EDE5108AHBG Datasheet, PDF (1/75 Pages) Elpida Memory – 512M bits DDR2 SDRAM

PRELIMINARY DATA SHEET
512M bits DDR2 SDRAM
EEDDEE55111068AAHHBBGG((3624MMwwoorrddss××186bbititss)) _{Specifications}
• Density: 512M bits
• Organization
E 16M words × 8 bits × 4 banks (EDE5108AHBG)
 8M words × 16 bits × 4 banks (EDE5116AHBG)
• Package
 60-ball FBGA (EDE5108AHBG)
O_{ 84-ball FBGA (EDE5116AHBG)}
 Lead-free (RoHS compliant)
• Power supply: VDD, VDDQ = 1.8V ± 0.1V
• Data rate: 800Mbps/667Mbps/533Mbps/400Mbps
(max.)
L _{• 1KB page size (EDE5108AHBG)}
 Row address: A0 to A13
 Column address: A0 to A9
• 2KB page size (EDE5116AHBG)
 Row address: A0 to A12
P _{ Column address: A0 to A9}
• Four internal banks for concurrent operation
• Interface: SSTL_18
• Burst lengths (BL): 4, 8
r _{• Burst type (BT):}
 Sequential (4, 8)
o ^{ Interleave (4, 8)}
• /CAS Latency (CL): 3, 4, 5, 6
• Precharge: auto precharge option for each burst
access
d • Driver strength: normal/weak
• Refresh: auto-refresh, self-refresh
• Refresh cycles: 8192 cycles/64ms
 Average refresh period
u _{7.8µs at 0°C ≤ TC ≤ +85°C}
3.9µs at +85°C < TC ≤ +95°C
• Operating case temperature range
ct ^{ TC = 0°C to +95°C}
Features
• Double-data-rate architecture; two data transfers per
clock cycle
• The high-speed data transfer is realized by the 4 bits
prefetch pipelined architecture
• Bi-directional differential data strobe (DQS and /DQS)
is transmitted/received with data for capturing data at
the receiver
• DQS is edge-aligned with data for READs; center-
aligned with data for WRITEs
• Differential clock inputs (CK and /CK)
• 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
• Data mask (DM) for write data
• Posted /CAS by programmable additive latency for
better command and data bus efficiency
• Off-Chip-Driver Impedance Adjustment and On-Die-
Termination for better signal quality
• Programmable RDQS, /RDQS output for making × 8
organization compatible to × 4 organization
• /DQS, (/RDQS) can be disabled for single-ended
Data Strobe operation
Document No. E0933E30 (Ver. 3.0)
Date Published September 2006 (K) Japan
Printed in Japan
URL: http://www.elpida.com
This product became EOL in June, 2010.
Elpida Memory, Inc. 2006