Renesas UPD70F3614M2GBA-GAH-AX

Overview

UPD70F3614M2GBA-GAH-AX from NEC Electronics is a 32-bit V850ES/FE3-L single-chip microcontroller featuring 512 KB Flash memory, 32 KB RAM, and a 20 MHz max CPU clock (via PLL). It integrates CAN 2.0B controller, 10-bit 16-channel ADC, UART, I²C, CSI, and POC/LVI reset supervision. Designed for automotive body control modules requiring AEC-Q100 Grade A2 (−40°C to +125°C) operation.

For engineers reviewing the UPD70F3614M2GBA-GAH-AX datasheet, UPD70F3614M2GBA-GAH-AX pinout, UPD70F3614M2GBA-GAH-AX application, or UPD70F3614M2GBA-GAH-AX equivalent, this page delivers verified technical context, package mapping, functional pin roles, real-world use cases, and validated alternative options - all grounded in the official U19190EE1V0DS00 datasheet and NEC product documentation.

Technical Context

The UPD70F3614M2GBA-GAH-AX implements the V850ES CPU core with Harvard architecture, supporting 32-bit integer operations and 16-bit compressed instructions. Its clock system includes main crystal oscillator (4–16 MHz), sub-oscillator (32.768 kHz), RC oscillator (25–55 kHz), and an integrated PLL enabling 10–20 MHz system clock generation with ≤2.0 ns peak-to-peak jitter.

It features dual power domains: EVDD/EVSS for digital I/O and logic, and AVREF0/AVSS for analog peripherals. Pin Groups 1x/2x/6 are EVDD-supplied CMOS/SHMT I/Os; Group 4 (P70–P79) is AVREF0-supplied for ADC inputs; Groups 7 (X1/X2/XT1/XT2) connect to oscillators and operate at VRO (2.5 V regulated output).

Key Specifications

Pinout & Package

UPD70F3614M2GBA-GAH-AX is housed in a 64-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin 1 is marked by a dot; pin numbering follows standard QFP convention (counterclockwise from top-left corner).

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 UPD70F3614M2GBA-GAH-AX offers native CAN 2.0B with minimal external components, proven A2-grade reliability in production BCMs, and deterministic V850ES interrupt latency - making it optimal for legacy automotive platforms where toolchain continuity and qualification history are critical.

Availability

UPD70F3614M2GBA-GAH-AX is available at Aetrix Electronics and suitable for automotive body control modules, door module units, smart junction boxes, and seat control units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for UPD70F3614M2GBA-GAH-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

NEC Electronics Corporation (now part of Renesas Electronics) was a leading Japanese semiconductor manufacturer specializing in microcontrollers, analog ICs, and display drivers for automotive and industrial markets.

The UPD70F3614M2GBA-GAH-AX belongs to the V850ES/FE3-L family, designed specifically for automotive body electronics requiring high reliability, extended temperature operation, and integrated analog/mixed-signal peripherals without external support chips.

FAQ

What is the maximum operating frequency of the UPD70F3614M2GBA-GAH-AX?

The UPD70F3614M2GBA-GAH-AX achieves a maximum system clock frequency of 20 MHz using its integrated PLL, which accepts 3–6 MHz input (derived from main crystal or divided source). The CPU core executes instructions at this rate, and all peripherals-including CAN, UART, and ADC-are synchronized to this clock domain. Operation at 20 MHz is guaranteed across the full −40°C to +125°C A2-grade temperature range when VDD is maintained between 3.3 V and 5.5 V.

Does the UPD70F3614M2GBA-GAH-AX include a hardware CAN controller?

Yes, the UPD70F3614M2GBA-GAH-AX integrates a full CAN 2.0B-compliant controller with 32 message objects, programmable bit timing, automatic retransmission, and error confinement. It supports both standard (11-bit) and extended (29-bit) identifiers and operates independently of the CPU during message transmission/reception-reducing software overhead in automotive network stacks. No external transceiver is included; an external CAN PHY (e.g., TJA1042) must be used.

What power supply domains does the UPD70F3614M2GBA-GAH-AX use?

The UPD70F3614M2GBA-GAH-AX employs three distinct supply domains: EVDD/EVSS powers digital I/O and logic (Pin Groups 1x, 1D, 2A, 2D, 6), AVREF0/AVSS supplies the 10-bit ADC and analog comparators (Pin Group 4), and VRO (2.5 V regulated output) powers internal oscillator circuits (Pin Group 7). This separation minimizes digital switching noise coupling into sensitive analog measurements and ensures stable clock generation.

How is reset managed on the UPD70F3614M2GBA-GAH-AX?

The UPD70F3614M2GBA-GAH-AX uses an integrated Power-on Controller (POC) that monitors VDD and asserts internal reset until VRO stabilizes and VDD reaches ≥3.3 V. The external RESET pin (Group 6) has a 0.2×EVDD threshold and is optional-when unused, the internal POC fully manages reset sequencing. This eliminates need for external reset ICs in most automotive applications, reducing BOM count and board space.

What low-power modes are supported by the UPD70F3614M2GBA-GAH-AX?

The UPD70F3614M2GBA-GAH-AX supports six low-power modes: HALT (10–25 mA), IDLE1 (1.2–4.2 mA), IDLE2 (0.4–1.7 mA), SUB (80–1450 µA), SubIDLE (20–670 µA), and STOP (7.5–550 µA). SubIDLE and STOP modes retain RAM and certain registers while stopping the CPU and main oscillator-enabling wake-up via sub-oscillator events (e.g., RTC alarm or external interrupt) with sub-millisecond latency.