English
Language : 

W78C438C Datasheet, PDF (16/16 Pages) Winbond – 8-BIT MICROCONTROLLER
Package Dimensions, continued
100-pin QFP
100
1
HD
D
81
80
E HE
30
31
51
e
b
50
See Detail F
Seating Plane
A2 A
A1
y
c
θ
L
L1
Detail F
W78C438C
Symbol Dimension in inches
Dimension in mm
Min. Nom. Max. Min. Nom. Max.
A
0.130
3.30
A1
0.004
0.10
A2
0.107 0.112 0.117 2.718 2.845 2.972
b
0.010 0.012 0.016 0.254 0.305 0.407
c
0.004 0.006 0.010 0.101 0.152 0.254
D
0.546 0.551 0.556 13.87 14.00 14.13
E
0.782 0.787 0.792 19.87 20.00 20.13
e
0.020 0.026 0.032 0.498 0.65 0.802
H D 0.728 0.740 0.752 18.49 18.80 19.10
HE
0.964 0.976 0.988 24.49 24.80 25.10
L
0.039 0.047 0.055 0.991 1.194 1.397
L1
0.087 0.095 0.103 2.21 2.413 2.616
y
0.004
0.102
θ
0
12
0
12
Notes:
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.
Headquarters
Winbond Electronics (H.K.) Ltd.
No. 4, Creation Rd. III,
Science-Based Industrial Park,
Hsinchu, Taiwan
TEL: 886-3-5770066
FAX: 886-3-5792766
Rm. 803, World Trade Square, Tower II,
123 Hoi Bun Rd., Kwun Tong,
Kowloon, Hong Kong
TEL: 852-27513100
FAX: 852-27552064
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 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.
- 16 -