Datasheet

Mechanical Specifications
Data Sheet MC68HC908LJ24/LK24 — Rev. 2.1
454 Mechanical Specifications Freescale Semiconductor
25.5 80-Pin Low-Profile Quad Flat Pack (LQFP)
Figure 25-3. 80-Pin Low-Profile Quad Flat Pack (Case No. 917)
R (R2)
4X
VIEW Y
61
60
40
41
21
80
20
1
A2
A
VIEW P
B
B
c1
c
b
b1
R (R1)
S
(L2)
VIEW P
4X
A–B0.200 C D
PIN 1
IDEx
0.1
8X
A1
76X
SEATING
PLANE
VIEW Y
3 PLACES
SECTION B–B
80 PLACES
θ1
ROTATED 90° CLOCKWISE
PLATING
BASE
METAL
D
D/2
D1
D1/2
E
B
E/2
E1/2
A
D
A–B0.200 H D
e
θ2
H
C
C
L
(L1)
0.25
GAGE
PLANE
e/2
X
NOTES:
X=A, B, or D
A–B0.08 CD
M
1. ALL DIMENSIONS AND TOLERANCES TO
CONFORM TO ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DATUM PLANE H IS COINCIDENT WITH THE
BOTTOM OF THE LEAD WHERE THE LEAD
EXITS THE PLASTIC BODY AT THE BOTTOM OF
THE PARTING LINE.
4. DATUMS A, B AND D TO BE DETERMINED AT
DATUM PLANE H.
5. DIMENSIONS D AND E TO BE DETERMINED AT
SEATING PLANE C.
6. DIMENSIONS D1 AND E1 DO NOT INCLUDE
MOLD PROTRUSION. ALLOWABLE
PROTRUSION IS 0.25 PER SIDE. DIMENSIONS
D1 AND E1 DO INCLUDE MOLD MISMATCH AND
ARE DETERMINED AT DATUM PLANE H.
7. DIMENSION b DOES NOT INCLUDE DAMBAR
PROTRUSION. THE DAMBAR PROTRUSION
SHALL NOT CAUSE THE b DIMENSION TO
EXCEED 0.35.
DIM MIN MAX
MILLIMETERS
A — 1.60
A1 0.05 0.15
A2 1.35 1.45
D 14.00 BSC
D1 12.00 BSC
E 14.00 BSC
E1 12.00 BSC
L 0.45 0.75
L1 1.00 REF
L2 0.50 REF
R1 0.20 REF
R2 0.20 REF
S 0.17 REF
b 0.17 0.27
b1 0.17 0.23
c 0.12 0.20
c1 0.12 0.16
e 0.50 BSC
0 ° 7 °
θ
1 0 ° —
θ 2 10 ° 14 °
θ
θ
E1