Renesas UPD70F3379M2GJA-GAE-AX

Overview

UPD70F3379M2GJA-GAE-AX from NEC Electronics is a 32-bit V850ES/FJ3 single-chip microcontroller featuring 384 KB Flash, 32 KB RAM, 144-pin LQFP package, CAN 2.0B interface, and operation at up to 48 MHz across -40°C to +85°C. It integrates A/D converter (10-bit, 16-channel), UART, I²C, CSI, and programmable timers for embedded control in industrial instrumentation.

For engineers reviewing the UPD70F3379M2GJA-GAE-AX datasheet, UPD70F3379M2GJA-GAE-AX pinout, UPD70F3379M2GJA-GAE-AX application, or UPD70F3379M2GJA-GAE-AX equivalent, key selection considerations include its 144-pin LQFP mechanical footprint, dual voltage domains (EVDD/BVDD), CAN timing compliance per ISO 11898-1, Flash programming characteristics at 3.3–5.5 V, and A/D conversion accuracy with AVREF0 reference.

Technical Context

The UPD70F3379M2GJA-GAE-AX implements the V850ES CPU core with Harvard architecture, supporting 32-bit instructions and 16-bit compressed encoding. Its clock system includes main crystal oscillator (up to 32 MHz), sub-oscillator (32 kHz), internal RC oscillator (25–55 kHz), PLL for frequency multiplication, and SSCG for EMI reduction.

It features dual power domains: EVDD supplies I/O and digital logic (including port groups 1x/2x/6/7), while BVDD powers analog peripherals and ADC reference circuitry. Pin Group 4 (P70–P715, P120–P127) is explicitly tied to AVREF0, enabling precise 10-bit A/D conversion with configurable sampling time and trigger sources.

Key Specifications

Pinout & Package

UPD70F3379M2GJA-GAE-AX is housed in a 144-pin LQFP (Low-profile Quad Flat Package) with 0.5 mm pitch, body size 20 × 20 mm, and JEDEC standard marking including "M2GJA" indicating FJ3 series, GAE grade, and AX lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP and MB9BF516RPMC, UPD70F3379M2GJA-GAE-AX delivers native CAN 2.0B with zero external components, deterministic V850ES interrupt latency under 1 μs, and guaranteed operation at 48 MHz with single-supply constraint-making it optimal for legacy industrial CAN networks requiring minimal layout change.

Availability

UPD70F3379M2GJA-GAE-AX is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, energy meter data loggers, and factory automation HMI panels requiring stable component supply across extended product lifecycles.

Supply support for UPD70F3379M2GJA-GAE-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 Japanese semiconductor manufacturer specializing in microcontrollers, memory, and analog ICs for industrial and automotive markets.

The V850ES/FJ3 product line was designed for high-reliability embedded control applications demanding deterministic real-time performance, integrated analog peripherals, and long-term supply stability in industrial automation and transportation systems.

FAQ

What is the maximum operating frequency of the UPD70F3379M2GJA-GAE-AX and under what conditions?

The UPD70F3379M2GJA-GAE-AX achieves a maximum system clock frequency of 48 MHz when VDD = EVDD = BVDD ≥ 4.0 V. At 3.5–4.0 V, maximum frequency drops to 20 MHz; below 3.5 V, only core functions (CPU, Flash, RAM, basic I/O) remain operational. This dependency is strictly enforced by the internal voltage regulator and clock generation circuitry per Section 2.3 of the datasheet.

Does the UPD70F3379M2GJA-GAE-AX support CAN 2.0B, and what hardware resources does it allocate for that function?

Yes, the UPD70F3379M2GJA-GAE-AX integrates a fully compliant CAN 2.0B controller with 32 independent message objects, programmable bit timing registers, and automatic retransmission. Pins P90 (CANRX) and P92 (CANTX) are dedicated to this interface and belong to Pin Group 1D, supplied by EVDD. No external transceiver is included-external PHY required for physical layer connection.

How is analog-to-digital conversion implemented in the UPD70F3379M2GJA-GAE-AX, and what reference voltage options exist?

The UPD70F3379M2GJA-GAE-AX features a 10-bit successive-approximation ADC with 16 input channels mapped to Pin Group 4 (P70–P715, P120–P127). Conversion uses AVREF0 as the reference voltage, which must be supplied externally in the range 3.3–5.5 V. The ADC supports software/start-triggered conversion, scan mode, and sample-and-hold control-all documented in Section 2.8 of the datasheet.

What packaging and lead-free compliance information applies to the UPD70F3379M2GJA-GAE-AX?

The UPD70F3379M2GJA-GAE-AX is supplied in a 144-pin LQFP package (20 × 20 mm, 0.5 mm pitch) with lead-free (Pb-free) finish, indicated by the "-AX" suffix per NEC's marking convention in Section 5.2.2. The package complies with JEDEC standard MS-026 and RoHS Directive 2011/65/EU, with solder reflow profile specified in the device's packaging documentation.

Is the UPD70F3379M2GJA-GAE-AX pin-compatible with other members of the V850ES/FJ3 family, such as UPD70F3378 or UPD70F3380?

Yes, all V850ES/FJ3 devices-including UPD70F3378, UPD70F3379M2GJA-GAE-AX, and UPD70F3380-share identical 144-pin LQFP package dimensions and pinout. Differences lie in Flash size (256 KB / 384 KB / 512 KB) and minor peripheral enablement; thus, UPD70F3379M2GJA-GAE-AX is a direct drop-in replacement for firmware targeting the same pin-mapped hardware design.