w78e54 Winbond Electronics Corp America, w78e54 Datasheet - Page 22

• Manufacturer Part Number: w78e54
• Description: 8-bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

Package Dimensions, continued
44-pin PLCC
44-pin QFP
11
1
Seating Plane
L
Seating Plane
17
7
12
44
18
6
See Detail F
e
H
D
e
D
G
H
D
1
b
D
D
44
22
34
b
b
1
y
40
28
33
E
A
A
2
1
H
29
39
E
A
A
E
A
2
1
A
H
E
y
L
L
c
1
- 22 -
c
G
Detail F
E
Notes:
Notes:
Symbol
1. Dimension D & E do not include interlead
2. Dimension b1 does not include dambar
3. Controlling dimension: Inches
4. General appearance spec. should be based
Symbol
1. Dimension D & E do not include interlead
2. Dimension b does not include dambar
3. Controlling dimension: Millimeter
4. General appearance spec. should be based
A
A
b
A
b
c
D
E
G
G
H
protrusion/intrusion.
e
H
L
flash.
on final visual inspection spec.
y
A
H
H
A
A
b
c
D
E
L
L
y
flash.
protrusion/intrusion.
on final visual inspection spec.
e
1
1
2
D
E
D
E
D
E
1
1
2
0.020
0.145
0.026
0.016
0.008
0.648
0.648
0.590
0.590
0.680
0.680
0.090
Dimension in inches
Min.
0.002
0.075
0.01
0.004
0.390
0.390
0.025
0.510
0.051
0.510
0.025
Dimension in inch
Min. Nom. Max.
0.050
---
0
0.150
0.028
0.018
0.010
0.653
0.653
0.610
0.610
0.690
0.690
0.100
Nom.
0.081
0.014
0.006
0.394
0.394
0.031
0.520
0.520
0.031
0.063
0.01
BSC
---
0.185
0.155
0.032
0.022
0.014
0.658
0.658
0.630
0.630
0.700
0.700
0.110
0.004
Max.
0.087
0.018
0.010
0.398
0.530
0.075
0.398
0.036
0.530
0.037
0.003
0.02
---
7
0.508
0.406
0.203
16.46
16.46
14.99
14.99
17.27
17.27
2.296
3.683
Dimension in mm
0.66
Min.
1.27
12.95
1.295
Dimension in mm
0.05
1.90
0.25
0.101
9.9
0.635
12.95
9.9
Min.
0.65
W78E54
---
0
15.49
15.49
0.457
16.59
16.59
17.53
17.53
0.711
0.254
Nom.
3.81
2.54
BSC
Nom.
10.00
2.05
10.00
0.25
0.35
0.152
13.2
13.2
0.80
1.6
0.8
3.937
16.71
16.71
16.00
16.00
17.78
17.78
2.794
---
4.699
0.813
0.559
0.356
Max.
0.10
13.45
2.20
0.45
13.45
1.905
Max.
0.254
0.952
0.5
10.1
10.1
0.95
0.08
7
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