EDX1032BBBG-3C-F Datasheet, PDF (1/85 Pages) Elpida Memory – 1G bits XDR DRAM

DATA SHEET
1G bits XDR^ DRAM
EDX1032BBBG (32M words × 32 bits)
Overview
The EDX1032BBBG is 1G bits XDR^™ DRAM organized as
32M words × 32 bits. They are general-purpose high-perfor-
mance memory devices suitable for use in a broad range of
applications.
The use of Differential Rambus Signaling Level (DRSL) tech-
nology permits 3200 Mb/s transfer rates for EDX1032BBBG,
while using conventional system and board design technolo-
gies.
The EDX1032BBBG device is capable of sustained data trans-
fers of 12800 MB/s.
XDR DRAM device architecture allows the highest sustained
bandwidth for multiple, interleaved randomly addressed mem-
ory transactions. The highly-efficient protocol yields over 95%
utilization while allowing fine access granularity. The device’s
eight banks support up to four interleaved transactions.
The EDX1032BBBG is packaged in 150-ball FBGA, compati-
ble with Rambus XDR DRAM pin configuration.
Features
• Highest pin bandwidth available
Octal Data Rate (ODR) Signaling, 3200 Mb/s
• Bi-directional differential RSL (DRSL)
- Flexible read/write bandwidth allocation
- Minimum pin count
• Programmable on-chip termination
-Adaptive impedance matching
-Reduced system cost and routing complexity
• Low power PLL/DLL design
• Highest sustained bandwidth per DRAM device
• EDX1032BBBG:12800 MB/s sustained data rates
• Eight banks: bank-interleaved transactions at full
bandwidth
• Dynamic request scheduling
• Early-read-after-write support for maximum efficiency
• Zero overhead refresh
• Dynamic width control
• EDX1032BBBG supports × 32, × 16, × 8 and × 4
mode
• Low latency
• 2.50 ns request packets
• Point-to-point data interconnect for fastest possible
flight time
• Support for low-latency, fast-cycle cores
• Low power
• 1.5V VDD
• Programmable small-swing I/O signaling (DRSL)
• Low power PLL/DLL design
• Powerdown self-refresh support
• Per pin I/O powerdown for narrow-width operation
Doc. No. E1819E20 (Ver. 2.0)
Date Published March 2012 (K) Japan
Printed in Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2011-2012