The MC100LVE210 is a low voltage, low skew dual differential ECL
fanout buffer designed with clock distribution in mind. The device features
two fanout buffers, a 1:4 and a 1:5 buffer, on a single chip. The device
features fully differential clock paths to minimize both device and system
skew. The dual buffer allows for the fanout of two signals through a single
chip, thus reducing the skew between the two fundamental signals from a
part–to–part skew down to an output–to–output skew. This capability
reduces the skew by a factor of 4 as compared to using two LVE111’s to
accomplish the same task. The MC100LVE210 works from a –3.3V
supply while the MC100E210 provides identical function and
performance from a standard –4.5V 100E voltage supply.
DUAL 1:4, 1:5 DIFFERENTIAL
• Dual Differential Fanout Buffers
• 200ps Part–to–Part Skew
• 50ps Typical Output–to–Output Skew
• Low Voltage ECL/PECL Compatible
• 28–lead PLCC Packaging
For applications which require a single–ended input, the VBB reference
voltage is supplied. For single–ended input applications the V
reference should be connected to the CLK input and bypassed to ground
via a 0.01µf capacitor. The input signal is then driven into the CLK input.
To ensure that the tight skew specification is met it is necessary that
both sides of the differential output are terminated into 50Ω, even if only
one side is being used. In most applications all nine differential pairs will
be used and therefore terminated. In the case where fewer than nine
pairs are used it is necessary to terminate at least the output pairs
adjacent to the output pair being used in order to maintain minimum skew.
Failure to follow this guideline will result in small degradations of
propagation delay (on the order of 10–20ps) of the outputs being used,
while not catastrophic to most designs this will result in an increase in
skew. Note that the package corners isolate outputs from one another
such that the guideline expressed above holds only for outputs on the
same side of the package.
The MC100L VE210, as with most ECL devices, can be operated from a positive VCC supply in PECL mode. This allows the
LVE210 to be used for high performance clock distribution in +3.3V systems. Designers can take advantage of the LVE210’s
performance to distribute low skew clocks across the backplane or the board. In a PECL environment series or Thevenin line
terminations are typically used as they require no additional power supplies, if parallel termination is desired a terminating voltage
of VCC–2.0V will need to be provided. For more information on using PECL, designers should refer to Motorola Application Note
AN1406/D.
Voltage
Power Supply Voltage–5.25–4.2–5.25–4.2–5.25–4.2–5.25–4.2V
Input HIGH Current150150150150µA
Power Supply Current55555565mA
Output HIGH Voltage13.9153.9954.123.9754.0454.123.9754.0454.123.9754.0454.12V
Output LOW Voltage13.1703.3053.4453.193.2953.383.193.2953.383.193.2953.38V
Input HIGH Voltage
Input LOW Voltage
Output Reference
1
Voltage
Power Supply Voltage4.755.254.755.254.755.254.755.25V
Input HIGH Current150150150150µA
Power Supply Current55555565mA
–1.38–1.26–1.38–1.26–1.38–1.26–1.38–1.26V
–40°C0°C25°C85°C
1
3.8354.123.8354.123.8354.123.8354.12V
1
3.1903.5253.1903.5253.1903.5253.1903.525V
3.623.743.623.743.623.743.623.74V
MC100E210
AC CHARACTERISTICS (VEE = VEE (min) to VEE (max); VCC = V
in Chapter 1 (page 1–12) of the Motorola High Performance ECL Data Book (DL140/D).
for the E210 as a differential input as lowas 50 mV will still produce full ECL levels at the output.
is defined as the range within which the VIH level may vary, with the device still meeting the propagation delay specification. The VIL level
CMR
must be such that the peak to peakvoltage is less than 1.0 V and greater than or equal to VPP(min).
