The IO6LC consists of a pair of six (6) diodes that steer the ESD transient currents to either the positive supply voltage or to ground. Its repetitive reverse voltage of greater than 70 volts enables the device to protect data lines of 3 V, 5 V, 12 V, 15 V, 24 V, and up to 36 V.
This device can be configured for either unidirectional or bi-directional signal data line applications. Pins 7 and 3 are connected between the positive voltage bus to ground, respectively, to enable unidirectional over voltage protection. For bi-directional over voltage protection, the pins are connected, respectively, to the positive and negative voltage bus.