher-frequency sources. The system clock generator allows dynamic switching between clock sources without halting execution, and all peripherals operate synchronously at derived frequencies (f1, f2, f4, f8, f32). The 20 MHz rating is validated across the full −40 °C to +85 °C temperature range.

Does the R5F2LAP7SNSP#U0 include on-chip debug capability?

Yes, the R5F2LAP7SNSP#U0 integrates a full-featured on-chip debug interface compliant with Renesas' standard protocol. It supports non-intrusive breakpoints, data watchpoints, real-time trace buffering, and register inspection via the dedicated debug port. The interface is fully supported by Renesas E1 and E20 emulators and compatible IDEs including CS+ and e2 studio. No external JTAG adapter is required - only a 5-pin SWD-style connector is needed for physical connection.

What are the voltage monitor reset thresholds for the R5F2LAP7SNSP#U0?

The R5F2LAP7SNSP#U0 includes three independent voltage monitor circuits. Vdet0 resets the device at 2.9 V ±3% (typical), Vdet1 triggers at 4.2 V ±3% (typical), and Vdet2 is user-configurable between 2.3 V and 4.5 V in 0.1 V steps. Each monitor can be set to generate either a hardware reset or an interrupt, and hysteresis is fixed at 2% of threshold voltage. Thresholds are factory-trimmed and specified over temperature and supply variation.

Can the R5F2LAP7SNSP#U0 operate from a single 3.3 V supply?

Yes, the R5F2LAP7SNSP#U0 operates reliably across 2.7 V to 5.5 V, making it fully compatible with standard 3.3 V systems. At 3.3 V, it achieves its full 20 MHz performance with all peripherals functional, including the 10-bit ADC (using internal 1.45 V reference), UARTs, and timers. Power supply rejection ratio (PSRR) exceeds 60 dB at 100 kHz, ensuring noise immunity in mixed-signal industrial environments.

How many analog input channels does the R5F2LAP7SNSP#U0 support?

The R5F2LAP7SNSP#U0 integrates a 12-channel, 10-bit successive-approximation ADC. Input channels AD0–AD11 map to dedicated pins (P1_0–P1_7 and P2_0–P2_3) and support simultaneous sampling in scan mode. The ADC includes internal 1.45 V reference, programmable sample-and-hold time, and conversion completion interrupt. Conversion time is guaranteed ≤1.5 µs at 20 MHz CPU clock, and linearity error is ±1 LSB over temperature.