Renesas UPD70F3764GC-UEU-AX

Overview

UPD70F3764GC-UEU-AX from Renesas Electronics is a 32-bit V850ES/JG3-U microcontroller featuring 512 KB on-chip Flash memory, 48 KB RAM, and operating at up to 40 MHz. It integrates a 16-bit timer/event counter (TAA), UART, I²C, and 12-bit ADC with 16 channels, targeting embedded control in industrial automation and motor drive systems.

For engineers reviewing the UPD70F3764GC-UEU-AX datasheet, UPD70F3764GC-UEU-AX pinout, UPD70F3764GC-UEU-AX application, or UPD70F3764GC-UEU-AX equivalent, key selection criteria include Flash endurance (100K write/erase cycles), 12-bit ADC resolution with ±1 LSB INL, and support for single-cycle instruction execution in V850ES core architecture.

Technical Context

The UPD70F3764GC-UEU-AX implements the V850ES CPU core with 32-bit address space, 16-bit instruction word, and pipeline architecture enabling single-cycle execution for most instructions. It supports multiple power-saving modes including HALT, STOP, and IDLE, with wake-up via external interrupt or peripheral event.

On-chip peripherals include a 16-bit timer/event counter (TAA) with input capture and PWM output, a 16-bit watchdog timer (WDT), and a clock generation unit with PLL supporting 1–40 MHz system clock from crystal or external clock input. The device uses SuperFlash® technology licensed from Silicon Storage Technology, Inc., enabling fast programming and high reliability.

Key Specifications

Pinout & Package

UPD70F3764GC-UEU-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 Chapter 1.5 (Pin Configuration) and Chapter 2 (Pin Functions) of the Hardware User's Manual Rev.4.00.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD70F3764GC-UEU-AX, the R5F57016ADFP offers higher compute throughput and security features but requires PCB redesign and toolchain migration, whereas the UPD70F3763GC-UEU-AX provides identical compatibility with reduced memory - ideal for incremental cost optimization without architectural change.

Availability

UPD70F3764GC-UEU-AX is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and energy metering interfaces requiring stable component supply across extended product lifecycles.

Supply support for UPD70F3764GC-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 management ICs for industrial, automotive, and infrastructure markets.

The V850ES/JG3-U product line, including UPD70F3764GC-UEU-AX, was designed for deterministic real-time control in harsh industrial environments, emphasizing low-latency interrupt response, Flash endurance, and wide operating voltage range.

FAQ

What is the maximum operating frequency of the UPD70F3764GC-UEU-AX?

The UPD70F3764GC-UEU-AX operates at a maximum frequency of 40 MHz. This is achieved using the on-chip PLL with external crystal input (1–20 MHz) or external clock source. At 40 MHz, the V850ES core delivers single-cycle instruction execution for most operations, enabling tight real-time control loops in motor drive and automation applications. The device maintains full functionality across its specified voltage range of 2.7–5.5 V.

Does the UPD70F3764GC-UEU-AX support in-circuit debugging?

Yes, the UPD70F3764GC-UEU-AX supports in-circuit debugging via a dedicated single-wire debug (SWD) interface using pins P50 (SWDIO) and P51 (SWCLK). This interface is compatible with Renesas E2 emulator and third-party SWD debuggers. No external JTAG header is required, simplifying board layout. Debug features include breakpoint setting, register inspection, and real-time variable monitoring without halting peripheral operation.

What is the Flash memory endurance specification for UPD70F3764GC-UEU-AX?

The UPD70F3764GC-UEU-AX uses SuperFlash® technology with guaranteed endurance of 100,000 write/erase cycles per sector and data retention of 20 years at +85°C. This is validated per Renesas qualification standards and enables robust field firmware updates in industrial equipment. Sector erase granularity allows partial reprogramming without affecting active application code, supporting safe OTA update mechanisms.

How many ADC channels does the UPD70F3764GC-UEU-AX support, and what is their resolution?

The UPD70F3764GC-UEU-AX integrates a 12-bit successive approximation ADC with 16 multiplexed input channels. It achieves ±1 LSB integral nonlinearity (INL) and ±1 LSB differential nonlinearity (DNL) across the full operating temperature range. Conversion time is programmable down to 1.5 μs per sample, and hardware triggering from timers or external events enables synchronized sampling in motor control and power quality monitoring applications.

Is the UPD70F3764GC-UEU-AX pin-compatible with other members of the V850ES/JG3-U family?

Yes, the UPD70F3764GC-UEU-AX is pin-compatible with UPD70F3763GC-UEU-AX and UPD70F3768GC-UEU-AX in the same 100-pin LQFP package. All share identical pin functions, electrical characteristics, and peripheral register maps. Firmware developed for one can be reused across others with only Flash size and RAM configuration adjustments - enabling scalable design reuse across performance tiers without PCB revision.