
Preliminary W78E378/W78C378/W78C374
- 38 -
Package Dimensions, continued
44-pin PLCC
44
40
39
29
28
18
17
7
6
1
L
c
1
b
2
A
H
D
D
e
b
E H
E
y
A
A
1
Seating Plane
D
G
G
E
Notes:
1. Dimension D & E do not include interlead flash.
Symbol
Min.
Nom.
Max.
0.185
Max.
4.70
Nom.
Min.
Dimension in inches
Dimension in mm
y
on final visual inspection spec.
4. General appearance spec. should be based
3. Controlling dimension: Inches
protrusion/intrusion.
2. Dimension b1 does not include dambar
0.020
0.145
0.026
0.016
0.008
0.648
0.648
0.590
0.590
0.680
0.680
0.090
0.150
0.028
0.018
0.010
0.653
0.653
0.610
0.610
0.690
0.690
0.100
0.050
BSC
0.155
0.032
0.022
0.014
0.658
0.658
0.630
0.630
0.700
0.700
0.110
0.004
0.51
3.68
0.66
0.41
0.20
16.46
16.46
14.99
14.99
17.27
17.27
2.29
3.81
0.71
0.46
0.25
16.59
16.59
15.49
15.49
17.53
17.53
2.54
1.27
3.94
0.81
0.56
0.36
16.71
16.71
16.00
16.00
17.78
17.78
2.79
0.10
BSC
A
A
A
b
1
b
c
D
E
e
G
D
H
E
L
1
2
H
D
G
E
θ
Headquarters
No. 4, Creation Rd. III,
Science-Based Industrial Park,
Hsinchu, Taiwan
TEL: 886-3-5770066
FAX: 886-3-5792766
http://www.winbond.com.tw/
Voice & Fax-on-demand: 886-2-27197006
Taipei Office
11F, No. 115, Sec. 3, Min-Sheng East Rd.,
Taipei, Taiwan
TEL: 886-2-27190505
FAX: 886-2-27197502
Winbond Electronics (H.K.) Ltd.
Rm. 803, World Trade Square, Tower II,
123 Hoi Bun Rd., Kwun Tong,
Kowloon, Hong Kong
TEL: 852-27513100
FAX: 852-27552064
Winbond Electronics North America Corp.
Winbond Memory Lab.
Winbond Microelectronics Corp.
Winbond Systems Lab.
2727 N. First Street, San Jose,
CA 95134, U.S.A.
TEL: 408-9436666
FAX: 408-5441798
Note: All data and specifications are subject to change without notice.