Renesas UPD70F3452GC(R)-UBT-M1-A

Overview

UPD70F3452GC(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 operation up to 40 MHz. It integrates UARTA/B, CSIB, I²C, 12-bit ADC (16 channels), six 16-bit timers, watchdog timer, low-voltage detector, and 80-pin LQFP package - designed for industrial motor control and embedded automation systems requiring deterministic real-time response.

For engineers reviewing the UPD70F3452GC(R)-UBT-M1-A datasheet, UPD70F3452GC(R)-UBT-M1-A pinout, UPD70F3452GC(R)-UBT-M1-A application, or UPD70F3452GC(R)-UBT-M1-A equivalent, key selection criteria include Flash endurance (100K write/erase cycles), operating voltage range (2.7–5.5 V), -40°C to +85°C industrial temperature grade, and support for in-circuit debugging via QB-MINI2 and MINICUBE.

Technical Context

The UPD70F3452GC(R)-UBT-M1-A implements the V850E CPU core with 5-stage pipeline, supporting 32-bit fixed-point arithmetic and 16-bit compressed instruction set for code density efficiency. It includes dedicated hardware peripherals for motor control: 6-phase PWM generation via Timer AB/Q/AA, synchronized A/D conversion triggers, and dead-time insertion logic.

On-chip memory architecture features separate instruction and data buses (Harvard-like), 512 KB SuperFlash® program memory with sector erase capability, and 48 KB SRAM with parity protection. The clock system supports multiple sources: external crystal (1–20 MHz), internal RC oscillator (8 MHz), and PLL multiplication up to 40 MHz.

Key Specifications

Pinout & Package

UPD70F3452GC(R)-UBT-M1-A is housed in an 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Chapter 1.2.4 and Chapter 2 of User's Manual U18279EJ3V0UD, including dedicated motor control pins (e.g., P10–P15 for 6-phase PWM output, P20–P23 for ADC inputs).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP and UPD70F3454GC-UBT-M1-A, the UPD70F3452GC(R)-UBT-M1-A provides optimal balance of deterministic PWM timing, integrated ADC synchronization, and industrial-grade reliability - making it the preferred choice for cost-sensitive, high-performance motor control where CAN is not required.

Availability

UPD70F3452GC(R)-UBT-M1-A is available at Aetrix Electronics and suitable for industrial motor drives, factory automation controllers, and smart power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for UPD70F3452GC(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 infrastructure markets.

The UPD70F3452GC(R)-UBT-M1-A belongs to the V850E/IF3 microcontroller family, engineered specifically for deterministic real-time control in industrial motor drives and embedded automation systems requiring high integration and robust operation.

FAQ

What is the maximum operating frequency of the UPD70F3452GC(R)-UBT-M1-A?

The UPD70F3452GC(R)-UBT-M1-A operates at a maximum frequency of 40 MHz, achieved via its on-chip PLL that multiplies an external 1–20 MHz crystal input. This frequency enables sub-microsecond interrupt latency and supports real-time motor control loops with ≤10 µs current-sampling intervals. The UPD70F3452GC(R)-UBT-M1-A maintains timing accuracy across its full industrial temperature range (-40°C to +85°C) with no derating required.

Does the UPD70F3452GC(R)-UBT-M1-A support in-circuit debugging?

Yes, the UPD70F3452GC(R)-UBT-M1-A fully supports in-circuit debugging using Renesas QB-MINI2 and MINICUBE emulators. Its on-chip debug interface enables real-time trace, hardware breakpoints, register inspection, and flash programming without modifying application code. The UPD70F3452GC(R)-UBT-M1-A reserves dedicated debug pins (TCK, TDO, TDI, TMS) compliant with IEEE 1149.1 JTAG, ensuring compatibility with standard development workflows.

What analog peripherals are integrated into the UPD70F3452GC(R)-UBT-M1-A?

The UPD70F3452GC(R)-UBT-M1-A integrates a 12-bit successive-approximation ADC with 16 input channels, supporting simultaneous sampling on up to four channels via hardware trigger from PWM timers. It also includes a low-voltage detector (LVD) with programmable thresholds (2.3–4.5 V) and interrupt/reset outputs. These analog functions are directly mapped to dedicated pins (e.g., P20–P23) and require no external signal conditioning for typical industrial sensor interfaces. The UPD70F3452GC(R)-UBT-M1-A ADC achieves ±1 LSB INL across its operating temperature range.

Is the UPD70F3452GC(R)-UBT-M1-A pin-compatible with other V850E/IF3 devices?

Yes, the UPD70F3452GC(R)-UBT-M1-A shares the same 80-pin LQFP package and pin configuration with μPD70F3451 (256 KB Flash variant), enabling drop-in replacement where reduced memory capacity is acceptable. All V850E/IF3 devices use identical pin functions for power, clock, reset, and peripheral I/O - verified in Chapter 1.2.4 of User's Manual U18279EJ3V0UD. However, the UPD70F3452GC(R)-UBT-M1-A is not pin-compatible with V850E/IG3 variants like UPD70F3454 due to CAN controller pin allocation differences.

What is the Flash memory endurance specification for the UPD70F3452GC(R)-UBT-M1-A?

The UPD70F3452GC(R)-UBT-M1-A uses SuperFlash® technology with guaranteed endurance of 100,000 write/erase cycles per sector and 20-year data retention at +85°C. Each Flash sector (4 KB) can be erased independently, allowing efficient firmware updates without disturbing application code. The UPD70F3452GC(R)-UBT-M1-A supports in-application programming (IAP) via bootloader routines, enabling field-upgradable functionality while maintaining real-time operation.