Renesas UPD70F3839GA-GAM-AX

Overview

UPD70F3839GA-GAM-AX from Renesas Electronics is a 32-bit V850ES/JG3-L microcontroller with integrated USB 2.0 full-speed controller, 512 KB on-chip Flash memory, 64 KB RAM, and 100-pin LQFP package. It operates at up to 40 MHz, supports single-cycle instruction execution, and targets embedded control applications requiring real-time USB device connectivity in industrial and office equipment.

For engineers reviewing the UPD70F3839GA-GAM-AX datasheet, UPD70F3839GA-GAM-AX pinout, UPD70F3839GA-GAM-AX application, or UPD70F3839GA-GAM-AX equivalent, key selection criteria include USB controller integration, Flash endurance (100K write/erase cycles), operating voltage range (2.7–3.6 V), and support for on-chip debug via JTAG interface.

Technical Context

The UPD70F3839GA-GAM-AX implements the V850ES CPU core with five-stage pipeline, supporting both little-endian and big-endian data access modes. It integrates a dedicated USB 2.0 full-speed (12 Mbps) controller with internal transceiver, endpoint FIFOs, and descriptor-based DMA transfer control - eliminating need for external PHY.

Its peripheral set includes three 16-bit timer/event counters (TMP), two serial array units (SAU) configurable as UART/SPI/I²C, 12-bit ADC with 16 channels, and programmable watchdog timer. All peripherals are memory-mapped and accessible via APB bus with priority arbitration.

Key Specifications

Pinout & Package

UPD70F3839GA-GAM-AX is housed in a 100-pin LQFP package with exposed thermal pad (package code GA). Pin layout follows standard V850ES/JG3-L pin assignment per Renesas Hardware User's Manual Rev.4.00, Section 1.5.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller-with-integrated-USB applications.

Compared with UPD70F3839GA-GAM-AX, R5F566TEADFP offers higher CPU performance but increases system cost and layout complexity due to external USB PHY, while UPD70F3795GA-GAM-AX provides identical peripheral integration and pin compatibility at lower memory capacity - enabling seamless migration within the same footprint.

Availability

UPD70F3839GA-GAM-AX is available at Aetrix Electronics and suitable for industrial HMI panels, USB peripheral devices, and office equipment controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for UPD70F3839GA-GAM-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 manufacturer headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications.

The UPD70F3839GA-GAM-AX belongs to the V850ES/JG3-L microcontroller product line, designed specifically for cost-sensitive, USB-connected embedded systems requiring high reliability, low power, and minimal external components in industrial and office environments.

FAQ

What is the maximum operating frequency of the UPD70F3839GA-GAM-AX?

The UPD70F3839GA-GAM-AX operates at a maximum CPU clock frequency of 40 MHz. This is achieved using the on-chip PLL with external crystal input (e.g., 8 MHz) or external clock source. At this speed, the V850ES core executes most instructions in a single cycle, delivering predictable real-time performance for USB and control tasks. The UPD70F3839GA-GAM-AX datasheet specifies timing margins under worst-case voltage and temperature conditions.

Does the UPD70F3839GA-GAM-AX include an internal USB transceiver?

Yes, the UPD70F3839GA-GAM-AX integrates a full-speed USB 2.0 transceiver compliant with USB Specification Rev. 2.0. It supports all required electrical characteristics including differential signaling on USB_DP/USB_DM, internal 1.5 kΩ pull-up on USB_DP for device enumeration, and ESD protection up to ±2 kV HBM. No external PHY or termination resistors are required for basic USB device operation.

What debug interface does the UPD70F3839GA-GAM-AX support?

The UPD70F3839GA-GAM-AX supports IEEE 1149.1-compliant JTAG interface for boundary-scan testing and on-chip debugging. It is compatible with Renesas E2 emulator and third-party JTAG tools. The interface provides full visibility into CPU registers, memory, and peripheral states without halting real-time operation - essential for validating USB transaction timing and interrupt latency in the UPD70F3839GA-GAM-AX.

Is the UPD70F3839GA-GAM-AX qualified for industrial temperature range?

Yes, the UPD70F3839GA-GAM-AX is rated for operation from −40 °C to +85 °C and classified as a Standard quality grade device by Renesas. It is intended for use in industrial robots, test equipment, and office automation systems - not for automotive or safety-critical applications. The UPD70F3839GA-GAM-AX meets JEDEC JESD22-A108 reliability standards for temperature cycling and storage life.

How much Flash memory is available on the UPD70F3839GA-GAM-AX?

The UPD70F3839GA-GAM-AX includes 512 KB of on-chip Flash memory with SuperFlash® technology, rated for 100,000 write/erase cycles and 20-year data retention at 85 °C. It supports in-application programming (IAP) and features built-in ECC for single-bit correction and double-bit detection - ensuring robust firmware updates and field reprogramming integrity for the UPD70F3839GA-GAM-AX.