HM-6642 Intersil Corporation, HM-6642 Datasheet - Page 7

• Manufacturer Part Number: HM-6642
• Description: 512x8 Cmos Prom
• Manufacturer: Intersil Corporation

j
E1
x 45
Ceramic Leadless Chip Carrier Packages (CLCC)
B
h x 45
E2
o
-E-
e
-F-
1
A
o
L
0.010
S
L2
E H
S
0.007
D3
D
D1
B1
M
7
-H-
D2
B2
E F
e
S H S
A1
L3
E3
0.010
PLANE 2
PLANE 1
B3
L1
E
S
E F
HM-6642/883
S
J28.A
28 PAD CERAMIC LEADLESS CHIP CARRIER PACKAGE
NOTES:
SYMBOL
1. Metallized castellations shall be connected to plane 1 terminals
2. Unless otherwise specified, a minimum clearance of 0.015 inch
3. Symbol “N” is the maximum number of terminals. Symbols “ND”
4. The required plane 1 terminals and optional plane 2 terminals (if
5. The corner shape (square, notch, radius, etc.) may vary at the
6. Chip carriers shall be constructed of a minimum of two ceramic
7. Dimension “A” controls the overall package thickness. The maxi-
8. Dimensioning and tolerancing per ANSI Y14.5M-1982.
9. Controlling dimension: INCH.
ND
NE
A1
B1
B2
B3
D1
D2
D3
E1
E2
E3
and extend toward plane 2 across at least two layers of ceramic
or completely across all of the ceramic layers to make electrical
connection with the optional plane 2 terminals.
(0.38mm) shall be maintained between all metallized features
(e.g., lid, castellations, terminals, thermal pads, etc.)
and “NE” are the number of terminals along the sides of length
“D” and “E”, respectively.
used) shall be electrically connected.
manufacturer’s option, from that shown on the drawing.
layers.
e1
L1
L2
L3
mum “A” dimension is package height before being solder dipped.
A
B
D
E
N
e
h
L
j
MIL-STD-1835 CQCC1-N28 (C-4)
0.060
0.050
0.022
0.006
0.442
0.442
0.015
0.045
0.045
0.075
0.003
MIN
-
-
-
0.300 BSC
0.150 BSC
0.300 BSC
0.150 BSC
0.050 BSC
0.072 REF
0.040 REF
0.020 REF
INCHES
28
7
7
0.100
0.088
0.028
0.022
0.460
0.460
0.460
0.460
0.055
0.055
0.095
0.015
MAX
-
-
11.23
11.23
1.27
0.56
0.15
1.14
1.14
1.90
0.08
1.52
0.38
MIN
MILLIMETERS
-
-
-
1.83 REF
7.62 BSC
3.81 BSC
7.62 BSC
3.81 BSC
1.27 BSC
1.02 REF
0.51 REF
28
7
7
11.68
11.68
11.68
11.68
2.54
2.23
0.71
0.56
1.40
1.40
2.41
0.038
MAX
-
-
Rev. 0 5/18/94
NOTES
6, 7
2, 4
2
2
2
5
5
3
3
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-