CY8C4045AZI-S413

Product Overview

The Infineon Technologies CY8C4045AZI-S413 is a PSOC 4 CY8C4000S 32-bit microcontroller built around an ARM Cortex-M0+ core and packaged in a 48-TQFP (7x7) surface-mount package. It provides 32KB (32K x 8) of FLASH program memory and 4K x 8 of RAM, with 36 I/O pins for external signal routing. The device operates at 48MHz and accepts a supply voltage range of 1.71V to 5.5V for embedded control designs. An internal oscillator is included, while communication options span I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, and UART/USART. Integrated peripherals include brown-out detect/reset, CapSense, LCD, LVD, POR, PWM, and WDT, along with one 10-bit A/D converter.

Key Features

• PSOC 4 CY8C4000S microcontroller with an ARM Cortex-M0+ 32-bit core operating at 48MHz
• 32KB (32K x 8) FLASH program memory and 4K x 8 RAM
• 36 I/O pins in a 48-TQFP (7x7) surface-mount package
• 1.71V to 5.5V supply voltage range
• I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, and UART/USART connectivity
• Brown-out detect/reset, CapSense, LCD, LVD, POR, PWM, and WDT peripherals
• One 10-bit A/D converter and internal oscillator
• Operating temperature range of -40°C to 85°C (TA)

Applications

• Capacitive touch user interfaces for appliances, instruments, and control panels
• Embedded displays driven by the integrated LCD peripheral
• Sensor and actuator interfaces using I2C, SPI, SSP, or UART/USART communication
• Smart-card or Microwire peripheral connections in compact embedded systems
• LINbus or IrDA communication links in embedded control systems
• Control subsystems using PWM outputs and watchdog timing

Design & Procurement Notes

Designers should confirm that 36 I/O pins and the 48-TQFP (7x7) footprint fit the board layout, and that the 1.71V to 5.5V supply range matches the system power architecture. The 32KB (32K x 8) FLASH and 4K x 8 RAM sizes set practical limits for firmware and data buffers, so application code, communication stacks, and peripheral configurations should be sized accordingly. The available interfaces include I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, and UART/USART, allowing selection of the most direct link to displays, sensors, smart-card modules, or serial devices. Because the device includes CapSense, LCD, PWM, brown-out detect/reset, LVD, POR, and WDT peripherals, system designers can evaluate whether these integrated functions are sufficient for touch sensing, display driving, timing, and supervisory tasks. For procurement and design, match the 48-TQFP (7x7) surface-mount package and -40°C to 85°C (TA) operating range to the target assembly and environmental profile.