Part Number
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HD74HC182 |
Manufacturer
|
Hitachi Semiconductor |
Description
|
Look-Ahead Carry Generator |
Published
|
Mar 23, 2005 |
Detailed Description
|
HD74HC182
Look-Ahead Carry Generator
Description
The HD74HC182 is a high-speed Carry Lockahead Generator. It is used wi...
|
Datasheet
|
HD74HC182
|
Overview
HD74HC182
Look-Ahead Carry Generator
Description
The HD74HC182 is a high-speed Carry Lockahead Generator.
It is used with the HD74HC181 4-Bit Arithmetic Logic Unit to provide high-speed lockahead over World lengths of more than four bits.
The device accepts up to four pairs of active-low Carry Propagate (P 0, P1, P 2, P 3) and Carry Generate (G0, G1, G 2, G3) signals and an active-high carries (C n+x, Cn+y, Cn+z) across four groups of binary adders.
The HD74HC182 also has active-low Carry Propagate (P) and Carry Generate (G) outputs which may be used for further levels of lockahead.
The logic equations provided at the outputs are: C n+x = Y0 (X0 + Cn) C n+y = Y1 {X 1 + Y0 (X0 + Cn)} C n+z =...
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