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DDR110-27T7RL-DDR110-56T7RL
DOUBLE DATA RATE TERMINATION NETWORK WITH DISABLE SWITCH
DDR110-xxT7RLDOUBLE DATA RATE TERMINATION
NETWORK WITH DISABLE SWITCH 10 bits Termination Network. Integrated Termination resistor (Rs) Enable input TTL level compatible Impedance matching± 2% (A0-B0/ An-Bn) Optimized Low Crosstalk for parallel
Terminationto Vtt. Optimized Low propagation delay
FEATURES AND BENEFITSThe DDR110 provides10 bits resistor Networkto used for SDR/DDR (double data rate) SDRAM
bus Termination.
This device hasa series resistors (Rs)to reduce
signal reflection noise. This eliminates the needfor
external terminating resistors.
The DDR Termination Nerworkis enabled with the
output Enable pin (OE). When OEis HIGH Inputs
are connectedto Outputs (A connectedto B).
When OEis LOW every inputs are in High
impedance state (Hi-Z).
The DDR Termination Networkisa bidirectional
device when the internal switchis ON. When the
switchis OFF, the device will block currentin both
directions.
This deviceis made using ST IPADTM (Integrated
Passive& Active devices) technology.
DESCRIPTIONASD™
IPAD™ Computer
DDR (double data rate) Termination Network used
on. Motherboard Workstation Server Notebooks
MAIN APPLICATION
DDR110-xxT7RL(1) Open collector outputwith10k pull-up resistorto5Vis recommendedfor typicalOE signal.
RECOMMENDED OPERATING CONDITIONS (Tamb= 25°C)
ABSOLUTE MAXIMUM RATINGS (Tamb= 25°C)
FUNCTION TABLE
DDR110-xxT7RL
APPLICATION SCHEMATICS
ELECTRICAL CHARACTERISTICS (Tamb= 25°C- Vcc= 5V)
DDR110-xxT7RL
PIN ASSIGNEMENT
OTHER INFORMATION
DDR110-xxT7RLInformationfurnishedis believedtobe accurate andreliable. However,STMicroelectronicsassumesno responsibility fortheconsequencesof
useof such informationnor forany infringementof patentsor other rights ofthird parties whichmay result fromits use.Nolicenseisgrantedby
implicationor otherwise under any patentor patent rightsof STMicroelectronics. Specifications mentionedinthis publicationare subjectto
change without notice. This publication supersedesand replacesall information previously supplied.
STMicroelectronics productsarenot authorizedforuseas critical componentsinlife support devicesor systems without express writtenap-
provalof STMicroelectronics.
TheST logoisa registered trademarkof STMicroelectronics 2001 STMicroelectronics- Printedin Italy-All rights reserved.
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http:// Epoxy meets UL94- V0 standard
PACKAGE MECHANICAL DATATSSOP-24
FOOTPRINT
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