4-Bit Cascadable Full Adder with Carry-In, Carry-Out, and Overflow
ADD4 adds two words (A3 – A0 and B3 – B0) and a carry-in (CI), producing a sum output (S3 – S0) and carry-out (CO) or overflow (OFL).
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 |