SN54ALS20A is Dual 4-Input Positive-NAND Gate manufactured by Texas Instruments.
| Part Number | Description |
|---|---|
| SN54ALS21A | Dual 4-Input Positive-AND Gate |
| SN54ALS240A | OCTAL BUFFERS/DRIVERS |
| SN54ALS241C | Octal Buffers/Drivers |
| SN54ALS243A | Quadruple Bus Transceiver |
| SN54ALS244C | OCTAL BUFFERS AND LINE DRIVER |
These devices contain two independent 4-input positive-NAND gates. They perform the Boolean functions Y = A B C D or Y = A + B + C + D in positive logic. The SN54ALS20A and SN54AS20 are characterized for operation over the full military temperature range of − 55°C to 125°C.
