Renesas R5F104ADASP#V0

Overview

R5F104ADASP#V0 from Renesas is a 30-pin LSSOP-packaged RL78/G14 16-bit microcontroller designed for industrial applications (TA = −40 to +85°C), featuring 32 KB flash memory, 4 KB data flash, 4 KB RAM, 16 MHz max CPU frequency, and ultra-low-power operation at 66 μA/MHz active and 0.60 μA in RTC+LVD-only mode.

For engineers reviewing the R5F104ADASP#V0 datasheet, R5F104ADASP#V0 pinout, R5F104ADASP#V0 application, or R5F104ADASP#V0 equivalent, key selection considerations include its 30-pin LSSOP-0.65mm package, industrial-grade temperature rating, integrated 10-bit ADC with 8 channels, dual UART/SPI/I²C interfaces, and hardware real-time clock with calendar support.

Technical Context

The R5F104ADASP#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable from 1–64 MHz) and supports multiple low-power modes: HALT, STOP, and SNOOZE.

Peripheral integration includes an Event Link Controller (ELC) for 19–26 event signal routing, Data Transfer Controller (DTC) with chain transfer, and background operation (BGO) for data flash rewriting while executing program code - enabling seamless firmware updates and parameter storage without CPU interruption.

Key Specifications

Pinout & Package

Package: 30-pin plastic LSSOP (7.62 mm, 0.65 mm pitch), suitable for space-constrained industrial PCB layouts with standard surface-mount assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104BDASP#V0 and R5F104CDASP#V0, the R5F104ADASP#V0 delivers optimal balance of memory (32 KB flash/4 KB RAM), ultra-low-power capability, and industrial temperature support in a compact 30-pin LSSOP - making it ideal for mid-complexity embedded controls where BOM cost and board area are constrained.

Availability

R5F104ADASP#V0 is available at Aetrix Electronics and suitable for smart utility metering, industrial sensor nodes, home appliance control, and factory automation I/O modules requiring stable component supply across extended product lifecycles.

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

The RL78/G14 product line delivers true low-power performance (66 μA/MHz) with rich analog and communication peripherals - engineered specifically for cost-sensitive, battery-operated, and industrial-grade embedded control applications.

FAQ

What is the maximum operating frequency of the R5F104ADASP#V0?

The R5F104ADASP#V0 supports a maximum CPU operating frequency of 16 MHz using the high-speed on-chip oscillator. This yields 44 DMIPS performance while maintaining ultra-low power consumption of 66 μA/MHz. The device also supports lower-frequency operation down to 32.768 kHz for RTC and ultra-low-power modes, with instruction timing adjustable from 0.03125 μs to 30.5 μs per instruction cycle. The R5F104ADASP#V0 achieves this through its RL78 CPU core's 3-stage pipeline and configurable clock source selection.

Does the R5F104ADASP#V0 support in-system programming and secure firmware updates?

Yes, the R5F104ADASP#V0 supports full in-system programming via its on-chip debug interface and includes dedicated flash security features. It implements boot-swap functionality for safe firmware updates and a flash-shield window to protect critical code sections from unauthorized overwrite. Self-programming is enabled with background operation (BGO), allowing the R5F104ADASP#V0 to execute application code while rewriting data flash - essential for robust field upgrades and parameter storage without system interruption.

What analog peripherals are integrated into the R5F104ADASP#V0?

The R5F104ADASP#V0 integrates a 10-bit resolution A/D converter with up to 8 analog input channels (ANI0–ANI7), internal 1.45 V reference voltage, and an on-chip temperature sensor. It operates across the full 1.6–5.5 V supply range and supports both single-ended and differential measurement modes using AVREFP/AVREFM pins. No external reference or temperature sensor is required for basic environmental monitoring or power rail sensing - reducing BOM cost and board area. The R5F104ADASP#V0 does not include a D/A converter or comparator in this configuration.

Which serial communication interfaces are available on the R5F104ADASP#V0?

The R5F104ADASP#V0 provides three UART/LIN channels (supporting LIN 2.2 bus protocol), three CSI channels (SPI-compatible serial interfaces), and four I²C/simplified I²C channels. These interfaces are fully configurable via peripheral I/O redirection registers (PIOR0/PIOR1), enabling flexible pin assignment. The R5F104ADASP#V0 does not include CAN or USB interfaces. Its serial peripheral count and routing flexibility make it well-suited for multi-sensor systems requiring simultaneous communication with displays, sensors, and host controllers.

What is the industrial temperature rating and package type of the R5F104ADASP#V0?

The R5F104ADASP#V0 is rated for industrial ambient temperature operation from −40°C to +85°C (denoted by "D" in the part number) and housed in a 30-pin plastic LSSOP package with 0.65 mm pitch (SP suffix). This package measures 7.62 mm × 4.4 mm and is compatible with standard reflow soldering processes. The "#V0" packaging specification indicates tray delivery. The R5F104ADASP#V0's combination of industrial temp grade and compact LSSOP form factor targets space-constrained, reliability-critical applications such as utility meters and industrial controllers.