Hot-selling and scarce IDT723631L15PF CMOS SyncFIFOO 512 x 36, 1024 x 36, 2048 x 36 QFP spot stock

Product Descriptions

The IDT723631/723641/723651 is a clocked FIFO,which means each port employs a synchronous interface. All data transfers  through  a  port  are  gated  to  the  LOW-to-HIGH transition of a continuous (free-running) port clock by enable signals. The continuous clocks for each port are independent

of one another and can be asynchronous or coincident. The enables for  each  port  are  arranged  to  provide  a  simple interface between microprocessors and/or buses with synchronous control.

The input-ready (IR) flag and almost-full (AF) flag of the FIFO are two-stage synchronized to CLKA. The output-ready(OR) flag and almost-empty (AE) flag of the FIFO are twostage synchronized to CLKB. Offset values for the almost-full and almost empty flags of the FIFO can be programmed from port A or through a serial input.

Product Features

• Free-running CLKA and CLKB can be asynchronous or coincident (permits simultaneous reading and writing of data on a single clock edge)

• Clocked FIFO buffering data from Port A to Port B

• Storage capacity: IDT723631 - 512 x 36

IDT723641 - 1024 x 36

IDT723651 - 2048 x 36

• Synchronous read retransmit capability

• Mailbox register in each direction

• Programmable Almost-Full and Almost-Empty flags

• Microprocessor interface control logic

• Input-Ready (IR) and Almost-Full (AF) flags synchronized by CLKA

• Output-Ready (OR) and Almost-Empty (AE) flags syn chronized by CLKB

• Low-power 0.8-micron advanced CMOS technology

• Supports clock frequencies up to 67 MHz

• Fast access times of 11 ns

• Available in 132-pin plastic quad flat package (PQF) or space-saving 120-pin thin quad flat package (TQFP)

• Industrial temperature range (-40°C to +85°C) is avail able, tested to military electrical specifications

Product Photos

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