Infineon Technologies CY91F466HAPMC-GS-UJE2

Overview

CY91F466HAPMC-GS-UJE2 from Cypress Semiconductor is a 32-bit FR60 RISC microcontroller designed for automotive and industrial embedded control, featuring CAN 2.0B (1 Mbps), LIN-USART (4 channels), 10-bit ADC (16 channels), 8-channel ICU/OCU, and 16-channel PPG timer. It operates at up to 96 MHz core frequency with 3 V–5 V supply and -40 °C to +125 °C temperature range in QFP-144 package.

For engineers reviewing the CY91F466HAPMC-GS-UJE2 datasheet, CY91F466HAPMC-GS-UJE2 pinout, CY91F466HAPMC-GS-UJE2 application, or CY91F466HAPMC-GS-UJE2 equivalent, key selection criteria include CAN/LIN co-integration, real-time interrupt latency (6-cycle save), on-chip voltage supervision, and MD_3-configurable peripheral mapping for vehicle body control and powertrain interface designs.

Technical Context

The CY91F466HAPMC-GS-UJE2 implements the FR60 CPU core with five-stage pipeline, Harvard architecture, and instruction-level multiplier support (signed 32-bit in 5 cycles). It integrates C-CAN controller with 32 message buffers and LIN-USART with sync-break detection and internal baud rate generator.

Its clock system includes main oscillator (4 MHz), sub-clock (32 kHz), RC oscillator (100 kHz/2 MHz), PLL (×25), clock supervisor, and sub-clock calibration-enabling robust timing recovery during oscillator failure and RTC accuracy compensation in automotive environments.

Key Specifications

Pinout & Package

Package: LQFP-144 (14 × 14 mm, 0.5 mm pitch), with separate analog/digital power domains (AVCC5/AVSS5, VDD5/VSS5) and dedicated reset (INITX), clock (X0/X1), and mode pins (MD_0–MD_3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY91F464HB and R7F7010233AFP, the CY91F466HAPMC-GS-UJE2 uniquely balances LIN channel count, CAN performance, and analog integration in a single QFP-144 package-making it optimal for cost-sensitive, space-constrained automotive nodes requiring dual-network connectivity without external PHYs.

Availability

CY91F466HAPMC-GS-UJE2 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and vehicle sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CY91F466HAPMC-GS-UJE2 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 mixed-signal ICs for automotive, industrial, and consumer systems, with emphasis on functional safety and electromagnetic compatibility.

The CY91460H series targets automotive embedded control with integrated CAN/LIN, real-time peripherals, and robust clock/power supervision-designed specifically for ASIL-B–capable body and powertrain subsystems.

FAQ

What is the function of the MD_3 pin on CY91F466HAPMC-GS-UJE2?

The MD_3 pin configures peripheral pin mapping at power-on reset. When pulled high (MD_3 = 1), it enables LIN-USART channels 0–3 and disables the external bus interface; when low (MD_3 = 0), it enables external bus functionality and reduces LIN-USART channel count. This allows hardware-selectable feature sets without firmware changes.

Does CY91F466HAPMC-GS-UJE2 support CAN FD?

No. The device integrates a legacy C-CAN controller compliant with ISO 11898-1:2003 (CAN 2.0B), supporting up to 1 Mbps classical CAN frames only. It does not implement CAN FD arbitration or data phase extensions, nor does it include the required protocol stack hardware acceleration.

How many ADC channels are active in MD_3 = 1 configuration?

In MD_3 = 1 mode, 16 ADC input channels (AN0–AN7 and AN8–AN15) are available, mapped to pins P29_0–P29_7 and P28_0–P28_7 respectively. All 16 channels retain full 10-bit resolution and 1 μs minimum conversion time, with configurable sampling sequence and trigger sources.

Is an external crystal required for CAN operation?

No. CAN timing derives from the internal PLL clock (CLKCAN), which can be sourced from the 4 MHz main oscillator (X0/X1), 32 kHz sub-clock, or 2 MHz RC oscillator. External crystal improves jitter performance but is not mandatory; the clock supervisor ensures failover to backup oscillators if the main crystal stops.