SM8958A Datasheet, PDF (23/25 Pages) SyncMOS Technologies,Inc – 8 - Bit Micro-controller with 32KB flash & 1KB RAM embedded

SyncMOS Technologies Inc.
September 2002
SM8958A
44L Plastic Quad Flat Package
C
L
L1
S
e
θ2
R1
D2 D1 D
b
A2
θ3
Gage Plane
0.25 mm
R2
A1
E2
E1
A
E
e1
seating plane C
e
Note:
Dimension D1 and E1 do not include mold protrusion.
Allowance protrusion is 0.25mm per side.
Dimension D1 and E1 do include mold mismatch
and are determined datum plane.
Dimension b does not include dam bar protrusion.
Allowance dam bar protrusion shall be 0.08 mm total
in excess of the b dimension at maximum material
condition. Dam bar cannot be located on the lower
radius or the lead foot.
Symbol
A
A1
A2
b
c
D
D1
D2
E
E1
E2
e
L
L1
R1
R2
S
θ
θ1
θ2
θ3
C
Dimension in Inch
minimal/maximal
- / 0.100
0.006 / 0.014
0.071 / 0.087
0.012 / 0.018
0.004 / 0.009
0.520 BSC
0.394 BSC
0.315
0.520 BSC
0.394 BSC
0.315
0.031 BSC
0.029 / 0.041
0.063
0.005 / -
0.005 / 0.012
0.008 / -
0^° / 7^°
0^°/ -
10° REF
7^° REF
0.004
Dimension in mm
minimal/maximal
- / 2.55
0.15 / 0.35
1.80 / 2.20
0.30 / 0.45
0.09 / 0.20
13.20 BSC
10.00 BSC
8.00
13.20 BSC
10.00 BSC
8.00
0.80 BSC
0.73 / 1.03
1.60
0.13 / -
0.13 / 0.30
0.20 / -
as left
as left
as left
as left
0.10
Specifications subject to change without notice,contact your sales representatives for the most recent information.
23/25
Ver 1.0 PID 8958A 09/02