Datasheet Details
Part number:
IS61DDSB251236C, IS61DDSB21M18C
Manufacturer:
ISSI
File Size:
954.42 KB
Description:
18mb ddr-ii sio synchronous sram.
Note:
This datasheet PDF includes multiple part numbers: IS61DDSB251236C, IS61DDSB21M18C.
Please refer to the document for exact specifications by model.
IS61DDSB251236C, IS61DDSB21M18C, 18Mb DDR-II SIO SYNCHRONOUS SRAM
The 18Mb IS61DDSB251236C and IS61DDSB21M18C are synchronous, high-performance CMOS static random access memory (SRAM) devices.
These SRAMs have a separate I/O bus.
The rising edge of K clock initiates the read/write operation, and all internal operations are self-timed.
Refer to the Timing Reference
IS61DDSB251236C Features
* 512Kx36 and 1Mx18 configuration available.
* On-chip delay-locked loop (DLL) for wide data valid window.
* Seperate I/O read and write ports.
* Synchronous pipeline read with self-timed late write operation.
* Double Data Rate (DDR) interface for read and write input ports.
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