Renesas UPD70F3079BYGC-8EU-A

Overview

UPD70F3079BYGC-8EU-A from NEC Electronics is a 32-bit V850/SF1 single-chip microcontroller featuring 512 KB on-chip Flash memory, 32 KB RAM, a 32-bit CPU core operating at up to 33 MHz, integrated FCAN controller, and 11 I/O ports. It targets automotive body control modules, industrial PLCs, and motor drive systems requiring deterministic real-time response and CAN bus connectivity.

For engineers reviewing the UPD70F3079BYGC-8EU-A datasheet, UPD70F3079BYGC-8EU-A pinout, UPD70F3079BYGC-8EU-A application, or UPD70F3079BYGC-8EU-A equivalent, key selection criteria include FCAN compliance (ISO 11898-1), 33 MHz max CPU clock, 512 KB Flash with in-system programmability, and QFP-144 package compatibility with industrial temperature range (−40°C to +85°C).

Technical Context

The UPD70F3079BYGC-8EU-A implements the V850E CPU core with 32-bit RISC architecture, supporting 16/32-bit mixed instruction set and pipeline execution. It integrates a dedicated FCAN controller compliant with ISO 11898-1:2003, enabling bit rates up to 1 Mbps and supporting both standard and extended frame formats.

Power management includes HALT, IDLE, and Software STOP modes with wake-up via external interrupt or timer event. The device supports external bus expansion with programmable wait states, 8/16-bit data bus width, and memory boundary alignment for program/data spaces.

Key Specifications

Pinout & Package

UPD70F3079BYGC-8EU-A is housed in a 144-pin plastic quad flat package (QFP) with 0.5 mm lead pitch and 20 mm × 20 mm body size. Pin assignment follows the V850/SF1 standard layout defined in Chapter 1.5 and Section 2.1 of User's Manual U14665EJ4V0UD.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit microcontroller applications.

Compared with R5F566TEADFP and SPC560B50L5, the UPD70F3079BYGC-8EU-A provides native FCAN hardware with minimal software overhead and lower power consumption in HALT mode, making it optimal for cost-sensitive, CAN-centric industrial controls where ASIL certification is not required.

Availability

UPD70F3079BYGC-8EU-A is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, programmable logic controllers, and smart sensor nodes requiring stable component supply and long-term lifecycle support.

Supply support for UPD70F3079BYGC-8EU-A 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

NEC Electronics Corporation (now part of Renesas Electronics) was a Japanese semiconductor manufacturer specializing in microcontrollers, memory, and analog ICs for automotive and industrial markets.

The V850/SF1 product line was designed for real-time embedded control applications demanding high reliability, integrated CAN communication, and low-power operation in harsh environments.

FAQ

What is the maximum operating frequency of the UPD70F3079BYGC-8EU-A?

The UPD70F3079BYGC-8EU-A operates at a maximum CPU clock frequency of 33 MHz, as specified in Chapter 19 Electrical Specifications of User's Manual U14665EJ4V0UD. This frequency is achievable with a 3.3 V ±10% supply and ambient temperatures between −40°C and +85°C. The device uses an internal PLL to multiply the external crystal or clock input, and timing margins are validated for all internal peripherals-including FCAN, UARTs, and timers-at this rated speed.

Does the UPD70F3079BYGC-8EU-A include an integrated CAN controller?

Yes, the UPD70F3079BYGC-8EU-A integrates a fully compliant FCAN controller meeting ISO 11898-1:2003 requirements. As documented in Chapter 12 of User's Manual U14665EJ4V0UD, it supports bit rates up to 1 Mbps, 32 message objects with configurable acceptance filtering, and automatic retransmission on error. The controller connects directly to external CAN transceivers via CANTX and CANRX pins, eliminating the need for external protocol ICs.

What package type and pin count does the UPD70F3079BYGC-8EU-A use?

UPD70F3079BYGC-8EU-A uses a 144-pin plastic quad flat package (QFP) with 0.5 mm lead pitch and 20 mm × 20 mm body dimensions. This package is confirmed in Section 1.5 (Pin Configuration) and Appendix A (Mechanical Data) of User's Manual U14665EJ4V0UD. The pin layout matches the V850/SF1 family standard, enabling drop-in compatibility with other members such as μPD70F3079Y and μPD70F3079AY(A) in the same package variant.

Is the UPD70F3079BYGC-8EU-A supported for in-system programming?

Yes, the UPD70F3079BYGC-8EU-A supports in-system programming of its 512 KB on-chip Flash memory. According to Chapter 17 (Flash Memory Programming) of User's Manual U14665EJ4V0UD, programming can be performed via UART0 or the FCAN interface using the on-chip bootloader. No external programming voltage or dedicated debug header is required-only standard 3.3 V supply and communication interface access are needed for field firmware updates.

What is the operating temperature range for the UPD70F3079BYGC-8EU-A?

The UPD70F3079BYGC-8EU-A is rated for industrial temperature operation from −40°C to +85°C, as stated in Chapter 19 Electrical Specifications of User's Manual U14665EJ4V0UD. This range applies to all DC and AC electrical characteristics, including FCAN timing, Flash write/erase endurance, and CPU instruction execution. The device is classified as "Standard" quality grade per NEC's quality grading system, making it suitable for non-life-critical industrial and automotive body electronics applications.