Renesas R5F1036AASM#55

Overview

R5F1036AASM#55 from Renesas Electronics is a 20-pin RL78/G12 16-bit microcontroller designed for ultra-low-power general-purpose embedded control, featuring 16 KB code flash, 1 KB RAM, 1.8–5.5 V operation, and 31 DMIPS at 24 MHz - deployed in battery-powered sensor nodes and industrial HMI panels.

For engineers reviewing the R5F1036AASM#55 datasheet, R5F1036AASM#55 pinout, R5F1036AASM#55 application, or R5F1036AASM#55 equivalent, key selection criteria include its TSSOP-20 package, absence of data flash memory, single UART channel, no DMA controller, and ±5.0% high-speed on-chip oscillator accuracy over –40°C to +85°C.

Technical Context

The R5F1036AASM#55 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting minimum instruction execution time of 0.04167 µs at 24 MHz (high-speed on-chip oscillator) and 1 MB address space. It operates in HALT, STOP, and SNOOZE low-power modes with 63 µA/MHz active current consumption.

Its peripheral set includes one 10-bit A/D converter (11 channels), four 16-bit timer channels, one watchdog timer, one 12-bit interval timer, one simplified SPI (CSI) channel, one UART channel, and I²C bus interface - all configured via dedicated SFRs and peripheral I/O redirection register (PIOR).

Key Specifications

Pinout & Package

Package: 20-pin plastic TSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F1026AASM#55, the R5F1036AASM#55 trades data flash, tighter oscillator tolerance, and safety peripherals for lower cost and reduced die area; versus R5F1036ADSP#V5, it shares identical functionality but differs in package type, temperature grade, and tape-and-reel logistics - making it optimal for consumer-grade, space-constrained, tape-fed SMT lines.

Availability

R5F1036AASM#55 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial HMI panels, portable medical monitors, and white goods motor control requiring stable component supply across design-in, prototyping, and volume production phases.

Supply support for R5F1036AASM#55 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT markets.

The RL78/G12 product line delivers ultra-low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and general-purpose embedded control applications - balancing performance, energy efficiency, and peripheral integration.

FAQ

What is the maximum operating frequency of the R5F1036AASM#55?

The R5F1036AASM#55 supports a maximum high-speed on-chip oscillator frequency of 24 MHz, delivering 31 DMIPS performance. When using an external crystal, the maximum main system clock frequency is 20 MHz (VDD ≥ 2.7 V) or 16 MHz (VDD ≥ 2.4 V). The actual achievable frequency depends on supply voltage and ambient temperature, with guaranteed operation across 1.8–5.5 V and –40°C to +85°C.

Does the R5F1036AASM#55 include data flash memory?

No, the R5F1036AASM#55 does not include data flash memory. Unlike the R5F102x series, the R5F103x family omits the 2 KB data flash block to reduce cost and silicon area. Configuration data, calibration values, or event logs must be stored externally (e.g., in I²C EEPROM) or in reserved code flash sectors managed via self-programming routines.

What are the key differences between R5F1036AASM#55 and R5F1026AASM#55?

The R5F1036AASM#55 lacks data flash memory, DMA controller, CRC operation, RAM guard, and SFR guard features present in the R5F1026AASM#55. Its high-speed on-chip oscillator has ±5.0% accuracy (vs. ±1.0% in R5F1026AASM#55), and it supports only one simplified SPI and zero simplified I²C channels. These omissions reduce cost and power while maintaining core RL78/G12 functionality for less demanding applications.

Which package type does the R5F1036AASM#55 use?

The R5F1036AASM#55 uses a 20-pin plastic TSSOP package (4.4 × 6.5 mm, 0.65-mm pitch), designated by the "SM" suffix in the part number. This package is RoHS-compliant, moisture sensitivity level (MSL) 3, and compatible with standard surface-mount reflow processes. It differs from the LSSOP-20 variant (e.g., R5F1036AASP#V5) in lead form and footprint dimensions.

Can the R5F1036AASM#55 operate from a 1.8 V supply?

Yes, the R5F1036AASM#55 is fully specified to operate from 1.8 V to 5.5 V, enabling direct interface with low-voltage sensors, batteries, and logic families. At 1.8 V, the maximum supported high-speed on-chip oscillator frequency is 8 MHz, and the external crystal frequency is limited to 8 MHz. All I/Os remain functional, and the 10-bit ADC maintains specified accuracy with internal 1.45 V reference.