Renesas UPD70F3718GC-8EA-A

Overview

UPD70F3718GC-8EA-A from Renesas Electronics is a 32-bit V850ES/JG2 single-chip microcontroller featuring 512 KB on-chip flash memory, 48 KB RAM, and integrated peripherals including UART, CAN 2.0B controller, 16-bit timer arrays, and 10-bit ADC with 24 channels. It operates at up to 40 MHz and supports industrial temperature range (−40°C to +85°C) in a 100-pin LQFP package. It is used in motor control subsystems for HVAC blowers and industrial servo drives.

For engineers reviewing the UPD70F3718GC-8EA-A datasheet, UPD70F3718GC-8EA-A pinout, UPD70F3718GC-8EA-A application, or UPD70F3718GC-8EA-A equivalent, key selection considerations include its V850ES CPU core compatibility, CAN 2.0B interface timing, flash endurance (10,000 write/erase cycles), and support for on-chip debug via JTAG/IECUBE.

Technical Context

The UPD70F3718GC-8EA-A implements the V850ES RISC architecture with 32-bit data path, 32 general-purpose registers, and 16-bit instruction encoding for code density. It integrates a dedicated CAN 2.0B controller supporting both standard and extended frames, with programmable bit timing and automatic retransmission.

Its peripheral set includes three 16-bit multi-function timer units (each with capture/compare/PWM output), a 10-bit ADC with sample-and-hold and hardware-triggered conversion sequencing, and dual UARTs with LIN support. The device uses a 3.3 V ±10% supply and features internal voltage regulation for core logic.

Key Specifications

Pinout & Package

UPD70F3718GC-8EA-A is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the V850ES/JG2 family layout, with dedicated VDD/VSS pairs per functional block (CPU, analog, I/O) and separate AVCC/AVSS for ADC reference stability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP and MB9BF516RPMC, the UPD70F3718GC-8EA-A delivers optimal balance of CAN-native real-time control, industrial-grade flash endurance, and deterministic interrupt latency - making it ideal for cost-constrained, reliability-critical embedded motor drives where software overhead must be minimized.

Availability

UPD70F3718GC-8EA-A is available at Aetrix Electronics and suitable for industrial motor control, automotive HVAC systems, and programmable logic controller modules requiring stable component supply and long-term lifecycle assurance.

Supply support for UPD70F3718GC-8EA-A 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 leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The UPD70F3718GC-8EA-A belongs to the V850ES/JG2 microcontroller family, designed specifically for deterministic real-time control in resource-constrained embedded systems requiring high noise immunity and long product lifecycles.

FAQ

What is the maximum operating frequency of the UPD70F3718GC-8EA-A?

The UPD70F3718GC-8EA-A operates at a maximum CPU frequency of 40 MHz using its internal PLL with external crystal input (1–20 MHz). This frequency is guaranteed across the full industrial temperature range (−40°C to +85°C) and 3.3 V ±10% supply voltage. The V850ES core achieves one instruction per cycle for most operations, delivering consistent real-time performance for motor control loops and CAN message handling in the UPD70F3718GC-8EA-A.

Does the UPD70F3718GC-8EA-A support CAN FD?

No, the UPD70F3718GC-8EA-A integrates a CAN 2.0B controller compliant with ISO 11898-1:2003, supporting standard (11-bit) and extended (29-bit) frame formats at up to 1 Mbps. It does not implement CAN FD features such as flexible data-rate or enhanced payload length. For CAN FD applications, designers should consider newer Renesas families like RA6T2 or RH850/F1K, as the UPD70F3718GC-8EA-A's CAN peripheral is fixed to classical CAN protocol only.

What debug interfaces are supported by the UPD70F3718GC-8EA-A?

The UPD70F3718GC-8EA-A supports IEEE 1149.1-compliant JTAG for full on-chip debugging, including halt/resume, register read/write, memory access, and flash programming. It also supports Renesas' IECUBE in-circuit emulator interface. No SWD or serial-wire debug is available. Debug functionality is accessible via dedicated TDI/TDO/TCK/TMS/RESET pins, and requires Renesas' E8a or E20 debug probes for production programming and validation of the UPD70F3718GC-8EA-A.

Is the UPD70F3718GC-8EA-A qualified for automotive applications?

The UPD70F3718GC-8EA-A is rated for industrial temperature range (−40°C to +85°C) and classified as "Standard" quality grade per Renesas documentation. While it is used in automotive HVAC systems, it is not AEC-Q100 qualified and lacks automotive-specific stress testing or failure-in-time (FIT) data. For safety-critical automotive applications (e.g., powertrain, braking), Renesas recommends AEC-Q100-qualified parts such as the RH850 series. The UPD70F3718GC-8EA-A remains suitable for non-safety HVAC subsystems where customer qualification is performed independently.

What is the flash endurance specification for the UPD70F3718GC-8EA-A?

The UPD70F3718GC-8EA-A specifies 10,000 write/erase cycles for its 512 KB on-chip flash memory, validated under standard industrial conditions (25°C, VDD = 3.3 V). Endurance is measured per sector (not per byte), and wear leveling must be implemented in firmware if frequent parameter updates are required. Data retention is guaranteed for 20 years at 85°C or 100 years at 25°C. These values are documented in Renesas' U17715EJ2V0UD User's Manual and apply directly to the UPD70F3718GC-8EA-A without derating.