HX6656 ETC1 [List of Unclassifed Manufacturers], HX6656 Datasheet - Page 9

• Manufacturer Part Number: HX6656
• Description: 32K x 8 ROM-SOI
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

PACKAGING
The 32K x 8 ROM is offered in a custom 36-lead flat pack
(FP), 28-Lead FP, or standard 28-lead DIP. Each package
is constructed of multilayer ceramic (Al
internal power and ground planes. The 36-lead FP also
features a non-conductive ceramic tie bar on the lead
frame. The tie bar allows electrical testing of the device,
while preserving the lead integrity during shipping and
handling, up to the point of lead forming and insertion.
36-LEAD FLAT PACK
DQ0
DQ1
DQ2
VSS
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
28-LEAD FP PINOUT
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
H
View
Top
C
L
A
VDD
1
X
1
1
Ceramic
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Body
VSS
2
22018131-001
O
P
VDD
NWE
A13
A8
A9
A11
NOE
A10
NCS
DQ7
DQ6
DQ5
DQ4
DQ3
Capacitors
View
Optional
3
Top
) and features
E
R
O
T
Y
VDD
U
VSS
Kovar
Lid [3]
V
9
W
L
N
Ceramic chip capacitors can be mounted to the package to
maximize supply noise decoupling and increase board
packing density. These capacitors attach directly to the
internal package power and ground planes. This design
minimizes resistance and inductance of the bond wire and
package. All NC (no connect) pins should be connected
to VSS to prevent charge build up in the radiation
environment.
VSS
VDD
DQ0
DQ1
DQ2
VDD
VSS
A14
A12
NC
A7
A6
A5
A4
A3
A2
A1
A0
Conductive
Tie-Bar
Non-
(width)
(pitch)
M
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
b
e
36-LEAD FP PINOUT
A
C
D
G
H
b
E
e
F
J
L
I
[1] Parts delivered with leads unformed
[2] At tie bar
[3] Lid tied to VSS
0.004
All dimensions are in inches
0.095 ± 0.014
0.008 ± 0.002
0.005 to 0.0075
0.650 ± 0.010
0.630 ± 0.007
0.025 ± 0.002 [2]
0.425 ± 0.005 [2]
0.525 ± 0.005
0.135 ± 0.005
0.030 ± 0.005
0.080 typ.
0.285 ± 0.015
View
Top
W
M
N
O
R
U
P
S
T
V
X
Y
0.008 ± 0.003
0.050 ± 0.010
0.090 ref
0.015 ref
0.075 ref
0.113 ± 0.010
0.050 ref
0.030 ref
0.080 ref
0.005 ref
0.450 ref
0.400 ref
[1]
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
HX6656
VSS
VDD
NWE
CE
A13
A8
A9
A11
NOE
A10
NCS
DQ7
DQ6
DQ5
DQ4
DQ3
VDD
VSS