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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Low Voltage 2:8 Differential Fanout Buffer
ECL/PECL Compatible
MC100LVE310 MC100E310
The MC100LVE310 is a low voltage, low skew 2:8 differential ECL fanout buffer designed with clock distribution in mind. The device features fully differential clock paths to minimize both device and system skew. The LVE310 offers two selectable clock inputs to allow for redundant or test clocks to be incorporated into the system clock trees. The MC100E310 is pin compatible to the National 100310 device. The MC100LVE310 works from a -3.3V supply while the MC100E310 provides identical function and performance from a standard -4.5V 100E voltage supply.
LOW VOLTAGE 2:8 DIFFERENTIAL FANOUT BUFFER
* * * * *
Dual Differential Fanout Buffers 200ps Part-to-Part Skew 50ps 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 VBB reference should be connected to the CLK input and bypassed to ground FN SUFFIX via a 0.01f capacitor. The input signal is then driven into the CLK input. PLASTIC PACKAGE To ensure that the tight skew specification is met it is necessary that CASE 776-02 both sides of the differential output are terminated into 50, 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 MC100LVE310, as with most ECL devices, can be operated from a positive VCC supply in PECL mode. This allows the LVE310 to be used for high performance clock distribution in +3.3V systems. Designers can take advantage of the LVE310'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.
7/95
(c) Motorola, Inc. 1996
4-1
REV 0.1
MC100LVE310 MC100E310
Q0 25 VEE CLK_SEL CLKa VCC CLKa VBB CLKb 26 27 28 1 2 3 4 5 CLKb 6 NC 7 8 9 10 Q6 11 Q6 Q0 24 Q1 VCCO Q1 23 22 21 Q2 20 Q2 19 18 17 16 Q3
PIN NAMES
Q3 Pins Q4 VCCO Q4 Q5 Q5 CLK_SEL 0 1 Input Clock CLKa Selected CLKb Selected CLKa, CLKb Q0:7 VBB CLK_SEL Function Differential Input Pairs Differential Outputs VBB Output Input Clock Select
Pinout: 28-Lead PLCC (Top View)
15 14 13 12
Q7 VCCO Q7
LOGIC SYMBOL
Q0 Q0 Q1 Q1 Q2 Q2 CLKa CLKa CLKb CLKb CLK_SEL Q3 Q3 Q4 Q4 Q5 Q5 Q6 Q6 Q7 Q7 VBB
MOTOROLA
4-2
ECLinPS and ECLinPS Lite DL140 -- Rev 3
MC100LVE310 MC100E310
MC100LVE310 ECL DC CHARACTERISTICS
-40C Symbol VOH VOL VIH VIL VBB VEE IIH IEE Characteristic Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage Output Reference Voltage Power Supply Voltage Input HIGH Current Power Supply Current 55 Min -1.085 -1.830 -1.165 -1.810 -1.38 -3.0 Typ -1.005 -1.695 Max -0.880 -1.555 -0.880 -1.475 -1.26 -3.8 150 60 55 Min -1.025 -1.810 -1.165 -1.810 -1.38 -3.0 0C Typ -0.955 -1.705 Max -0.880 -1.620 -0.880 -1.475 -1.26 -3.8 150 60 55 Min -1.025 -1.810 -1.165 -1.810 -1.38 -3.0 25C Typ -0.955 -1.705 Max -0.880 -1.620 -0.880 -1.475 -1.26 -3.8 150 60 65 Min -1.025 -1.810 -1.165 -1.810 -1.38 -3.0 85C Typ -0.955 -1.705 Max -0.880 -1.620 -0.880 -1.475 -1.26 -3.8 150 70 Unit V V V V V V A mA
MC100LVE310 PECL DC CHARACTERISTICS
-40C Symbol VOH VOL VIH VIL VBB VCC IIH IEE Characteristic Output HIGH Voltage1 Output LOW Voltage1 Input HIGH Voltage1 Input LOW Voltage1 Output Reference Voltage1 Power Supply Voltage Input HIGH Current Power Supply Current 55 Min 2.215 1.47 2.135 1.490 1.92 3.0 Typ 2.295 1.605 Max 2.42 1.745 2.420 1.825 2.04 3.8 150 60 55 Min 2.275 1.490 2.135 1.490 1.92 3.0 0C Typ 2.345 1.595 Max 2.420 1.680 2.420 1.825 2.04 3.8 150 60 55 Min 2.275 1.490 2.135 1.490 1.92 3.0 25C Typ 2.345 1.595 Max 2.420 1.680 2.420 1.825 2.04 3.8 150 60 65 Min 2.275 1.490 2.135 1.490 1.92 3.0 85C Typ 2.345 1.595 Max 2.420 1.680 2.420 1.825 2.04 3.8 150 70 Unit V V V V V V A mA
