FT240X USB 8-BIT FIFO IC Datasheet
Version 1.3
Document No.: FT_000626 Clearance No.: FTDI# 259
Table of Contents
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Typical Applications...................................................................... 2
1.1 Driver Support.................................................................................... 2
1.2 Part Numbers...................................................................................... 2
1.3 USB Compliant.................................................................................... 3
FT240X Block Diagram ................................................................. 4
Device Pin Out and Signal Description.......................................... 7
3.1 24-LD SSOP Package .......................................................................... 7
3.2 SSOP Package Pin Out Description...................................................... 7
3.3 QFN-24 Package ................................................................................. 9
3.4 QFN-24 Package Signal Description.................................................... 9
3.5 CBUS Signal Options ......................................................................... 11
3.6 FT240X FIFO READ Timing Diagrams................................................ 12
3.7 FT240X FIFO WRITE Timing Diagrams.............................................. 13
Function Description................................................................... 14
4.1 Key Features..................................................................................... 14
4.2 Functional Block Descriptions........................................................... 15
Devices Characteristics and Ratings........................................... 16
5.1 Absolute Maximum Ratings............................................................... 16
5.2 ESD and Latch-up Specifications....................................................... 16
5.3 DC Characteristics............................................................................. 17
5.4 MTP Memory Reliability Characteristics ............................................ 21
5.5 Internal Clock Characteristics........................................................... 21
USB Power Configurations.......................................................... 22
6.1 USB Bus Powered Configuration ...................................................... 22
6.2 Self Powered Configuration .............................................................. 23
6.3 USB Bus Powered with Power Switching Configuration .................... 24
Application Examples ................................................................. 25
7.1 USB to MCU FIFO Interface............................................................... 25
7.2 Battery Charge Detection.................................................................. 26
Internal MTP Memory Configuration........................................... 28
8.1 Default Values .................................................................................. 28
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8.2 Methods of Programming the MTP Memory....................................... 29
8.2.1 Programming the MTP memory over USB...................................................................... 29
8.3 Memory Map ..................................................................................... 30
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Package Parameters................................................................... 31
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