Renesas R5F212ACSDFA#V2

Overview

R5F212ACSDFA#V2 from Renesas Electronics is a 16-bit R8C/Tiny Series microcontroller in the R8C/2A Group, featuring 128 KB flash ROM, 7.5 KB RAM, and operation across -40°C to +85°C (D version). It integrates a 16×16-bit multiplier, 12-channel 10-bit ADC, dual 8-bit DACs, three UARTs, I²C/SSU, hardware LIN, and six advanced timers including complementary PWM for motor control. It targets embedded control in industrial appliances and office equipment.

For engineers reviewing the R5F212ACSDFA#V2 datasheet, R5F212ACSDFA#V2 pinout, R5F212ACSDFA#V2 application, or R5F212ACSDFA#V2 equivalent, key selection criteria include its D-grade temperature range, 64-pin LQFP (PLQP0064GA-A) package, on-chip debug support, flash endurance (1,000 write/erase cycles), and absence of on-chip data flash-distinguishing it from R8C/2B Group variants.

Technical Context

The R5F212ACSDFA#V2 implements the R8C/Tiny CPU core with 89 fundamental instructions and single-chip 1 Mbyte address space. Its clock system includes XIN/XOUT (up to 20 MHz), XCIN/XCOUT (32 kHz real-time clock), and dual on-chip oscillators (high-speed with frequency adjustment, low-speed).

Peripheral integration centers on deterministic timing control: Timer RD supports reset-synchronous and complementary PWM for three-phase motor drive; Timer RC and RF provide input capture and output compare; UART0–2 and I²C/SSU share pins for flexible serial routing; and the 12-channel ADC includes sample-and-hold for accurate signal acquisition.

Key Specifications

Pinout & Package

Package: 64-pin LQFP, PLQP0064GA-A (0.8 mm pitch, 14 mm × 14 mm body).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F212BCSDFA#V2, the R5F212ACSDFA#V2 omits data flash but retains identical program flash endurance and peripheral set; versus R5F212ACSNFA#V2, it delivers guaranteed operation down to -40°C - critical for outdoor or factory-floor deployment without thermal management overhead.

Availability

R5F212ACSDFA#V2 is available at Aetrix Electronics and suitable for industrial appliance control, office equipment motor drive, and smart home sensor hub applications requiring stable component supply and long-term manufacturing continuity.

Supply support for R5F212ACSDFA#V2 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 specializing in microcontrollers, analog, and power solutions for industrial, automotive, and enterprise systems.

The R8C/2A Group, including R5F212ACSDFA#V2, was designed for cost-sensitive, high-reliability embedded control in appliances and office equipment - emphasizing low EMI, integrated analog peripherals, and robust industrial temperature operation.

FAQ

What is the maximum operating frequency and supply voltage range for the R5F212ACSDFA#V2?

The R5F212ACSDFA#V2 operates at up to 20 MHz when supplied at 3.0–5.5 V, 10 MHz at 2.7–5.5 V, and 5 MHz at 2.2–5.5 V. Its minimum instruction execution time is 50 ns under the highest-frequency condition. These ratings are validated for the D-grade temperature range (-40°C to +85°C), and the device includes voltage detection circuits for power-on reset and brown-out protection.

Does the R5F212ACSDFA#V2 include on-chip data flash memory?

No, the R5F212ACSDFA#V2 belongs to the R8C/2A Group and contains only program flash ROM (128 KB). It does not integrate data flash. In contrast, R8C/2B Group parts like R5F212BCSDFA#V2 include two 1 KB data flash blocks rated for 10,000 write/erase cycles. The R5F212ACSDFA#V2 relies on EEPROM emulation in program flash or external nonvolatile memory for parameter storage.

Which package type and pin count does the R5F212ACSDFA#V2 use?

The R5F212ACSDFA#V2 uses a 64-pin LQFP package with 0.8 mm pin pitch and 14 mm × 14 mm body size, designated PLQP0064GA-A. This is distinct from the narrower-pitch PLQP0064KB-A (0.5 mm) and FLGA PTLG0064JA-A (0.65 mm) variants. Pin assignments match Figures 1.4 and Table 1.7 in the R8C/2A Group datasheet, with full compatibility across all 64-pin R8C/2A and R8C/2B variants.

Can the R5F212ACSDFA#V2 support hardware LIN communication?

Yes, the R5F212ACSDFA#V2 integrates a hardware LIN module that combines UART0 and Timer RA to implement LIN 2.0/2.1 physical layer signaling. It supports automatic sync-field detection, checksum calculation, and break-field generation without CPU intervention. This enables direct connection to standard LIN transceivers for automotive body electronics or industrial sub-networks - confirmed in Section 1.1.2 and Table 1.2 of the R8C/2A Group documentation.

What debug and programming interfaces are supported by the R5F212ACSDFA#V2?

The R5F212ACSDFA#V2 supports on-chip debug via a dedicated 5-pin interface (including RESET, MODE, and clock lines), enabling full read/write access to flash and RAM during development. It allows in-system programming and on-board flash rewrite using Renesas' E8 emulator or compatible tools. Debug features include breakpoint setting, step execution, and register inspection - all documented in the R8C/2A Group User's Manual and confirmed in Table 1.2's "Debug functions" entry.