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HD74ALVCH16269
12-bit to 24-bit Registered Bus Transceivers with 3-state Outputs
REJ03D0046-0200Z (Previous ADE-205-136(Z))
Rev.2.00 Oct.02.2003
Description
The HD74ALVCH16269 is used in applications where two separate ports must be multiplexed onto, or demultiplexed from, a single port. The device is particularly suitable as an interface between synchronous DRAMs and high speed microprocessors. Data is stored in the internal B port registers on the low to high transition of the clock (CLK) input when the appropriate clock enable (CLKENA) inputs are low. Proper control of these inputs allows two sequential 12-bit words to be presented as a 24-bit word on the B port. For data transfer in the B to A direction, a single storage register is provided.