EDE1108AJBG-8E-F Datasheet, PDF (1/75 Pages) Elpida Memory – 1G bits DDR2 SDRAM

DATA SHEET
1G bits DDR2 SDRAM
EDE1108AJBG (128M words × 8 bits)
EDE1116AJBG (64M words × 16 bits)
Specifications
• Density: 1G bits
• Organization
 16M words × 8 bits × 8 banks (EDE1108AJBG)
 8M words × 16 bits × 8 banks (EDE1116AJBG)
• Package
 60-ball FBGA (EDE1108AJBG)
 84-ball FBGA (EDE1116AJBG)
 Lead-free (RoHS compliant) and Halogen-free
• Power supply: VDD, VDDQ = 1.8V ± 0.1V
• Data rate
 800Mbps (max.)
• 1KB page size (EDE1108AJBG)
 Row address: A0 to A13
 Column address: A0 to A9
• 2KB page size (EDE1116AJBG)
 Row address: A0 to A12
 Column address: A0 to A9
• Eight internal banks for concurrent operation
• Interface: SSTL_18
• Burst lengths (BL): 4, 8
• Burst type (BT):
 Sequential (4, 8)
 Interleave (4, 8)
• /CAS Latency (CL): 3, 4, 5, 6
• Precharge: auto precharge option for each burst
access
• Driver strength: normal, weak
• Refresh: auto-refresh, self-refresh
• Refresh cycles: 8192 cycles/64ms
 Average refresh period
7.8µs at 0°C ≤ TC ≤ +85°C
3.9µs at +85°C < TC ≤ +95°C
• Operating case temperature range
 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
• Programmable RDQS, /RDQS output for making × 8
organization compatible to × 4 organization
• /DQS, (/RDQS) can be disabled for single-ended
Data Strobe operation
• Off-Chip Driver (OCD) impedance adjustment is not
supported.
Document No. E1732E21 (Ver.2.1)
Date Published September 2011 (K) Japan
Printed in Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2010-2011