xr16v564 Exar Corporation, xr16v564 Datasheet - Page 8

• Manufacturer Part Number: xr16v564
• Description: 2.25v To 3.6v Quad Uart With 32-byte Fifo
• Manufacturer: Exar Corporation

XR16V564/564D
2.25V TO 3.6V QUAD UART WITH 32-BYTE FIFO
Pin Description
Pin type: I=Input, O=Output, I/O= Input/Output, OD=Output Open Drain.
N
GND
N.C.
AME
48-QFN
Center
P
Pad
IN
-
#
64-LQFP
P
N/A
IN
-
#
68-PLCC
P
N/A
IN
-
#
80-LQFP
1, 2, 20,
21, 22,
27, 40,
41, 42,
60, 61,
62, 80
P
N/A
IN
#
T
8
Pwr The center pad on the backside of the QFN package is
YPE
metallic and should be connected to GND on the PCB.
The thermal pad size on the PCB should be the
approximate size of this center pad and should be sol-
der mask defined. The solder mask opening should be
at least 0.0025" inwards from the edge of the PCB
thermal pad.
No Connection. These pins are not used in either the
Intel or Motorola bus modes.
D
ESCRIPTION
REV. 1.0.1