Renesas UPD78F1029GC(S)-UEU-AX

Overview

UPD78F1029GC(S)-UEU-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KG3-L family, featuring 256 KB on-chip Flash memory, 16 KB RAM, and a 20 MHz max CPU clock. It integrates 12-bit ADC (16 channels), 8-bit D/A converter (2 channels), and multiple communication interfaces including UART, CSI, I²C, and CAN 2.0B controller. It targets industrial motor control and sensor-based embedded systems requiring deterministic real-time response.

For engineers reviewing the UPD78F1029GC(S)-UEU-AX datasheet, UPD78F1029GC(S)-UEU-AX pinout, UPD78F1029GC(S)-UEU-AX application, or UPD78F1029GC(S)-UEU-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), CAN bus timing compliance (ISO 11898-1:2015), and dual-voltage domain support (EVDD0/EVDD1 for analog/digital isolation).

Technical Context

The UPD78F1029GC(S)-UEU-AX implements the 78K0R CPU core with 16-bit ALU, 16-bit address/data bus, and Harvard architecture. It supports three power-saving modes - HALT, STOP, and SNOOZE - with wake-up via external interrupt, timer, or serial interface event. Its on-chip debug function enables real-time trace and breakpoint control through the QB-78F1030 emulator.

Peripherals include a 16-bit multifunction timer array (MTU) with complementary PWM output, watchdog timer (WDT) with independent clock source, and voltage detection circuit (VDET) with four selectable thresholds. The device uses SuperFlash® technology licensed from Silicon Storage Technology for reliable Flash programming and data retention over 20 years at 85°C.

Key Specifications

Pinout & Package

The UPD78F1029GC(S)-UEU-AX is housed in a 100-pin LQFP package with exposed thermal pad, optimized for industrial PCB layouts requiring EMI resilience and thermal stability. Pin assignments follow JEDEC MO-137DA standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R5F100LEAFB#30 and MB9BF516RPMC-G-SNE2, the UPD78F1029GC(S)-UEU-AX delivers full CAN integration in a drop-in-capable pinout within the same family, enabling legacy-compatible upgrades without PCB redesign or firmware rearchitecture.

Availability

UPD78F1029GC(S)-UEU-AX is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy metering, and factory automation I/O terminals requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1029GC(S)-UEU-AX 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 global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The 78K0R/KG3-L product line was designed specifically for cost-sensitive, high-reliability industrial and automotive body applications requiring integrated analog peripherals, CAN connectivity, and long-term supply assurance.

FAQ

What is the maximum operating frequency and core type of the UPD78F1029GC(S)-UEU-AX?

The UPD78F1029GC(S)-UEU-AX features a 78K0R 16-bit RISC CPU core with a maximum operating frequency of 20 MHz. It delivers 1.46 DMIPS per MHz and supports instruction execution in one or two clock cycles depending on addressing mode. This performance level enables real-time control loops with sub-microsecond interrupt latency, making the UPD78F1029GC(S)-UEU-AX suitable for demanding applications such as motor commutation and closed-loop sensor feedback.

Does the UPD78F1029GC(S)-UEU-AX include an integrated CAN controller, and what version does it support?

Yes, the UPD78F1029GC(S)-UEU-AX integrates a full CAN 2.0B controller compliant with ISO 11898-1:2015. It supports both standard (11-bit) and extended (29-bit) identifiers, programmable bit rates up to 1 Mbps, and hardware message filtering with 32 message objects. The controller operates independently of the CPU core, allowing background message handling without interrupt overhead - a critical capability for the UPD78F1029GC(S)-UEU-AX in automotive and industrial networking applications.

What are the Flash memory specifications for the UPD78F1029GC(S)-UEU-AX, including endurance and data retention?

The UPD78F1029GC(S)-UEU-AX contains 256 KB of on-chip Flash memory implemented using SuperFlash® technology licensed from Silicon Storage Technology. It guarantees 100,000 write/erase cycles and 20-year data retention at 85°C ambient temperature. The Flash supports page erase (1 ms typical), block erase, and byte/word programming, enabling robust firmware updates and parameter storage in the UPD78F1029GC(S)-UEU-AX without external EEPROM.

How is analog-digital isolation achieved on the UPD78F1029GC(S)-UEU-AX, and why is it important?

The UPD78F1029GC(S)-UEU-AX employs dual power domains: separate EVDD0/EVDD1 supplies for analog circuitry (ADC, D/A, comparators) and VDD for digital logic. This physical separation minimizes coupling of digital switching noise into sensitive analog measurements. For example, ADC conversions maintain ±1 LSB linearity even during heavy CAN bus activity - a design advantage critical for precision applications like energy metering where the UPD78F1029GC(S)-UEU-AX must meet IEC 62053-22 Class 0.5 accuracy requirements.

Which development tools are officially supported for debugging and programming the UPD78F1029GC(S)-UEU-AX?

Renesas officially supports the QB-78F1030 In-Circuit Emulator for the UPD78F1029GC(S)-UEU-AX, which provides real-time trace, non-intrusive breakpoints, and live register inspection. Programming is enabled via the PG-FP5 Flash Memory Programmer with the appropriate 78K0R adapter. Software tools include the CC78K0R C compiler and RA78K0R assembler, both validated for the 78K0R/KG3-L family. These tools ensure full visibility and control over the UPD78F1029GC(S)-UEU-AX during firmware development and validation.