Infineon Technologies CY9AF116NAPF-G-JNE1

Overview

CY9AF116NAPF-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), 100-pin LQFP package, and integrated motor control peripherals including 8-channel Base Timers, 2-unit Multi-function Timers, QPRC, and LIN 2.1 support - deployed in industrial motor drives and automotive body control modules.

For engineers reviewing the CY9AF116NAPF-G-JNE1 datasheet, CY9AF116NAPF-G-JNE1 pinout, CY9AF116NAPF-G-JNE1 application, or CY9AF116NAPF-G-JNE1 equivalent, key selection criteria include its 40 MHz max CPU frequency, dual watchdog (HW + SW), 16-channel 12-bit ADC with FIFO, external bus interface (25-bit address, 8 chip selects), and 5V-tolerant I/O capability on select pins.

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 zero-wait-state Flash execution and dual-bus SRAM architecture - SRAM0 connected to I-code/D-code buses for instruction/data caching, SRAM1 on system bus for DMA-accessible buffers.

The peripheral set is optimized for real-time embedded control: 8-channel DMA controller with independent bus access enables concurrent CPU/DMA operation; multi-function serial interfaces support UART/CSIO/LIN/I2C across up to 8 channels, with ch.4–ch.7 featuring 16-step × 9-bit FIFOs; LIN module supports master/slave mode, programmable break field (13–16 bit), and delimiter generation (1–4 bit).

Key Specifications

Pinout & Package

Package: 100-pin LQFP (LQI100, 0.65 mm pitch), RoHS-compliant, surface-mount, with exposed thermal pad (per Infineon package drawing LQI100).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103VET6 and RA4M1, CY9AF116NAPF-G-JNE1 uniquely combines LIN 2.1 hardware acceleration, external bus interface for scalable memory, and dual QPRC units - making it optimal for cost-sensitive, safety-aware motor control where protocol offload and position fidelity are design-critical.

Availability

CY9AF116NAPF-G-JNE1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, smart power outlets, and factory automation I/O terminals requiring stable component supply across extended product lifecycles.

Supply support for CY9AF116NAPF-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 German semiconductor leader specializing in power management, automotive ICs, and embedded controllers, with global manufacturing and R&D infrastructure.

This device belongs to the FM3 family of 32-bit Arm Cortex-M3 microcontrollers, designed specifically for cost-optimized, high-reliability embedded control in motor drives, automotive body electronics, and industrial automation where real-time peripheral integration and functional safety readiness are essential.

FAQ

What debug interface does CY9AF116NAPF-G-JNE1 support?

CY9AF116NAPF-G-JNE1 supports Serial Wire JTAG Debug Port (SWJ-DP) only - it does not include Embedded Trace Macrocell (ETM). Debugging is performed via SWD pins (TCK, TMS, TDO, TDI, TRSTX) with full core register access, flash programming, and breakpoint support, compatible with standard ARM Cortex-M debug probes.

Does CY9AF116NAPF-G-JNE1 support 5V-tolerant I/O on all pins?

No - only specific pins are 5V-tolerant, including P0A through P0E, P60 through P63, and selected other ports as defined in the "I/O Circuit Type" section of the datasheet (002-04672 Rev. *H, page 38). Core logic remains 3.3 V; applying 5 V to non-tolerant pins may cause permanent damage.

Can the external bus interface operate in 16-bit data mode?

Yes - the external bus interface supports both 8-bit and 16-bit data widths, configurable per chip select. It accommodates 16-bit NOR Flash and SRAM devices with up to 25-bit addressing (256 MB address space), and supports address/data multiplexing and external RDY handshake for timing flexibility with slower memories.

How many LIN channels does CY9AF116NAPF-G-JNE1 implement?

CY9AF116NAPF-G-JNE1 implements one LIN channel (via ch.4 of the multi-function serial interface), fully compliant with LIN specification 2.1. It supports master/slave operation, programmable break field (13–16 bits), break delimiter (1–4 bits), and hardware error detection (parity, framing, overrun) - no additional LIN transceiver is required beyond the physical layer device.