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ITT - Index of

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<strong>ITT</strong>7520<br />

SENSE AMPLIFIERS<br />

TYPICAL APPLICATIONS<br />

Small Memory Systems<br />

This application demonstrates an improved<br />

method <strong>of</strong> sensing data from relatively small<br />

memory systems. Two individual core planes,<br />

usually consisting <strong>of</strong> 4096 cores each, can be<br />

interfaced by each <strong>of</strong> the dual-channel <strong>ITT</strong>7524<br />

or <strong>ITT</strong>7525 sense amplifiers, see Figure K.<br />

Standard TTL or DTL integrated circuits, driven<br />

directly from the compatible sense-amplifier<br />

outputs, may be selected to serve as the memory<br />

data register (MDR).<br />

PLANE 1<br />

4096 CORES<br />

(Typical)<br />

PLANE 2<br />

4096 CORES<br />

(Typical)<br />

PLANE 3<br />

4096 CORES<br />

(Typical)<br />

PLANE 4<br />

4096 CORES<br />

(Typical)<br />

SENSE LINE 1<br />

STROBE .It.<br />

r:- - - - - - 752417525<br />

MEMORY DATA<br />

REGISTER<br />

r-----,<br />

t---'.-----T""I I I<br />

I I<br />

SENSE LINE 2<br />

SENSE LINE 3<br />

SENSE LINE 4<br />

I<br />

L __ _<br />

_---4__ y---r-----i BIT 1 I<br />

I<br />

I I<br />

1---- -J<br />

I<br />

I<br />

I<br />

I<br />

BIT 2<br />

~----~<br />

- 7524/ 7525--, I I<br />

I I I<br />

I I<br />

~---II---""1 BIT 3<br />

~~-J I :<br />

I<br />

I<br />

I<br />

I<br />

L-----i<br />

I I<br />

I<br />

I I<br />

)--'--'1----1 BIT 4<br />

'---~J<br />

I<br />

I I I I<br />

L ____ J<br />

L ____ 1 ____ .,...._.J<br />

I<br />

\~------------------------------~vr------------------------------~'<br />

To additional planes and 7524's or 7525'$<br />

as necessary for complete memory word<br />

Figure K-Sensing Small Memory Systems<br />

6-46

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