© Semiconductor Components Industries, LLC, 2006
November, 2006 − Rev. 8
1 Publication Order Number:
MC10E411/D
MC10E411
5VECL 1:9 Differential
PECL/NECL RAMBus Clock
Buffer
Description
The MC10E411 is a low skew 1-to-9 differential driver, designed
with clock distribution in mind. The MC10E411’s function and
performance are similar to the popular MC10E111, with the added
feature of 1.2 V output swings.
The output voltage swing of the E411 is larger than a standard ECL
swing. The 1.2 V output swings provide a signal which can be AC
coupled into RAMBus compatible input loads. The larger output
swings are produced by lowering the V
OL
of the device. With the
exception of the lower V
OL
, the E411 is identical to the MC10E111.
Note that the larger output swings eliminate the possibility of
temperature compensated outputs, thus the E411 is only available in
the 10E style of ECL. In addition, because the V
OL
is lower than
standard ECL, the outputs cannot be terminated to −2.0 V. This data
sheet provides a few termination alternatives.
The device TPD is affected by the quantity of output pairs
terminated with minimum occurring with only one output pair and
increasing about 10 − 20 ps for all output pairs. Relative skew
distribution is not affected as more pairs are terminated, but the
increased TPD does shift the entire distribution. Unused output pairs
should be left unterminated (open) to reduce power and switching
noise.
The V
BB
pin, an internally generated voltage supply, is available to
this device only. For single-ended input conditions, the unused
differential input is connected to V
BB
as a switching reference voltage.
V
BB
may also rebias AC coupled inputs. When used, decouple V
BB
and V
CC
via a 0.01 mF capacitor and limit current sourcing or sinking
to 0.5 mA. When not used, V
BB
should be left open.
Features
• 200 ps Part-to-Part Skew
• 50 ps Output-to-Output Skew
• Differential Design
• V
BB
Output
• Voltage Compensated Outputs
• PECL Mode Operating Range:
V
CC
= 4.5 V to 5.5 V with V
EE
= 0 V
• NECL Mode Operating Range:
V
CC
= 0 V with V
EE
= −4.5 V to −5.5 V
• Internal Input 50 kW Pulldown Resistors
• ESD Protection: Human Body Model; > 2 kV,
Machine Model; > 200 V
• Meets or Exceeds JEDEC Spec EIA/JESD78
IC Latchup Test
• Moisture Sensitivity Level: Pb = 1; Pb−Free = 3
For Additional Information, see Application Note
AND8003/D
• Flammability Rating: UL 94 V−0 @ 1.125 in,
Oxygen Index: 28 to 34
• Transistor Count = 180 devices
• Pb−Free Packages are Available*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING DIAGRAM*
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
PLCC−28
FN SUFFIX
CASE 776
http://onsemi.com
*For additional marking information, refer to
Application Note AND8002/D.
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
ORDERING INFORMATION
MC10E411FNG
AWLYYWW
128
