Renesas R5F2136CSNFP#V0

Overview

R5F2136CSNFP#V0 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 128 KB flash program ROM, 10 KB RAM, and integrated touch sensor control unit (TSCU) supporting 28 electrostatic capacitive touch channels. It operates at up to 20 MHz (2.7–5.5 V) or 5 MHz (1.8–5.5 V), features hardware LIN bus support via UART0_0/UART0_1, and includes 10-bit × 12-channel A/D converter for embedded appliance control.

For engineers reviewing the R5F2136CSNFP#V0 datasheet, R5F2136CSNFP#V0 pinout, R5F2136CSNFP#V0 application, or R5F2136CSNFP#V0 equivalent, key selection criteria include its 64-pin LQFP package (PLQP0064KB-A), on-chip data flash with background operation (BGO), low-power stop mode (2.2 µA), and dedicated TSCU for touch-button interfaces in consumer electronics.

Technical Context

The R5F2136CSNFP#V0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte address space, with program ROM allocated across 08000h–27FFFh and data flash at 07000h–07FFFh (four 1-KB blocks).

Peripheral integration includes three 16-bit timers (RJ_0, RB2_0, RC_0), one 8-bit timer (RE2), dual UART0 channels, single UART2 with I²C/LIN modes, SSU/I²C shared interface, CRC calculator (CRC-CCITT/CRC-16), and event link controller (30 sources × 10 operation types) enabling autonomous peripheral coordination without CPU intervention.

Key Specifications

Pinout & Package

64-pin LQFP package (PLQP0064KB-A) with 0.5 mm pitch and 10 mm × 10 mm body size. Pin functions include multiplexed I/O, analog inputs (AN0–AN11), touch channels (CHxA0–CHxC, CH00–CH35), UART/SSU/I²C/LIN signal lines, and dedicated TSCU control pins (TRCCLK_0, TRCTRG_0, TRCIOA_0–TRCIOD_0).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F2136ASNFP and R5F21368SNFP, the R5F2136CSNFP#V0 provides maximum on-chip memory headroom for complex touch UIs, firmware updates via BGO, and multi-sensor data aggregation - critical for next-generation appliance platforms requiring field-upgradable features.

Availability

R5F2136CSNFP#V0 is available at Aetrix Electronics and suitable for home appliance control panels, office equipment keypads, and audio equipment remote interfaces requiring stable component supply, long-term lifecycle support, and qualified industrial-grade sourcing.

Supply support for R5F2136CSNFP#V0 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 applications.

The R8C/36T-A Group is designed for cost-effective, low-power embedded control in consumer electronics - emphasizing integrated touch sensing, LIN connectivity, and robust analog peripherals for appliance and audio systems.

FAQ

What is the operating temperature range for the R5F2136CSNFP#V0?

The R5F2136CSNFP#V0 is an N-version device rated for −20°C to +85°C ambient operating temperature. This specification is confirmed in Table 1.2 of the R01DS0055EJ0100 datasheet and applies specifically to the SNFP package variant (PLQP0064KB-A). The D-version (SDFP) extends to −40°C, but R5F2136CSNFP#V0 is not qualified for that range.

Does the R5F2136CSNFP#V0 support hardware LIN communication?

Yes, the R5F2136CSNFP#V0 integrates a dedicated HW-LIN_0 module that uses UART0_0 or UART0_1 combined with timer RJ_0 to implement full LIN 2.1/2.2 protocol handling in hardware. This eliminates software bit-banging and ensures precise timing compliance without CPU load - a confirmed feature in Section 1.1 and Table 1.2 of the datasheet.

How many touch channels does the TSCU support on the R5F2136CSNFP#V0?

The R5F2136CSNFP#V0's Touch Sensor Control Unit (TSCU) supports 28 electrostatic capacitive touch channels, as explicitly stated in Section 1.1 and Table 1.2. These are implemented across dedicated pins including CHxA0, CHxA1, CHxB, CHxC, and CH00–CH35, with system channel resources (CH × 4) allocated for internal TSCU operation.

What is the data flash endurance rating for the R5F2136CSNFP#V0?

The R5F2136CSNFP#V0 specifies 10,000 program/erase cycles for its on-chip data flash (1 KB × 4 blocks), as documented in Table 1.2 under "Flash memory" specifications. This endurance rating applies across the full operating voltage range (2.7–5.5 V) and is guaranteed per Renesas' qualification testing - distinct from the 1,000-cycle rating for program ROM.

Can the R5F2136CSNFP#V0 operate from a 1.8 V supply?

Yes, the R5F2136CSNFP#V0 supports 1.8 V minimum supply voltage, but only at reduced CPU clock speed: 5 MHz maximum when VCC = 1.8–5.5 V. At 1.8 V, high-speed peripherals like the 20 MHz-capable XIN oscillator are not functional; operation relies on the on-chip oscillators or lower-frequency external sources, as defined in Table 1.2 "Operating frequency / Power supply voltage".