56-QFN package and board integration
The CY7C64215-56LTXCT comes in a 56-VFQFN Exposed Pad package (supplier device package 56-QFN-EP, 8x8 mm). Store the reels dry: the QFN's moisture sensitivity level (MSL) is not stated in this record, but standard practice for this package class is MSL 3, so a dry-bake before reflow is prudent if the seal is broken.
USB controller with 16 kB flash and 50 I/O
Built around the M8C core, this part is a dedicated USB microcontroller with a full-speed (12 Mbps) USB interface and a separate I²C bus for local sensor or peripheral communication. The 16 kB on-chip FLASH holds the application firmware and USB descriptors; the 1K x 8 RAM serves as endpoint buffer and scratchpad. Fifty general-purpose I/O lines give enough headroom for a parallel LCD, keypad matrix, and status LEDs alongside the USB and I²C buses.
Active production, ROHS3, and commercial temperature range
This suits indoor, temperature-controlled environments (desktop peripherals, USB dongles, instrumentation front-ends) but not extended industrial or automotive ambient. For a BOM that sees 85 °C or higher, a different temperature grade is needed.