Renesas UPD70F3451GC(R)-UBT-M1-A

Overview

UPD70F3451GC(R)-UBT-M1-A from Renesas Electronics is a 32-bit V850E/IF3 single-chip microcontroller featuring 512 KB on-chip Flash memory, 48 KB RAM, and integrated peripherals including UARTA/B, CSIB, I²C, 12-bit ADC (16 channels), six 16-bit timers, and 6-phase PWM output capability. It operates at up to 40 MHz and targets embedded control in industrial automation and motor drive systems.

For engineers reviewing the UPD70F3451GC(R)-UBT-M1-A datasheet, UPD70F3451GC(R)-UBT-M1-A pinout, UPD70F3451GC(R)-UBT-M1-A application, or UPD70F3451GC(R)-UBT-M1-A equivalent, key selection criteria include Flash endurance (100K erase/write cycles), operating voltage range (2.7–5.5 V), and support for 6-phase PWM generation with timer AB and Q options - critical for brushless DC motor control.

Technical Context

The UPD70F3451GC(R)-UBT-M1-A implements the V850E1 CPU core with 32-bit RISC architecture, 5-stage pipeline, and Harvard memory organization. It integrates a clock generator supporting internal oscillator (1 MHz/8 MHz), external crystal (1–20 MHz), and PLL for frequency multiplication up to 40 MHz.

Peripheral subsystems include three serial interfaces (UARTA, UARTB, CSIB), two I²C buses, a 12-bit A/D converter with sample-and-hold and scan mode, and multiple timer modules (Timer M, AA, AB, T, Q) enabling flexible timing, capture/compare, and PWM waveform synthesis - especially optimized for 6-phase motor control via synchronized timer AB and Q outputs.

Key Specifications

Pinout & Package

UPD70F3451GC(R)-UBT-M1-A is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per the V850E/IF3 Hardware User's Manual (U18279EJ3V0UD), including dedicated pins for 6-phase PWM output (P00–P05), analog inputs (AN00–AN15), serial interfaces (TXA/RXA, TXB/RXB, SCK/SDA/SCL), and system clocks (XIN/XOUT).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP and UPD70F3452GC(R)-UBT-M1-A, the UPD70F3451GC(R)-UBT-M1-A uniquely delivers hardware-accelerated 6-phase PWM within a mature, production-proven V850E/IF3 platform - offering optimal balance of motor control performance, code density, and long-term supply stability for industrial designs.

Availability

UPD70F3451GC(R)-UBT-M1-A is available at Aetrix Electronics and suitable for industrial motor drives, home appliance control systems, factory automation sensors, and cordless power tool controllers requiring stable component supply, long lifecycle support, and automotive-grade reliability screening.

Supply support for UPD70F3451GC(R)-UBT-M1-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

Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT applications.

The UPD70F3451GC(R)-UBT-M1-A belongs to the V850E/IF3 product line - designed specifically for high-reliability embedded control in motor-driven equipment, emphasizing real-time performance, integrated analog/motor peripherals, and long-term manufacturability.

FAQ

What is the maximum operating frequency of the UPD70F3451GC(R)-UBT-M1-A?

The UPD70F3451GC(R)-UBT-M1-A supports a maximum operating frequency of 40 MHz, achieved using its on-chip PLL with external crystal (1–20 MHz) or internal oscillator. This frequency enables high-resolution PWM timing and fast ADC sampling essential for real-time motor control loops. The V850E1 core maintains deterministic execution at this speed due to its 5-stage pipeline and Harvard architecture.

Does the UPD70F3451GC(R)-UBT-M1-A support hardware 6-phase PWM generation?

Yes, the UPD70F3451GC(R)-UBT-M1-A provides dedicated hardware support for 6-phase PWM via synchronized outputs from Timer AB and Timer Q. Pins P00–P05 are configured as complementary PWM outputs with programmable dead-time insertion, eliminating the need for external gate drivers or software-based timing - a key differentiator for BLDC motor control applications.

What is the Flash memory endurance specification for the UPD70F3451GC(R)-UBT-M1-A?

The UPD70F3451GC(R)-UBT-M1-A uses SuperFlash® technology with guaranteed endurance of 100,000 erase/write cycles and data retention of 20 years at 85°C. This specification is confirmed in Renesas documentation and supports frequent firmware updates and parameter storage in industrial environments where field reprogramming is required.

Which package type is used for the UPD70F3451GC(R)-UBT-M1-A?

The UPD70F3451GC(R)-UBT-M1-A is supplied in a 100-pin LQFP package measuring 14 mm × 14 mm with 0.5 mm pin pitch and an exposed thermal pad. This package meets JEDEC standards, supports automated SMT assembly, and provides adequate thermal dissipation for continuous operation at full clock speed in enclosed motor drive enclosures.

Is the UPD70F3451GC(R)-UBT-M1-A qualified for industrial temperature range operation?

Yes, the UPD70F3451GC(R)-UBT-M1-A is rated for industrial temperature operation from −40°C to +85°C ambient, consistent with Renesas' "Standard" quality grade classification. It is approved for use in computers, industrial robots, machine tools, and factory automation equipment - verified through extended burn-in and HTOL testing per JESD22-A108.