Renesas R5F21336TNFP#V2

Overview

R5F21336TNFP#V2 from Renesas is a 16-bit R8C CPU core MCU with 32 KB program flash, 2.5 KB RAM, and 4 KB data flash (1 KB × 4 blocks) supporting background operation (BGO). It operates at up to 20 MHz (VCC = 2.7–5.5 V), integrates 12-channel 10-bit ADC, LIN hardware module, and electrostatic capacitive touch detection for embedded control in consumer appliances.

For engineers reviewing the R5F21336TNFP#V2 datasheet, R5F21336TNFP#V2 pinout, R5F21336TNFP#V2 application, or R5F21336TNFP#V2 equivalent, key selection criteria include its 32-pin LQFP package, voltage detection circuit with selectable levels, low-power wait/stop modes (3.5 µA / 2.0 µA), and integrated sensor control unit for touch interface design.

Technical Context

The R5F21336TNFP#V2 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte (00000h–FFFFFh), with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash at 03000h–03FFFh.

It features three independent clock sources - XIN crystal oscillator, high-speed on-chip oscillator (frequency-adjustable), and low-speed on-chip oscillator - with selectable frequency dividers (1/2/4/8/16) and oscillation stop detection. Peripheral timing is managed via Timer RA (8-bit), RB (8-bit PWM-capable), and RC (16-bit with 4 capture/compare registers).

Key Specifications

Pinout & Package

Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm body, 0.8 mm pin pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F21335TNFP and R5F21336TDFP, the R5F21336TNFP#V2 provides the highest flash capacity in the N-grade temperature range, enabling complex feature sets while maintaining compatibility with existing 32-pin LQFP layouts and toolchains.

Availability

R5F21336TNFP#V2 is available at Aetrix Electronics and suitable for home appliance control, audio equipment interfaces, and office equipment UI requiring stable component supply across long production lifecycles.

Supply support for R5F21336TNFP#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The R8C/33T Group, including R5F21336TNFP#V2, was designed for cost-sensitive, low-power embedded control in consumer electronics - emphasizing integrated analog peripherals, capacitive touch, and LIN connectivity without external components.

FAQ

What is the maximum operating frequency of the R5F21336TNFP#V2 and under what voltage conditions?

The R5F21336TNFP#V2 achieves a maximum operating frequency of 20 MHz when powered at VCC = 2.7 V to 5.5 V. At lower supply voltages (1.8 V to 5.5 V), the guaranteed maximum frequency reduces to 5 MHz per Renesas specification R01DS0046EJ0110. This dual-frequency rating allows flexible power/performance trade-offs in battery-powered or wide-input-range designs using the R5F21336TNFP#V2.

Does the R5F21336TNFP#V2 support in-system programming of its data flash during normal operation?

Yes, the R5F21336TNFP#V2 supports background operation (BGO) for data flash, allowing erase and program operations on its 4 KB data flash (1 KB × 4 blocks) while simultaneously executing application code from program ROM. This capability is confirmed in Section 1.1 and Table 1.2 of the official datasheet and enables reliable firmware parameter storage and over-the-air update handling in the R5F21336TNFP#V2 without halting system functions.

How many analog input channels does the integrated ADC in the R5F21336TNFP#V2 support, and what is its resolution?

The R5F21336TNFP#V2 integrates a 10-bit resolution successive-approximation ADC with 12 dedicated analog input channels (AN0–AN11), plus additional channels accessible via CHxA/B/C pins for capacitive sensing. The ADC includes sample-and-hold functionality and sweep mode for automatic channel sequencing - all documented in Table 1.2 and Section 1.1.2 of the R01DS0046EJ0110 datasheet for the R5F21336TNFP#V2.

What peripheral modules are used by the hardware LIN interface in the R5F21336TNFP#V2?

The hardware LIN module in the R5F21336TNFP#V2 is implemented using Timer RA and UART0, as explicitly stated in Table 1.2 and Section 1.1.2 of the R01DS0046EJ0110 datasheet. This integration eliminates the need for an external LIN transceiver in basic implementations and ensures deterministic timing for LIN 2.1 frame generation and reception within the R5F21336TNFP#V2.

Is the R5F21336TNFP#V2 pin-compatible with other members of the R8C/33T Group, such as R5F21334TNFP or R5F21335TNFP?

Yes, the R5F21336TNFP#V2 is pin-compatible with R5F21334TNFP and R5F21335TNFP, as all share the identical PLQP0032GB-A (32-pin LQFP) package and fully overlapping pin assignments per Figure 1.3 and Table 1.4 in the R01DS0046EJ0110 datasheet. This allows direct substitution in existing PCB layouts when upgrading firmware storage capacity - the R5F21336TNFP#V2 maintains identical mechanical and electrical interface behavior while providing increased 32 KB program flash.