xr16c854iv Exar Corporation, xr16c854iv Datasheet - Page 8

• Manufacturer Part Number: xr16c854iv
• Description: Quad Uart With Rx/tx Fifo Counters And 128-byte Fifo
• Manufacturer: Exar Corporation

Pin Description
XR16C854/854D
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
Pin type: I=Input, O=Output, I/O= Input/output, OD=Output Open Drain.
Factory Test Mode
If the IOR#, IOW# and CS# pins are all asserted (at a logic 0) simultaneously, the 854 will enter a Factory Test
Mode. The 854 is not operational in this mode and will exit this mode only upon a power cycle.
N
N.C.
AME
64-LQFP
P
IN
-
#
68-PLCC
P
IN
-
#
1, 2, 3, 4,
100-QFP
26, 27,
28, 29,
30, 51,
52, 53,
54, 55,
77, 78,
79, 80
P
IN
#
T
YPE
No Connection. These pins are not used in either the Intel or
Motorola bus modes.
8
D
ESCRIPTION
xr
REV. 3.0.1