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Product Details
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DDR2 SDRAM
**The 512Mb DDR2 SDRAM is organized as a 32Mbit x 4 I/Os x 4banks, 16Mbit
x 8 I/Os x 4 banks or 8Mbit x 16 I/Os x 4 banks device. This synchronous device achieves high speed double**
data-rate transfer rates of up to 533Mb/sec/pin (DDR2-533) for
general applications.
The chip is designed to comply with the following key DDR2 SDRAM features such as posted CAS with additive latency, write latency = read latency -1, Off-Chip Driver(OCD) impedance
adjustment and On Die Termination.
All of the control and address inputs are synchronized with a pair of externally supplied differential clocks. Inputs are latched at the crosspoint of differential clocks (CK rising and Kfalling). All I/Os are synchronized with a pair ofbidirectional strobes (DQS and DQS) in a source synchronous fashion. The address bus is used to convey row, column, and bank address information in a RAS/CASmultiplexing style. For example, 512Mb(x4) device receive 14/11/2 addressing.
The 512Mb DDR2 device operates with a single 1.8V ± 0.1V power supply and 1.8V ± 0.1V VDDQ.
The 512Mb DDR2 device is available in 60ball FBGAs(x4/x8) and in 84ball FBGAs(x16).• JEDEC standard 1.8V ± 0.1V Power Supply
• VDDQ = 1.8V ± 0.1V
• 200 MHz fCKfor 400Mb/sec/pin, 267MHz fCKfor 533Mb/sec/pin
• 4 Banks
• Posted CAS
• Programmable CASLatency: 3, 4, 5
• Programmable Additive Latency: 0, 1 , 2 , 3 and 4
• Write Latency(WL) = Read Latency(RL) -1
• Burst Length: 4 , 8(Interleave/nibble sequential)
• Programmable Sequential / Interleave Burst Mode
• Bi-directional DifferentialData-Strobe (Single-ended data strobe is an optional feature)
• Off-Chip Driver(OCD) Impedance Adjustment
• On Die Termination
• Special Function Support
-High Temperature Self-Refresh rate enable
• Average Refresh Period 7.8us at lower than TCASE 85°C, 3.9us at 85°C < TCASE <95 °C
• Package: 60ball FBGA - 128Mx4/64Mx8 , 84ball FBGA - 32Mx16
• All of Lead-free products are compliant for RoHS -
Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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- Datasheet: Download ZCC3406
- Chipdatas Part: CD88-ZCC3406
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 08:51 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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