XR17D158IV-F Datasheet, PDF (7/73 Pages) Exar Corporation – UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART

xr
REV. 1.2.2
PIN DESCRIPTIONS
XR17D158
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
NAME
VIO
GND
PIN #
4, 19, 34, 45,
137
5,20,35,46,63,
89,136
TYPE
DESCRIPTION
PCI Bus I/O Power supply - 3.3V or 5V, detected by the auto-sense circuitry
of the XR17D158. This power supply determines the VOH level of the PCI
bus interface outputs.
(PCI 2.3 signalling compliant at both 3.3V and 5V operation, suitable for uni-
versal form factor add-in card application)
Power supply common, ground.
NOTE: Pin type: I=Input, O=Output, IO= Input/output, OD=Output Open Drain.
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