UM245R FTDI, Future Technology Devices International Ltd, UM245R Datasheet - Page 12

• Manufacturer Part Number: UM245R
• Description: MODULE USB-PAR FIFO TTL 24-DIP
• Manufacturer: FTDI, Future Technology Devices International Ltd

Specifications of UM245R

• Main Purpose: Interface, USB 2.0 to Parallel FIFO Bridge
• Embedded: No
• Utilized Ic / Part: FT245R
• Primary Attributes: 300kBps to 1MBps USB to parallel FIFO via 4-Wire Interface
• Secondary Attributes: Royalty-Free Drivers
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 768-1020

4.5 FT245 FIFO Control Interface Write Cycle Timing Diagrams
Figure 4.3 FIFO Write Cycle
Time
T7
T8
T9
T10
T11
T12
Table 4.5 FIFO Write Cycle Timings
© Copyright 2009 Future Technology Devices International Ltd
Description
WR Active Pulse Width
WR to RD Pre-Charge Time
Data Setup Time before WR Inactive
Data Hold Time from RD Inactive
WR Inactive to TXE#
TXE# Inactive After WR Cycle
UM245R USB - Parallel FIFO Development Module Datasheet Version 1.04
Min
50
50
20
0
0
80
Max
25
Document Reference No.: FT_000202
Unit
ns
ns
ns
ns
ns
ns
Clearance No.: FTDI# 124
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