W78E51B-40 WINBOND [Winbond], W78E51B-40 Datasheet - Page 22

• Manufacturer Part Number: W78E51B-40
• Description: 8-BIT MTP MICROCONTROLLER
• Manufacturer: WINBOND [Winbond]

Package Dimensions, continued
44-pin PQFP
44-pin TQFP
11
11
1
1
Seating Plane
Seating Plane
12
12
44
44
See Detail F
See Detail F
e
e
H
H
D
D
D
D
b
b
22
22
34
34
y
y
33
33
E
A
E
A
A
A
2
1
2
1
H
H
E
A
E
A
L
L
c
L
L
c
1
1
- 22 -
Detail F
Detail F
Preliminary W78E51B
Notes:
Notes:
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
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
H
H
A
A
A
b
c
D
E
e
L
L
y
flash.
protrusion/intrusion.
on final visual inspection spec.
A
A
A
c
D
E
H
H
L
flash.
protrusion/intrusion.
on final visual inspection spec.
b
e
L
y
1
1
1
2
D
E
1
2
E
D
0.002
0.075
0.01
0.004
0.390
0.390
0.025
0.510
0.051
0.002
0.037
0.0039
0.004
0.390
0.390
0.025
0.468
0.510
0.025
0.468
0.018
Dimension in inch
Min. Nom. Max.
Dimension in inch
Min.
---
---
---
0
0
0.081
0.014
0.006
0.394
0.394
0.031
0.520
0.520
0.031
0.063
Nom.
0.039
0.013
0.394
0.394
0.031
0.472
0.472
0.024
0.039
0.01
0.004
---
---
---
0.087
0.018
0.010
0.398
0.530
0.075
0.041
0.015
0.008
0.398
0.398
0.036
0.530
0.037
0.003
0.398
0.036
0.476
0.476
0.030
0.003
Max.
0.02
0.006
0.047
---
7
---
7
12.95
1.295
11.90
Dimension in mm
0.05
1.90
0.25
0.101
9.9
0.635
12.95
Dimension in mm
0.05
0.95
0.22
0.090
9.9
0.635
11.90
9.9
9.9
Min.
0.65
Min.
0.45
---
---
0
---
0
Nom.
Nom.
10.00
10.00
2.05
10.00
1.00
10.00
0.25
0.35
0.152
13.2
13.2
0.10
0.32
12.00
12.00
0.80
0.80
1.6
1.00
0.8
---
0.60
---
---
13.45
12.10
2.20
0.45
13.45
1.905
1.05
0.38
12.10
Max.
0.254
0.952
Max.
1.20
0.200
0.952
0.5
10.1
10.1
0.95
0.15
10.1
10.1
0.75
0.08
0.08
---
7
7
---