Infineon Technologies CY96F338RSAPMC-GS-UJE2

Overview

CY96F338RSAPMC-GS-UJE2 from Infineon Technologies (formerly Cypress) is a 16-bit F2MC-16FX microcontroller with 544 KB Flash, 32 KB RAM, 3 CAN channels, 8 USARTs, 40-channel 10-bit SAR ADC, and USB Full-Speed functionality. It operates at up to 48 MHz (20.8 ns instruction cycle), features an on-chip PLL, voltage regulator, clock modulator, and supports 13 low-power operating modes. Used in automotive body control modules requiring real-time CAN communication, sensor interfacing, and firmware-upgradable embedded control.

For engineers reviewing the CY96F338RSAPMC-GS-UJE2 datasheet, CY96F338RSAPMC-GS-UJE2 pinout, CY96F338RSAPMC-GS-UJE2 application, or CY96F338RSAPMC-GS-UJE2 equivalent, key selection criteria include dual-clock domain support (main + sub-oscillator), programmable pulse generator (20 channels), alarm comparator (2 channels), external bus interface (24-bit address, 6 CS), and Flash security with 10,000 erase cycles and 20-year data retention.

Technical Context

The CY96F338RSAPMC-GS-UJE2 implements the F2MC-16FX CPU core with instruction pipeline for RISC-like performance, backward-compatible with 16LX software. It integrates three independent CAN 2.0A/B controllers (ISO16845 certified, up to 1 Mbit/s, 32 message objects each) and supports Time-Triggered CAN via disabled automatic retransmission mode.

A flexible clock tree enables independent frequency selection for CPU (up to 48 MHz via PLL) and two peripheral domains using main oscillator, 32–100 kHz sub-oscillator, or 100 kHz/2 MHz internal RC clock. The on-chip voltage regulator reduces internal CPU voltage to lower EMI and power consumption, while clock modulation spreads spectral energy to suppress emission peaks.

Key Specifications

Pinout & Package

Package: 144-pin plastic LQFP (M08), 0.5 mm pitch, body size 10 mm × 10 mm, standard JEDEC MO-220 footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MB9B310R and S9KEAZ128AMLH, CY96F338RSAPMC-GS-UJE2 delivers superior peripheral integration for multi-CAN, high-channel-count sensor control, and USB-enabled field updates-making it optimal for complex automotive body electronics where deterministic timing, Flash security, and hardware-accelerated pulse generation are critical.

Availability

CY96F338RSAPMC-GS-UJE2 is available at Aetrix Electronics and suitable for automotive body control units, industrial CAN gateways, programmable power supply controllers, and smart sensor hubs requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for CY96F338RSAPMC-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 R&D and manufacturing infrastructure.

The CY96F338RSAPMC-GS-UJE2 belongs to the CY96330 series-a 16-bit automotive-qualified microcontroller line designed for real-time body electronics, chassis control, and gateway applications demanding CAN robustness, Flash security, and mixed-signal integration.

FAQ

What clock sources does CY96F338RSAPMC-GS-UJE2 support?

The device supports four clock sources: external 3–16 MHz crystal/resonator (X0/X1), 32–100 kHz sub-oscillator (not available on "S" suffix parts), 100 kHz/2 MHz internal RC oscillator, and PLL-derived clocks up to 48 MHz. Clock domains for CPU and peripherals are independently selectable, enabling concurrent high-speed processing and low-power subsystem operation.

Does CY96F338RSAPMC-GS-UJE2 support USB device and host modes?

Yes-it implements USB Full-Speed (12 Mbps) functionality with Mini-HOST capability supporting up to 6 endpoints. The USB module operates in both device mode (for firmware updates or diagnostics) and host mode (to manage USB peripherals like flash drives or HID devices), with dedicated USB PHY and on-chip transceiver.

How is Flash security implemented on this MCU?

Flash security uses hardware-enforced read-out protection: once enabled, external debug interfaces (JTAG, SWD) cannot access Flash contents, and serial programming is blocked. Security status is latched at reset and requires full Flash erase to disable-preventing unauthorized firmware extraction or tampering in deployed automotive ECUs.

What is the role of the Alarm Comparator in system design?

The dual-channel alarm comparator monitors external analog voltages against user-defined thresholds (via external resistors or internal reference) and asserts interrupt flags without CPU involvement. This enables autonomous battery monitoring, overvoltage shutdown, or sensor fault detection-reducing wake-up latency and extending low-power sleep duration in always-on automotive modules.