DESCRIPTION:

The IDT723614 is a monolithic, high-speed, low-power BiCMOS bidirectional clocked FIFO memory. It supports clock frequencies up to 67MHz and has read access times as fast as 10ns. Two independent 64 x 36 dual-port SRAM FIFOs on board the chip buffer data in opposite directions.

FEATURES:

• Free-running CLKA and CLKB can be asynchronous or

coincident (simultaneous reading and writing of data on a

single clock edge is permitted)

• Two independent clocked FIFOs (64 x 36 storage

capacity each) buffering data in opposite directions

• Mailbox bypass Register for each FIFO

• Dynamic Port B bus sizing of 36-bits (long word), 18-bits

(word), and 9-bits (byte)

• Selection of Big- or Little-Endian format for word and

byte bus sizes

• Three modes of byte-order swapping on port B

• Programmable Almost-Full and Almost-Empty Flags

• Microprocessor interface control logic

• EFA, FFA, AEA, and AFA flags synchronized by CLKA

• EFB, FFB, AEB, and AFB flags synchronized by CLKB

• Passive parity checking on each port

• Parity generation can be selected for each port

• Low-power advanced BiCMOS technology

• Supports clock frequencies up to 67 MHz

• Fast access times of 10 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

available, tested to military electrical specifications