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參數資料
型號: W81C280
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: USB Keyboard/ Device Controller(具有通用串行總線接口的鍵盤/設備控制器)
中文描述: 8-BIT, MROM, MICROCONTROLLER, PDIP40
封裝: DIP-40
文件頁數: 26/27頁
文件大小: 328K
代理商: W81C280
W81C280
Publication Release Date: July 1997
- 22 -
Revision 0.50
10. PACKAGE DIMENSIONS
40-pin PDIP
1.37
1.22
0.054
0.048
Notes:
1. tie bar burrs.
2. are determined at the m.
4. protrusion/intrusion.
Symbol
Min.
Nom. Max.
Max.
5.33
Nom.
Min.
Dimension in inches
Dimension in mm
A
A
A
B
B
1
c
D
E
E
1
e
L
a
A
S
1
2
0.050
1.27
0.210
0.010
0.150
0.016
0.155
0.018
0.160
0.022
3.81
0.41
0.25
3.94
0.46
4.06
0.56
0.008
0.120
0.670
0.010
0.130
0.014
0.140
0.20
3.05
0.25
3.30
0.36
3.56
0.540
0.550
0.110
0.545
0.100
13.72
13.97
13.84
17.02
15.24
14.99
15.49
0.600
0.590
0.610
2.29
2.54
2.79
0.090
1
e
2.055
2.070
52.20
52.58
0
15
0.090
2.29
0.650
0.630
16.00
16.51
6. General appearance spec. should be based on
final visual inspection spec.
5. Controlling dimension: Inches.
15
0
Seating Plane
e
A
2
A
a
c
E
Base Plane
1
A
1
e
L
A
S
1
E
D
1
B
B
40
21
20
1
42-pin PDIP
1.37
1.22
0.054
0.048
Notes:
1. tie bar burrs.
2. are determined at the m.
4. protrusion/intrusion.
Symbol
Min.
Nom. Max.
Max.
5.33
Nom.
Min.
Dimension in inches
Dimension in mm
A
A
A
B
B
1
c
D
E
E
1
e
L
a
A
S
1
2
0.050
1.27
0.210
0.010
0.150
0.016
0.155
0.018
0.160
0.022
3.81
0.41
0.25
3.94
0.46
4.06
0.56
0.008
0.120
0.670
0.040
0.010
0.130
0.014
0.140
0.20
3.05
0.25
3.30
0.36
3.56
0.540
0.550
0.110
0.545
0.100
13.72
13.97
13.84
17.02
15.24
14.99
15.49
0.600
0.590
0.610
2.29
2.54
2.79
0.090
1
e
2.055
2.070
52.20
52.58
0
15
1.02
0.650
0.630
16.00
16.51
6. General appearance spec. should be based on
final visual inspection spec.
5. Controlling dimension: Inches.
15
0
Seating Plane
e
A
2
A
a
c
E
Base Plane
1
A
1
e
L
A
S
1
E
1
B
B
22
21
1
D
42
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