Kinetis K40: 72MHz Cortex-M4 MCU, 160KB Flash, 32KB SRAM, Full-Speed USB, Segment LCD, 64-LQFP
Freescale
Freescale - MK40DX128VLK7
$6.07
Freescale - MK40DX128VLL7
$11.97 - $8.74
Freescale - MK40DX128VMC7
$5.53
Freescale - MK40DX256VLH7
$6.56
Freescale - MK40DX256VLK7
$9.70
Freescale - MK40DX256VLL7
$16.76