Renesas UPD70F3452GC(R)-UBT-A

Overview

UPD70F3452GC(R)-UBT-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, six 16-bit timers (T, AA, AB, M, Q), 12-bit A/D converters (0–2), watchdog timer, and low-voltage detector. It operates at up to 32 MHz and targets embedded control in industrial automation and motor drive systems.

For engineers reviewing the UPD70F3452GC(R)-UBT-A datasheet, UPD70F3452GC(R)-UBT-A pinout, UPD70F3452GC(R)-UBT-A application, or UPD70F3452GC(R)-UBT-A equivalent, key selection criteria include its V850E core architecture, Flash endurance (100K write/erase cycles), 3.0–5.5 V operating voltage range, -40°C to +85°C industrial temperature grade, and support for 6-phase PWM output via Timer AB and Timer Q.

Technical Context

The UPD70F3452GC(R)-UBT-A implements the V850E1 CPU core with 32-bit RISC architecture, 5-stage pipeline, and Harvard memory organization. It integrates dual UARTs with FIFO, I²C master/slave mode, and CSIB synchronous serial interface for sensor or peripheral expansion.

Its on-chip clock generator supports multiple sources (main oscillator, sub-oscillator, PLL), enabling flexible system timing with programmable prescalers and clock switching. The device includes dedicated hardware for 6-phase PWM generation using Timer AB and Timer Q, supporting motor control applications without external logic.

Key Specifications

Pinout & Package

The UPD70F3452GC(R)-UBT-A is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in motor control applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP and MB9BF516RPMC, the UPD70F3452GC(R)-UBT-A delivers deterministic 6-phase PWM timing, V850E-optimized compiler support, and proven industrial qualification-making it optimal for legacy-compatible upgrades and high-precision motor control where jitter-free waveform generation is critical.

Availability

UPD70F3452GC(R)-UBT-A is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, smart power supplies, and embedded test equipment requiring stable component supply across long product lifecycles.

Supply support for UPD70F3452GC(R)-UBT-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 infrastructure markets.

The UPD70F3452GC(R)-UBT-A belongs to the V850E/IF3 product line, designed specifically for deterministic real-time control in industrial automation and motor drive systems where low-latency peripheral response and Flash reliability are critical.

FAQ

What is the maximum operating frequency of the UPD70F3452GC(R)-UBT-A?

The UPD70F3452GC(R)-UBT-A operates at a maximum frequency of 32 MHz. This speed is achieved using the on-chip PLL with an external 4–20 MHz crystal connected to XIN/XOUT pins. At 32 MHz, the V850E1 core delivers consistent instruction throughput for real-time control loops, and the UPD70F3452GC(R)-UBT-A maintains full peripheral functionality-including simultaneous UART, I²C, and ADC operation-without clock gating penalties.

Does the UPD70F3452GC(R)-UBT-A support hardware 6-phase PWM generation?

Yes, the UPD70F3452GC(R)-UBT-A supports dedicated hardware 6-phase PWM generation using Timer AB and Timer Q. These timers provide complementary output pairs (UH/UL, VH/VL, WH/WL) with programmable dead-time insertion and synchronization triggers. This capability is explicitly documented in the V850E/IF3 Hardware User's Manual (U18279EJ3V0UD) and eliminates software-based PWM timing jitter, making the UPD70F3452GC(R)-UBT-A suitable for precise 3-phase inverter control in industrial motor drives.

What is the Flash memory endurance specification for the UPD70F3452GC(R)-UBT-A?

The UPD70F3452GC(R)-UBT-A uses SuperFlash® technology licensed from Silicon Storage Technology, providing 100,000 write/erase cycles and guaranteed 20-year data retention at 85°C. This endurance rating applies to the full 512 KB on-chip Flash and is validated per Renesas' standard qualification testing. The UPD70F3452GC(R)-UBT-A supports sector-erase and byte-program operations, enabling robust firmware updates and parameter storage in field-deployed industrial equipment.

Is the UPD70F3452GC(R)-UBT-A qualified for industrial temperature operation?

Yes, the UPD70F3452GC(R)-UBT-A is rated for industrial temperature operation from -40°C to +85°C. This qualification is confirmed in Renesas' official ordering information and electrical specifications (Chapter 28 of U18279EJ3V0UD). The device meets "Standard" quality grade per Renesas' classification, making it suitable for computers, office equipment, communications gear, and industrial robots-consistent with its target use in motor control and factory automation systems.

What debug interface does the UPD70F3452GC(R)-UBT-A support?

The UPD70F3452GC(R)-UBT-A supports IEEE 1149.1 JTAG boundary-scan for production testing and on-chip debugging via QB-V850MINI or QB-MINI2 emulators. It includes full real-time trace capability without CPU halting, enabling non-intrusive analysis of instruction flow and peripheral register access. This debug infrastructure is integral to the V850E/IF3 architecture and is fully supported by Renesas' CA850 C compiler and ID850QB debugger-ensuring seamless development for the UPD70F3452GC(R)-UBT-A.