Infineon Technologies CY8C4247BZI-L479T

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Product attributes Property Value
Manufacturer Infineon Technologies
Product Series PSOC™ 4 CY8C42xx-L
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor ARM® Cortex®-M0
Core Size 32-Bit Single-Core
Speed 48MHz
Connectivity I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART, USB
Peripherals Brown-out Detect/Reset, Cap Sense, DMA, LVD, POR, PWM, SmartSense, WDT
Number of I/O 98
Program Memory Size 128KB (128K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 16K x 8
Voltage - Supply (Vcc/Vdd) 1.71V ~ 5.5V
Data Converters A/D 16x12b SAR; D/A 4x8b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 124-VFBGA (9x9)
Package / Case 124-VFBGA
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Infineon CY8C4247BZI-L479T is a PSoC 4 series microcontroller featuring an ARM Cortex-M0 core at 48MHz. It offers 128KB of flash and 16KB of SRAM, along with industry-leading Cap Sense capacitive sensing technology. Operating from 1.71V to 5.5V, it is designed for low-power and portable applications. The 124-VFBGA package makes it ideal for space-constrained designs requiring touch interfaces and mixed-signal processing.

  • Integrated Cap Sense: Hardware-accelerated capacitive sensing eliminates the need for external touch controllers, reducing BOM cost.
  • Wide Voltage Range: Supports 1.71V to 5.5V, enabling direct battery connection or 5V USB power.
  • Low Power Consumption: Optimized for battery-powered devices with multiple low-power modes and fast wake-up.
  • Compact Package: 124-VFBGA saves PCB space for miniaturized consumer electronics.

Touch-Sensitive Control Panels

The integrated Cap Sense and SmartSense technology provides robust, noise-immune capacitive touch sensing for user interfaces in home appliances and industrial equipment.

Battery-Powered Wearables

With a low operating voltage of 1.71V and low-power modes, this MCU extends battery life in fitness trackers and smartwatches while handling sensor data via DMA.

Smart Home Sensors

The 48MHz Cortex-M0 core efficiently processes data from temperature, humidity, and motion sensors, while the LVD and POR ensure reliable wake-up and shutdown sequences.

Portable Medical Devices

The 5.5V supply capability allows direct interfacing with analog front-ends, and the 128KB flash provides ample space for calibration data and firmware updates.

LED Lighting Control

The PWM module enables precise dimming and color control in smart lighting systems, while the WDT ensures fail-safe operation in always-on installations.

Consumer Electronics Remote Controls

Cap Sense buttons replace mechanical switches, improving durability and design aesthetics, while the small VFBGA package fits into slim enclosures.

Q: What is the core processor of the CY8C4247BZI-L479T?
A: It is based on the ARM Cortex-M0 core running at 48MHz.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V, making it suitable for battery-powered and 5V systems.
Q: Does it support capacitive sensing?
A: Yes, it includes Cap Sense and SmartSense technology for touch and proximity sensing applications.
Q: What is the package size?
A: It comes in a compact 124-VFBGA package.
Base Product Number : CY8C4247BZI-L479
124-VFBGA 128KB Flash 32-bit MCU 48MHz ARM Cortex-M0 Cap Sense CY8C4247BZI-L479T Infineon PSoC 4 SmartSense Touch Sensing Wearables
Q: What is the core processor of the CY8C4247BZI-L479T?
A: It is based on the ARM Cortex-M0 core running at 48MHz.
Q: What is the supply voltage range?
A: It operates from 1.71V to 5.5V, making it suitable for battery-powered and 5V systems.
Q: Does it support capacitive sensing?
A: Yes, it includes Cap Sense and SmartSense technology for touch and proximity sensing applications.
Q: What is the package size?
A: It comes in a compact 124-VFBGA package.