UM245R FTDI, Future Technology Devices International Ltd, UM245R Datasheet - Page 12
![MODULE USB-PAR FIFO TTL 24-DIP](/photos/9/3/90380/um245r_sml.jpg)
UM245R
Manufacturer Part Number
UM245R
Description
MODULE USB-PAR FIFO TTL 24-DIP
Manufacturer
FTDI, Future Technology Devices International Ltd
Datasheet
1.UM245R.pdf
(27 pages)
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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