ISSI

ISSI’s 512Mb Synchronous DRAM achieves high-speed data transfer using pipeline architecture. All inputs and outputs signals refer to the rising edge of the clock input.

• Clock frequency: 200, 166, 143 MHz
• Fully synchronous; all signals referenced to a positive clock edge
• Internal bank for hiding row access/precharge
• Power supply: Vdd/Vddq = 2.3V-3.6V
• IS42/45SxxxxxF – Vdd/Vddq = 3.3V
• IS42/45RxxxxxF – Vdd/Vddq = 2.5
• LVTTL interface
• Programmable burst length – (1, 2, 4, 8, full page)
• Programmable burst sequence: Sequential/Interleave
• Auto Refresh (CBR)
• Self Refresh
• 8K refresh cycles every 64 ms
• Random column address every clock cycle
• Programmable CAS latency (2, 3 clocks)
• Burst read/write and burst read/single write operations capability
• Burst termination by burst stop and precharge command
• Packages: x8/x16: 54-pin TSOP-II, 54-ball TF-BGA (x16 only)
• Temperature Range: Commercial (0o C to +70o C) Industrial (-40o C to +85o C) Automotive, A1 (-40o C to +85o C) Automotive, A2 (-40o C to +105o C)