INTEGRATED CIRCUITS
NE57814 DDR memory termination regulator with standby mode and enhanced efficiency
Product data Sup...
INTEGRATED CIRCUITS
NE57814 DDR memory termination
regulator with standby mode and enhanced efficiency
Product data Supersedes data of 2003 Jan 22 2003 Apr 03
Philips Semiconductors
Philips Semiconductors
Product data
DDR memory termination
regulator with standby mode and enhanced efficiency
NE57814
DESCRIPTION
The NE57814 is designed to provide power for termination of a DDR memory bus. It significantly reduces parts count, board space, and overall system cost over previous switching solutions. The NE57814 has an independent power source pin (VD) for further reducing the operational power and a standby low-power mode for energy-sensitive portable applications. The DDR terminator
regulator provides a very accurate reference (RefOut) and termination voltage (VTT) which is one-half of the RAM supply voltage over wide range of current demand.
HSO8 (TOP)
HSO8 (BOTTOM)
FEATURES
Fast transient response time Over-temperature protection Over-current protection Commercial (0 °C to 70 °C) temperature range High bandwidth drivers minimize requirement for output hold-up
filter capacitors
APPLICATIONS
Internal divider maintains termination voltage at 1/2 memory
supply voltage
RefOut output pin for other memory and control components
Laptop computers Desktop microcomputer systems Workstations Set-top boxes Servers Networking routers and switches Video display systems Personal video recorders Game machines Embedded systems
SIMPLIFIED SYSTEM ...