Re: LF: RAM Upgrade
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At 12:50 AM 11/21/96 +0000, you wrote:
>> >You need a TC551001BTRL-85L 128k x 8 SRAM chip made by Toshiba. If they
>> >don't have that a TC551001BTRI-85L should work. I don't know, actually, if
>> >either of these will work since I haven't actually tried it yet. The
>> >...BTRL should almost definitely work, and the only difference ( that I
>> >could find ) in the BTRI is a larger tollerance to heat so it should
work too.
>
>Is the socket in the TI-92 a regular socket for a DIP or is it a
>surface mount socket (series of pads) for a SOP?
>
>-Ed
It is surface mount, with the pins congigured like this:
____________________________________________________________
-| 16 17 |-
-| |-
-| |-
-| |-
-| |-
-| |-
-| |-
-| |-
-| |-
-| |-
-| |-
-| |-
-| |-
-| |-
-| |-
-|_1_______________________________________________________32_|-
It is the reverse of the chip on the main board. Get the data sheet in pdf
form from:
http://www.toshiba.com/taec/components/category/StaticRAM-StandardSRAM5V.shtml
Bill Stysiack
wjs12@cornell.edu
References: