特性 Features

◆ True Dual-Ported memory cells which allow simultaneous

access of the same memory location

◆ High-speed clock to data access

– Commercial: 9/12/15ns (max.)

– Industrial: 12ns (max.)

◆ Low-power operation

– IDT709279/69S

Active: 950mW (typ.)

Standby: 5mW (typ.)

– IDT709279/69L

Active: 950mW (typ.)

Standby: 1mW (typ.)

◆ Flow-Through or Pipelined output mode on either port via

the FT/PIPE pin

◆ Dual chip enables allow for depth expansion without

additional logic

◆ Counter enable and reset features

◆ Full synchronous operation on both ports

– 4ns setup to clock and 1ns hold on all control, data, and

address inputs

– Data input, address, and control registers

– Fast 9ns clock to data out in the Pipelined output mode

– Self-timed write allows fast cycle time

– 15ns cycle time, 67MHz operation in Pipelined output mode

◆ Separate upper-byte and lower-byte controls for

multiplexed bus and bus matching compatibility

◆ TTL- compatible, single 5V (±10) power supply

◆ Industrial temperature range (–40°C to +85°C) is

available for selected speeds

◆ Available in a 100-pin Thin Quad Flatpack (TQFP) package

◆ Green parts available. See ordering information