Infineon Technologies CY9AF112KPMC-G-JNE2

Overview

CY9AF112KPMC-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 128 KB MainFlash, 32 KB WorkFlash, 16 KB SRAM (8 KB SRAM0 + 8 KB SRAM1), and integrated motor control peripherals including 8-channel 12-bit ADC (1.0 μs conversion @ 5 V), quadrature position counter (QPRC), and multi-function timers. It operates up to 40 MHz and supports LIN 2.1, UART, I²C, and CSIO for embedded motor control and industrial automation.

For engineers reviewing the CY9AF112KPMC-G-JNE2 datasheet, CY9AF112KPMC-G-JNE2 pinout, CY9AF112KPMC-G-JNE2 application, or CY9AF112KPMC-G-JNE2 equivalent, key selection criteria include Flash/SRAM partitioning, LIN 2.1 master/slave support, QPRC resolution (16-bit position/revolution counters), RTC with leap-year handling, and dual watchdog architecture (hardware + software).

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 and WorkFlash) with zero-wait-state read access and shared code protection, and dual-bus-connected SRAM banks optimized for instruction/data separation.

The peripheral set targets real-time motion control: Base Timers support 16-/32-bit PWM, PPG, and PWC modes; Multi-function Timer provides input capture, output compare, A/D activation triggers, and DTIF emergency stop interrupt; QPRC accepts configurable edge detection on AIN/BIN/ZIN with dual 16-bit compare registers for encoder position monitoring.

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 32-bit motor control microcontroller applications.

Compared with STM32F303RCT6 and RL78/F13, CY9AF112KPMC-G-JNE2 uniquely combines LIN 2.1 PHY support, QPRC hardware, and dual Flash banks - enabling certified automotive-grade motor control without external components or performance compromises.

Availability

CY9AF112KPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, smart power meters, and factory automation sensors requiring stable component supply across extended product lifecycles.

Supply support for CY9AF112KPMC-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 part belongs to the FM3 family of 32-bit ARM Cortex-M3 microcontrollers, designed specifically for cost-sensitive, high-reliability embedded motor control and industrial automation applications requiring integrated analog, timing, and communication peripherals.

FAQ

What is the maximum operating frequency and supported clock sources?

CY9AF112KPMC-G-JNE2 operates up to 40 MHz using five selectable clock sources: external main oscillator (4–48 MHz), 32.768 kHz sub-clock, high-speed internal CR (4 MHz), low-speed internal CR (100 kHz), and Main PLL. The PLL supports both external crystal and internal CR inputs, enabling flexible trade-offs between accuracy and power consumption.

Does this MCU support hardware-based LIN 2.1 communication without external transceivers?

Yes - the MCU integrates a LIN 2.1 protocol engine with configurable break field (13–16 bit), break delimiter (1–4 bit), and automatic checksum generation. However, an external LIN transceiver (e.g., TLE7259-3GE) is still required for physical layer signaling on the bus, as the MCU provides only the protocol logic.

How does the dual Flash architecture improve firmware update reliability?

MainFlash stores the active application firmware, while WorkFlash holds update images. Code protection is independently configurable per bank, allowing safe over-the-air updates: the bootloader validates the new image in WorkFlash before swapping execution to it, preventing bricking during power loss or corruption.

What low-power modes are available and what is the lowest achievable current draw?

Six modes are supported: SLEEP, TIMER, RTC, STOP, Deep stand-by RTC, and Deep stand-by STOP. In Deep stand-by RTC mode with 32.768 kHz sub-clock active and RTC running, typical current draw is 1.2 μA - sufficient for multi-year battery operation in remote sensor nodes with periodic wake-up events.