Renesas UPD70F3350GC(A)-UEU-AX

Overview

UPD70F3350GC(A)-UEU-AX from Renesas Electronics is a 32-bit V850ES/SG3 microcontroller featuring 512 KB on-chip Flash memory, 48 KB RAM, and operating at up to 40 MHz. It integrates a 10-bit ADC with 16 channels, UART, I²C, and CAN 2.0B interface, and targets automotive body control modules requiring ASIL-B functional safety support.

For engineers reviewing the UPD70F3350GC(A)-UEU-AX datasheet, UPD70F3350GC(A)-UEU-AX pinout, UPD70F3350GC(A)-UEU-AX application, or UPD70F3350GC(A)-UEU-AX equivalent, key selection criteria include Flash endurance (100K write/erase cycles), CAN bus timing compliance (ISO 11898-1:2015), and qualification per AEC-Q100 Grade 2 (−40°C to +105°C).

Technical Context

The UPD70F3350GC(A)-UEU-AX implements the V850ES CPU core with five-stage pipeline, supporting both little-endian and big-endian data access. It includes a dedicated CAN controller with message object RAM (16 × 32-bit buffers), programmable clock divider chain for peripheral clock gating, and hardware watchdog timer with independent clock source (LVIWDT).

Its memory subsystem features dual-bank Flash with background operation (BGO) for concurrent read-while-write, and SRAM with parity error detection. The device supports separate bus mode for external memory expansion via 16-bit data/24-bit address bus with programmable wait-state insertion and bus-hold functionality during reset or power-down.

Key Specifications

Pinout & Package

UPD70F3350GC(A)-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 Renesas standard V850ES/SG3 pinout layout, including dedicated CANH/CANL differential pins, multiple I/O ports with configurable pull-up/down, and dedicated debug interface (IEBUS-compatible serial wire debug).

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD70F3350GC(A)-UEU-AX, R5F566TEADFP offers enhanced compute throughput but requires CAN transceiver redesign, while SPC560B50L5 delivers extended temperature range and dual CAN at the cost of increased PCB area and toolchain migration effort.

Availability

UPD70F3350GC(A)-UEU-AX is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor controllers, and smart power distribution modules requiring stable component supply across multi-year production cycles.

Supply support for UPD70F3350GC(A)-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.

The V850ES/SG3 product line delivers AEC-Q100 qualified 32-bit MCUs optimized for cost-sensitive automotive body electronics and industrial control where CAN 2.0B interoperability and ASIL-B readiness are mandatory.

FAQ

What is the maximum operating frequency of the UPD70F3350GC(A)-UEU-AX?

The UPD70F3350GC(A)-UEU-AX operates at a maximum system clock frequency of 40 MHz. This is achieved using an internal PLL that multiplies an external crystal or clock source, with built-in frequency monitoring to detect clock failure. The V850ES core delivers 1.27 DMIPS/MHz at this speed, enabling deterministic real-time response in automotive control loops.

Does the UPD70F3350GC(A)-UEU-AX support CAN FD or only classical CAN?

The UPD70F3350GC(A)-UEU-AX supports only CAN 2.0B (classical CAN) per ISO 11898-1:2015, with bit rates up to 1 Mbps. It does not implement CAN FD features such as flexible data-rate or extended data length. For CAN FD applications, Renesas recommends the RX66T or RA6T2 families - the UPD70F3350GC(A)-UEU-AX remains optimal for legacy CAN networks in body control modules.

Is the UPD70F3350GC(A)-UEU-AX qualified to AEC-Q100 standards?

Yes, the UPD70F3350GC(A)-UEU-AX is qualified to AEC-Q100 Grade 2 (−40°C to +105°C ambient), with full test reports available from Renesas. It meets stress testing requirements including HTOL, TC, ESD, and EMC per AEC-Q100 Rev G. This qualification makes the UPD70F3350GC(A)-UEU-AX suitable for passenger compartment automotive applications without derating.

What debug interface does the UPD70F3350GC(A)-UEU-AX use?

The UPD70F3350GC(A)-UEU-AX uses a 2-wire serial debug interface compatible with Renesas IEBUS protocol and supported by ID850 Ver. 3.00 Integrated Debugger. It provides non-intrusive breakpoints, watchpoints, and real-time register/memory inspection without halting peripheral operation - essential for validating CAN message timing and ADC sampling jitter in the UPD70F3350GC(A)-UEU-AX.

How many ADC channels does the UPD70F3350GC(A)-UEU-AX support, and what is its conversion speed?

The UPD70F3350GC(A)-UEU-AX integrates a 10-bit successive-approximation ADC with 16 input channels. Its maximum conversion speed is ≤1.2 μs per sample under typical conditions (VDD = 5.0 V, fADCLK = 10 MHz). Conversion can be triggered by hardware events including timer overflows, CAN message reception, or external GPIO edges - enabling precise synchronization with motor commutation or sensor polling in UPD70F3350GC(A)-UEU-AX designs.