OXMPCI952 Datasheet, PDF (15/108 Pages) Oxford Semiconductor – Integrated High Performance Dual UARTs, 8-bit Local Bus/Parallel Port. 3.3v PCI/miniPCI interface.

OXFORD SEMICONDUCTOR LTD.
Note 1: I/O Direction key:
P_I
P_O
P_I/O
P_OD
PCI input
PCI output / PCITristates
PCI bi-directional
PCI open drain
3.3v Only
3.3v Only
3.3v Only
3.3v Only
I
I(h)
IU(h)
I/O(h)
Input
Input
Input with internal pull-up
Bi-Directional
LVTTL level
LVTTL level, 5v tolerant
LVTTL level, 5v tolerant
LVTTL level, 5v tolerant
O
O(h)
OD
OD(h)
NC
Output
Output
Open drain
Open drain
No connect
Standard Output
5v tolerant (High Voltage BI-Direct in output mode)
Standard Open-drain Output
5v tolerant (High Voltage BI-Direct in open-drain mode)
G
Ground
V
3.3V power
OXmPCI952
DS-0020 Jun 05
Page 15