DDR110-XXT7RL Datasheet, PDF (1/5 Pages) STMicroelectronics – DOUBLE DATA RATE TERMINATION NETWORK WITH DISABLE SWITCH

®
ASD™
IPAD™ Computer
DDR110-xxT7RL
DOUBLE DATA RATE TERMINATION
NETWORK WITH DISABLE SWITCH
MAIN APPLICATION
DDR (double data rate) Termination Network used
on.
s Motherboard
s Workstation
s Server
s Notebooks
DESCRIPTION
The DDR110 provides 10 bits resistor Network to
be used for SDR/DDR (double data rate) SDRAM
bus Termination.
This device has a series resistors (Rs) to reduce
signal reflection noise. This eliminates the need for
external terminating resistors.
The DDR Termination Nerwork is enabled with the
output Enable pin (OE). When OE is HIGH Inputs
are connected to Outputs (A connected to B).
When OE is LOW every inputs are in High
impedance state (Hi - Z).
The DDR Termination Network is a bidirectional
device when the internal switch is ON. When the
switch is OFF, the device will block current in both
directions.
This device is made using ST IPAD^TM (Integrated
Passive & Active devices) technology.
FEATURES AND BENEFITS
s 10 bits Termination Network.
s Integrated Termination resistor (Rs)
s Enable input TTL level compatible
s Impedance matching ± 2% (A0-B0 / An-Bn)
s Optimized Low Crosstalk for parallel
Termination to Vtt.
s Optimized Low propagation delay
May 2001 - Ed: 2
24
1
12
TSSOP24
1 VSS
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
12 OE
Rs
Rs
Rs
Rs
Rs
Rs
Rs
Rs
Rs
Rs
GATE
CONTROL
VCC 24
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
NC
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