Renesas UPD70F3915GC(R)-UEU-AX

Overview

UPD70F3915GC(R)-UEU-AX from Renesas Electronics is a 32-bit V850E/IG4-H microcontroller featuring a 64 MHz CPU clock, 512 KB on-chip Flash memory, 48 KB RAM, and integrated peripherals including two 16-bit timer/event counters (TAA/TAB), UART, I²C, and CAN 2.0B controller. It operates from 2.7–3.6 V and targets real-time control in industrial automation and motor drive systems.

For engineers reviewing the UPD70F3915GC(R)-UEU-AX datasheet, UPD70F3915GC(R)-UEU-AX pinout, UPD70F3915GC(R)-UEU-AX application, or UPD70F3915GC(R)-UEU-AX equivalent, key selection criteria include its V850E ISA compatibility, CAN interface support, Flash endurance (100K write/erase cycles), and -40°C to +85°C industrial temperature grade.

Technical Context

The UPD70F3915GC(R)-UEU-AX implements the V850E1 CPU core with 32-bit RISC architecture, supporting 16-/32-bit instructions and 3-stage pipeline execution. It integrates a PLL-based clock generator with selectable input sources (crystal, external clock, or internal RC) and configurable system clocks up to 64 MHz.

Peripherals include dual 16-bit timer/event counters with PWM, capture, and pulse-width measurement modes; a full-CAN 2.0B controller with 32 message objects and FIFO support; and three serial interfaces (UART ×2, I²C ×1). Memory protection unit (MPU) and watchdog timer enhance functional safety compliance.

Key Specifications

Pinout & Package

UPD70F3915GC(R)-UEU-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment follows V850E/IG4-H family layout, supporting multiplexed functions across ports P0–P5, P7, and DL.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD70F3915GC(R)-UEU-AX, R5F566TEADFP offers higher CPU performance but requires external CAN transceiver and separate protocol stack implementation, while UPD70F3920GC-UEU-AX provides seamless memory scalability within the same V850E platform and pin-compatible footprint.

Availability

UPD70F3915GC(R)-UEU-AX is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and building energy management systems requiring stable component supply and long-term lifecycle support.

Supply support for UPD70F3915GC(R)-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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The UPD70F3915GC(R)-UEU-AX belongs to the V850E/IG4-H microcontroller family, designed specifically for deterministic real-time control in industrial equipment where CAN connectivity, Flash reliability, and extended temperature operation are critical.

FAQ

What is the maximum operating frequency of the UPD70F3915GC(R)-UEU-AX?

The UPD70F3915GC(R)-UEU-AX supports a maximum CPU clock frequency of 64 MHz, achieved via its integrated PLL clock generator with programmable multiplication ratio. This frequency is fully supported across the full industrial temperature range (-40°C to +85°C) and 2.7–3.6 V supply voltage, enabling tight real-time control loops in motor and power conversion applications. The UPD70F3915GC(R)-UEU-AX datasheet specifies timing parameters validated at this maximum rate.

Does the UPD70F3915GC(R)-UEU-AX include a CAN controller?

Yes, the UPD70F3915GC(R)-UEU-AX integrates a full CAN 2.0B controller compliant with ISO 11898-1, supporting bit rates up to 1 Mbps, 32 message objects, hardware acceptance filtering, and transmit FIFO functionality. This eliminates the need for external CAN protocol ICs in industrial networking designs. The UPD70F3915GC(R)-UEU-AX uses dedicated CANTX/CANRX pins and supports automatic retransmission and error confinement.

What package type and pin count does the UPD70F3915GC(R)-UEU-AX use?

The UPD70F3915GC(R)-UEU-AX is supplied in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. This package matches the V850E/IG4-H family pinout specification and supports all primary peripherals including UART, I²C, CAN, timers, and general-purpose I/O across Ports P0–P5, P7, and DL. The UPD70F3915GC(R)-UEU-AX pin configuration is documented in Chapter 1.5.1 of the Hardware User's Manual.

How much on-chip memory does the UPD70F3915GC(R)-UEU-AX provide?

The UPD70F3915GC(R)-UEU-AX includes 512 KB of on-chip Flash memory and 48 KB of RAM. The Flash supports 100,000 write/erase cycles and features 128-bit user code lock for IP protection. RAM is SRAM with full-speed access and MPU-configurable regions. Both memory blocks are mapped into the V850E linear address space and directly accessible by the UPD70F3915GC(R)-UEU-AX CPU without wait states at maximum clock frequency.

Is the UPD70F3915GC(R)-UEU-AX qualified for industrial temperature operation?

Yes, the UPD70F3915GC(R)-UEU-AX is rated for industrial temperature operation from -40°C to +85°C and classified as "Standard" quality grade per Renesas documentation, making it suitable for factory automation, motor drives, and building control systems. Electrical specifications-including timing, voltage thresholds, and peripheral functionality-are guaranteed across this full range. The UPD70F3915GC(R)-UEU-AX meets Renesas' Standard grade requirements for computers, office equipment, and industrial robots as defined in the product notice.