Datasheet

Hardware Intel® RAID Portable Cache Module AXXRPCM3 Technical Product Specification
Revision 1.1
Intel order number E20184-002
3
2. Hardware
The Intel
®
RAID Portable Cache Module AXXRPCM3 is a 32 M x 72-bit, 8 chip, 244-pin Mini
DIMM module consisting of the following:
 Five 32 M x16 (FBGA) DDR2 SDRAM modules
 Universal bus driver register
 PLL clock driver
 256 x 8 EEPROM for serial presence detect
The Intel
®
RAID Portable Cache Module AXXRPCM3 conforms to JEDEC (Joint Electron
Device Engineering Council) specifications and has battery backup circuitry.
The Intel
®
RAID Portable Cache Module AXXRPCM3 has the following features:
 RoHS compliant (Restriction of Hazardous Substances Directive compliant)
 PC2-5300 compliant
 JEDEC-Standard 244-pin Mini Dual Inline Memory Module (Mini-DIMM)
 Registered
 Based on 32 M x 8 DDR2 (FBGA) SDRAM components
 Programmable CAS latency
 Programmable additive latency
 Write latency = read latency minus 1
 Off-chip driver impedance adjustment (OCD)
 On-die termination (ODT)
 2 K page size for x16
 VDD = VDDQ = 1.8 V +/-0.1 V
 7.8 µs maximum average periodic refresh interval
 Serial presence detect (SPD)
 SSTL18 compatible inputs and outputs
 One external bank
 Four internal memory banks
 Pure power and ground planes
 Gold PCB connector
The battery pack is rated at a nominal voltage of 3.7 V with a typical capacity of 1350 mAH.