Infineon Technologies CY9AF112KPMC-G-JNCGE2

Overview

CY9AF112KPMC-G-JNCGE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller in the FM3 family, operating up to 40 MHz with 128 KB MainFlash, 32 KB WorkFlash, and 16 KB SRAM (8 KB SRAM0 + 8 KB SRAM1). It integrates motor control timers, dual 12-bit ADCs (1.0 μs conversion @ 5 V), LIN 2.1, UART, I²C, CSIO, and QPRC for position sensing - deployed in industrial motor drives and embedded motion control systems.

For engineers reviewing the CY9AF112KPMC-G-JNCGE2 datasheet, CY9AF112KPMC-G-JNCGE2 pinout, CY9AF112KPMC-G-JNCGE2 application, or CY9AF112KPMC-G-JNCGE2 equivalent, key selection criteria include verified 40 MHz Cortex-M3 performance, dual 12-bit ADC timing (1.0 μs), LIN 2.1 master/slave support, 5 V-tolerant GPIO count (up to 36), and Flash security partitioning between MainFlash and WorkFlash.

Technical Context

This 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 features two independent Flash banks (MainFlash/WorkFlash) with zero-wait-state access and dual-bus SRAM architecture - SRAM0 on I/D-code bus, SRAM1 on system bus - enabling concurrent CPU and DMA access.

The peripheral set is optimized for real-time motor control: Base Timers support 16-/32-bit PWM/PPG/PWC modes; Multi-function Timer provides input capture, output compare, A/D activation, and DTIF emergency stop; QPRC delivers 16-bit position/revolution counting with configurable AIN/BIN/ZIN edge detection; and dual watchdogs (hardware clocked by 100 kHz CR oscillator, software-controlled) ensure fail-safe operation across six low-power modes.

Key Specifications

Pinout & Package

Package: LQFP-64 (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 STM32F303VCT6 and RA4M1, CY9AF112KPMC-G-JNCGE2 uniquely combines LIN 2.1 controller, hardware QPRC, and dual 12-bit ADCs in a 64-pin LQFP - delivering optimal BOM efficiency and deterministic timing for cost-sensitive motor control designs where encoder feedback and LIN networking are mandatory.

Availability

CY9AF112KPMC-G-JNCGE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, smart power tools, and factory automation I/O hubs requiring stable component supply, long-term lifecycle assurance, and qualified sourcing.

Supply support for CY9AF112KPMC-G-JNCGE2 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.

The CY9AF112KPMC-G-JNCGE2 belongs to the FM3 microcontroller family - designed specifically for cost-optimized, real-time embedded control in motor drives, industrial automation, and automotive subsystems requiring integrated analog, timing, and communication peripherals.

FAQ

What is the maximum operating frequency and supported clock sources?

The CY9AF112KPMC-G-JNCGE2 operates up to 40 MHz using five selectable clock sources: 4–48 MHz external main 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 high-speed CR inputs, enabling flexible frequency synthesis while maintaining jitter tolerance for motor control timing.

Does this MCU support hardware-accelerated CRC calculation?

Yes, it includes a dedicated CRC accelerator supporting CCITT CRC16 (polynomial 0x1021) and IEEE-802.3 CRC32 (polynomial 0x04C11DB7). This hardware unit offloads checksum computation from the CPU during firmware OTA updates and serial communication integrity checks, reducing latency by >95% versus software-only implementation.

How many independent ADC modules are integrated and what is their conversion speed?

Two independent 12-bit successive approximation register (SAR) ADC modules are integrated, each capable of 1.0 μs conversion time at 5 V supply. They support priority-based and scanning conversion modes with built-in FIFOs (16-step for scan, 4-step for priority), enabling synchronized sampling of up to eight analog channels for multi-axis motor current sensing.

What low-power modes are available and which peripherals remain active in STOP mode?

Six low-power modes are supported: SLEEP, TIMER, RTC, STOP, Deep stand-by RTC, and Deep stand-by STOP. In STOP mode, the CPU and most peripherals halt, but the RTC, LVD, and wakeup sources (external interrupt, RTC alarm, watchdog timeout) remain active. The 32.768 kHz sub-clock continues running, allowing precise timekeeping and sub-second wake-up intervals.