Renesas UPD70F3558M1GMA-GBK-AX

Overview

UPD70F3558M1GMA-GBK-AX from Renesas Electronics is a 32-bit V850E2/FL4 single-chip microcontroller featuring 1.2 MB code flash, 12-bit A/D converter with sample-and-hold, and integrated FlexRay interface. It operates at up to 40 MHz CPU frequency, supports multiple power domains (AWO, ISO0, ISO1), and targets automotive body control modules requiring functional safety support.

For engineers reviewing the UPD70F3558M1GMA-GBK-AX datasheet, UPD70F3558M1GMA-GBK-AX pinout, UPD70F3558M1GMA-GBK-AX application, or UPD70F3558M1GMA-GBK-AX equivalent, key selection criteria include its dual-voltage I/O groups (E0/E1/B0), 12-bit ADC with S/H capability, FlexRay timing compliance per ISO 17458-4, and M1-grade regulator configuration for isolated domain control.

Technical Context

The UPD70F3558M1GMA-GBK-AX implements the V850E2 core with Harvard architecture, supporting 32-bit integer operations and 16-bit compressed instruction set. Its memory subsystem includes 1.2 MB on-chip code flash with ECC, 128 KB RAM, and 64 KB data flash with wear leveling.

Power management uses three independent supply domains: AWO (always-on) with REG0 regulator (1.2 V ±0.1 V), ISO0 with REG1–REG3 regulators (5.5 V max), and ISO1 with B0VDD supply and CVDD (1.1–1.3 V for M2 only). The device supports FLMD0 boot mode selection and hardware reset timing compliant with ISO 16750-2.

Key Specifications

Pinout & Package

UPD70F3558M1GMA-GBK-AX is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are grouped into seven dedicated port banks (P0–P4, P10–P11, P21–P27) and 12 power/ground pairs distributed across all sides for EMI suppression and low-impedance return paths.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD70F3558M1GMA-GBK-AX, the R5F57016ADFP#30 offers higher compute throughput but requires firmware rearchitecture, while the UPD70F3572M1GJA-UEU-AX provides seamless pin-compatible scalability within the same toolchain and safety certification footprint.

Availability

UPD70F3558M1GMA-GBK-AX is available at Aetrix Electronics and suitable for automotive body electronics, door control units, and roof module controllers requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant traceability.

Supply support for UPD70F3558M1GMA-GBK-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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The V850E2/FL4 product line delivers high-integrity 32-bit MCUs for automotive body and chassis applications, emphasizing functional safety (ISO 26262 ASIL-B ready), mixed-signal integration, and multi-domain power management.

FAQ

What is the maximum operating frequency of the UPD70F3558M1GMA-GBK-AX CPU core?

The UPD70F3558M1GMA-GBK-AX features a V850E2/FL4 32-bit RISC core rated for up to 40 MHz operation under standard A1-grade conditions (−40 °C to +110 °C). This frequency is achievable with the main oscillator (X1/X2) running at 20 MHz and PLL multiplication enabled. The core maintains deterministic timing across all operating voltages (E0VDD/E1VDD ≤ 5.5 V) and meets instruction cycle timing specifications defined in Chapter 4 of the R01DS0142ED0100 datasheet.

Does the UPD70F3558M1GMA-GBK-AX support FlexRay communication, and what standards does it comply with?

Yes, the UPD70F3558M1GMA-GBK-AX integrates a fully compliant FlexRay controller meeting ISO 17458-4 requirements. It supports static and dynamic frame segments, dual-channel redundancy, and data rates up to 10 Mbps. Electrical interface compliance with ISO 11898-4 is achieved through dedicated FRAYTX0/FRAYRX0 differential pins. The UPD70F3558M1GMA-GBK-AX implements all mandatory protocol layers including Bus Guardian and clock synchronization mechanisms required for automotive domain controllers.

What are the key power supply domains and their voltage requirements for the UPD70F3558M1GMA-GBK-AX?

The UPD70F3558M1GMA-GBK-AX defines three isolated power domains: AWO (Always-On) supplied by REG0VDD at 1.2 V ±0.1 V; ISO0 supplied by REG1–REG3VDD up to 5.5 V; and ISO1 supplied by B0VDD up to 5.5 V. CVDD (1.1–1.3 V) applies only to M2 variants, not the M1 variant of UPD70F3558M1GMA-GBK-AX. Each domain has dedicated VSS returns, and Table 3-1 in R01DS0142ED0100 specifies exact pin assignments and grouping rules.

How does the UPD70F3558M1GMA-GBK-AX implement analog-to-digital conversion, and what resolution options are available?

The UPD70F3558M1GMA-GBK-AX provides two independent ADC modules: ADCA0 (six channels with sample-and-hold) and ADCA1 (four channels without S/H). Both support 12-bit resolution with conversion times as low as 1.2 μs at 40 MHz CPU speed. When S/H is enabled on ADCA0, full 12-bit accuracy is maintained across all six inputs; without S/H, 10-bit resolution is available on ADCA1 channels. Reference voltages are independently configurable via A0VREFP/A0VREFM and A1VREFP/A1VREFM pins.

Is the UPD70F3558M1GMA-GBK-AX qualified for automotive applications, and what qualification standard does it meet?

Yes, the UPD70F3558M1GMA-GBK-AX is qualified to AEC-Q100 Grade 2 (−40 °C to +110 °C operating temperature), making it suitable for under-hood and cabin automotive applications. It meets reliability requirements for HTOL, TC, AC/DC stress, and ESD (HBM ≥2 kV). The device is designed for ISO 26262 ASIL-B system integration, with built-in safety mechanisms including flash/RAM BIST, ECC, and lockstep CPU option - all documented in the UPD70F3558M1GMA-GBK-AX functional safety manual R01UL0077ED0100.