Renesas R5F104ADASP#10

Overview

R5F104ADASP#10 from Renesas is a 32-bit RL78/G14 microcontroller designed for ultra-low-power industrial control applications, featuring 32 KB flash memory, 4 KB data flash, 4 KB RAM, 30-pin LSSOP package, and operation from 1.6 V to 5.5 V across –40°C to +85°C. It delivers 44 DMIPS at 32 MHz with 66 μA/MHz active current and supports RTC + LVD retention at 0.60 μA.

For engineers reviewing the R5F104ADASP#10 datasheet, R5F104ADASP#10 pinout, R5F104ADASP#10 application, or R5F104ADASP#10 equivalent, key selection criteria include its 30-pin LSSOP footprint, industrial-grade temperature range (–40°C to +85°C), integrated 10-bit ADC (20-channel), dual UART/LIN support, and hardware DTC/ELC for deterministic peripheral event handling in resource-constrained embedded systems.

Technical Context

The R5F104ADASP#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs min @ 32 MHz to 30.5 µs @ 32.768 kHz). It integrates a 16-bit Timer Array Unit (TAU) with up to 8 channels, one 12-bit interval timer, and a calendar-capable real-time clock with alarm and correction functions.

Peripheral subsystems include three UART/LIN channels, four I²C/simplified I²C interfaces, up to eight CSI/SPI channels, an 8-bit DAC (two-channel capable), two comparators, and a 10-bit ADC with internal reference (1.45 V) and temperature sensor - all operating within the same 1.6–5.5 V supply range as the core.

Key Specifications

Pinout & Package

Package: 30-pin plastic LSSOP (7.62 mm × 5.0 mm, 0.65 mm pitch), surface-mount, industrial-temperature rated.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104BDASP#10 and R5F104AEASP#10, the R5F104ADASP#10 offers optimal balance of cost, power efficiency, and resource allocation for mid-complexity industrial controllers where 32 KB flash and 4 KB RAM meet functional requirements without over-provisioning.

Availability

R5F104ADASP#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, programmable logic relays, and energy meter front-ends requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for R5F104ADASP#10 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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G14 family targets cost-sensitive, ultra-low-power industrial and consumer applications requiring high integration, robust peripheral sets, and long-term supply assurance - with R5F104ADASP#10 optimized for compact LSSOP designs.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104ADASP#10?

The R5F104ADASP#10 operates up to 32 MHz with a peak performance of 44 DMIPS. Its RL78 CPU core achieves this through a 3-stage pipeline and optimized instruction set, including multiply/divide and MAC instructions. At 32 MHz, minimum instruction execution time is 0.03125 µs, and the device maintains full peripheral functionality including ADC, UART, and timers - all verified across its –40°C to +85°C industrial temperature range.

Does the R5F104ADASP#10 support LIN bus communication, and how is it implemented?

Yes, the R5F104ADASP#10 supports LIN bus communication via its UART channels, which include dedicated LIN break-detection logic and synchronization capabilities compliant with LIN 2.x specifications. Specifically, UART2 (pins P13/P14) or UART0 (pins P50/P51) can be configured for LIN physical layer operation, enabling direct connection to LIN transceivers without external protocol assist hardware - a key enabler for automotive body electronics and industrial sub-networks.

What are the power consumption characteristics of the R5F104ADASP#10 in low-power modes?

The R5F104ADASP#10 achieves 66 μA/MHz in active mode and drops to 0.60 μA in STOP mode with only RTC and LVD active - verified at 1.8 V and 25°C. HALT mode consumes 0.95 μA (typ.) with main oscillator stopped, and SNOOZE mode allows selected peripherals (e.g., ADC, UART) to operate while CPU sleeps. All modes retain RAM content and support wake-up via external interrupt, RTC alarm, or peripheral event - critical for battery-powered industrial sensors.

How many analog input channels and what ADC resolution does the R5F104ADASP#10 provide?

The R5F104ADASP#10 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19), including dedicated AVREFP/AVREFM pins for precision reference. It supports internal 1.45 V reference voltage and on-die temperature sensing, with conversion times as fast as 1.2 µs per sample. The ADC operates across the full 1.6–5.5 V supply range and is accessible via DTC for automated data capture without CPU intervention.

Is the R5F104ADASP#10 pin-compatible with other RL78/G14 variants in the same package?

Yes, the R5F104ADASP#10 is fully pin-compatible with all other 30-pin LSSOP RL78/G14 variants (e.g., R5F104BDASP#10, R5F104AEASP#10), sharing identical pin count, pitch, mechanical footprint, and signal mapping. This enables direct substitution within the same PCB design for memory or peripheral scaling - provided firmware is updated to match the target variant's RAM size, data flash capacity, and peripheral enablement settings.