723666L15PFG中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

? Memory storage capacity:

IDT723656 – 2,048 x 36 x 2

IDT723666 – 4,096 x 36 x 2

IDT723676 – 8,192 x 36 x 2

? Clock frequencies up to 83 MHz (8ns access time)

? Two independent FIFOs buffer data between one bidirectional

36-bit port and two unidirectional 18-bit ports (Port C receives

and Port B transmits)

? 18-bit (word) and 9-bit (byte) bus sizing of 18 bits (word) on

Ports B and C

? Select IDT Standard timing (using EFA , EFB , FFA , and FFC flag

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

IRA, and IRC flag functions)

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

five default offsets (8, 16, 64, 256 and 1024)