MC10H646FN ON Semiconductor, MC10H646FN Datasheet

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MC10H646FN

Manufacturer Part Number
MC10H646FN
Description
IC CLOCK DRVR DISTR 1:8 28-PLCC
Manufacturer
ON Semiconductor
Type
Fanout Buffer (Distribution)r
Datasheet

Specifications of MC10H646FN

Number Of Circuits
1
Ratio - Input:output
2:8
Differential - Input:output
Yes/No
Input
PECL, TTL
Output
TTL
Frequency - Max
80MHz
Voltage - Supply
4.75 V ~ 5.25 V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-PLCC
Frequency-max
80MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

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Part Number
Manufacturer
Quantity
Price
Part Number:
MC10H646FN
Manufacturer:
ON Semiconductor
Quantity:
10 000
Part Number:
MC10H646FN
Manufacturer:
ON/安森美
Quantity:
20 000
Part Number:
MC10H646FNG
Manufacturer:
ON Semiconductor
Quantity:
10 000
Part Number:
MC10H646FNG
Manufacturer:
ON/安森美
Quantity:
20 000
Part Number:
MC10H646FNR2
Manufacturer:
ON Semiconductor
Quantity:
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Part Number:
MC10H646FNR2G
Manufacturer:
ON Semiconductor
Quantity:
10 000
MC10H646, MC100H646
PECL/TTL−TTL 1:8 Clock
Distribution Chip
Description
clock driver. Devices in the ON Semiconductor H646 translator series
utilize the 28−lead PLCC for optimal power pinning, signal flow
through and electrical performance. The single supply H646 is similar
to the H643, which is a dual supply 1:8 version of the same function.
transmission lines. Special techniques were used to match the HIGH
and LOW output impedances to about 7.0 W. This simplifies the
choice of the termination resistor for series terminated applications. To
match the HIGH and LOW output impedances, it was necessary to
remove the standard I
take care in preventing an output short to ground as the part will be
permanently damaged.
60 MHz and 66 MHz Intel Pentium® Microprocessor. The device has
no PLL components, which greatly simplifies its implementation into
a digital design. The eight copies of the clock allows for
point−to−point clock distribution to simplify board layout and
optimize signal integrity.
skew PECL clocks from the backplane and distributing it to TTL loads
on a daughter board. When used in conjunction with the
MC10/100E111, very low skew, very wide clock trees can be
designed. In addition, a TTL level clock input is provided for
flexibility. Note that only one of the inputs can be used on a single
chip. For correct operation, the unused input pins should be left open.
state when a logic 0 is applied.
50 W transmission lines each. This capability allows the H646 to drive
up to 16 different point−to−point clock loads. Refer to the
Applications section for a more detailed discussion in this area.
The 100H version is compatible with 100K levels.
Features
*For additional information on our Pb−Free strategy and soldering details, please
© Semiconductor Components Industries, LLC, 2006
November, 2006 − Rev. 5
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
The MC10H/100H646 is a single supply, low skew translating 1:8
The H646 was designed specifically to drive series terminated
The H646 device meets all of the requirements for driving the
The H646 provides differential PECL inputs for picking up LOW
The Output Enable pin forces the outputs into a high impedance
The output buffers of the H646 can drive two series terminated,
The 10H version is compatible with MECL™ 10H ECL logic levels.
PECL/TTL−TTL Version of Popular ECLinPS™ E111
Low Skew
Guaranteed Skew Spec
Tri−State Enable
Differential Internal Design
V
BB
Output
OS
limiting resistor. As a result, the user should
1
Single Supply
Extra TTL and ECL Power/Ground Pins
Matched High and Low Output Impedance
Meets Specifications Required to Drive
Intel® Pentium® Microprocessors
Pb−Free Packages are Available*
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
*For additional marking information, refer to
Application Note AND8002/D.
ORDERING INFORMATION
xxx
A
WL
YY
WW
G
MARKING DIAGRAM*
http://onsemi.com
= 10 or 100
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
MCxxxH646G
FN SUFFIX
CASE 776
PLCC−28
AWLYYWW
Publication Order Number:
1
MC10H646/D

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MC10H646FN Summary of contents

Page 1

... Distribution Chip Description The MC10H/100H646 is a single supply, low skew translating 1:8 clock driver. Devices in the ON Semiconductor H646 translator series utilize the 28−lead PLCC for optimal power pinning, signal flow through and electrical performance. The single supply H646 is similar to the H643, which is a dual supply 1:8 version of the same function. ...

Page 2

Q3 26 OGND OVT OGND Figure 1. Pinout: PLCC−28 (Top View) EN TCLK ECLK ECLK Figure 2. Logic Diagram Table 1. ...

Page 3

INTERNAL TTL POWER INTERNAL TTL GROUND Figure 3. Output Structure Table 3. 10H PECL DC CHARACTERISTICS Symbol Characteristic Condition I Input HIGH Current INH I Input LOW Current IL V Input HIGH Voltage IVT = IVO = IH V CCE ...

Page 4

Table 5. DC CHARACTERISTICS (IVT = OVT = V Symbol Characteristic V Output HIGH Voltage OH V Output LOW Voltage OL IOS Output Short Circuit Current NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted ...

Page 5

... All AC specifications tested driving 50 W series terminated transmission lines at 80 MHz. ORDERING INFORMATION Device MC10H646FN MC10H646FNG MC10H646FNR2 MC10H646FNR2G MC100H646FN MC100H646FNG MC100H646FNR2 MC100H646FNR2G †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. = 5.0 V ± ...

Page 6

Resource Reference of Application Notes AN1405/D − ECL Clock Distribution Techniques AN1406/D − Designing with PECL (ECL at +5.0 V) AN1503/D − ECLinPSt I/O SPiCE Modeling Kit AN1504/D − Metastability and the ECLinPS Family AN1568/D − Interfacing Between LVDS and ...

Page 7

0.010 (0.250) T L− NOTES: 1. DATUMS −L−, −M−, AND −N− DETERMINED WHERE TOP OF LEAD SHOULDER EXITS PLASTIC BODY AT ...

Page 8

... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...

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