W78C438C
- 16 -
Package Dimensions, continued
100-pin QFP
51
50
31
30
1
80
81
100
1
A
H
D
D
e
b
E H
E
y
A
A
Seating Plane
L
L
1
See Detail F
Detail F
c
1. Dimension D & E do not include interlead
flash.
2. Dimension b does not include dambar
protrusion/intrusion.
3. Controlling dimension: Millimeters
4. General appearance spec. should be based
on final visual inspection spec.
0.102
0
12
0
0.004
2.413
1.397
19.10
1.194
18.80
0.991
18.49
0.095
0.055
0.988
0.752
0.047
0.976
0.740
0.039
0.964
0.728
0.65
20.13
14.13
0.254
0.407
2.972
3.30
20.00
14.00
2.845
19.87
13.87
0.101
0.254
2.718
0.10
0.792
0.556
0.010
0.016
0.117
0.130
0.787
0.551
0.112
0.026
0.782
0.546
0.004
0.010
0.107
0.004
Notes:
Symbol
Min.
Nom.
Max.
Max.
Nom.
Min.
Dimension in inches
Dimension in mm
A
b
c
D
e
H
D
H
E
L
y
A
A
L
1
1
2
E
0.012
0.006
0.152
0.305
24.49
24.80
25.10
12
0.020
0.087
0.032
0.103
0.498
0.802
2.21
2.616
2
θ
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.
