Datasheet

ADSP-21371/ADSP-21375
Rev. D | Page 55 of 56 | April 2013
PACKAGE DIMENSIONS
The processors are available in a 208-lead RoHS compliant
LQFP_EP package.
Figure 42. 208-Lead Low Profile Quad Flat Package, Exposed Pad [LQFP_EP]
(SW-208-1)
Dimensions shown in millimeters
COMPLIANT TO JEDEC STANDARDS MS-026-BJB-HD
*
NOTE:
THE EXPOSED PAD IS REQUIRED TO BE ELECTRICALLY AND THERMALLY CONNECTED TO GND.
THIS SHOULD BE IMPLEMENTED BY SOLDERING THE EXPOSED PAD TO A GND PCB LAND THAT IS THE SAME SIZE
AS THE EXPOSED PAD. THE GND PCB LAND SHOULD BE ROBUSTLY CONNECTED TO THE GND PLANE IN THE PCB
WITH AN ARRAY OF THERMAL VIAS FOR BEST PERFORMANCE.
0.15
0.10
0.05
0.08
COPLANARITY
0.20
0.15
0.09
1.45
1.40
1.35
7°
3.5°
0°
VIEW A
ROTATED 90° CCW
0.27
0.22
0.17
0.75
0.60
0.45
0.50
BSC
LEAD PITCH
28.10
28.00 SQ
27.90
30.20
30.00 SQ
29.80
TOP VIEW
(PINS DOWN)
BOTTOM VIEW
(PINS UP)
*
EXPOSED
PAD
1
52
53
52
53
105
104
105
104
156
208
1
208
157
156
157
PIN 1
1.60 MAX
1.00 REF
SEATING
PLANE
VIEW A
8.890
REF
8.712
REF
25.50
REF