Infineon Technologies CY96F346RSAPQCR-GS-UJE2

Overview

CY96F346RSAPQCR-GS-UJE2 from Infineon Technologies (formerly Cypress) is a 16-bit F2MC-16FX microcontroller with dual-clock architecture, 416 KB Flash (Flash A + Data Flash), 16 KB RAM, integrated dual CAN 2.0A/B controllers (ISO16845 certified), 24-channel 10-bit SAR ADC, and programmable pulse generators. It operates at up to 56 MHz CPU frequency using an on-chip PLL driven by a 4 MHz external resonator, achieving 17.8 ns instruction cycle time. Used in automotive body control modules requiring real-time CAN communication and analog sensor interfacing.

For engineers reviewing the CY96F346RSAPQCR-GS-UJE2 datasheet, CY96F346RSAPQCR-GS-UJE2 pinout, CY96F346RSAPQCR-GS-UJE2 application, or CY96F346RSAPQCR-GS-UJE2 equivalent, key selection criteria include dual-CAN channel count, 24-channel ADC resolution and trigger flexibility, Flash security features, clock domain independence (main/sub/RC), and automotive-grade low-voltage reset persistence with dual-clock support (suffix "R" = dual clock, low-voltage reset disableable).

Technical Context

The CY96F346RSAPQCR-GS-UJE2 implements the F2MC-16FX CPU core with RISC-like pipelined execution, 23 addressing modes, and native 16×16 signed multiply / 32÷16 divide instructions. Its clock system supports three independent domains: main clock (up to 56 MHz via PLL), subclock (32–100 kHz quartz), and 100 kHz/2 MHz internal RC oscillator - each selectable per CPU or peripheral group.

Peripheral integration includes two ISO16845-certified CAN controllers (32 message objects each, FIFO mode, loop-back self-test), seven full-duplex USARTs with LIN master/slave capability, two I²C interfaces (400 kbps), and a 24-channel ADC with dual reference voltage switching (AVRH/AVRL or AVRH2). The device supports 13 low-power operating modes and on-chip voltage regulation for EMI reduction.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PQCR), body size 14 mm × 14 mm, 0.5 mm lead pitch, exposed thermal pad (not electrically connected), JEDEC standard compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SPC560B50L5 and RL78/F13, the CY96F346RSAPQCR-GS-UJE2 delivers higher real-time determinism via dual CAN with FIFO and ISO16845 certification, superior EMI performance through clock modulation and internal voltage regulation, and greater analog interface flexibility with 24-channel ADC and dual reference switching - making it optimal for mid-tier automotive body domain controllers.

Availability

CY96F346RSAPQCR-GS-UJE2 is available at Aetrix Electronics and suitable for automotive body control modules, door module controllers, roof actuation systems, and seat control units requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for CY96F346RSAPQCR-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

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, radar, and security solutions, with global manufacturing and R&D infrastructure.

The CY96F346 belongs to Infineon's legacy F2MC-16FX automotive microcontroller family, designed specifically for cost-effective, high-integration body electronics applications requiring dual CAN, analog sensing, and robust low-power operation in harsh environments.

FAQ

What does the "R" suffix in CY96F346RSAPQCR-GS-UJE2 indicate?

The "R" suffix denotes dual-clock capability (main + sub oscillator) and a low-voltage reset that can be disabled via software configuration. This enables flexible power management in systems requiring both high-speed processing and ultra-low-power RTC operation, such as automotive door modules with wake-on-LIN functionality. It distinguishes the part from "S"-suffix variants with persistent reset behavior.

Does CY96F346RSAPQCR-GS-UJE2 support LIN communication natively?

Yes - the device integrates full LIN 2.1 master and slave functionality within its seven USART channels (SCI/LIN). Each LIN-capable channel supports automatic baud rate synchronization, checksum generation/validation, and header/response timing compliant with LIN specification. No external LIN transceiver is needed for basic node operation, though physical layer compliance requires external driver ICs.

How is Flash security implemented on this MCU?

Flash security is enforced via a dedicated Flash Security Lock bit that, once set, permanently disables external read access to user ROM and Flash memory contents. Additionally, the Memory Patch Function allows selective runtime replacement of ROM code segments without unlocking Flash - enabling secure field updates and debug instrumentation while preserving protected firmware regions.

Can the ADC operate independently of the CPU clock domain?

Yes - the 24-channel 10-bit SAR ADC uses its own dedicated clock derived from the peripheral clock domain, which can be sourced independently from the CPU clock (e.g., subclock or RC oscillator). This allows continuous analog sampling during CPU sleep modes and ensures deterministic conversion timing unaffected by CPU frequency changes or PLL reconfiguration.