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HC6856YSFZC35 Datasheet(PDF) 10 Page - Honeywell Solid State Electronics Center

Part # HC6856YSFZC35
Description  32K x 8 STATIC RAM
Download  12 Pages
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Manufacturer  HONEYWELL [Honeywell Solid State Electronics Center]
Direct Link  http://honeywell.com/Pages/Home.aspx
Logo HONEYWELL - Honeywell Solid State Electronics Center

HC6856YSFZC35 Datasheet(HTML) 10 Page - Honeywell Solid State Electronics Center

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HC6856
10
PACKAGING
The 32K x 8 SRAM 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
2O3) and features
internal power and ground planes. The 36-lead FP also
features a non-conductive ceramic tie bar on the lead
frame. The purpose of the tie bar is to allow electrical testing
of the device, while preserving the lead integrity during
shipping and handling, up to the point of lead forming and
insertion. Ceramic chip capacitors can be mounted to the
package by the user 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, both of which are critical in
a transient radiation environment. All NC (no connect) pins
must be connected to either VDD, VSS or an active driver
to prevent charge build up in the radiation environment.
36-LEAD FLAT PACK (22017194-001)
36-LEAD FLAT PACK PINOUT
28-LEAD DIP & FP PINOUT
VDD
NWE
A13
A8
A9
A11
NOE
A10
NCS
DQ7
DQ6
DQ5
DQ4
DQ3
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Top
View
[1] Parts delivered with leads unformed
[2] At tie bar
[3] Lid tied to VSS
A
b
C
D
E
e
F
G
H
I
J
L
0.095 ± 0.010
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
M
N
O
P
R
S
T
U
V
W
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
All dimensions are in inches [1]
Non-
Conductive
Tie-Bar
b
(width)
e
(pitch)
E
1
H
L
L
Kovar
Lid [3]
Ceramic
Body
A
J
I
C
M
Top
Side
0.004
N
X
Optional
Standoff
1
VSS
VDD
V
S
W
P
U
Y
VDD
VSS
O
T
R
Optional
Capacitors
VSS
VDD
NWE
CE
A13
A8
A9
A11
NOE
A10
NCS
DQ7
DQ6
DQ5
DQ4
DQ3
VDD
VSS
VSS
VDD
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
NC
VDD
VSS
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
Top
View
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2
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