Renesas UPD70F3768GF-GAT-AX

Overview

UPD70F3768GF-GAT-AX from Renesas Electronics is a 32-bit V850ES/JG3-U microcontroller with 512 KB on-chip Flash, 48 KB RAM, and integrated 16-bit timer/event counters, UART, I²C, and CAN 2.0B controller - used in industrial motor control and factory automation systems requiring deterministic real-time response.

For engineers reviewing the UPD70F3768GF-GAT-AX datasheet, UPD70F3768GF-GAT-AX pinout, UPD70F3768GF-GAT-AX application, or UPD70F3768GF-GAT-AX equivalent, key selection criteria include its 48 MHz max CPU frequency, 100-pin LQFP package, CAN interface compliance, Flash endurance (100k write/erase cycles), and support for on-chip debug via JTAG.

Technical Context

The UPD70F3768GF-GAT-AX implements the V850ES RISC CPU core with 5-stage pipeline, supports both little-endian and big-endian data access, and integrates a PLL-based clock generation unit enabling stable operation across 1–48 MHz system frequencies. It includes a dedicated interrupt controller with 64 vector entries and priority encoding.

Its peripheral set features two independent 16-bit timer/event counter units (TAA/TAB) with input capture, output compare, and PWM generation; a 12-channel 10-bit ADC with hardware-triggered conversion sequencing; and a full-CAN 2.0B controller supporting up to 32 message objects with mailbox arbitration and automatic retransmission.

Key Specifications

Pinout & Package

UPD70F3768GF-GAT-AX 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 V850ES/JG3-U Hardware User's Manual Rev.4.00, Section 1.5 (Pin Configuration) and Section 2.1 (List of Pin Functions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD70F3768GF-GAT-AX, R5F57016ADFP offers higher CPU throughput but requires external CAN implementation and lacks deterministic interrupt latency, while UPD70F3764GF-GAT-AX provides identical timing behavior and pin compatibility at lower memory density.

Availability

UPD70F3768GF-GAT-AX is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and building HVAC controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for UPD70F3768GF-GAT-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 management ICs for industrial, automotive, and IoT applications.

The V850ES/JG3-U product line delivers high-reliability, real-time deterministic microcontrollers optimized for industrial motion control, factory automation, and safety-critical embedded systems operating under extended temperature ranges.

FAQ

What is the maximum operating frequency of the UPD70F3768GF-GAT-AX?

The UPD70F3768GF-GAT-AX operates at a maximum CPU frequency of 48 MHz, achieved using its on-chip PLL with external crystal input (1–20 MHz). This frequency is sustained across the full industrial temperature range (−40°C to +85°C) when powered at 3.3 V ±10%. The V850ES core executes instructions at one cycle per instruction in most cases, delivering predictable real-time performance critical for motor control loops.

Does the UPD70F3768GF-GAT-AX support CAN FD or only classical CAN 2.0B?

The UPD70F3768GF-GAT-AX integrates a classical CAN 2.0B controller compliant with ISO 11898-1:2003, supporting bit rates up to 1 Mbps and 32 message objects with hardware mailbox arbitration. It does not support CAN FD features such as flexible data-rate or extended payload length. For CAN FD requirements, designers must select a newer Renesas RA or RH850 series device.

What debug interface does the UPD70F3768GF-GAT-AX provide?

The UPD70F3768GF-GAT-AX provides an IEEE 1149.1-compliant JTAG interface for on-chip debugging, supporting full visibility into CPU registers, memory, and peripheral states. It is compatible with Renesas E2 emulator and third-party JTAG tools. No SWD or cJTAG is supported - JTAG is the sole standardized debug path for this V850ES/JG3-U device.

Is the UPD70F3768GF-GAT-AX pin-compatible with other V850ES/JG3-U variants like UPD70F3763 or UPD70F3764?

Yes, the UPD70F3768GF-GAT-AX shares identical pinout and package (100-pin LQFP) with UPD70F3763GF-GAT-AX and UPD70F3764GF-GAT-AX. All three devices belong to the same V850ES/JG3-U family and maintain register-level compatibility. Differences lie solely in Flash (512 KB vs. 256 KB vs. 384 KB) and RAM (48 KB vs. 32 KB) capacities - enabling scalable firmware deployment without PCB redesign.

What is the Flash endurance specification for the UPD70F3768GF-GAT-AX?

The UPD70F3768GF-GAT-AX specifies 100,000 write/erase cycles for its on-chip Flash memory, validated per JEDEC JESD22-A117. Each sector can be erased independently, and program operations occur in 128-byte pages. This endurance rating applies across the full industrial temperature range and supports robust firmware update mechanisms in field-deployed equipment.