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HC6856WVHCC60 Datasheet(PDF) 10 Page - Honeywell Solid State Electronics Center |
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HC6856WVHCC60 Datasheet(HTML) 10 Page - Honeywell Solid State Electronics Center |
10 / 12 page 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 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
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