K4H641638N Datasheet, PDF (9/10 Pages) Samsung semiconductor – DDR SDRAM Product Guide

General Information
60Ball FBGA (For 512Mb)
10.00 ± 0.10
#A1
Top view
DDR SDRAM
(Datum A)
(Datum B)
A
B
C
D
E
F
G
H
J
K
L
M
10.00 ± 0.10
0.80 x8 = 6.40
3.20
1.60
0.80
987654321
A
#A1 MARK(option)
B
1.20 MAX
4-CORNER MARK(option)
60-∅0.45 ± 0.05
0.20 M A B
(0.90)
(0.90)
(1.80)
WINDOW MOLD AREA
Bottom view
December 2007