XR17D154 Exar Corporation, XR17D154 Datasheet - Page 58

• Manufacturer Part Number: XR17D154
• Description: Four-channel Pci-bus Uart
• Manufacturer: Exar Corporation

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PRELIMINARY
F
IGURE
23. 3.3V PCI B
Tri-State
Output
Output
Bused
Signal
Bused
Signal
Delay
Input
CLK
1.44 ns
(max)
US
C
(2-11 ns)
LOCK
Tvalid
(2 ns min)
Ton
(DC
(28 ns max)
11 ns
(min)
Toff
TO
33MH
Z
)
1.44 ns
(max)
58
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
(7 ns min)
11 ns
(min)
Tsetup
Inputs Valid
(0 ns)
Thold
0.4Vcc p-to-p
(minimum)
0.2 Vcc
0.6 Vcc
pci_clk
XR17D154
REV. P1.0.0