IDT74LVCH16276A

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 IDT74LVCH16276A synchronous bus exchanger is built using advanced dual metal CMOS technology.The LVCH16276A is a high-speed, bidirectional, 12-bit, registered, bus multiplexer for use in synchronous memory interleaving applications. All registers have a common clock and use a clock enable (CExxx ) on each data register to control data sequencing. The output enables and mux select (OEA , OEB and SEL) are also under synchronous control allowing direction changes to be edge triggered events.

The tri-port bus exchanger has three 12-bit ports. Data may be transferred between the A port and either/both of the B ports. The clock enable (CE1B , CE2B , CEA1B and CEA2B ) inputs control the data storage. Both B ports have a common output enable (OEB ) to aid in synchronously loading the B registers from the B port.

All pins of the IDT74LVCH16276A 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 IDT74LVCH16276A has been designed with a ±24mA output driver. This driver is capable of driving a moderate to heavy load while maintaining speed performance.

The IDT74LVCH16276A 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.