Infineon Technologies MB9AF311LAPMC-G-JNE2

Overview

MB9AF311LAPMC-G-JNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller targeting high-performance motor control and industrial embedded applications. It operates at up to 40 MHz, integrates 512 KB on-chip Flash and 32 KB SRAM (split into two 16 KB banks), and features dual USB interfaces (Device + Host), 16-channel 12-bit ADC with 1.0 µs conversion time, and dedicated motor control peripherals including QPRC, multi-function timers with dead-time insertion, and PWM/PPG waveform generation.

For engineers reviewing the MB9AF311LAPMC-G-JNE2 datasheet, MB9AF311LAPMC-G-JNE2 pinout, MB9AF311LAPMC-G-JNE2 application, or MB9AF311LAPMC-G-JNE2 equivalent, key selection criteria include USB Full-Speed device/host capability, 100-pin LQFP package with 83 GPIOs, dual watchdog timers (hardware + software), CRC accelerator for CCITT CRC16/IEEE-802.3 CRC32, and support for low-power STOP/SLEEP/TIMER modes with sub-32.768 kHz wake-up.

Technical Context

The MB9AF311LAPMC-G-JNE2 implements an Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, plus a 24-bit SysTick timer. Its clock system includes five sources - main oscillator (4–48 MHz), sub-clock (32.768 kHz), two built-in CR oscillators (4 MHz / 100 kHz), and Main/USB PLLs - with Clock Supervisor (CSV) monitoring external clock integrity.

Peripheral architecture features a dedicated 8-channel DMA controller operating on an independent bus, three 12-bit successive-approximation ADC units (2 units confirmed for this variant), quadrature position/revolution counters (QPRC) with configurable AIN/BIN/ZIN edge detection, and multi-function serial interfaces supporting UART, CSIO, LIN 2.1, and I²C across eight channels - four with 16×9-bit FIFOs.

Key Specifications

Pinout & Package

This device is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad, rated for industrial temperature range (−40°C to +85°C). Pin functions are fully defined per Infineon's CY9A310A Series datasheet Rev. *F, including dedicated USB D+/D−, QPRC AIN/BIN/ZIN, ADC input channels, and programmable port relocation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit motor control microcontroller applications.

Compared with MB9AF312LAPMC-G-JNE2, the MB9AF311LAPMC-G-JNE2 omits EBI to reduce pin count and simplify routing - ideal for self-contained motor controllers. Against STM32F303RET6, it trades FPU and op-amps for dedicated motor peripherals and dual USB, making it more suitable for encoder-driven motion systems without external analog components.

Availability

MB9AF311LAPMC-G-JNE2 is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers (PLCs), and medical infusion pumps requiring stable component supply, long-term lifecycle support, and qualified automotive-grade reliability under industrial temperature conditions.

Supply support for MB9AF311LAPMC-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 quality certification to ISO/TS 16949 and IECQ QC 080000.

The FM3 family - including MB9AF311LAPMC-G-JNE2 - was designed specifically for cost-sensitive, high-reliability motor control and industrial automation applications, emphasizing integrated timing, analog, and communication peripherals to minimize external component count.

FAQ

What is the maximum operating frequency and supported clock sources for MB9AF311LAPMC-G-JNE2?

The MB9AF311LAPMC-G-JNE2 operates at up to 40 MHz using its Arm Cortex-M3 core. Valid clock sources include an external main oscillator (4–48 MHz), 32.768 kHz sub-clock, built-in 4 MHz and 100 kHz CR oscillators, and Main/USB PLLs. The Main PLL can multiply either the main oscillator or the 4 MHz CR clock to achieve the required core frequency, with CSV supervision ensuring clock stability.

Does MB9AF311LAPMC-G-JNE2 support USB host functionality, and what peripheral types can it manage?

Yes, MB9AF311LAPMC-G-JNE2 supports USB 2.0 Full-Speed and Low-Speed host mode with automatic device connect/disconnect detection, IN/OUT token handshake, and up to 256-byte packet length. It can manage standard USB class devices including HID keyboards/mice, CDC ACM modems, mass storage devices (via FAT filesystem), and custom vendor-class peripherals - all without external PHY, leveraging its integrated transceiver and dedicated USB RAM.

How many ADC channels are available, and what is their conversion performance?

The MB9AF311LAPMC-G-JNE2 integrates two 12-bit successive-approximation ADC units (as confirmed for this variant), supporting up to 16 total analog input channels. Each unit achieves 1.0 µs conversion time at 5 V supply, with configurable priority levels, scanning mode, and built-in FIFO (16-step for scan, 4-step for priority) - enabling synchronized sampling across multiple current/voltage sensors in motor phase control loops.

Is MB9AF311LAPMC-G-JNE2 pin-compatible with other FM3 series MCUs, and what package does it use?

MB9AF311LAPMC-G-JNE2 uses a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) and shares pinout compatibility with other FM3 devices in the same package variant - including MB9AF312LAPMC-G-JNE2 and MB9AF314LAPMC-G-JNE2 - except for EBI-related pins (absent in MB9AF311LA). This enables hardware reuse across firmware variants where external memory is not required.