Qimonda HYB18T256161BF 256Mbit x16 DDR2 SDRAM RoHS Compliant


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Product Description

The 256-MB DDR2 DRAM is a high-speed Double-Data-Rate-Two CMOS Synchronous DRAM device containing 268,435,456bits and internally configured as a quad bank DRAM. The 256-MB device is organized as 4 Bit×16 I/O×4 banks chip. These synchronous devices achieve high speed transfer rates starting at 700 MB/sec/pin for general applications. The device is designed to comply with all DDR2 DRAM key features: 1. posted CAS with additive latency, 2. write latency = read latency - 1, 3. normal and weak strength data-output driver, 4. Off-Chip Driver (OCD) impedance adjustment, 5. On-Die Termination (ODT) function. All of the control and address inputs are synchronized with a pair of externally supplied differential clocks. Inputs are latched at the cross point of differential clocks (CK rising and Ck falling). All I/O's are synchronized with a single ended DQS or differential DQS-DQS pair in a source synchronous fashion. A 15-bit address bus is used to convey row, column and bank address information in a RAS-CAS multiplexing style. An Auto-Refresh and Self-Refresh mode is provided along with various power-saving power-down modes. The functionality described and the timing specifications included in this data sheet are for the DLL Enabled mode of operation. The DDR2 SDRAM is available in P-TFBGA package.

Additional Information
Additional Information
Manufacturer Part # HYB18T256161BF
Additional Part Number(s) No
Fits Models No
Item Condition New
Cosmetic Condition No
Condition Remarks No
Warranty No
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