ox16c954 ETC-unknow, ox16c954 Datasheet - Page 14
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ox16c954
Manufacturer Part Number
ox16c954
Description
High Performance Quad Uart With 128-byte Fifos Intel / Motorola Bus Interface
Manufacturer
ETC-unknow
Datasheet
1.OX16C954.pdf
(54 pages)
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Direction key:
I,
IU
ID
O
I/O
OD
Note: All unused signal input pins should be tied to VDD or GND as applicable and must not be left floating. For high speed operation (XTAL >
Data Sheet Revision 1.0
OXFORD SEMICONDUCTOR LTD.
TQFP
Power, Ground, No Connects
16, 36,
56, 76
25, 65
10, 30,
71
10MHz), card designers are recommended to follow the guidelines for high-speed digital design such as maintaining PCB tracks as short
as possible, using a multi-layer PCB with separate power and ground planes, and using good-quality de-coupling capacitors.
under normal operation
Attention should be given to high frequency decoupling of power and ground pins due to the high frequency internal switching that occurs
Input
Input with pull-up
Input with pull-down
Output
Bi-directional
Open drain
PLCC
6, 23,
40, 57
13, 47
-
Dir
1
Name
GND
VDD
NC
Description
Ground pin.
All GND pins must be tied to ground.
Power pin.
PLCC : All VDD pins must be tied to 5 Volts.
TQFP : All VDD pins must be tied to 5v or 3.3v. (Note that the VDETECT
pin must be set according to the selected voltage environment).
No Connects
These pins are not connected to any pads within the device, and can be
left open.
Table 2: Pin Descriptions
OX16C954 rev B
Page 14