参数资料
型号: SLC88B17QFP
厂商: STANDARD MICROSYSTEMS CORP
元件分类: 总线控制器
英文描述: ISA BUS CONTROLLER, PQFP160
封装: QFP-160
文件页数: 49/54页
文件大小: 333K
代理商: SLC88B17QFP
SMSC DS – SLC88B17
Page 53
Rev. 09/20/99
PACKAGE SPECIFICATION
The SLC88B17 uses a 160-pin QFP package. The mechanical dimensions and the pinout of the chip are outlined as
follows.
160 PIN QFP PACKAGE OUTLINE, 3.2MM FOOTPRINT
MIN
NOMINAL
MAX
REMARKS
A
~
4.07
Overall Package Height
A1
0.05
~
0.5
Standoff
A2
3.1
~
3.67
Body Thickness
D
30.95
31.20
31.45
X Span
D/2
15.475
15.60
15.725
1/
2 X Span Measured from Centerline
D1
27.90
28.00
28.10
X body Size
E
30.95
31.20
31.45
Y Span
E/2
15.475
15.60
15.725
1/
2 Y Span Measured from Centerline
E1
27.90
28.00
28.10
Y body Size
H
0.10
~
0.20
Lead Frame Thickness
L
0.65
0.80
0.95
Lead Foot Length
L1
~
1.60
~
Lead Length
e
0.65 Basic
Lead Pitch
θθθθ
0
o
~7
o
Lead Foot Angle
W
0.20
~
0.40
Lead Width
R1
~
0.20
~
Lead Shoulder Radius
R2
~
0.30
~
Lead Foot Radius
ccc
~
0.09
Coplanarity (Assemblers)
ccc
~
0.10
Coplanarity (Test House)
Notes:
1. Controlling Unit: millimeter
2. Tolerance on the position of the leads is ± 0.065 mm maximum
3. Package body dimensions D1 and E1 do not include the mold protrusion. Maximum mold protrusion is 0.25 mm
4. Dimension for foot length L measured at the gauge plane 0.25 mm above the seating plane.
5. Details of pin 1 identifier are optional but must be located within the zone indicated.
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