General Description

The AMIC Direct Bus Alternation™ (DBA™ ) SRAM family employs high-speed, low-power CMOS designs using an advanced CMOS process. The A67L8316, A67L8318, A67L7332, A67L7336 SRAMs integrate a 256K X 16, 256K X 18, 128K X 32 or 128K X 36 SRAM core with advanced synchronous peripheral circuitry and a 2-bit burst counter. These SRAMs are optimized for 100 percent bus utilization without the insertion of any wait cycles during Write Read alternation. The positive edge triggered single clock input (CLK) controls all synchronous inputs passing through the registers.

Features

● Fast access time: 4.0/4.2/4.5/5.0 ns (143,133,117,100MHz)

● Direct Bus Alternation between READ and WRITE cycles allows 100 bus utilization

● Signal +3.3V ±5 power supply

● Individual Byte Write control capability

● Clock enable (CEN) pin to enable clock and suspend operations

● Clock-controlled and registered address, data and control signals

● Registered output for pipelined applications

● Three separate chip enables allow wide range of options for CE control, address pipelining

● Internally self-timed write cycle

● Selectable BURST mode (Linear or Interleaved)

● SLEEP mode (ZZ pin) provided

● Available in 100 pin LQFP package