Infineon Technologies CY9BF116TBGL-G-K5E1

Overview

CY9BF116TBGL-G-K5E1 from Cypress Semiconductor (now Infineon) is a 32-bit ARM® Cortex®-M3 microcontroller optimized for motor control and industrial embedded systems. It operates at up to 144 MHz, integrates 1 MB Flash and 128 KB SRAM (64 KB SRAM0 + 64 KB SRAM1), supports LIN 2.1, UART, I²C, and CSIO interfaces, and features dual watchdog timers, hardware CRC acceleration, and QPRC for encoder position sensing - deployed in brushless DC motor drives and factory automation controllers.

For engineers reviewing the CY9BF116TBGL-G-K5E1 datasheet, CY9BF116TBGL-G-K5E1 pinout, CY9BF116TBGL-G-K5E1 application, or CY9BF116TBGL-G-K5E1 equivalent, key selection criteria include its 144 MHz Cortex-M3 core with MPU, dual 16-bit PWM/PPG timers per channel, 32-channel 12-bit ADC with 1.0 µs conversion time at 5 V, 154 fast I/O pins in 176-pin LQFP, and integrated LIN master/slave support for automotive body electronics.

Technical Context

This FM3-series MCU implements a deterministic real-time architecture centered on the ARM Cortex-M3 r2p1 core with NVIC (48 peripheral interrupts, 16 priority levels), SysTick timer, and Memory Protection Unit. Its peripheral set is purpose-built for closed-loop motion control: three multi-function timers provide PWM, dead-time insertion, A/D activation triggers, and DTIF emergency stop interrupts; QPRC units directly interface quadrature encoders with 16-bit position/revolution counters and configurable AIN/BIN/ZIN edge detection.

The memory subsystem uses dual-bus SRAM partitioning (SRAM0 on I/D-code bus, SRAM1 on system bus) and a Flash accelerator with 16 KB trace buffer to eliminate wait states up to 72 MHz - enabling zero-wait-state execution even at 144 MHz via prefetch and caching. Clock supervision includes CSV monitoring of external oscillators against built-in CR clocks, while dual LVD stages (LVD1 interrupt, LVD2 reset) support fail-safe power management in industrial environments.

Key Specifications

Pinout & Package

This device is housed in a 176-pin LQFP package (16 × 16 mm, 0.4 mm pitch) with exposed thermal pad, supporting 154 fast GPIOs - including 5 V-tolerant pins for mixed-voltage interfacing. Pin functions are relocatable via software configuration, enabling flexible PCB layout for motor gate drivers and sensor interfaces.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XMC4504 and R7F7016843AFP-C, CY9BF116TBGL-G-K5E1 uniquely combines LIN 2.1, QPRC, and Flash-accelerated Cortex-M3 execution in a single industrial-grade package - making it optimal for cost-sensitive, encoder-based motor control where LIN connectivity and deterministic timing are essential.

Availability

CY9BF116TBGL-G-K5E1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, factory automation I/O terminals, and smart power metering systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for CY9BF116TBGL-G-K5E1 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

Cypress Semiconductor was acquired by Infineon Technologies in 2020 and now operates as Infineon's Embedded Power Division, delivering high-reliability microcontrollers for industrial and automotive applications.

The CY9B110T series - including CY9BF116TBGL-G-K5E1 - was designed specifically for cost-optimized, real-time motor control and embedded automation, emphasizing integrated peripherals (QPRC, LIN, motor timers) and robust operation across wide voltage (2.7–5.5 V) and temperature ranges.

FAQ

What is the maximum operating frequency and how is it achieved?

The CY9BF116TBGL-G-K5E1 achieves up to 144 MHz core operation using its internal Main PLL, which multiplies an external 4–48 MHz crystal or clock source. The Flash accelerator with 16 KB trace buffer enables zero-wait-state execution up to 72 MHz and sustains high-performance access beyond that through prefetch and caching - verified in the Rev. *D datasheet Section 12.4.4.

Does this MCU support hardware-based LIN communication without external transceivers?

Yes - the MCU integrates full LIN 2.1 protocol support in hardware, including programmable break field (13–16 bit), break delimiter (1–4 bit), and automatic checksum generation. However, a physical-layer LIN transceiver (e.g., TLE7259-3GE) is still required for bus-level signaling and fault protection, as confirmed in Section 4.3 of the peripheral manual.

How many independent encoder interfaces does it provide, and what resolution do they support?

The device includes three independent Quadrature Position/Revolution Counters (QPRC), each with a 16-bit position counter and a 16-bit revolution counter. Each accepts AIN/BIN/ZIN signals with fully configurable edge detection polarity and filtering - supporting standard incremental encoders with up to 65,535 counts per revolution plus overflow tracking.

Is the Flash memory protected against unauthorized read or write operations?

Yes - the MCU implements Flash security functions including read-out protection (ROP) and write protection (WP) controlled via dedicated Flash option bytes. These features prevent firmware extraction and accidental overwrite, and are configurable during programming - detailed in Section 12.7 of the datasheet and "FM3 Flash Programming Manual" Document No. 002-04684.