Under a licensing arrangement with US-based Rambus, Inc. (http://www.rambus.com/xdr/), Elpida was the first to commercialize a 1-gigabit XDR DRAM based on x32-bit configuration. The XDR product features an ultra-fast speed of 4GHz for a 16-gigabytes/second data transfer rate with a single device, making it ideal for such high-bandwidth, high-performance full HD-capable applications as game consoles, digital televisions and Blu-ray disc recorders and players.
Features
Highest pin bandwidth
- 4.0/3.2Gbps Octal Data Rate (ODR) signaling
4.0/3.2GHz data rate, octuple the data transfer rate of 500/400MHz system clock - Bi-directional differential RSL (DRSL)
Flexible read / write bandwidth allocation
Minimum pin count - On-chip termination
Reduced system cost and routing complexity
Low power
- 1.5V VDD
- Small-swing I/O signaling (DRSL) (200mV)
- Power-down support
Highest sustained bandwidth per DRAM device
- 16.0GB/s (4.0D), 12.8GB/s (3.2C) peak data transfer rate (x32)
- 8 banks:
Bank-interleaved transactions at full bandwidth - Dynamic request scheduling
- Early-read-after-write support for maximum efficiency
- Zero overhead refresh
Package
- 104-ball FBGA (x16)
Ball-pitch 1.27mm / 0.8mm - 150-ball FBGA (x32)
Ball-pitch 1.0mm / 1.0mm
Lineup
| wordxbit | Int. Banks | Grade | Part Number | Class | Supply Voltage | Refresh Cycles | Rev. | Package | Datasheet | Simulation Model | Product Status | Remark |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 64M x 16 | 8 | 4.0D | EDX1016BASE | 4DA2-F | 1.5V+/-0.075V | 16ms | A | 104-FBGA | Ask | Ask | MP | Lead & Halogen Free |
| 3.2C | 3CA2-F | Ask | MP | |||||||||
| 32M x 32 | 8 | 3.2C | EDX1032BASE | 3CA2-F | 1.5V+/-0.075V | 16ms | A | 150-FBGA | Ask | Ask | MP | Lead & Halogen Free |
*Product Status: UD:Under Development, ES:Engineering Sample, MP:Mass Production, Ask:Contact Elpida sales to check the production status