The 74LS21 device contains two independent gates each of which performs the logic NAND function. The 74LS21 feature is an alternate Military/Aerospace device is available. Contact a National Semiconductor Sales Office/ Distributor for specifications.
Specification:-
| Symbol | Parameter | Min | Nom | Max | Units |
| VCC | Supply Voltage | 4.5 | 5 | 5.5 | V |
| TA | Operating Ambient Temperature Range | -55 | 25 | 125 | °C |
| IOH | Output Current — High | –0.4 | m A | ||
| IOL | High-level Output Current | 8 | m A |
* product image for illustration purposes only. actual product may vary.
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