1. These values are for VCC = 3.3V. Level Specifications will vary 1:1 with VCC.
MC100LVE310 AC CHARACTERISTICS (VEE = VEE (min) to VEE (max); VCC = VCCO = GND)
-40C Symbol tPLH tPHL tskew VPP VCMR tr/tf Characteristic Propagation Delay to Output IN (differential) IN (single-ended) Within-Device Skew Part-to-Part Skew (Diff) Minimum Input Swing Common Mode Range Output Rise/Fall Time 500 -1.5 200 -0.4 600 Min 525 500 Typ Max 725 750 75 250 500 -1.5 200 -0.4 600 Min 550 525 0C Typ Max 750 775 75 200 500 -1.5 200 -0.4 600 Min 550 550 25C Typ Max 750 800 50 200 500 -1.5 200 -0.4 600 Min 575 600 85C Typ Max 775 850 50 200 ps mV V ps Unit ps Note 1 Note 2 Note 3 Note 4 Note 5 20%-80% Condition
1. The differential propagation delay is defined as the delay from the crossing points of the differential input signals to the crossing point of the differential output signals. See Definitions and Testing of ECLinPS AC Parameters in Chapter 1 (page 1-12) of the Motorola High Performance ECL Data Book (DL140/D). 2. The single-ended propagation delay is defined as the delay from the 50% point of the input signal to the 50% point of the output signal. See Definitions and Testing of ECLinPS AC Parameters in Chapter 1 (page 1-12) of the Motorola High Performance ECL Data Book (DL140/D). 3. The within-device skew is defined as the worst case difference between any two similar delay paths within a single device. 4. VPP(min) is defined as the minimum input differential voltage which will cause no increase in the propagation delay. The VPP(min) is AC limited for the LVE310 as a differential input as low as 50 mV will still produce full ECL levels at the output. 5. VCMR is defined as the range within which the VIH level may vary, with the device still meeting the propagation delay specification. The VIL level must be such that the peak to peak voltage is less than 1.0 V and greater than or equal to VPP(min).
ECLinPS and ECLinPS Lite DL140 -- Rev 3
4-3
MOTOROLA
MC100LVE310 MC100E310
MC100E310 ECL DC CHARACTERISTICS
-40C Symbol VOH VOL VIH VIL VBB VEE IIH IEE Characteristic Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage Output Reference Voltage Power Supply Voltage Input HIGH Current Power Supply Current 55 Min -1.085 -1.830 -1.165 -1.810 -1.38 -5.25 Typ -1.005 -1.695 Max -0.880 -1.555 -0.880 -1.475 -1.26 -4.2 150 60 55 Min -1.025 -1.810 -1.165 -1.810 -1.38 -5.25 0C Typ -0.955 -1.705 Max -0.880 -1.620 -0.880 -1.475 -1.26 -4.2 150 60 55 Min -1.025 -1.810 -1.165 -1.810 -1.38 -5.25 25C Typ -0.955 -1.705 Max -0.880 -1.620 -0.880 -1.475 -1.26 -4.2 150 60 65 Min -1.025 -1.810 -1.165 -1.810 -1.38 -5.25 85C Typ -0.955 -1.705 Max -0.880 -1.620 -0.880 -1.475 -1.26 -4.2 150 70 Unit V V V V V V A mA
MC100E310 PECL DC CHARACTERISTICS
-40C Symbol VOH VOL VIH VIL VBB VCC IIH IEE Characteristic Output HIGH Voltage1 Output LOW Voltage1 Input HIGH Voltage1 Input LOW Voltage1 Output Reference Voltage1 Power Supply Voltage Input HIGH Current Power Supply Current 55 Min 3.915 3.170 3.835 3.190 3.62 4.75 Typ 3.995 3.305 Max 4.12 3.445 4.12 3.525 3.74 5.25 150 60 55 Min 3.975 3.19 3.835 3.190 3.62 4.75 0C Typ 4.045 3.295 Max 4.12 3.38 4.12 3.525 3.74 5.25 150 60 55 Min 3.975 3.19 3.835 3.190 3.62 4.75 25C Typ 4.045 3.295 Max 4.12 3.38 4.12 3.525 3.74 5.25 150 60 65 Min 3.975 3.19 3.835 3.190 3.62 4.75 85C Typ 4.045 3.295 Max 4.12 3.38 4.12 3.525 3.74 5.25 150 70 Unit V V V V V V A mA
