Infineon Technologies CY9AF315NAPF-G-JNE1

Overview

CY9AF315NAPF-G-JNE1 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, dual QPRC units, and multi-function serial interfaces supporting UART/CSIO/LIN/I²C. It operates up to 40 MHz and targets embedded motor control and industrial automation systems requiring real-time signal acquisition and actuation.

For engineers reviewing the CY9AF315NAPF-G-JNE1 datasheet, CY9AF315NAPF-G-JNE1 pinout, CY9AF315NAPF-G-JNE1 application, or CY9AF315NAPF-G-JNE1 equivalent, this page delivers verified technical context, exact package mapping (100-pin LQFP), confirmed peripheral integration (USB PHY, 12-bit ADC ×3, DMA ×8), and validated alternative options for FM3-series migration paths.

Technical Context

The CY9AF315NAPF-G-JNE1 implements an Arm Cortex-M3 r2p1 core with NVIC supporting 48 peripheral interrupts and 16 priority levels, coupled with a 24-bit SysTick timer for RTOS scheduling. Its memory subsystem includes zero-wait-state Flash and dual-bus-connected SRAM banks-SRAM0 on I-code/D-code buses and SRAM1 on the system bus-enabling concurrent CPU and DMA access.

Peripherals are architected for deterministic motor control: dual QPRC units accept A/B/Z encoder inputs with configurable edge detection and 16-bit position/revolution counters; multi-function timers provide PWM, PPG, dead-time insertion, and A/D activation triggers; and the USB interface integrates both device and host controllers with built-in PLL and endpoint FIFOs (64–256 bytes per endpoint).

Key Specifications

Pinout & Package

This device is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are fully defined in the CY9A310A Series datasheet (Document No. 002-04674 Rev. *F), including dedicated USB D+/D− pins, QPRC AIN/BIN/ZIN inputs, ADC analog inputs, and port-relocatable peripheral signals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit Arm Cortex-M3 microcontroller applications.

Compared with CY9AF315NAPF-G-JNE1, CY9AF316NAPF-G-JNE1 offers drop-in compatibility with added 5V tolerance, while STM32F103VET6 requires significant firmware adaptation due to absence of QPRC, USB host, and port relocation-making it viable only where those features are unused.

Availability

CY9AF315NAPF-G-JNE1 is available at Aetrix Electronics and suitable for industrial motor drives, smart HVAC controllers, PLC I/O modules, and automated test equipment requiring stable component supply and long-term manufacturing continuity.

Supply support for CY9AF315NAPF-G-JNE1 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 industrial control solutions with ISO 9001 and IATF 16949 certified manufacturing.

The CY9AF315NAPF-G-JNE1 belongs to the FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for deterministic real-time control in motor-driven industrial equipment where integrated timing, analog acquisition, and multi-protocol communication reduce system complexity.

FAQ

Does CY9AF315NAPF-G-JNE1 support USB host mode with external device enumeration?

Yes. The device integrates a full USB 2.0 Full-Speed host controller supporting automatic device connect/disconnect detection, IN/OUT token handshake, and up to 256-byte packet length. It enumerates standard class devices (e.g., HID, CDC) without external PHY, using only the internal USB transceiver and PLL.

What is the maximum operating temperature range for CY9AF315NAPF-G-JNE1?

The CY9AF315NAPF-G-JNE1 is rated for industrial temperature operation from −40 °C to +85 °C, as specified in Section 12.2 of the datasheet (Document No. 002-04674 Rev. *F). This range applies across all supported supply voltages (VCC = 2.7–5.5 V) and functional modes including STOP and USB activity.

Can the QPRC units operate independently while the CPU is in STOP mode?

No. QPRC units require the system clock (derived from main or sub clock) to function and are disabled in STOP mode. However, they remain active in SLEEP and TIMER modes, allowing position tracking during low-power operation with wake-up capability via QPRC overflow or compare match interrupts.

Is the port relocation feature available on all GPIO pins?

Port relocation is supported only on GPIO pins designated as multifunctional in the "List of Pin Functions" (Section 4 of datasheet). Pins marked as "Fixed Function Only" (e.g., USB_DP/DM, RESET, INITX) cannot be reassigned. The relocation register map defines exactly which peripheral functions can be assigned to each relocatable port group.