Infineon Technologies CY90F546GSPF-GE1

Overview

CY90F546GSPF-GE1 from Cypress Semiconductor is a 16-bit F2MC-16LX microcontroller with dual FULL-CAN interfaces (CAN 2.0A/B), 256 KB Flash ROM, 8 KB RAM, and QFP-100 package. It operates at up to 16 MHz system clock (62.5 ns min instruction time), supports 8/10-bit 8-channel ADC (26.3 µs conversion), and targets automotive body control modules requiring robust CAN communication and real-time I/O handling.

For engineers reviewing the CY90F546GSPF-GE1 datasheet, CY90F546GSPF-GE1 pinout, CY90F546GSPF-GE1 application, or CY90F546GSPF-GE1 equivalent, key selection criteria include dual-CAN timing compliance, Flash block protection voltage requirements, PLL clock multiplier configuration (×1–×4), and 16-bit I/O timer interrupt latency in safety-critical vehicle networks.

Technical Context

The device implements the proprietary F2MC-16LX CPU core with 23 addressing modes, 32-bit accumulator for extended precision arithmetic, and enhanced C-language support via system stack pointer and barrel shift instructions. Its interrupt subsystem delivers 8 priority levels and 34 interrupt sources-including dedicated CAN message buffers and EI2OS-triggered service requests.

Dual FULL-CAN controllers operate independently at up to 1 Mbps, supporting mixed mailbox/FIFO buffering, automatic retransmission on error, and flexible acceptance filtering (full-bit compare/mask). The external bus interface enables 16 MB address space expansion with 8-/16-bit data width selection and RD/WR handshake timing.

Key Specifications

Pinout & Package

Package: QFP-100 (PQH100), 0.65 mm pitch, 14 × 20 mm body, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.

Compared with MB90F549GSPF-GE1, CY90F546GSPF-GE1 provides 2 KB additional RAM for larger CAN buffer queues and diagnostic log storage; versus R5F566TEADFP, it retains full CAN 2.0A/B interoperability without software abstraction layers.

Availability

CY90F546GSPF-GE1 is available at Aetrix Electronics and suitable for automotive body control units, industrial CAN gateways, and off-highway telematics systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CY90F546GSPF-GE1 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability microcontrollers and analog ICs for automotive, industrial, and IoT applications, with emphasis on functional safety and long-term supply stability.

The MB90540G/545G series was developed specifically for ASIL-B-capable automotive subsystems requiring dual-CAN redundancy, Flash-based field-upgradable firmware, and deterministic real-time I/O response under harsh environmental conditions.

FAQ

What is the minimum instruction execution time for CY90F546GSPF-GE1?

The minimum instruction execution time is 62.5 ns, achieved when operating at 16 MHz system clock (4 MHz crystal ×4 PLL multiplication) and VCC = 5.0 V. This timing applies to single-cycle instructions such as register-to-register moves and logical operations, and is confirmed in the official datasheet revision *B, page 2.

Does CY90F546GSPF-GE1 support CAN FD?

No, CY90F546GSPF-GE1 implements FULL-CAN compliant with ISO 11898-1:2003 (CAN 2.0A/B only), supporting up to 1 Mbps classical CAN frames. It does not support CAN FD's variable bit rate, extended data length, or CRC enhancements-verified in Section 1.1 and CAN Controller chapter of datasheet 002-07696 Rev. *B.

How many A/D converter channels does CY90F546GSPF-GE1 provide?

CY90F546GSPF-GE1 integrates an 8-channel A/D converter with selectable 8-bit or 10-bit resolution. All eight inputs (AN0–AN7) map directly to pins P60–P67, and conversion is triggered externally via ADTG pin or internally by timer events-documented on page 5 and page 37 of the datasheet.

Is external bus interface functionality enabled by default?

No, the external bus interface must be explicitly enabled via the BUSCON register and configured for 8-bit or 16-bit mode. Pins P20–P27 (address lines A16–A23), P30–P37 (ALE, RD, WR, etc.) become active only after bus mode initialization-detailed in Memory Map (page 22) and External Bus Interface section (page 43) of the datasheet.