Infineon Technologies CY9BF116SPMC-GK7E1

Overview

CY9BF116SPMC-GK7E1 from Cypress Semiconductor (now Infineon) is a 32-bit ARM® Cortex®-M3 microcontroller in the FM3 CY9B110T Series, designed for high-performance embedded motor control and industrial automation. It operates up to 144 MHz, integrates 1 MB Flash and 128 KB SRAM (64 KB SRAM0 + 64 KB SRAM1), supports LIN 2.1, UART, I²C, CSIO, and features dual watchdog timers, CRC accelerator, and QPRC for encoder-based position sensing in BLDC/PMSM drives.

For engineers reviewing the CY9BF116SPMC-GK7E1 datasheet, CY9BF116SPMC-GK7E1 pinout, CY9BF116SPMC-GK7E1 application, or CY9BF116SPMC-GK7E1 equivalent, key selection criteria include its 176-pin LQFP package, 2.7–5.5 V supply range, hardware/software watchdog independence, flash accelerator enabling zero-wait-state access at 72 MHz, and dedicated motor control peripherals including dead-time insertion and DTIF interrupt.

Technical Context

The CY9BF116SPMC-GK7E1 implements the ARM Cortex-M3 r2p1 core with MPU and NVIC supporting 48 peripheral interrupts across 16 priority levels. Its memory subsystem separates instruction (I-code) and data (D-code) paths via SRAM0, while SRAM1 serves system bus traffic-enabling concurrent CPU/DMA access without contention.

Peripheral integration targets real-time motion control: three multi-function timers provide PWM, PPG, input capture, and A/D activation; three QPRC channels accept quadrature A/B/Z inputs with 16-bit position/revolution counters; and LIN 2.1 support includes configurable break field (13–16 bit) and delimiter (1–4 bit) generation for automotive body electronics compliance.

Key Specifications

Pinout & Package

This device is housed in a 176-pin LQFP (24 × 24 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per "Pin Assignment" (Page 8) and "List of Pin Functions" (Page 11) in Document 002-04683 Rev.*D.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XMC4504-F100K512 AB and R7F7010233AFP, CY9BF116SPMC-GK7E1 uniquely combines LIN 2.1 hardware protocol handling, dual independent watchdogs with CR-oscillator backup, and Flash accelerator - making it optimal for cost-constrained, safety-aware motor nodes requiring minimal external components and robust field firmware updates.

Availability

CY9BF116SPMC-GK7E1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, programmable logic controllers, and smart power meters requiring stable component supply and long-term lifecycle support.

Supply support for CY9BF116SPMC-GK7E1 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 acquired Cypress Semiconductor in 2020; Cypress's FM3 microcontroller family continues under Infineon's industrial MCU portfolio with full technical and supply chain continuity.

The CY9B110T Series was engineered specifically for cost-sensitive, high-reliability embedded motor control and industrial automation - emphasizing integrated peripherals (QPRC, LIN, motor timers), robust fault handling (dual watchdogs, LVD, CSV), and memory architecture optimized for real-time deterministic execution.

FAQ

Does CY9BF116SPMC-GK7E1 support debug via SWD or JTAG?

Yes, it supports Serial Wire JTAG Debug Port (SWJ-DP), enabling both SWD and JTAG interfaces for programming and real-time debugging. The Embedded Trace Macrocell (ETM) provides instruction trace capability for performance analysis. No external debug adapter is required beyond standard ARM-compliant tools such as Segger J-Link or ST-LINK v2 derivatives.

What is the maximum operating temperature range for this MCU?

The CY9BF116SPMC-GK7E1 is rated for industrial temperature range: –40 °C to +85 °C ambient. This is confirmed in Section 12.2 ("Recommended Operating Conditions") of Document 002-04683 Rev.*D. Thermal derating is not required within this range when PCB layout follows recommended copper pour and thermal pad guidelines in Section 6.2.

Can the on-chip SRAM be used for stack and heap allocation simultaneously?

Yes - SRAM0 (64 KB) is accessible via I-code and D-code buses and is ideal for tightly coupled code and stack; SRAM1 (64 KB) connects to the system bus and is suited for heap, DMA buffers, and peripheral register shadowing. The Memory Protection Unit (MPU) allows runtime partitioning to prevent accidental overwrite between regions.

Is the LIN interface fully hardware-implemented or does it require software bit-banging?

The LIN interface is fully hardware-implemented: the peripheral handles break field generation, sync byte, identifier, checksum, and error detection (parity, framing, overrun) autonomously. No CPU intervention is needed for frame transmission/reception - freeing the core for motor control tasks while maintaining strict LIN 2.1 timing compliance.