XR17D154IV Exar Corporation, XR17D154IV Datasheet - Page 63

• Manufacturer Part Number: XR17D154IV
• Description: Universal QUART W/ PCI Bus Interface.
• Manufacturer: Exar Corporation

Specifications of XR17D154IV

• Features: *
• Number Of Channels: 4, QUART
• Fifo's: 64 Byte
• Protocol: RS485
• Voltage - Supply: 3.3V, 5V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS Compliant

xr
REV. 1.2.2
F
IGURE
25. 3.3V PCI B
Tri-State
Output
Output
Bused
Signal
Bused
Signal
Delay
Input
CLK
1.44 ns
(max)
US
C
(2-11 ns)
(2 ns min)
LOCK
Tvalid
Ton
(DC
(28 ns Max)
11 ns
(min)
Toff
TO
33MH
Z
Tcyc
)
1.44 ns
(max)
63
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
(7 ns min)
11 ns
(min)
Tsetup
Inputs Valid
Thold
(0 ns)
(minimum)
0.4Vcc p-to-p
0.6 Vcc
0.2Vcc
pci_clk
XR17D154