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HYB18T512400AF Datasheet, PDF (3/58 Pages) Infineon Technologies AG – 512-Mbit DDR2 SDRAM | |||
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Internet Data Sheet
1
Overview
HYB18T512[40/80/16]0AF(L)â[3/3S/3.7/5]
512-Mbit DDR2 SDRAM
This chapter gives an overview of the 512-Mbit DDR2 SDRAM product family and describes its main characteristics.
1.1
Features
The 512-Mbit DDR2 SDRAM offers the following key features:
⢠1.8 V ± 0.1 V Power Supply 1.8 V ± 0.1 V (SSTL_18)
compatible I/O
⢠DRAM organisations with 4, 8 and 16 data in/outputs
⢠Double Data Rate architecture: two data transfers per
clock cycle, four internal banks for concurrent operation
⢠CAS Latency: 3, 4 and 5
⢠Burst Length: 4 and 8
⢠Differential clock inputs (CK and CK)
⢠Bi-directional, differential data strobes (DQS and DQS) are
transmitted / received with data. Edge aligned with read
data and center-aligned with write data.
⢠DLL aligns DQ and DQS transitions with clock
⢠DQS can be disabled for single-ended data strobe
operation
⢠Commands entered on each positive clock edge, data and
data mask are referenced to both edges of DQS
⢠Data masks (DM) for write data
⢠Posted CAS by programmable additive latency for better
command and data bus efficiency
⢠Off-Chip-Driver impedance adjustment (OCD) and On-
Die-Termination (ODT) for better signal quality.
⢠Auto-Precharge operation for read and write bursts
⢠Auto-Refresh, Self-Refresh and power saving Power-
Down modes
⢠Average Refresh Period 7.8 µs at a TCASE lower than
85 °C, 3.9 µs between 85 °C and 95 °C
⢠High Temperature Self Refresh Mode is supported
⢠Full and reduced Strength Data-Output Drivers
⢠1KByte page size for à 4 & à 8, 2 KByte page size for à 16
⢠Lead-free Packages: P-TFBGA-60 for à 4 & à 8
components, P-TFBGA-84 for à 16 components
⢠RoHS Compliant Products1)
Product Type Speed Code
â3
Speed Grade
DDR2â667C 4â4â4
Max. Clock Frequency @CL5
@CL4
@CL3
Min. RAS-CAS-Delay
Min. Row Precharge Time
Min. Row Active Time
Min. Row Cycle Time
fCK5 333
fCK4 333
fCK3 200
tRCD 12
tRP 12
tRAS 45
tRC 57
TABLE 1
Performance table for â3(S)
â3S
Unit
DDR2â667D 5â5â5
333
266
200
15
15
45
60
â
MHz
MHz
MHz
ns
ns
ns
ns
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. 1.71, 2007-01
3
03062006-CPCN-4867
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