Corsair 2GB DDR2 667MHz CM72DD2048R-667

The CM72DD2048R is a DDR2 Dual Inline Memory Module (DIMM), designed
for applications in which both per formance and density are critical. This DIMM
includes Error Checking and Correcting (ECC) for maximum reliability, and has
registered address and control signals to enable fully confi gured systems. These
modules are constructed using 1 GBit SDRAMs, and are fully compliant with
JEDEC specifi cations.
These DIMMs are constructed using 128MB x 8 SDRAMs in BGA packages.
The module also includes an EEPROM to support Serial Presence Detect (SPD)
requirements. Decoupling capacitors are mounted on the printed circuit board
for each SDRAM device, and On-Die Termination is prodived on all lines. The
synchronous design of these Corsair SDRAM DIMMs allows precise cycle control
with the use of the system clock. I/O transactions are possible on every clock
cycle. The high clock frequency and high density of this device enable a high
level of performance to be achieved in advanced workstations and servers.

- 240-pin, dual in-line memory module (DIMM)
- Ultra high density using 1 GBit SDRAM devices
- ECC 1-bit error detection and correction
- Registered inputs with one-clock delay
- Phase-locked loop (PLL) clock driver to reduce loading
- 256 MB x 72
- JEDEC standard 1.8V I/O (SSTL_18-compatible)
- Four-bit prefetch architecture
- Off -chip driver (OCD) impedance calibration
- On-die termination (ODT)
- Low profi le (1.2), ideal for 1U rack mount servers

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