Datasheet Details
Part number:
IS46DR32801B, IS43DR32801B
Manufacturer:
ISSI
File Size:
1.19 MB
Description:
256mb ddr2 dram.
Note:
This datasheet PDF includes multiple part numbers: IS46DR32801B, IS43DR32801B.
Please refer to the document for exact specifications by model.
IS46DR32801B, IS43DR32801B, 256Mb DDR2 DRAM
ISSI's 256Mb DDR2 SDRAM uses a double-data-rate architecture to achieve high-speed operation.
The double-data rate architecture is essentially a 4n-prefetch architecture, with an interface designed to transfer two data words per clock cycle at the I/O balls.
The 256Mb DDR2 SDRAM is provided in a wid
IS46DR32801B Features
* Vdd = 1.8V ±0.1V, Vddq = 1.8V ±0.1V
* JEDEC standard 1.8V I/O (SSTL_18-compatible)
* Double data rate interface: two data transfers per clock cycle
* Differential data strobe (DQS, DQS)
* 4-bit prefetch architecture
* On chip DLL to align DQ and DQS
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