The CD74HCT20M is a high speed CMOS Logic dual 4-input NAND Gate. The logic gates utilize silicon gate CMOS technology to achieve operating speeds similar to LSTTL gates with the low power consumption of standard CMOS integrated circuits. It is commonly used in buffer circuits, logic inverter circuits etc.
Pin Description of 74HCT20:
| Pin Number | Pin Name | Description |
| 6 | NAND Gate Output pin (1) | Output pin of NAND Gate – 1 |
| 1,2,4,5 | NAND Gate Input pin (1) | Four Input pins of NAND Gate -1 |
| 7 | Ground | Connect to the ground of the circuit. |
| 9,10,12,13 | NAND Gate Input pin (2) | Four Input pins of NAND Gate -2 |
| 8 | NAND Gate Output pin (2) | Output pin of NAND Gate – 2 |
| 14 | Vcc (Vdd) | Used to power the IC. Typically +5V is used |
Features of 74HCT20:
- Four Input OR Gate – Dual Package
- Typical Operating Voltage: 5V
- Power Dissipation: 500mW
- Propagation Delay @5V: 8ns (maximum)
- Available in 14-pin PDIP, GDIP, PDSO packages
Note: Complete Technical Details can be found at the 74HCT20 datasheet give at the end of this page.
Equivalent for 74HCT20: CD4012, 74S140, 74HC20
