Renesas UPD70F3620M2GCA2-UEU-AX

Overview

UPD70F3620M2GCA2-UEU-AX from Renesas Electronics (formerly NEC Electronics) is a 32-bit V850ES/FF3-L single-chip microcontroller featuring 256 KB Flash, 16 KB RAM, 80-pin LQFP package, -40°C to +125°C operating range (A2-grade), and integrated CAN 2.0B controller. It targets automotive body control modules requiring high-temperature reliability and real-time communication.

For engineers reviewing the UPD70F3620M2GCA2-UEU-AX datasheet, UPD70F3620M2GCA2-UEU-AX pinout, UPD70F3620M2GCA2-UEU-AX application, or UPD70F3620M2GCA2-UEU-AX equivalent, key selection criteria include A2-grade temperature rating, on-chip PLL supporting up to 20 MHz system clock, 10-bit 16-channel ADC with AVREF0 reference, dual voltage regulator (VRO = 2.5 V), and CAN interface timing compliance per ISO 11898-1.

Technical Context

The UPD70F3620M2GCA2-UEU-AX implements the V850ES CPU core with Harvard architecture, 3-stage pipeline, and 16/32-bit mixed instruction set. Its clock system integrates main crystal oscillator (4–16 MHz), sub-oscillator (32.768 kHz), 240 kHz/8 MHz internal RC oscillators, and a PLL with 3–6 MHz input and 10–20 MHz output.

Power management includes HALT, IDLE1/IDLE2, SUB, SubIDLE, and STOP modes with current consumption as low as 20 µA in SubIDLE (crystal) and 7.5 µA in STOP (POC stop, 240 kHz OSC off). The device supports POC (Power-On Control) for automatic internal reset stabilization and features LVI (Low-Voltage Interrupt) with programmable threshold.

Key Specifications

Pinout & Package

UPD70F3620M2GCA2-UEU-AX is housed in an 80-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) package with EVDD/EVSS power domains, AVREF0/AVSS analog supply, and dedicated crystal (X1/X2) and sub-crystal (XT1/XT2) terminals. Pin groups are electrically isolated by supply domain to minimize noise coupling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP#30 and SPC560B50L5, the UPD70F3620M2GCA2-UEU-AX provides optimal balance of CAN integration, A2-grade thermal robustness, and proven legacy support for cost-constrained automotive body electronics - without requiring safety certification overhead or sacrificing analog peripheral density.

Availability

UPD70F3620M2GCA2-UEU-AX is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor interface units, and commercial HVAC controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for UPD70F3620M2GCA2-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 leader formed from the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The UPD70F3620M2GCA2-UEU-AX belongs to the V850ES/FF3-L family - designed specifically for automotive body electronics and industrial control applications demanding high-temperature operation, integrated communication peripherals, and low-power sleep modes.

FAQ

What is the maximum system clock frequency supported by the UPD70F3620M2GCA2-UEU-AX?

The UPD70F3620M2GCA2-UEU-AX supports a maximum system clock frequency of 20 MHz via its integrated PLL, which accepts input frequencies from 3 MHz to 6 MHz and multiplies them to generate the final fxx clock. This 20 MHz operation is fully characterized across the -40°C to +125°C A2-grade temperature range and is validated in the datasheet's AC characteristics section for all major peripherals including CAN, UART, and timers.

Does the UPD70F3620M2GCA2-UEU-AX include an integrated voltage regulator?

Yes, the UPD70F3620M2GCA2-UEU-AX includes an on-chip voltage regulator that generates a stable 2.5 V output (VRO) from the main EVDD supply. This VRO powers internal logic and is used as a reference for the POC circuit, enabling automatic reset assertion until regulation is stable - eliminating the need for external reset ICs in automotive designs.

How many CAN channels does the UPD70F3620M2GCA2-UEU-AX support?

The UPD70F3620M2GCA2-UEU-AX integrates one CAN 2.0B controller with full protocol handling, message RAM, and acceptance filtering. It supports bit rates up to 1 Mbps and complies with ISO 11898-1 timing requirements. The CAN interface uses dedicated pins PCM0 (TXD) and PCM1 (RXD), and is electrically isolated from general-purpose I/O domains.

What is the Flash memory endurance and data retention specification for the UPD70F3620M2GCA2-UEU-AX?

The UPD70F3620M2GCA2-UEU-AX features 256 KB of SuperFlash® technology-based Flash memory with guaranteed 100,000 write/erase cycles and 20-year data retention at +85°C. These specifications are explicitly confirmed in Section 2.12 ("Data Retention Characteristics") and Section 2.13 ("Flash Memory Programming Characteristics") of the official datasheet U19191EE1V0DS00.

Is the UPD70F3620M2GCA2-UEU-AX qualified for automotive under-hood applications?

Yes, the UPD70F3620M2GCA2-UEU-AX carries the A2-grade qualification, specifying guaranteed operation from -40°C to +125°C ambient temperature. This rating, combined with its POC, LVI, and CAN 2.0B compliance, makes it suitable for under-hood automotive applications such as engine bay sensors, fan controllers, and body control modules exposed to high thermal stress.