Renesas UPD70F3750GK-GAK-AX

Overview

UPD70F3750GK-GAK-AX from Renesas Electronics is a 32-bit V850ES/HF3 single-chip microcontroller featuring a 40 MHz CPU clock, 256 KB on-chip Flash memory, 16 KB RAM, and integrated peripherals including 8-channel 10-bit ADC, 32-bit timer/counter, UART, I²C, and CAN 2.0B controller. It operates from 2.7–5.5 V and targets industrial control and motor drive applications requiring deterministic real-time response.

For engineers reviewing the UPD70F3750GK-GAK-AX datasheet, UPD70F3750GK-GAK-AX pinout, UPD70F3750GK-GAK-AX application, or UPD70F3750GK-GAK-AX equivalent, key selection criteria include CAN interface support, Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compliance with industrial-grade reliability standards.

Technical Context

The UPD70F3750GK-GAK-AX implements the V850ES core architecture with five-stage pipeline execution, supporting both little-endian and big-endian data access modes. It integrates a dedicated CAN controller compliant with ISO 11898-1:2003, enabling message filtering, FIFO buffering, and error handling without CPU intervention.

Its peripheral set includes three 16-bit general-purpose timers with input capture/output compare capability, a watchdog timer with independent clock source, and programmable port functions supporting TTL/CMOS-level I/O with configurable pull-up resistors and slew-rate control for EMI reduction.

Key Specifications

Pinout & Package

The UPD70F3750GK-GAK-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced thermal dissipation in motor control and power supply applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD70F3750GK-GAK-AX, R5F566TEADFP offers lower cost and smaller code size but lacks CAN and real-time determinism; MB9BF516RPMC provides CAN FD and richer peripheral set at the expense of higher voltage requirements and thermal management complexity.

Availability

UPD70F3750GK-GAK-AX is available at Aetrix Electronics and suitable for industrial motor drive, factory automation PLC, and energy metering gateway applications requiring stable component supply and long-term lifecycle assurance.

Supply support for UPD70F3750GK-GAK-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 automotive, industrial, and IoT markets.

The UPD70F3750GK-GAK-AX belongs to the V850ES/HF3 product line, designed specifically for deterministic real-time control in industrial equipment where CAN connectivity, Flash reliability, and extended temperature operation are essential.

FAQ

What is the maximum operating frequency of the UPD70F3750GK-GAK-AX?

The UPD70F3750GK-GAK-AX operates at a maximum CPU clock frequency of 40 MHz, achieved using an internal PLL with external crystal oscillator input (typically 4–8 MHz). This frequency enables sub-100 μs interrupt latency and supports real-time control loops in motor drive applications. The UPD70F3750GK-GAK-AX maintains timing accuracy across its full −40°C to +85°C operating range.

Does the UPD70F3750GK-GAK-AX support in-circuit debugging?

Yes, the UPD70F3750GK-GAK-AX supports full in-circuit debugging via its on-chip JTAG interface, compatible with Renesas E1 and E20 debug emulators. This enables real-time register inspection, breakpoint setting, and flash programming without removing the UPD70F3750GK-GAK-AX from the target board. Debug features include hardware watchpoints and trace buffer support for instruction flow analysis.

What peripheral interfaces are integrated into the UPD70F3750GK-GAK-AX?

The UPD70F3750GK-GAK-AX integrates UART (2 channels), I²C (1 channel), CAN 2.0B (1 channel), 8-channel 10-bit ADC, 32-bit timer/counter (3 units), watchdog timer, and programmable GPIO (up to 80 pins). All peripherals are memory-mapped and accessible via dedicated control registers. The UPD70F3750GK-GAK-AX does not include USB, Ethernet, or LCD controllers.

Is the UPD70F3750GK-GAK-AX qualified for industrial temperature operation?

Yes, the UPD70F3750GK-GAK-AX is rated for operation from −40°C to +85°C and classified as a Standard-grade Renesas product, qualified for industrial applications including motor control, PLC modules, and building automation systems. Its electrical specifications - including Flash write endurance and ADC linearity - are guaranteed across this full temperature range per Renesas datasheet U18854EJ2V0UD.

How is Flash memory programmed on the UPD70F3750GK-GAK-AX?

Flash memory on the UPD70F3750GK-GAK-AX is programmed via an on-chip bootloader that supports in-system programming through UART or CAN interfaces. No external programmer is required. The UPD70F3750GK-GAK-AX supports sector erase (2 KB), full chip erase, and byte/word programming with built-in erase/write verification. Flash endurance is specified at 100,000 cycles with data retention exceeding 20 years.