MC100LVEL37 D

MC100LVEL37
3.3V ECL 1:4 ÷1/÷2 Clock
Fanout Buffer
Description
The MC100LVEL37 is a fully differential 1:4 fanout buffer. The
device offers two outputs at ÷1 of the input frequency, and two outputs
at ÷2 of the input frequency. The Low Output−Output Skew of the
device makes it ideal for distributing 1x and 1/2x frequency
synchronous signals.
The differential inputs have special circuitry which ensures device
stability under open input conditions. When both differential inputs
are left open the CLKn input will pull down to VEE, The CLKn input
will bias around VCC/2 and the Qn output will go LOW.
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SO−20 WB
DW SUFFIX
CASE 751D
Features
• 700 ps Typical Propagation Delays
• 50 ps Maximum Output−Output Skews
• ESD Protection: >2 kV Human Body Model,
•
•
•
•
•
•
•
•
•
•
>200 V Machine Model
The 100 Series Contains Temperature Compensation
PECL Mode Operating Range: VCC = 3.0 V to 3.8 V
with VEE = 0 V
NECL Mode Operating Range: VCC = 0 V
with VEE = −3.0 V to −3.8 V
Internal Input Pulldown Resistors
Qn Output will Default LOW with Inputs Open or at VEE
Meets or Exceeds JEDEC Spec EIA/JESD78 IC Latchup Test
Moisture Sensitivity Pb = Level 1
Pb−Free = Level 3
For Additional Information, see Application Note AND8003/D
Flammability Rating: UL 94 V−0 @ 0.125 in,
Oxygen Index 28 to 34
Transistor Count = 256 devices
Pb−Free Packages are Available*
MARKING DIAGRAM*
20
100LVEL37
AWLYYWWG
1
A
WL
YY
WW
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
*For additional marking information, refer to
Application Note AND8002/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2008
November, 2008 − Rev. 6
1
Publication Order Number:
MC100LVEL37/D
MC100LVEL37
VEE
Q0
Q0
Q1
Q1
Q2
Q2
Q3
Q3
VCC
20
19
18
17
16
15
14
13
12
11
Table 1. TRUTH TABLE
Clk_Sel
MR
Q0, 1
Q2, 3
L
H
X
L
L
H
CLK0/÷1
CLK1/÷1
L
CLK0/÷2
CLK1/÷2
L
÷1 ÷2
X = Don’t Care
1
2
3
VCC
VCC
4
5
6
7
CLK0 CLK0 Clk_Sel CLK1 CLK1
8
9
10
MR
VEE
VEE
Table 2. PIN DESCRIPTION
Figure 1. 20−Lead Pinout (Top View)
Warning: All VCC and VEE pins must be externally connected
to Power Supply to guarantee proper operation.
PIN
FUNCTION
Q0, Q0; Q1, Q1
Q2, Q2; Q3, Q3
CLKn, CLKn
Clk_Sel
MR
VCC
VEE
ECL Differential Clock ÷1 Outputs
ECL Differential Clock ÷2 Outputs
ECL Differential Clock Inputs
ECL Input Clock Selection
ECL Asynchronous Master Reset
Positive Supply
Negative Supply
Table 3. MAXIMUM RATINGS
Symbol
Parameter
Condition 1
Condition 2
Rating
Unit
VCC
PECL Mode Power Supply
VEE = 0 V
8 to 0
V
VEE
NECL Mode Power Supply
VCC = 0 V
−8 to 0
V
VI
PECL Mode Input Voltage
NECL Mode Input Voltage
VEE = 0 V
VCC = 0 V
6 to 0
−6 to 0
V
V
Iout
Output Current
Continuous
Surge
50
100
mA
mA
TA
Operating Temperature Range
−40 to +85
°C
Tstg
Storage Temperature Range
−65 to +150
°C
qJA
Thermal Resistance (Junction to Ambient)
0 lfpm
500 lfpm
20 SOIC
20 SOIC
90
60
°C/W
°C/W
qJC
Thermal Resistance (Junction to Case)
Standard Board
20 SOIC
30 to 35
°C/W
Tsol
Wave Solder
<2 to 3 sec @ 248°C
<2 to 3 sec @ 260°C
265
265
°C
Pb
Pb−Free
VI VCC
VI VEE
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may
affect device reliability.
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MC100LVEL37
Table 4. LVPECL DC CHARACTERISTICS VCC = 3.3 V; VEE = 0.0 V (Note 1)
−40°C
Symbol
Characteristic
Min
25°C
Typ
Max
38
50
Min
85°C
Typ
Max
38
55
Min
Typ
Max
Unit
38
55
mA
IEE
Power Supply Current
VOH
Output HIGH Voltage (Note 2)
2215
2295
2420
2275
2345
2420
2275
2345
2420
mV
VOL
Output LOW Voltage (Note 2)
1470
1605
1745
1490
1595
1680
1490
1595
1680
mV
VIH
Input HIGH Voltage (Single−Ended)
2135
2420
2135
2420
2135
2420
mV
VIL
Input LOW Voltage (Single−Ended)
1490
1825
1490
1825
1490
1825
mV
VIHCMR
Input HIGH Voltage Common Mode
Range (Differential) (Note 6)
VPP < 500 mV
VPP y 500 mV
1.3
1.5
2.9
2.9
1.2
1.4
2.9
2.9
1.2
1.4
2.9
2.9
V
V
150
mA
IIH
Input HIGH Current
IIL
Input LOW Current
150
CLKn
CLKn
0.5
−300
150
0.5
−300
0.5
−300
mA
mA
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
1. Input and output parameters vary 1:1 with VCC. VEE can vary ±0.3 V.
2. Outputs are terminated through a 50 W resistor to VCC − 2.0 V.
3. VIHCMR min varies 1:1 with VEE, max varies 1:1 with VCC. The VIHCMR range is referenced to the most positive side of the differential input signal.
