Infineon Technologies CY96F346RSBPQC-GS-UJE2

Overview

CY96F346RSBPQC-GS-UJE2 from Infineon Technologies (formerly Cypress) is a 16-bit F2MC-16FX microcontroller with dual-clock architecture, 416 KB Flash (Flash A), 16 KB RAM, integrated dual CAN 2.0A/B controllers, 24-channel 10-bit SAR ADC, and 2-channel alarm comparator. It operates up to 56 MHz via on-chip PLL (17.8 ns instruction cycle), supports LIN/SCI/USART/I²C interfaces, and targets automotive body control modules requiring ISO16845-certified CAN communication and low EMI.

For engineers reviewing the CY96F346RSBPQC-GS-UJE2 datasheet, CY96F346RSBPQC-GS-UJE2 pinout, CY96F346RSBPQC-GS-UJE2 application, or CY96F346RSBPQC-GS-UJE2 equivalent, key selection criteria include dual-CAN channel count, 100-pin LQFP package compatibility, Flash A sector protection, subclock RTC calibration capability, and support for Time-Triggered CAN with disabled automatic retransmission.

Technical Context

The CY96F346RSBPQC-GS-UJE2 implements the F2MC-16FX CPU core with RISC-like pipelined execution, 23 addressing modes, barrel shift, and signed 16×16 multiply/32÷16 divide instructions. Its clock tree enables independent CPU (up to 56 MHz) and peripheral domain frequency selection using main oscillator (3–16 MHz), 32–100 kHz subclock, or 100 kHz/2 MHz internal RC oscillator.

Peripheral integration includes two ISO16845-certified CAN controllers (32 message objects each, programmable FIFO/loop-back modes), seven full-duplex USARTs with LIN master/slave support, four I²C channels (400 kbps), and a flexible external bus interface with six chip selects and multiplexed address/data lines - all coordinated by a 16-channel DMA controller.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PQH100), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad (VSS connected).

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, CY96F346RSBPQC-GS-UJE2 uniquely balances dual CAN 2.0A/B, LIN master capability, and 416 KB Flash in a 100-pin LQFP - making it optimal for cost-sensitive, space-constrained automotive junction boxes needing concurrent protocol support without external co-processors.

Availability

CY96F346RSBPQC-GS-UJE2 is available at Aetrix Electronics and suitable for automotive body control units, industrial CAN gateways, smart junction boxes, and electric power steering ECUs requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualification alignment.

Supply support for CY96F346RSBPQC-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.

CY96F346RSBPQC-GS-UJE2 belongs to the F2MC-16FX microcontroller family, designed specifically for automotive body electronics and industrial control applications demanding dual-CAN, LIN, robust flash security, and low EMI operation.

FAQ

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

The CY96F346RSBPQC-GS-UJE2 achieves a maximum CPU frequency of 56 MHz using its on-chip PLL with multiplication factors from x1 to x25. This is driven by an external 4 MHz ceramic resonator or 3–16 MHz crystal, enabling a 17.8 ns instruction cycle time while maintaining low EMI through integrated clock modulation and voltage regulation.

Does this MCU support Time-Triggered CAN (TTCAN) functionality?

Yes - the device supports TTCAN via programmable disable of automatic retransmission in CAN message objects, allowing deterministic transmission scheduling. It also provides loop-back mode for self-test and maskable interrupts per message object, meeting ISO16845 certification requirements for automotive CAN implementations.

How does the dual-clock architecture improve system design flexibility?

The dual-clock architecture allows independent selection of clock sources for CPU and two peripheral domains: main oscillator (3–16 MHz), 32–100 kHz subclock, or 100 kHz/2 MHz internal RC oscillator. This enables precise trade-offs - e.g., running CPU at 56 MHz while peripherals operate at lower frequencies to reduce power or meet timing constraints of external devices.

What flash security mechanisms are implemented?

The device implements Flash Security to prevent unauthorized ROM read-out, plus Memory Patch Function that replaces ROM content dynamically - used for field firmware updates and embedded debug support. Sector protection allows selective locking of Flash regions, and low-voltage detection prevents corruption during erase/write operations.