Infineon Technologies CY96F348RSAPQCR-GS-UJE2

Overview

CY96F348RSAPQCR-GS-UJE2 from Infineon Technologies (formerly Cypress) is a 16-bit F2MC-16FX microcontroller with dual CAN 2.0A/B interfaces, 576 KB on-chip Flash (544 KB Flash A + 32 KB Flash B), 24 KB RAM, and 24-channel 10-bit SAR ADC. It operates at up to 56 MHz CPU frequency via internal PLL, supports 100-pin LQFP package, and targets automotive body control, industrial CAN gateways, and real-time embedded systems requiring deterministic timing and flash security.

For engineers reviewing the CY96F348RSAPQCR-GS-UJE2 datasheet, CY96F348RSAPQCR-GS-UJE2 pinout, CY96F348RSAPQCR-GS-UJE2 application, or CY96F348RSAPQCR-GS-UJE2 equivalent, key selection criteria include dual-CAN message object count (32 per channel), programmable pulse generator (16 channels), clock modulation for EMI reduction, and Flash sector protection with 10,000 erase cycles and 20-year data retention.

Technical Context

The CY96F348RSAPQCR-GS-UJE2 implements the F2MC-16FX CPU core with instruction pipeline for RISC-like performance, backward-compatible with 16LX software. Its clock tree supports independent domain selection: CPU clock (up to 56 MHz via PLL ×25 from 4 MHz resonator), peripheral clocks (from main/sub/RC oscillators), and subsystem clock (32–100 kHz quartz).

It integrates two ISO16845-certified CAN controllers (each with 32 message objects, FIFO mode, loop-back test, and Time-Triggered CAN support), seven full-duplex USARTs (SCI/LIN master/slave), two I²C interfaces (400 kbps), and an alarm comparator with dual external voltage monitoring thresholds - all managed by a 16-channel DMA controller and interrupt controller with 8 priority levels.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PQCR), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad (not electrically connected). Pinout validated per Infineon datasheet 002-04579 Rev. *C, pages 7–11.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SPC560B50L5 and STM32F105RCT6, the CY96F348RSAPQCR-GS-UJE2 uniquely combines dual legacy CAN 2.0, hardware clock spreading, Flash B for atomic updates, and alarm comparators - making it optimal for cost-sensitive, EMI-constrained automotive body and industrial gateway designs where 16-bit determinism suffices.

Availability

CY96F348RSAPQCR-GS-UJE2 is available at Aetrix Electronics and suitable for automotive body control modules, industrial CAN gateways, smart HVAC controllers, and medical infusion pumps requiring stable component supply, long-term lifecycle support, and RoHS-compliant LQFP packaging.

Supply support for CY96F348RSAPQCR-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, and security solutions, with global R&D and manufacturing infrastructure.

The CY96F348RSAPQCR-GS-UJE2 belongs to the F2MC-16FX microcontroller family, designed specifically for deterministic real-time control in automotive body electronics and industrial networking - emphasizing CAN robustness, EMI resilience, and secure firmware execution.

FAQ

What is the maximum operating frequency and how is it achieved?

The CY96F348RSAPQCR-GS-UJE2 achieves a maximum CPU frequency of 56 MHz using its on-chip PLL clock multiplier configured to ×25 from a 4 MHz external ceramic resonator. This eliminates the need for a high-frequency crystal while maintaining tight jitter control. The PLL output feeds the CPU clock domain directly, and the resulting 17.8 ns minimum instruction cycle time is verified under recommended operating conditions (2.7–5.5 V, –40°C to +125°C).

Does this MCU include an integrated CAN transceiver?

No, the CY96F348RSAPQCR-GS-UJE2 contains only the CAN protocol controller (MAC layer) and requires an external CAN physical-layer transceiver (e.g., Infineon TLE6250 or TI SN65HVD230) connected to its TX0/RX0 and TX1/RX1 pins. The MCU provides differential signal routing, bus error detection, and automatic retransmission logic, but does not drive the CANH/CANL bus lines directly.

How is Flash security implemented and what protections are available?

Flash security is enforced via a dedicated Flash Security feature that prevents unauthorized read-out of ROM/Flash contents through the serial programming interface. Once enabled, the security bit permanently blocks external access to program memory. Additionally, sector protection allows individual 2 KB Flash sectors to be write-protected, and the memory patch unit enables runtime code replacement without compromising protected regions - supporting secure field updates and debug workflows.

What power-saving modes are supported and how quickly can the device wake from Stop mode?

The MCU supports 13 low-power modes, including Stop mode where CPU, PLL, and most peripherals halt while retaining RAM and register contents. Wake-up is possible via external interrupt (e.g., INT0–INT15), CAN RX activity, or RTC alarm - with typical wake-up latency of ≤5 µs after interrupt assertion. The on-chip 100 kHz RC oscillator ensures immediate clock availability, enabling sub-10 µs resume-to-execution time without waiting for crystal stabilization.