723644L15PFG中文資料瑞薩數(shù)據(jù)手冊(cè)PDF規(guī)格書

? Memory storage capacity:

IDT723624 – 256 x 36 x 2

IDT723634 – 512 x 36 x 2

IDT723644 – 1,024 x 36 x 2

? Clock frequencies up to 67 MHz (10 ns access time)

? Two independent clocked FIFOs buffering data in opposite directions

? Select IDT Standard timing (using EFA, EFB, FFA, and FFB flags

functions) or First Word Fall Through Timing (using ORA, ORB,

IRA, and IRB flag functions)

? Programmable Almost-Empty and Almost-Full flags; each has

three default offsets (8, 16 and 64)

? Serial or parallel programming of partial flags

? Port B bus sizing of 36-bits (long word), 18-bits (word) and

9-bits (byte)

? Big- or Little-Endian format for word and byte bus sizes

? Master Reset clears data and configures FIFO, Partial Reset

clears data but retains configuration settings

? Mailbox bypass registers for each FIFO

? Free-running CLKA and CLKB may be asynchronous or coincident

(simultaneous reading and writing of data on a single clock

edge is permitted)

? Auto power down minimizes power dissipation

? Available in space saving 128-pin Thin Quad Flatpack (TQFP)

? Green parts available, see ordering information