Normal operation is obtained if the HIGH level falls within the specified range and the peak-to-peak voltage lies between VPPmin and 1 V.
Table 5. LVNECL DC CHARACTERISTICS VCC = 0.0 V; VEE = −3.3 V (Note 4)
−40°C
Symbol
Characteristic
Min
25°C
Typ
Max
38
50
Min
85°C
Typ
Max
38
55
Min
Typ
Max
Unit
38
55
mA
IEE
Power Supply Current
VOH
Output HIGH Voltage (Note 5)
−1085
−1005
−880
−1025
−955
−880
−1025
−955
−880
mV
VOL
Output LOW Voltage (Note 5)
−1830
−1695
−1555
−1810
−1705
−1620
−1810
−1705
−1620
mV
VIH
Input HIGH Voltage (Single−Ended)
−1165
−880
−1165
−880
−1165
−880
mV
VIL
Input LOW Voltage (Single−Ended)
−1810
−1475
−1810
−1475
−1810
−1475
mV
VIHCMR
Input HIGH Voltage Common Mode
Range (Differential) (Note 6)
VPP < 500 mV
VPP y 500 mV
−2.0
−1.8
−0.4
−0.4
−2.1
−1.9
−0.4
−0.4
−2.1
−1.9
−0.4
−0.4
V
V
150
mA
IIH
Input HIGH Current
IIL
Input LOW Current
150
CLKn
CLKn
0.5
−300
150
0.5
−300
0.5
−300
mA
mA
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
4. Input and output parameters vary 1:1 with VCC. VEE can vary ±0.3 V.
5. Outputs are terminated through a 50 W resistor to VCC − 2.0 V.
6. VIHCMR min varies 1:1 with VEE, max varies 1:1 with VCC. The VIHCMR range is referenced to the most positive side of the differential input signal.
Normal operation is obtained if the HIGH level falls within the specified range and the peak-to-peak voltage lies between VPPmin and 1 V.
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MC100LVEL37
Table 6. AC CHARACTERISTICS VCC = 3.3 V; VEE = 0.0 V or VCC = 0.0 V; VEE = −3.3 V (Note 7)
−40°C
Symbol
Characteristic
Min
Typ
25°C
Max
Min
TBD
Typ
85°C
Max
Min
TBD
Typ
Max
TBD
Unit
fmax
Maximum Toggle Frequency
GHz
tPLH
tPHL
Propagation Delay
tSKEW
Within-Device Skew (Note 8)
Duty Cycle Skew (Differential Configuration)
(Note 9)
tJITTER
Cycle−to−Cycle Jitter
VPP
Input Swing (Note 10)
150
1000
150
1000
150
1000
mV
tr
tf
Output Rise/Fall Times Q
(20% − 80%)
280
550
280
550
280
550
ps
ps
CLK to Q/Q (Diff)
CLK to Q/Q
MR to Q
640
620
640
940
920
920
680
680
680
700
700
700
50
50
920
940
920
720
720
720
980
970
980
50
50
TBD
50
50
TBD
TBD
ps
ps
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
7. VEE can vary ±0.3 V.
8. Within-device skew defined as identical transitions on similar paths through a device.
9. Duty cycle skew is the difference between a TPLH and TPHL propagation delay through a device.
10. VPP(min) is minimum input swing for which AC parameters guaranteed. The device has a DC gain of ≈40.
Q
Zo = 50 W
D
Receiver
Device
Driver
Device
Q
D
Zo = 50 W
50 W
50 W
VTT
VTT = VCC − 2.0 V
Figure 2. Typical Termination for Output Driver and Device Evaluation
(See Application Note AND8020/D − Termination of ECL Logic Devices.)
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MC100LVEL37
ORDERING INFORMATION
Package
Shipping†
MC100LVEL37DW
SO−20 WB
38 Units / Rail
MC100LVEL37DWG
SO−20 WB
(Pb−Free)
38 Units / Rail
MC100LVEL37DWR2
SO−20 WB
1000 / Tape & Reel
MC100LVEL37DWR2G
SO−20 WB
(Pb−Free)
1000 / Tape & Reel
Device
†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.
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 ECL
AN1672/D
− The ECL Translator Guide
AND8001/D
− Odd Number Counters Design
AND8002/D
− Marking and Date Codes
AND8020/D
− Termination of ECL Logic Devices
AND8066/D
− Interfacing with ECLinPS
AND8090/D
− AC Characteristics of ECL Devices
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MC100LVEL37
PACKAGE DIMENSIONS
SO−20 WB
DW SUFFIX
CASE 751D−05
ISSUE G
A
20
q
X 45 _
E
h
H
M
10X
0.25
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE PROTRUSION
SHALL BE 0.13 TOTAL IN EXCESS OF B
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
11
B
M
D
1
10
20X
B
B
0.25
M
T A
S
B
S
L
A
18X
e
A1
SEATING
PLANE
C
T
DIM
A
A1
B
C
D
E
e
H
h
L
q
MILLIMETERS
MIN
MAX
2.35
2.65
0.10
0.25
0.35
0.49
0.23
0.32
12.65
12.95
7.40
7.60
1.27 BSC
10.05
10.55
0.25
0.75
0.50
0.90
0_
7_
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MC100LVEL37/D