8-Bit Identity Comparator with Active-Low Enable and Output
X74_521 is an 8-bit identity comparator with 16 data inputs for two 8-bit words (P7 – P0 and Q7 – Q0), active-Low data output (PEQ), and active-Low enable (G). When G is High, the PEQ output is High. When G is Low and the two input words are equal, PEQ is Low. X74_521 does a bit comparison of the two words to determine equality. When any of the two equivalent bits from the two words are not equal, PEQ is High.
Parameters
| Parameter | Description | Units | Default |
|---|---|---|---|
| DELAY | Propagation delay. | s | DGTDELAY |
| IN_MODE | Inputs mode. | IN | |
| OUT_MODE | Outputs mode. | OUT | |
| IOMODEL | The name of an I/O model, which describes the device’s loading and driving characteristics. | DGTDEFIOMODEL | |
| POWER_NODE | Digital power node name. Is the node used by the interface subcircuits which connect analog nodes to digital nodes. | $G_DPWR | |
| GROUND_NODE | Digital ground node name. Is the node used by the interface subcircuits which connect analog nodes to digital nodes. | $G_DGND |