Renesas R5F2136CCDFA#U0

Overview

R5F2136CCDFA#U0 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 128 KB program flash, 10 KB data flash (4 × 1 KB blocks with background operation), and 2.5 KB RAM. It operates at up to 20 MHz (V_CC = 2.7–5.5 V), features 12-channel 10-bit ADC, dual 8-bit DACs, LIN hardware module, and six timer units including complementary PWM-capable Timer RD for motor control. It targets embedded control in industrial appliances and audio systems.

For engineers reviewing the R5F2136CCDFA#U0 datasheet, R5F2136CCDFA#U0 pinout, R5F2136CCDFA#U0 application, or R5F2136CCDFA#U0 equivalent, key selection criteria include its −40°C to +85°C industrial temperature grade, 64-pin LQFP (PLQP0064GA-A) package, integrated voltage detection circuit, low-power wait/stop modes (down to 2.0 µA), and hardware LIN support tied to UART0 and Timer RA.

Technical Context

The R5F2136CCDFA#U0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte, with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash mapped to 03000h–03FFFh.

Peripheral integration includes three UART/clock-synchronous serial interfaces (UART0–2), I²C bus (shared with SSU), 14-bit watchdog timer with selectable low-speed on-chip oscillator, DTC with 39 activation sources, and Timer RE real-time clock supporting calendar timekeeping (seconds/minutes/hours/days).

Key Specifications

Pinout & Package

64-pin LQFP package (PLQP0064GA-A), 10 mm × 10 mm body, 0.5 mm lead pitch, exposed pad not specified. Pin functions are software-configurable per peripheral multiplexing; all I/O ports support programmable pull-up resistors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2136CCDFA#U0, the N-version alternative trades industrial temperature rating for lower cost, while the 96 KB variant reduces flash capacity but maintains full peripheral compatibility-both retain the same 64-pin LQFP footprint and real-time clock, LIN, and complementary PWM capabilities.

Availability

R5F2136CCDFA#U0 is available at Aetrix Electronics and suitable for home appliance motor control, industrial sensor nodes, audio equipment power management, and office equipment peripheral interface applications requiring stable component supply across extended product lifecycles.

Supply support for R5F2136CCDFA#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 is a global semiconductor leader specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.

The R8C/36C Group was designed for cost-sensitive, low-power embedded control in consumer and industrial equipment-emphasizing integrated analog peripherals, robust EMI/EMS performance, and hardware-assisted communication protocols like LIN.

FAQ

What is the operating temperature range of the R5F2136CCDFA#U0?

The R5F2136CCDFA#U0 is rated for −40°C to +85°C ambient operation, confirming its D-version industrial qualification. This range is validated per Renesas datasheet R01DS0018EJ0110 Rev.1.10 and applies across all specified supply voltages (1.8–5.5 V) and functional modes-including real-time clock operation with XCIN crystal and high-speed 20 MHz execution.

Does the R5F2136CCDFA#U0 support background operation for data flash writes?

Yes, the R5F2136CCDFA#U0 supports Background Operation (BGO) for its 10 KB data flash (four 1 KB blocks). This allows erase and write operations to execute concurrently with main program execution-critical for in-field firmware updates and data logging without system interruption. BGO is enabled via dedicated control registers per Renesas documentation.

Which pins on the R5F2136CCDFA#U0 support complementary PWM output?

The R5F2136CCDFA#U0 delivers complementary PWM via Timer RD on P2_0–P2_7: specifically TRDIOA0/TRDIOA1 (A-phase), TRDIOB0/TRDIOB1 (B-phase), and TRDIOC0/TRDIOC1 (C-phase), plus TRDIOD0/TRDIOD1 for dead-time control. These 6 pins are hardware-synchronized and support reset-synchronous and complementary PWM modes per datasheet section 1.1.2.

Can the R5F2136CCDFA#U0 be used as a LIN transceiver without external components?

No-the R5F2136CCDFA#U0 integrates a LIN protocol controller (hardware LIN module using UART0 and Timer RA), but requires an external LIN physical layer transceiver (e.g., TJA1020) for bus-level signal conditioning and ISO 17987 compliance. The MCU handles frame generation, checksum, and scheduling; the PHY handles voltage level translation and fault protection.

What is the minimum instruction execution time for the R5F2136CCDFA#U0 at maximum frequency?

At f(XIN) = 20 MHz and V_CC = 2.7–5.5 V, the R5F2136CCDFA#U0 achieves a minimum instruction execution time of 50 ns. This value is specified in Table 1.1 of the official datasheet and reflects the fastest single-cycle instruction latency under those electrical and clock conditions.