SN54ALS21A is Dual 4-Input Positive-AND Gate manufactured by Texas Instruments.
| Part Number | Description |
|---|---|
| SN54ALS20A | Dual 4-Input Positive-NAND 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-AND gates. They perform the Boolean functions Y = A B C D or Y = A + B + C + D in positive logic. The SN54ALS21A and SN54AS21 are characterized for operation over the full military temperature range of − 55°C to 125°C.
