Kinetis K20: 50MHz Cortex-M4 Performance MCU, 64KB Flash, 16KB SRAM, Full-Speed USB, 48-QFN
Freescale
Freescale - MK20DN128VFM5
* $4.29 - $6.14
Freescale - MK20DN128VFT5
$4.57
Freescale - MK20DN128VLF5
$4.09 - $6.15
Freescale - MK20DN128VLH5
$4.38
Freescale - MK20DN128VMP5
$4.93 - $6.82
Freescale - MK20DN32VFM5
$2.58