Renesas UPD70F3802GA-GAM-AX

Overview

UPD70F3802GA-GAM-AX from Renesas Electronics is a 32-bit V850ES/JG3-L microcontroller with on-chip USB 2.0 full-speed controller, 512 KB Flash memory, and 64 KB RAM. It operates at up to 40 MHz, supports 5V I/O tolerance, and integrates UART, SPI, I²C, 16-bit timers, and 12-bit ADC - deployed in industrial HMI, USB-connected sensor gateways, and embedded control systems requiring deterministic real-time response.

For engineers reviewing the UPD70F3802GA-GAM-AX datasheet, UPD70F3802GA-GAM-AX pinout, UPD70F3802GA-GAM-AX application, or UPD70F3802GA-GAM-AX equivalent, this page delivers verified hardware specifications, validated pin functions per Renesas Hardware User's Manual Rev.4.00 (Mar 2014), USB controller integration details, and direct alternative part comparisons for industrial control and USB peripheral design.

Technical Context

The UPD70F3802GA-GAM-AX implements the V850ES CPU core with 5-stage pipeline, supporting both little-endian and big-endian data access. It includes dedicated USB PHY and USB controller logic compliant with USB 2.0 full-speed (12 Mbps) specification, with integrated transceiver and endpoint FIFOs.

Memory subsystem comprises 512 KB on-chip Flash (with ECC and block erase), 64 KB SRAM, and configurable wait-state control for external bus interface. Peripheral clock domain uses PLL-based clock generator with main/sub oscillators, enabling precise USB timing via 48 MHz derived clock synchronized to USB SOF.

Key Specifications

Pinout & Package

UPD70F3802GA-GAM-AX is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Renesas 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-with-integrated-USB applications.

Compared with R5F566TEADFP and STM32F103RCT6, the UPD70F3802GA-GAM-AX uniquely combines 5V-tolerant I/O, on-die USB PHY, ECC Flash, and deterministic V850ES real-time behavior - making it optimal for cost-sensitive, reliability-critical industrial USB peripherals where external components must be minimized.

Availability

UPD70F3802GA-GAM-AX is available at Aetrix Electronics and suitable for industrial USB gateways, embedded HMIs, PLC I/O modules, and portable test instruments requiring stable component supply across multi-year production cycles.

Supply support for UPD70F3802GA-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for industrial, automotive, and infrastructure markets.

The UPD70F3802GA-GAM-AX belongs to the V850ES/JG3-L family, designed specifically for deterministic real-time control applications with integrated USB connectivity - targeting industrial automation, test equipment, and human-machine interface systems where reliability and peripheral integration are critical.

FAQ

What is the maximum operating frequency of the UPD70F3802GA-GAM-AX?

The UPD70F3802GA-GAM-AX operates at a maximum CPU frequency of 40 MHz, achieved using its on-chip PLL with external crystal input. The USB controller requires a precisely derived 48 MHz clock, generated internally from the PLL output - both clocks run concurrently without contention. This dual-clock capability allows real-time CPU execution while maintaining strict USB timing compliance.

Does the UPD70F3802GA-GAM-AX include an on-chip USB physical layer (PHY)?

Yes, the UPD70F3802GA-GAM-AX integrates a full-speed USB 2.0 PHY alongside its USB controller logic. This eliminates the need for an external transceiver chip. The USB_DP and USB_DM pins connect directly to the USB connector with only standard series termination (27 Ω) and the required 1.5 kΩ pull-up resistor on DP - confirmed in Renesas Hardware User's Manual Rev.4.00, Section 6.5.

What package type and pin count does the UPD70F3802GA-GAM-AX use?

The UPD70F3802GA-GAM-AX is supplied in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with an exposed thermal pad. Pin configuration matches the V850ES/JG3-L family layout documented in Renesas Hardware User's Manual Rev.4.00, Section 1.5 - including dedicated USB, ADC, and debug interface pins.

Is the UPD70F3802GA-GAM-AX compatible with 5V logic interfaces?

Yes, the UPD70F3802GA-GAM-AX features 5V-tolerant I/O pins across all general-purpose ports. Inputs accept 0–5.5 V signals regardless of VDD level (2.7–5.5 V), enabling direct connection to legacy 5V sensors, displays, and industrial control logic without level-shifting circuitry - a key differentiator versus most 3.3V-only ARM Cortex-M MCUs.

What development tools are officially supported for the UPD70F3802GA-GAM-AX?

Renesas officially supports the UPD70F3802GA-GAM-AX with the QB-V850MINIL on-chip debug emulator (U17638E), PG-FP5 Flash programmer (U18865E), and CA850 C compiler (Ver. 3.20). The V850ES Architecture User's Manual (U15943E) and Hardware User's Manual (this document) provide complete register mapping, instruction set, and peripheral initialization sequences required for bare-metal or RTOS-based firmware development.