xr20m1280 Exar Corporation, xr20m1280 Datasheet - Page 62

• Manufacturer Part Number: xr20m1280
• Description: I2c/spi Uart With 128-byte Fifo And Integrated Level Shifters
• Manufacturer: Exar Corporation

PACKAGE DIMENSIONS (40 PIN QFN - 6 X 6 X 0.9
XR20M1280
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
Note: The control dimension is in millimeter.
SYMBOL
D2
A1
A3
D
A
b
e
L
k
0.031
0.000
0.006
0.232
0.189
0.007
0.014
0.008
MIN
0.0197 BSC
INCHES
PRELIMINARY
0.039
0.002
0.010
0.240
0.197
0.012
0.018
MAX
62
-
mm
0.80
0.00
0.15
5.90
4.80
0.18
0.35
0.20
MIN
MILLIMETERS
)
0.50 BSC
Note: the actual center pad is
metallic and the size (D2) is
device-dependent with a
typical tolerance of 0.3mm
MAX
1.00
0.05
0.25
6.10
5.00
0.30
0.45
-
REV. P1.1.1