CY8C4244AZI-443
CY8C4244AZI-443 - 48MHz Cortex-M0 MCU | Infineon
The Infineon CY8C4244AZI-443 is a 48 MHz Arm Cortex-M0 PSoC 4 series microcontroller with 16 kByte of flash memory, 4 kByte of SRAM, and a 12-bit ADC, offered in a TQFP package. The device combines a general-purpose 32-bit microcontroller core with programmable mixed-signal and digital peripherals for embedded control applications. Its 16 kByte flash provides on-chip program storage, while 4 kByte of SRAM supports working memory for real-time control, data acquisition, and human-interface functions.
A microcontroller is a semiconductor device that integrates a processor core, memory, and peripherals into one compact component. The PSoC 4 family belongs to the broader embedded-processing hierarchy of Cortex-M microcontrollers, mixed-signal controllers, and programmable system-on-chip devices. Compared with a fixed-function logic controller, the CY8C4244AZI-443 allows firmware to configure digital routing, analog conversion, and communication behavior, making it suitable for compact embedded systems that need more adaptability than simple discrete control circuits.
The headline features are a 48 MHz Arm Cortex-M0 core, 16 kByte flash, 4 kByte SRAM, and a 12-bit ADC. The Arm Cortex-M0 architecture provides a 32-bit instruction set while retaining a simple, low-power embedded design profile. The 12-bit ADC supports analog measurement tasks such as sensing voltage, temperature, and resistive sensors through external conditioning networks. The manufacturer classifies the device as a PSoC 4200-series member with Arm Cortex-M0/M0+ capability and programmable system-on-chip resources.
This MCU is intended for industrial control, sensor-interface, communication, and embedded user-interface designs. Its combination of flash, SRAM, and ADC resources allows a single device to acquire analog measurements, run control algorithms, and manage digital peripherals without requiring a separate ADC. The 48 MHz clock supports time-sensitive event handling, while the programmable digital fabric can route signals to timers, serial interfaces, and other peripheral blocks.
Typical uses include condition-monitoring equipment, compact industrial controllers, keypad and capacitive-touch interfaces, building automation modules, and low-cost embedded control boards. Designers should allocate the small 4 kByte SRAM carefully, place analog inputs away from fast-switching digital traces, and follow the manufacturer pin-description and layout guidance when assigning package leads.
For new PCB designs, verify the exact package drawing and pin assignments before layout because the manufacturer product summary and distributor listing describe the package differently. Firmware selection should also account for the 16 kByte flash limit, peripheral resource allocation, clock configuration, and the 12-bit ADC conversion requirements of the intended control loop.
This page consolidates the confirmed device parameters, package considerations, sourcing paths, and engineering-oriented guidance into a practical reference for designers evaluating the CY8C4244AZI-443 for embedded control and mixed-signal applications.
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