Renesas R5F1016AASM#70

Overview

R5F1016AASM#70 from Renesas is a 20-pin, 16 KB flash, 2 KB RAM RL78/G13 16-bit microcontroller with no data flash, operating at 1.6–5.5 V and rated for -40°C to +85°C (consumer grade). It delivers 41 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 10-bit ADC (6 channels), UART, I²C, SPI, 16-bit timers, RTC, and on-chip oscillators - deployed in battery-powered sensor nodes and smart home control units.

For engineers reviewing the R5F1016AASM#70 datasheet, R5F1016AASM#70 pinout, R5F1016AASM#70 application, or R5F1016AASM#70 equivalent, key selection criteria include its TSSOP-20 package, absence of data flash, 20-pin I/O count, 16 KB code flash size, and support for HALT/STOP/SNOOZE low-power modes in cost-sensitive embedded designs.

Technical Context

The R5F1016AASM#70 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction execution time from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory map spans 1 MB address space with 8 general-purpose register banks (8-bit × 8).

Power management includes on-chip POR and LVD with 14 selectable voltage detection levels, while peripheral integration covers 2-channel DMA, 16-bit × 16-bit multiply/divide unit, background operation-capable flash programming, and hardware BCD correction - all optimized for deterministic real-time control in resource-constrained systems.

Key Specifications

Pinout & Package

Package: 20-pin TSSOP (4.4 × 6.5 mm, 0.65-mm pitch), RoHS-compliant, surface-mount.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F1006AASM#70 and RL78/G14 R5F1116AASM#70, the R5F1016AASM#70 provides the lowest BOM cost and smallest memory footprint for fixed-function control tasks where data persistence is unnecessary - making it optimal for high-volume consumer electronics with strict cost targets.

Availability

R5F1016AASM#70 is available at Aetrix Electronics and suitable for smart thermostat interfaces, wireless sensor nodes, industrial panel controllers, and home appliance motor control requiring stable component supply and long-term production continuity.

Supply support for R5F1016AASM#70 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 RL78/G13 product line delivers ultra-low-power 16-bit MCUs targeting cost-sensitive, battery-operated embedded systems requiring robust real-time performance and integrated analog peripherals.

FAQ

What is the maximum operating frequency and performance rating of the R5F1016AASM#70?

The R5F1016AASM#70 operates at up to 32 MHz and delivers 41 DMIPS (Dhrystone MIPS). This performance level supports real-time control loops, sensor fusion algorithms, and protocol stack processing in compact embedded systems. Its RL78 CPU core achieves this with a 3-stage pipeline and efficient CISC instruction set, validated across the full 1.6–5.5 V supply range and -40°C to +85°C ambient temperature.

Does the R5F1016AASM#70 include data flash memory?

No, the R5F1016AASM#70 does not include data flash memory. It contains 16 KB of code flash only, with no dedicated data flash block. This distinguishes it from the R5F1006AASM#70 (which includes 4 KB data flash) and aligns it with fixed-function applications where configuration data is stored externally or managed in volatile RAM with backup power.

What package type and pin count does the R5F1016AASM#70 use?

The R5F1016AASM#70 uses a 20-pin TSSOP package (4.4 × 6.5 mm, 0.65-mm pitch), designated by the "SM" suffix in Renesas' part numbering scheme. This surface-mount package supports automated assembly and provides adequate I/O (16 programmable pins plus power/reset) for compact control applications without requiring high pin density.

Which low-power modes are supported by the R5F1016AASM#70, and what are their typical current draws?

The R5F1016AASM#70 supports HALT mode (66 μA/MHz), STOP mode (0.57 μA with RTC and LVD active), and SNOOZE mode (intermediate power state for background peripheral operation). These modes are hardware-controlled and retain RAM content, enabling rapid wake-up for event-driven operation - essential for extending battery life in always-on sensor and control applications.

Can the R5F1016AASM#70 operate without an external crystal oscillator?

Yes, the R5F1016AASM#70 can operate without an external crystal oscillator. It integrates a high-accuracy on-chip oscillator with ±1.0% tolerance across 1.8–5.5 V and -20 to +85°C, supporting frequencies from 1 MHz to 32 MHz. This eliminates BOM cost and board space for external timing components in UART, SPI, and I²C applications where crystal-grade accuracy is not required.