The SN54/74LS12 is a three-input NAND gate with low-power Schottky diodes, available in ceramic and plastic packages. The power supply voltage range is 4.5 to 5.5 V and the operating temperature range is -55 to 125 degrees Celsius.
The SN54/74LS12 is a triple 3‑input NAND gate offered in both ceramic (SN54) and plastic (74LS) packages. The document lists ordering codes, package types, and guaranteed operating ranges for the device.
Key electrical parameters are given, including supply voltage, input thresholds, output levels, and timing specifications such as turn‑on and turn‑off delays. Both DC and AC characteristics are tabulated for typical operating conditions.
| Input HIGH Voltage | 2.0 V (min) |
|---|