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HYB25D512400C Datasheet, PDF (3/37 Pages) Qimonda AG – DDR SDRAM | |||
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Internet Data Sheet
1
Overview
HYB25D512[400/160/800]C[E/T/F/C](L)
512-Mbit Double-Data-Rate SDRAM
This chapter gives an overview of the 512-Mbit Double-Data-Rate SDRAM product family and describes its main
characteristics.
1.1
Features
⢠Double data rate architecture: two data transfers per clock
cycle
⢠Bidirectional data strobe (DQS) is transmitted and
received with data, to be used in capturing data at the
receiver
⢠DQS is edge-aligned with data for reads and is center-
aligned with data for writes
⢠Differential clock inputs (CK and CK)
⢠Four internal banks for concurrent operation
⢠Data mask (DM) for write data
⢠DLL aligns DQ and DQS transitions with CK transitions
⢠Commands entered on each positive CK edge; data and
data mask referenced to both edges of DQS
⢠Burst Lengths: 2, 4, or 8
⢠CAS Latency: 2, 2.5, 3
⢠Auto Precharge option for each burst access
⢠Auto Refresh and Self Refresh Modes
⢠RAS-lockout supported tRAP=tRCD
⢠7.8 µs Maximum Average Periodic Refresh Interval
⢠2.5 V (SSTL_2 compatible) I/O
⢠VDDQ = 2.5 V ± 0.2 V
⢠VDD = 2.5 V ± 0.2 V
⢠P-TFBGA-60-11 package
⢠P-TSOPII-66-1 package
⢠RoHS Compliant Products1)
Part Number Speed Code
Speed Grade
Max. Clock Frequency
Component
@CL3
@CL2.5
@CL2
fCK3
fCK2.5
fCK2
â5
DDR400B
200
166
133
TABLE 1
Performance for â5 and â6
â6
Unit
DDR333B
166
166
133
â
MHz
MHz
MHz
1) RoHS Compliant Product: Restriction of the use of certain hazardous substances (RoHS) in electrical and electronic equipment as defined
in the directive 2002/95/EC issued by the European Parliament and of the Council of 27 January 2003. These substances include mercury,
lead, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated biphenyl ethers.
Rev. 1.31, 2006-09
3
03292006-3TFJ-HNV3
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