W78C438C
Publication Release Date: March 10, 2010
- 19 - Revision A7
9. PACKAGE DIMENSIONS
9.1 100-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
W78C438C
- 20 -
10. REVISION HISTORY
VERSION DATE PAGE DESCRIPTION
A1 July, 1998 - Initial issued
A2 June, 2004 2 Revise part number in the item of packages
A3 April 19, 2005 19 Add Important Notice
A4 July 27, 2005 2 Add Lead free (RoHS) part number
A5 October 3, 2006 Remove block diagram
A6 December 4, 2006 2 Remove all Leaded package parts
A7 March 10, 2010 2
Remove the package parts of
Lead Free (RoHS) PLCC
84 W78C438C40PL
Important Notice
Nuvoton Products are neither intended nor warranted for usage in systems or equipment, any
malfunction or failure of which may cause loss of human life, bodily injury or severe property
damage. Such applications are deemed, “Insecure Usage”.
Insecure usage includes, but is not limited to: equipment for surgical implementation, atomic
energy control instruments, airplane or spaceship instruments, the control or operation of
dynamic, brake or safety systems designed for vehicular use, traffic signal instruments, all
types of safety devices, and other applications intended to support or sustain life.
All Insecure Usage shall be made at customer’s risk, and in the event that third parties lay
claims to Nuvoton as a result of customer’s Insecure Usage, customer shall indemnify the
damages and liabilities thus incurred by Nuvoton.

W78C438C40FL

Mfr. #:
Manufacturer:
Description:
IC MCU 8BIT ROMLESS 100QFP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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