Infineon Technologies CY9AF316NAPMC-GNE2

Overview

CY9AF316NAPMC-GNE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 microcontroller with 512 KB on-chip Flash, 32 KB SRAM (split into two 16 KB banks), USB 2.0 Full-Speed device/host interface, and integrated motor control peripherals including 8-channel Base Timers, QPRC, and multi-function timers. It operates up to 40 MHz and supports LIN 2.1, I²C, UART, CSIO, and ADC with 1.0 μs conversion time-used in industrial motor drives and embedded control systems requiring real-time timing and mixed-signal integration.

For engineers reviewing the CY9AF316NAPMC-GNE2 datasheet, CY9AF316NAPMC-GNE2 pinout, CY9AF316NAPMC-GNE2 application, or CY9AF316NAPMC-GNE2 equivalent, key selection criteria include its dual-bank SRAM architecture for deterministic interrupt latency, hardware LIN break field generation (13–16 bit), USB host/device dual-mode capability with automatic device detection, and 5V-tolerant GPIO support confirmed for this package variant.

Technical Context

The CY9AF316NAPMC-GNE2 implements an Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts across 16 priority levels and a 24-bit SysTick timer. Its memory subsystem features zero-wait-state Flash execution and separate I-code/D-code bus access to SRAM0, enabling concurrent instruction fetch and data access.

Peripherals are tightly coupled to the CPU via dedicated buses: the 8-channel DMA controller operates independently of the CPU, while the USB module integrates a dedicated PLL and supports endpoint double buffering (64-byte for EP0/2–5, 256-byte for EP1). The QPRC unit provides 16-bit position/revolution counters with configurable AIN/BIN/ZIN edge detection for encoder interfacing.

Key Specifications

Pinout & Package

CY9AF316NAPMC-GNE2 is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are fully documented in the FM3 Peripheral Manual and CY9A310A Series datasheet (002-04674 Rev. *F), including 5V-tolerant GPIOs, dedicated USB D+/D− pins, and QPRC AIN/BIN/ZIN inputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303VCT6 and RL78/F13, CY9AF316NAPMC-GNE2 uniquely integrates USB host/device, LIN 2.1 with programmable break, and QPRC in a single chip - reducing component count and firmware complexity for industrial motor gateways and automotive body controllers.

Availability

CY9AF316NAPMC-GNE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, USB human interface hubs, and smart metering gateways requiring stable component supply and long-term lifecycle support.

Supply support for CY9AF316NAPMC-GNE2 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and security solutions.

CY9AF316NAPMC-GNE2 belongs to the FM3 family of 32-bit Arm Cortex-M3 microcontrollers designed specifically for cost-sensitive, high-performance embedded control applications requiring integrated motor control, USB connectivity, and automotive-grade communication protocols.

FAQ

Does CY9AF316NAPMC-GNE2 support USB host mode with automatic device enumeration?

Yes. The device integrates a full USB 2.0 Full-Speed host controller with built-in PLL and automatic device connect/disconnect detection. It supports bulk, interrupt, and isochronous transfers across up to 256-byte packets and handles descriptor requests without external firmware intervention.

What is the maximum operating voltage for GPIO pins on CY9AF316NAPMC-GNE2?

This variant supports 5V-tolerant I/O on designated pins (e.g., P00–P07, P10–P17 per datasheet section "Pin Description"). These pins tolerate up to 5.5 V regardless of VCC level, enabling direct interfacing with legacy 5V logic and sensors without level shifters.

Can the QPRC unit operate independently of the CPU clock?

Yes. The Quadrature Position/Revolution Counter uses its own clock source derived from the peripheral clock domain and continues counting during SLEEP and TIMER low-power modes. Its 16-bit position and revolution counters retain values and generate interrupts upon compare match without CPU wake-up.

Is hardware flow control available on all UART channels?

No. Hardware RTS/CTS flow control is supported only on UART channel 4, as explicitly documented in the CY9A310A Series datasheet (page 2). Channels 0–3 and 5–7 lack dedicated RTS/CTS pins and require software-based flow control or external logic for high-speed serial handshaking.