8-bit 50MHz MCU, 4KB Flash, 1KB RAM, QFN-20
8-bit 50MHz MCU, 16KB Flash, 1KB RAM, 21 I/O, QFN
8-Bit 50MHz FLASH MCU, 1.25KB RAM, QFN-28
32KB 8051 Microcontroller, 25MHz, 5V, QFN-32
32-Pin Quad Flat No-Lead Microcontroller, 8-Bit, 48 MHz, 65K Words ROM
