DS_FT313H Datasheet, PDF (46/64 Pages) Future Technology Devices International Ltd. – The FT313H is a Hi-Speed Universal Serial Bus (USB) Host Controller compatible with Universal Serial Bus Specification Rev 2.0 and supports data transfer speeds of up to 480M bit/s.

6.4 Timing
Document No.: FT_000589
FT313H USB2.0 HS Host Controller Datasheet Version 1.1
Clearance No.: FTDI# 318
6.4.1 PIO timing
SRAM PIO timing characteristics (Ambient Temperature = -40°C to +85°C)
Parameter
Description
VCC(I/O)=1.8V VCC(I/O)=2.5V VCC(I/O)=3.3V
Min
Max
Min
Max
Min
Max
Unit
CS_N setup time
Tcs
before WR_N / RD_N
0
-
0
-
0
-
ns
low
Tch
CS_N hold time after
WR_N / RD_N high
0
-
0
-
0
-
ns
Tcp
CS_N pulse width for
read
40
-
40
-
40
-
ns
CS_N pulse width for
write
40
-
40
-
40
-
ns
address setup time
ns
Tasrw
before WR_N / RD_N
0
-
0
-
0
-
low
Address Hold Time
ns
Tahrw
after WR_N/RD_N
0
-
0
-
0
-
LOW
Tap
Address Latch Pulse
Width
ns
Twc
Write Cycle Time
80
-
79
-
78.5
-
ns
Twp
WR_N Pulse Width
40
-
40
-
40
-
ns
Tdh
RD_N High to Output
Hi-Z
4
9
4
7
4
6
ns
WR_N High to Input
Hi-Z
0
-
0
-
0
-
ns
Tdadvh
DATA Setup Time
before DATA Latch
6
-
6
-
6
-
ns
Toe
RD_N Low to DATA
Output Enable
8
-
7
-
6
-
ns
Trp
RD_N Pulse Width
40
-
40
-
40
-
ns
Trc
Read Cycle Time
80
-
79.5
-
79
-
ns
Table 6-10 SRAM PIO timing
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