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## Homework Statement

For the ALS logic circuit, estimate:

(a) the current I

_{OL}

(b) the delay in a 1-to-0 transition at one of the inputs of GATE 1

appearing as an effect at the output of GATE 5.

(c) the total power consumed by the circuit in a quiescent state.

## Homework Equations

/data[/B]## The Attempt at a Solution

I think this a NAND gate logic circuit, in red I have added the inputs and outputs. I have cropped part of a table, that showed typical values of certain logic families, to show the spec of an ALS. I think I am right in saying that this can only be an 74ALS. For (a) the low level output according to the table is 4mA, The low level inputs for gates 2,3 and 4 are 100uA each.

I don't know how or where to find the formulas to solve and my notes are dire.