Automotive three-channel configurable gate with logic-level shifter

The SN74LV3T99-Q1 device contains three

independent configurable logic gates with 3-state

outputs. Each gate has four inputs and performs

the Boolean function Y = (A • /C + B • C) ⊕ D.

All inputs include Schmitt-triggers, eliminating any

erroneous data outputs due to slow-edged or noisy

input signals. The user can choose logic functions,

such as MUX, AND, OR, NAND, NOR, XOR, XNOR,

inverter, and buffer by connecting the inputs A, B, C,

and D appropriately.

The input is designed with a reduced threshold circuit

to support up translation when the supply voltage

is larger than the input voltage. Additionally, the 5V

tolerant input pins enable down translation when the

input voltage is larger than the supply voltage. The

output level is always referenced to the supply voltage

(VCC) and supports 1.8V, 2.5V, 3.3V, and 5V CMOS

levels.