Rainbow Electronics W27L520 - Manual (Page 15)

Preliminary W27L520
Publication Release Date: 4/26/2000
- 15 - Revision A2
PACKAGE DIMENSIONS
20-pin TSSOP
Dimension in mm Dimension in Inches
Min. Nom. Max.
Symbol
A
b
c
θ
A
e
0.002
0.09
0.043
0.006
0.18
0.256 BSC
1.10
0.15
L 0.50 0.70 0.028 0.020
E
E 4.30 4.48 0.169 0.176
0.003 0.007
0.65 BSC
0.05
Min. Nom. Max.
E E
b
e
D
A
A
c L
θ
1
1
1
1
D 6.40 6.60 0.260 0.252
6.25 6.50 0.256 0.246
0.18 0.30 0.012 0.007
0 8 0 8
20-pin SOP
Dimension in mm Dimension in Inches
Min. Nom. Max.
Symbol
A
b
c
θ
A
e
0.003
0.229
0.105
0.012
0.330
1.27 BSC
2.67
0.305
L 0.381 0.889 0.035 0.015
E
E 7.39 7.60 0.291 0.299
0.009 0.013
0.50 BSC
0.076
Min. Nom. Max.
E E
b
e
D
A
A
c
L
θ
1
1
1
1
D 12.6 13.0 0.513 0.497
9.98 10.7 0.420 0.393
0.330 0.508 0.020 0.013
0 8 0 8
0.092 2.34