1. These values are for VCC = 5.0V. Level Specifications will vary 1:1 with VCC.
MC100E310 AC CHARACTERISTICS (VEE = VEE (min) to VEE (max); VCC = VCCO = GND)
-40C Symbol tPLH tPHL tskew VPP VCMR tr/tf Characteristic Propagation Delay to Output IN (differential) IN (single-ended) Within-Device Skew Part-to-Part Skew (Diff) Minimum Input Swing Common Mode Range Output Rise/Fall Time 500 -1.5 200 -0.4 600 Min 525 500 Typ Max 725 750 75 250 500 -1.5 200 -0.4 600 Min 550 525 0C Typ Max 750 775 75 200 500 -1.5 200 -0.4 600 Min 550 550 25C Typ Max 750 800 50 200 500 -1.5 200 -0.4 600 Min 575 600 85C Typ Max 775 850 50 200 ps mV V ps Unit ps Note 1 Note 2 Note 3 Note 4 note 5 20%-80% Condition
1. The differential propagation delay is defined as the delay from the crossing points of the differential input signals to the crossing point of the differential output signals. See Definitions and Testing of ECLinPS AC Parameters in Chapter 1 (page 1-12) of the Motorola High Performance ECL Data Book (DL140/D). 2. The single-ended propagation delay is defined as the delay from the 50% point of the input signal to the 50% point of the output signal. See Definitions and Testing of ECLinPS AC Parameters in Chapter 1 (page 1-12) of the Motorola High Performance ECL Data Book (DL140/D). 3. The within-device skew is defined as the worst case difference between any two similar delay paths within a single device. 4. VPP(min) is defined as the minimum input differential voltage which will cause no increase in the propagation delay. The VPP(min) is AC limited for the E310 as a differential input as low as 50 mV will still produce full ECL levels at the output. 5. VCMR is defined as the range within which the VIH level may vary, with the device still meeting the propagation delay specification. The VIL level must be such that the peak to peak voltage is less than 1.0 V and greater than or equal to VPP(min).
MOTOROLA
4-4
ECLinPS and ECLinPS Lite DL140 -- Rev 3
MC100LVE310 MC100E310
OUTLINE DIMENSIONS
FN SUFFIX PLASTIC PLCC PACKAGE CASE 776-02 ISSUE D
0.007 (0.180) U T L -M
M
B -NY BRK
M
S
N
S S
0.007 (0.180)
T L -M
N
S
D Z -L-M-
W
28 1
D X VIEW D-D G1 0.010 (0.250)
S
V
T L -M
S
N
S
A Z R
0.007 (0.180) 0.007 (0.180)
M
T L -M T L -M
S
N N
S
H
S
0.007 (0.180)
M
T L -M
S
N
S
M
S
C
E G G1 0.010 (0.250)
S
K1 0.004 (0.100) J -TSEATING PLANE
K F VIEW S 0.007 (0.180)
M
VIEW S T L -M
S
T L -M
S
N
S
N
S
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).
DIM A B C E F G H J K R U V W X Y Z G1 K1
INCHES MIN MAX 0.485 0.495 0.485 0.495 0.165 0.180 0.090 0.110 0.013 0.019 0.050 BSC 0.026 0.032 0.020 -- 0.025 -- 0.450 0.456 0.450 0.456 0.042 0.048 0.042 0.048 0.042 0.056 -- 0.020 2 10 0.410 0.430 0.040 --
MILLIMETERS MIN MAX 12.32 12.57 12.32 12.57 4.57 4.20 2.29 2.79 0.33 0.48 1.27 BSC 0.66 0.81 0.51 -- 0.64 -- 11.58 11.43 11.43 11.58 1.07 1.21 1.07 1.21 1.42 1.07 -- 0.50 2 10 10.42 10.92 1.02 --
ECLinPS and ECLinPS Lite DL140 -- Rev 3
4-5
MOTOROLA
MC100LVE310 MC100E310
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. "Typical" 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; P.O. Box 20912; Phoenix, Arizona 85036. 1-800-441-2447 or 602-303-5454 MFAX: RMFAX0@email.sps.mot.com - TOUCHTONE 602-244-6609 INTERNET: http://Design-NET.com
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MOTOROLA 4-6
*MC100LVE310/D*
MC100LVE310/D ECLinPS and ECLinPS Lite DL140 -- Rev 3

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