ox16pci954 ETC-unknow, ox16pci954 Datasheet - Page 12
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ox16pci954
Manufacturer Part Number
ox16pci954
Description
Integrated Quad Uart Interface
Manufacturer
ETC-unknow
Datasheet
1.OX16PCI954.pdf
(72 pages)
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Note 1: Direction key:
I
IU
O
I/O
OD
NC
Z
Note 2: Power & Ground
There are two GND and two VDD rails internally. One set of rails supply power and ground to output buffers while in switching
state (called AC power) and another rail supply the core logic, input buffers and output buffers in steady-state (called DC rail).
The rails are not connected internally. This precaution reduces the effects of simultaneous switching outputs and undesirable RF
radiation from the chip. Further precaution is taken by segmenting the GND and VDD AC rails to isolate the PCI, Local Bus and
UART pins.
Data Sheet Revision 1.3
OXFORD SEMICONDUCTOR LTD.
Input
Input with internal pull-up
Output
Bi-directional
Open drain
No connect
High impedance
P_I
P_O
P_I/O
P_OD
G
V
PCI input
PCI output
PCI bi-directional
PCI open drain
Ground
5.0V power
OX16PCI954
Page 12