Dual-core architecture for real-time and wireless workloads
The Infineon CY8C6347BZI-BLD53 is a PSoC® 6 BLE microcontroller built around a 32-bit dual-core ARM Cortex-M4 and Cortex-M0+ pair. The M4 core runs at 150 MHz for signal processing and protocol stacks; the M0+ runs at 100 MHz for low-power background tasks and sensor polling. This lets you split the BLE stack onto one core and the application logic onto the other without a software scheduler fighting for cycles.
1 MB Flash, 288 KB SRAM — enough for OTA and complex stacks
Program memory is 1 MB of Flash, backed by 288 KB of SRAM and an additional 32 KB of EEPROM. That SRAM allocation is generous for a wireless MCU at this tier — it leaves room for multiple BLE connection contexts, a large display buffer, or a file system cache without external memory. The EEPROM block is useful for persistent calibration or configuration data that needs byte-level rewrites without wear-leveling overhead.
Peripheral set: Bluetooth, CapSense, USB, and a full complement of serial interfaces
On-chip Bluetooth handles the wireless link; the CapSense block drives touch-sensing electrodes directly, eliminating a separate touch controller. The connectivity list includes I2C, LINbus, QSPI, SPI, UART/USART, and USB, plus I2S for digital audio and an LCD controller. With 78 GPIOs in a 116-ball BGA, you have enough pins to run a small TFT display, a keypad matrix, and several external sensors simultaneously.
The package is a 116-ball WFBGA (5.2 x 6.4 mm body) that requires a standard BGA reflow profile; MSL is not listed in the record, so verify the moisture sensitivity level with the factory before opening the sealed tray.