Infineon Technologies CY9AF111KPMC1-G-JNE2

Overview

CY9AF111KPMC1-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller optimized for motor control and embedded industrial applications. It operates at up to 40 MHz, integrates 128 KB MainFlash + 32 KB WorkFlash with 0-wait-state read, 16 KB dual-bank SRAM (SRAM0/SRAM1), and features motor-specific peripherals including 8-channel 12-bit ADC (1.0 μs conversion), QPRC encoder interface, and multi-function timers with dead-time insertion.

For engineers reviewing the CY9AF111KPMC1-G-JNE2 datasheet, CY9AF111KPMC1-G-JNE2 pinout, CY9AF111KPMC1-G-JNE2 application, or CY9AF111KPMC1-G-JNE2 equivalent, key selection criteria include LIN 2.1 support, dual watchdog architecture (hardware + software), CRC16/32 acceleration, RTC with leap-year handling, and 5 V-tolerant GPIO capability across up to 36 pins.

Technical Context

This MCU implements the ARM Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus SysTick timer for RTOS scheduling. Its clock system includes five sources-main oscillator (4–48 MHz), sub-clock (32.768 kHz), high-speed (4 MHz) and low-speed (100 kHz) internal CR oscillators, and a configurable main PLL.

The peripheral set is purpose-built for real-time motor control: QPRC accepts A/B/Z quadrature inputs with configurable edge detection and provides 16-bit position/revolution counters; multi-function timers support PWM, PPG, PWC, and DTIF (motor emergency stop) interrupt generation; and LIN 2.1 transceiver mode enables automotive body electronics communication without external transceivers.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control microcontroller applications.

Compared with STM32F303K8T6 and RL78/F13, CY9AF111KPMC1-G-JNE2 uniquely combines ARM Cortex-M3 real-time determinism, native LIN 2.1, QPRC, and motor-specific timers in a single 64-pin LQFP package-enabling compact, low-BOM designs for mid-tier industrial and automotive motor nodes.

Availability

CY9AF111KPMC1-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart appliance development, and energy monitoring systems requiring stable component supply and long-term lifecycle support.

Supply support for CY9AF111KPMC1-G-JNE2 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 is a German semiconductor leader specializing in power management, automotive ICs, and embedded controllers, with global manufacturing and R&D infrastructure.

This device belongs to the FM3 family of 32-bit microcontrollers designed specifically for cost-effective, high-reliability motor control and industrial automation applications requiring integrated analog, timing, and communication peripherals.

FAQ

What is the maximum operating frequency and supported voltage range?

CY9AF111KPMC1-G-JNE2 operates at up to 40 MHz and supports a wide supply voltage range of 2.7 V to 5.5 V. This enables direct interfacing with both 3.3 V logic and legacy 5 V industrial sensors and actuators without level-shifting circuitry. The internal voltage regulator maintains stable core operation across this range, and 5 V-tolerant GPIO pins simplify mixed-voltage system design.

Does this MCU support hardware-accelerated cryptographic functions?

No, CY9AF111KPMC1-G-JNE2 does not include hardware cryptographic accelerators such as AES or SHA engines. It does feature a dedicated CRC accelerator supporting CCITT CRC16 and IEEE-802.3 CRC32 for data integrity verification in firmware updates and communication protocols like LIN and UART. For secure boot or encrypted communication, external secure elements or software-based libraries must be used.

How many independent clock sources are available and what are their roles?

The MCU provides five independent clock sources: main oscillator (4–48 MHz), sub-clock (32.768 kHz), high-speed internal CR (4 MHz), low-speed internal CR (100 kHz), and main PLL. The main oscillator drives CPU and high-speed peripherals; the sub-clock powers RTC and low-power wake-up; internal CR clocks enable operation without external crystals; and the PLL generates higher-frequency clocks for performance-critical subsystems while maintaining flexibility in power/performance trade-offs.

Is there on-chip debug support and what interface is used?

Yes, CY9AF111KPMC1-G-JNE2 includes Serial Wire JTAG Debug Port (SWJ-DP) compliant with ARM CoreSight standards. This supports full-featured debugging including breakpoints, watchpoints, real-time variable inspection, and flash programming via standard tools like Segger J-Link or ST-Link v2 adapters. SWJ-DP uses only four pins (SWDIO, SWCLK, NRST, GND), minimizing debug footprint compared to legacy JTAG.