= GND)
CCO
675
700
50
200
500
450
700
750
503075
200
500
450
503075
50
ps
700
750
psNote 3
50
200
in Chapter 1 (page 1–12) of the Motorola High Performance
Note 1
Note 2
MOTOROLAECLinPS and ECLinPS Lite
4–4
DL140 — Rev 3
-L-
281
-N-
MC100LVE210 MC100E210
OUTLINE DIMENSIONS
FN SUFFIX
PLASTIC PLCC PACKAGE
CASE 776–02
ISSUE D
SNSM
0.007 (0.180)T L
Y BRK
B
0.007 (0.180)T L
U
D
Z
-M-
D
W
V
X
VIEW D-D
–M
G1
0.010 (0.250)T L
–M
SNSM
SNSS
–M
Z
C
G
G1
0.010 (0.250)T L
0.007 (0.180)T L
A
0.007 (0.180)T L
R
E
0.004 (0.100)
SEATING
-T-
J
PLANE
VIEW S
SNSS
–M
NOTES:
1. DATUMS -L-, -M-, AND -N- DETERMINED
WHERE TOP OF LEAD SHOULDER EXITS
PLASTIC BODY AT MOLD PARTING LINE.
2. DIM G1, TRUE POSITION TO BE MEASURED
AT DATUM -T-, SEATING PLANE.
3. DIM R AND U DO NOT INCLUDE MOLD FLASH.
ALLOWABLE MOLD FLASH IS 0.010 (0.250)
PER SIDE.
4. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
5. CONTROLLING DIMENSION: INCH.
6. THE PACKAGE TOP MAY BE SMALLER THAN
THE PACKAGE BOTTOM BY UP TO 0.012
(0.300). DIMENSIONS R AND U ARE
DETERMINED AT THE OUTERMOST
EXTREMES OF THE PLASTIC BODY
EXCLUSIVE OF MOLD FLASH, TIE BAR
BURRS, GATE BURRS AND INTERLEAD
FLASH, BUT INCLUDING ANY MISMATCH
BETWEEN THE TOP AND BOTTOM OF THE
PLASTIC BODY.
7. DIMENSION H DOES NOT INCLUDE DAMBAR
PROTRUSION OR INTRUSION. THE DAMBAR
PROTRUSION(S) SHALL NOT CAUSE THE H
DIMENSION TO BE GREATER THAN 0.037
(0.940). THE DAMBAR INTRUSION(S) SHALL
NOT CAUSE THE H DIMENSION TO BE
SMALLER THAN 0.025 (0.635).
–M
–M
SNSM
SNSM
H
0.007 (0.180)T L
–M
SNSM
K1
K
SNSM
0.007 (0.180)T L
F
–M
VIEW S
INCHESMILLIMETERS
MINMINMAXMAX
DIM
G1
K1
A
B
C
E
F
G
H
J
K
R
U
V
W
X
Y
Z
0.485
0.485
0.165
0.090
0.013
0.050 BSC
0.026
0.020
0.025
0.450
0.450
0.042
0.042
0.042
—
°
2
0.410
0.040
0.495
0.495
0.180
0.110
0.019
0.032
—
—
0.456
0.456
0.048
0.048
0.056
0.020
10
0.430
—
12.32
12.57
12.32
12.57
4.20
4.57
2.29
2.79
0.33
0.48
1.27 BSC
0.66
0.81
0.51
—
0.64
—
11.43
11.58
11.43
11.58
1.07
1.21
1.07
1.21
1.07
1.42
—
0.50
°
°
2
1.02
10
10.92
—
°
10.42
DL140 — Rev 3
4–5MOTOROLAECLinPS and ECLinPS Lite
MC100LVE210 MC100E210
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
How to reach us:
USA/EUROPE/ Locations Not Listed: Motorola Literature Distribution;JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–54543–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315
MFAX: RMF AX0@email.sps.mot.com – T OUCHTONE 602–244–6609ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
INTERNET: http://Design–NET .com51 Ting Kok Road, Tai Po, N.T ., Hong Kong. 852–26629298
MOTOROLAECLinPS and ECLinPS Lite
4–6
*MC100LVE210/D*
◊
MC100LVE210/D
DL140 — Rev 3
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