器件名称TI

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产品sn74act3638TI
描述

The SN74ACT3638?is a high-speed, low-power CMOS clocked bidirectional FIFO memory. It supports clock frequencies up to 67 MHz and has read access times as fast as 11 ns. Two independent 512 × 32 dual-port SRAM FIFOs on the chip buffer data in opposite directions. The FIFO memory buffering data from port A to port B has retransmit capability, which allows previously read data to be accessed again. Each FIFO has flags to indicate empty and full conditions and two programmable flags (almost full and almost empty) to indicate when a selected number of words is stored in memory. Communication between each port can bypass the FIFOs via two 32-bit mailbox registers. Each mailbox register has a flag to signal when new mail has been stored. Two or more devices can be used in parallel to create wider datapaths.

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