w78l812a Winbond Electronics Corp America, w78l812a Datasheet - Page 29

• Manufacturer Part Number: w78l812a
• Description: 8-bit Mcu Series 80c51-based
• Manufacturer: Winbond Electronics Corp America

12. PACKAGE DIMENSIONS
12.1 40-pin DIP
12.2 44-pin PLCC
E
1
A
L
A
2
40
1
S
L
Seating Plane
17
θ
7
18
6
e
B
B
1
G
H
D
1
D
D
D
44
b
b
e
1
1
40
28
39
29
A
A
E
2
1
A
H
E
21
20
y
A
1
Base Plane
Seating Plane
- 29 -
c
a
G
E
e
E
A
Publication Release Date: November 6, 2006
W78LE812/W78L812A
c
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
A
A
G
A
b
b
c
D
E
G
H
H
L
y
protrusion/intrusion.
e
flash.
on final visual inspection spec.
1
2
1
Notes:
D
E
D
E
Symbol
1. Dimension D Max. & S include mold flash or
2. Dimension E1 does not include interlead flash.
3. Dimension D & E1 include mold mismatch and
4. Dimension B1 does not include dambar
5. Controlling dimension: Inches.
6. General appearance spec. should be based on
A
A
B
D
E
e
e
A
B
c
E
L
a
S
tie bar burrs.
are determined at the mold parting line.
protrusion/intrusion.
final visual inspection spec.
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 inch Dimension in mm
1
A
Min. Nom. Max.
1
2
1
1
0.050 BSC
Dimension in inch Dimension in mm
0.010
0.150
0.016
0.048
0.008
0.590
0.540
0.090
0.120
0.150
0.028
0.018
0.010
0.653
0.653
0.610
0.610
0.690
0.690
0.100
0.630
Min. Nom. Max.
0
0.050
0.010
2.055
0.600
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
0.155
0.018
0.545
0.100
0.130
0.650
16.46
16.46
14.99
14.99
17.27
17.27
0.508
3.683
0.406
0.203
2.296
0.160
0.022
0.610
0.110
0.140
.
0.054
0.014
2.070
0.550
0.670
0.210
0.090
0.66
Min.
15
1.27
15.49
15.49
14.986
0.711
0.457
0.254
16.59
16.59
17.53
17.53
Nom.
2.286
3.048
16.00
3.81
2.54
13.72
3.81
0.406
1.219
0.254
0.203
Min.
0
BSC
Revision A9
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
Nom.
15.24
52.20
13.84
3.302
16.51
3.937
0.457
1.27
0.254
2.54
15.494
52.58
2.794
17.01
4.064
0.559
1.372
0.356
13.97
Max.
5.334
3.556
2.286
15