ISSI IS42S32800D-7TL, SDRAM 256Mbit Surface Mount, 143MHz, 86-Pin TSOP

ISSI SDR SDRAM range offers synchronous interface with programmable CAS Latency (2/3 clocks). High speed data transfer is achieved using the pipeline process and the Synchronous DRAM SDR series offer burst read/write and burst read/single write making them ideally for use in computers applications. ISSI’s SDR SDRAM devices come in a range of different organisations and memory sizes, operating on a 3.3V power supply.

LVTTL interface
Input/output signals refer to the rising edge of the clock input
Programmable burst sequence: Sequential/Interleave; Programmable burst length
Random column address every clock cycle
Self-refresh and Auto Refresh mode