str712 STMicroelectronics, str712 Datasheet - Page 70

• Manufacturer Part Number: str712
• Description: 144/64-pin Arm7tdmi Mcu With Up To 256kb Flash, 64kb Ram And Emi
• Manufacturer: STMicroelectronics

Package characteristics
70/78
Figure 41. 144-Pin low profile quad flat package
Jedec Ref. MS-026-BFB
b
109
144
108
1
e
D1
D3
D
Recommended footprint (dimensions in mm)
73
36
72
37
E3
E1
L1
E
L
Seating Plane
h
0.08 mm
.003 in.
b
A1
c
A2
A
1.Values in inches are converted from mm and
rounded to 3 decimal digits.
Dim.
A1
A2
D1
D3
E1
E3
L1
A
D
E
K
N
b
c
e
L
21.80 22.00 22.20 0.858 0.867 0.874
19.80 20.00 20.20 0.780 0.787 0.795
21.80 22.00 22.20 0.858 0.867 0.874
19.80 20.00 20.20 0.780 0.787 0.795
0.05
1.35 1.40 1.45 0.053
0.17 0.22 0.27 0.007
0.09
0.45 0.60 0.75 0.018 0.024 0.030
Min
0°
17.50
17.50
0.50
1.00
mm
Typ
3.5°
Number of Pins
Max
1.60
0.15 0.002
0.20 0.004
7°
144
Min
0°
STR71xF
inches
0.689
0.689
0.020
0.039
Typ
3.5°
(1)
0.063
0.006
0.057
0.011
0.008
Max
7°