Infineon Technologies CY9AF112KPMC1-G-JNE2

Overview

CY9AF112KPMC1-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller designed for embedded motor control and industrial automation. It operates at up to 40 MHz, integrates 128 KB MainFlash + 32 KB WorkFlash, 16 KB SRAM (8 KB SRAM0 + 8 KB SRAM1), and features dual 12-bit ADCs with 1.0 μs conversion time, LIN 2.1 support, and hardware CRC acceleration.

For engineers reviewing the CY9AF112KPMC1-G-JNE2 datasheet, CY9AF112KPMC1-G-JNE2 pinout, CY9AF112KPMC1-G-JNE2 application, or CY9AF112KPMC1-G-JNE2 equivalent, this MCU delivers deterministic real-time control via 8-channel Base Timers, QPRC for encoder feedback, dual watchdogs, and SWJ-DP debug interface - all in a 64-pin LQFP package rated for 2.7–5.5 V operation.

Technical Context

This FM3-series MCU implements a tightly coupled ARM Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer for RTOS scheduling. Its memory subsystem includes two independent Flash banks (MainFlash with code protection, WorkFlash sharing security) and dual-bus SRAM architecture separating instruction/data (SRAM0) from system peripherals (SRAM1).

The peripheral set targets motion control: quadrature position/revolution counter (QPRC) with configurable AIN/BIN/ZIN edge detection, 8-channel 16-bit Base Timers supporting PWM/PPG/PWC modes, and multi-function serial interfaces (UART, CSIO, LIN, I²C) with dedicated baud rate generators and FIFOs on select channels.

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 microcontroller applications.

Compared with STM32F103C8T6 and RL78/F13, CY9AF112KPMC1-G-JNE2 uniquely combines LIN 2.1 PHY, QPRC, and dual 12-bit ADCs in a single chip - reducing component count and enabling faster position-loop closure in cost-sensitive industrial drives.

Availability

CY9AF112KPMC1-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, smart power outlets, and PLC I/O modules requiring stable component supply and long-term lifecycle support.

Supply support for CY9AF112KPMC1-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 MCUs, and industrial control solutions, with global manufacturing and R&D infrastructure.

This device belongs to the FM3 family - a line of 32-bit ARM Cortex-M3 microcontrollers engineered specifically for cost-sensitive, real-time embedded applications in motor control, building automation, and industrial IoT edge nodes.

FAQ

What is the maximum operating frequency and supported clock sources?

CY9AF112KPMC1-G-JNE2 runs at up to 40 MHz using five selectable clock sources: 4–48 MHz main crystal oscillator, 32.768 kHz sub-clock, 4 MHz high-speed internal CR oscillator, 100 kHz low-speed internal CR oscillator, and main PLL. The PLL supports both main clock and internal CR inputs, enabling flexible trade-offs between accuracy and power consumption.

Does this MCU support hardware-based LIN communication without external transceivers?

Yes - it integrates a LIN 2.1 protocol controller with built-in break field generation (13–16 bit), break delimiter (1–4 bit), and automatic checksum calculation. However, an external LIN transceiver (e.g., TLE7259-3GE) is still required for physical layer signaling on the bus line.

How does the QPRC peripheral interface with incremental encoders?

The QPRC accepts A/B/Z quadrature signals directly on dedicated pins (QPA/QPB/QPZ). Edge detection polarity is configurable per channel, and it maintains separate 16-bit position and revolution counters with two compare registers - enabling precise homing, speed calculation, and index pulse synchronization without CPU intervention.

What debug interface is supported and what are its key capabilities?

It uses Serial Wire JTAG Debug Port (SWJ-DP), supporting standard ARM CoreSight debugging: halt/resume execution, memory inspection, register read/write, and real-time variable monitoring. SWJ-DP operates over just two pins (SWDIO/SWCLK), eliminating the need for full JTAG cabling while maintaining full trace and breakpoint functionality.