參數(shù)資料
型號(hào): W78C51C
廠商: WINBOND ELECTRONICS CORP
英文描述: 8-BIT Microcontroller(8位的微控制器)
中文描述: 8位微控制器(8位的微控制器)
文件頁數(shù): 13/14頁
文件大?。?/td> 234K
代理商: W78C51C
W78C51C
Publication Release Date: October 1997
- 13 -
Revision A3
Package Dimensions, continued
44-pin PLCC
44
40
39
29
28
18
17
7
6
1
L
c
1
b
2
A
H
D
D
e
b
E
H
E
y
A
A
1
Seating Plane
D
G
G
E
Symbol
Min. Nom.
Max.
Max.
Nom.
Min.
Dimension in inch
Dimension in mm
A
A
A
b
1
e
G
D
H
E
L
y
b
c
D
E
1
2
H
D
G
E
Notes:
1. Dimension D & E do not include interlead
on final visual inspection spec.
4. General appearance spec. should be based
3. Controlling dimension: Inches
protrusion/intrusion.
2. Dimension b1 does not include dambar
flash.
0.020
0.145
0.026
0.016
0.008
0.648
0.590
0.680
0.090
0.150
0.028
0.018
0.010
0.653
0.610
0.690
0.100
0.050
BSC
0.185
0.155
0.032
0.022
0.014
0.658
0.630
0.700
0.110
0.004
0.508
3.683
0.66
0.406
0.203
16.46
14.99
17.27
2.296
3.81
0.711
0.457
0.254
16.59
15.49
17.53
2.54
1.27
4.699
3.937
0.813
0.559
0.356
16.71
16.00
17.78
2.794
0.10
BSC
16.71
16.59
16.46
0.658
0.653
0.648
16.00
15.49
14.99
0.630
0.610
0.590
17.78
17.53
17.27
0.700
0.690
0.680
θ
44-pin QFP
Seating Plane
11
22
12
See Detail F
e
b
A
y
1
A
A
L
L
1
c
E
E
H
1
D
44
H
D
34
33
Detail F
1. Dimension D & E do not include interlead
flash.
2. Dimension b does not include dambar
protrusion/intrusion.
3. Controlling dimension: Millimeter
4. General appearance spec. should be based
on final visual inspection spec.
0.254
0.101
0.010
0.004
Notes:
Symbol
Min.
Nom.
Max.
Max.
Nom.
Min.
Dimension in inch
Dimension in mm
A
A
A
b
c
D
E
e
H
D
H
E
L
L
1
y
θ
1
2
0.006
0.152
---
0.002
0.075
0.01
0.081
0.014
0.087
0.018
1.90
0.25
0.05
2.05
0.35
2.20
0.45
0.390
0.025
0.063
0.003
0
7
0.394
0.031
0.398
0.037
9.9
0.80
0.65
1.6
10.00
0.8
10.1
0.95
0.398
0.394
0.390
0.530
0.520
0.510
13.45
13.2
12.95
10.1
10.00
9.9
7
0
0.08
0.031
0.01
0.02
0.25
0.5
---
---
---
---
---
2
θ
0.025
0.036
0.635
0.952
0.530
0.520
0.510
13.45
13.2
12.95
0.051
0.075
1.295
1.905
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