HT68FB550

I/O Flash USB MCU with SPI HT68FB540/HT68FB550/HT68FB560 Revision: V1.70 Date: November 19, 2019 HT68FB540/HT68FB550/HT68FB560 I/O Flash USB MCU with SPI Table of Contents Features............................................................................................................. 6 CPU Features.......................................................................................................................... 6 Peripheral Features.................................................................................................................. 6 General Description.......................................................................................... 7 Selection Table.................................................................................................. 8 Block Diagram................................................................................................... 8 Pin Assignment................................................................................................. 9 Pin Description............................................................................................... 12 Absolute Maximum Ratings........................................................................... 18 D.C. Characteristics........................................................................................ 18 A.C. Characteristics........................................................................................ 20 LVD & LVR Electrical Characteristic...