IDT74LVCH16952A

This 16-bit registered transceiver is built using advanced dual metal CMOS technology. This high-speed, low power device is organized as two independent 8-bit D-type registered transceivers with separate input and output control for independent control of data flow in either direction. For example, the A-to-B Enable (CEAB) must be LOW to enter data from the A port. CLKAB controls the clocking function. When CLKAB toggles from LOWto- HIGH, the data present on the A port will be clocked into the register. OEAB performs the output enable function on the B port. Data flow from the B port to A port is similar but requires using CEBA, CLKBA, and OEBA inputs. Full 16-bit operation is achieved by tying the control pins of the independent transceivers together.

All pins can be driven from either 3.3V or 5V devices. This feature allows the use of this device as a translator in a mixed 3.3V/5V supply system.

The LVCH16952A has "bus-hold" which retains the inputs' last state whenever the input goes to a high impedance. This prevents floating inputs and eliminates the need for pull-up/down resistors.