IDT74LVC16601A

NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

The IDT74LVC16601A 18-bit universal bus transceiver is built using advanced dual metal CMOS technology. This 18-bit universal bus transceiver combines D-type latches and D-type flip-flops to allow data flow in transparent, latched and clocked modes.

Data flow in each direction is controlled by output-enable (OEAB and OEBA), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. The clock can be controlled by the clock-enable (CLKENAB and CLKENBA) inputs.

For A-to-B data flow, the IDT74LVC16601A operates in the transparent mode when LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is low, the A-bus data is stored in the latch/ flip-flop on the LOW-to-HIGH transition of CLKAB. Output enable OEAB is active low. WhenOEAB is low, the outputs are active. When OEAB is high, the outputs are in the high-impedance state. Data flow for B to A is similar to that of A to B but uses OEBA, LEBA, CLKBA and CLKENBA.

All pins of the IDT74LVC16601A 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 LVC16601A has been designed with a ±24mA output driver. This driver is capable of driving a moderate to heavy load while maintaining speed performance.