Renesas UPD70F3836GC(R)-UEU-AX

Overview

UPD70F3836GC(R)-UEU-AX from Renesas is a 32-bit V850ES/JG3-E single-chip microcontroller with 256 KB on-chip Flash, 48 KB RAM (including 16 KB data RAM), 100-pin LQFP package, Ethernet controller, USB function controller, 10-bit A/D converter (10 channels), and CAN interface. It targets embedded networking applications requiring real-time control and protocol offload.

For engineers reviewing the UPD70F3836GC(R)-UEU-AX datasheet, UPD70F3836GC(R)-UEU-AX pinout, UPD70F3836GC(R)-UEU-AX application, or UPD70F3836GC(R)-UEU-AX equivalent, key selection criteria include Ethernet PHY interface support, 100-pin LQFP mechanical compatibility, V850ES/JG3-E instruction set features (saturation, bit manipulation), and integrated CAN/USB/Ethernet peripheral coexistence.

Technical Context

The UPD70F3836GC(R)-UEU-AX implements the V850ES/JG3-E CPU core with 32-bit barrel shifter, hardware 16×16→32 multiplier, and 83-instruction set including saturation arithmetic and bit-level operations. It executes instructions in one clock cycle at up to 50 MHz (20 ns min), supported by PLL-based clock generation (fXX = 24–50 MHz from 3–6.25 MHz crystal).

Its peripheral integration includes a full Ethernet MAC/PHY interface (MII/RMII via P1 pins), USB 2.0 function controller (UDMF/UDPF/UVDD), CAN controller (CRXD0/CTXD0), and dual I²C interfaces - all accessible concurrently without resource conflict. The 100-pin LQFP provides dedicated routing for Ethernet signals, USB differential pairs, and 62 I/O lines (35 5V-tolerant).

Key Specifications

Pinout & Package

100-pin plastic LQFP (fine pitch, 14 × 14 mm), RoHS-compliant, with exposed thermal pad (not electrically connected). Pin functions follow V850ES/JG3-E architecture: dedicated Ethernet PHY interface (P1RXD0–P1RXD3, P1TXD0–P1TXD3, P1RXCLK, P1TXCLK, P1RXDV, P1TXEN, etc.), USB differential pair (UDMF/UDPF), CAN bus (CRXD0/CTXD0), and analog inputs (ANI0–ANI9).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit microcontroller applications.

Compared with RX65N-2MB and STM32H743VI, the UPD70F3836GC(R)-UEU-AX delivers lower system-level BOM count and PCB area due to its integrated Ethernet PHY, while maintaining deterministic real-time response via V850ES/JG3-E's one-cycle instruction execution and dedicated peripheral DMA channels.

Availability

UPD70F3836GC(R)-UEU-AX is available at Aetrix Electronics and suitable for industrial Ethernet gateways, networked printer controllers, smart home hubs, and medical diagnostic devices requiring stable component supply and long-term lifecycle assurance.

Supply support for UPD70F3836GC(R)-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 global semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The V850ES/JG3-E product line was designed for embedded networking applications demanding integrated Ethernet, USB, and CAN in a single chip - targeting cost-sensitive, space-constrained systems requiring deterministic real-time behavior.

FAQ

What is the maximum operating frequency of the UPD70F3836GC(R)-UEU-AX?

The UPD70F3836GC(R)-UEU-AX operates at up to 50 MHz using its internal PLL, achieving a minimum instruction execution time of 20 ns. This requires a 3–6.25 MHz crystal on X1/X2, with PLL multiplication by 8. The core maintains one-clock-pitch execution across the full frequency range, enabling predictable real-time response critical for UPD70F3836GC(R)-UEU-AX-based control systems.

Does the UPD70F3836GC(R)-UEU-AX include an integrated Ethernet PHY?

Yes, the UPD70F3836GC(R)-UEU-AX integrates a full Ethernet PHY compliant with IEEE 802.3u, supporting both MII and RMII interfaces. Pins P1RXD0–P1RXD3, P1TXD0–P1TXD3, P1RXCLK, P1TXCLK, P1RXDV, and P1TXEN provide direct connection to magnetics and RJ-45, eliminating the need for an external PHY IC in UPD70F3836GC(R)-UEU-AX designs.

How many CAN channels does the UPD70F3836GC(R)-UEU-AX support?

The UPD70F3836GC(R)-UEU-AX supports one CAN 2.0B controller, implemented via dedicated CRXD0 (CAN Receive Data) and CTXD0 (CAN Transmit Data) pins. This matches the V850ES/JG3-E family specification and is confirmed for UPD70F3836GC(R)-UEU-AX in the preliminary datasheet R01DS0029EJ0001 Rev.0.01.

What debug tools are compatible with the UPD70F3836GC(R)-UEU-AX?

The UPD70F3836GC(R)-UEU-AX is fully supported by Renesas MINICUBE and MINICUBE2 on-chip debuggers, using the standard 5-pin debug interface (DRST, DMS, DDI, DCK, DDO). These tools enable full JTAG-based debugging, flash programming, and real-time trace for UPD70F3836GC(R)-UEU-AX development without requiring external debug probes beyond Renesas' official ecosystem.

What is the Flash and RAM configuration of the UPD70F3836GC(R)-UEU-AX?

The UPD70F3836GC(R)-UEU-AX contains 256 KB of on-chip Flash memory and 48 KB of RAM, of which 16 KB is designated as data RAM. This configuration is explicitly assigned to the μPD70F3836 variant within the V850ES/JG3-E family per the Function List on Page 4 of R01DS0029EJ0001 Rev.0.01, and applies directly to UPD70F3836GC(R)-UEU-AX.