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MC10ELT22, MC100ELT22
5.0 V Dual TTL to Differential
PECL Translator
The MC10ELT/100ELT22 is a dual TTL to differential PECL
translator. Because PECL (Positive ECL) levels are used only +5 V
and ground are required. The small outline 8-lead package and the low
skew, dual gate design of the ELT22 makes it ideal for applications
which require the translation of a clock and a data signal.
Features
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MARKING
DIAGRAMS*
8
1
SO−8
D SUFFIX
CASE 751
1
8
HLT22
ALYW
G
8
KLT22
ALYW
G
•
•
•
•
•
•
•
1.2 ns Typical Propagation Delay
< 300 ps Typical Output to Output Skew
PNP TTL Inputs for Minimal Loading
Flow Through Pinouts
Operating Range: V
CC
= 4.75 V to 5.25 V with GND = 0 V
No Internal Input Pulldown Resistors
Pb−Free Packages are Available
1
8
1
TSSOP−8
DT SUFFIX
CASE 948R
8
HT22
ALYWG
G
1
8
KT22
ALYWG
G
1
H = MC10
K = MC100
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
*For additional information, see Application Note
AND8002/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
©
Semiconductor Components Industries, LLC, 2006
November, 2006
−
Rev. 9
1
Publication Order Number:
MC10ELT22/D
MC10ELT22, MC100ELT22
Table 1. PIN DESCRIPTION
Q0
1
8
V
CC
Qn, Qn
Q0
2
PECL
Q1
3
TTL
6
D1
7
D0
Dn
V
CC
GND
Pin
Function
PECL Differential Outputs*
TTL Inputs
Positive Supply
Ground
*Output state undetermined when inputs are open.
Q1
4
5
GND
Figure 1. Logic Diagram and Pinout Assignment
Table 2. ATTRIBUTES
Characteristics
Internal Input Pulldown Resistor
Internal Input Pullup Resistor
ESD Protection
Human Body Model
Machine Model
Value
N/A
N/A
> 2 kV
> 200 V
Level 1
UL 94 V−0 @ 0.125 in
51
Moisture Sensitivity, Indefinite Time Out of Drypack (Note 1)
Flammability Rating
Transistor Count
Meets or exceeds JEDEC Spec EIA/JESD78 IC Latchup Test
1. For additional information, see Application Note AND8003/D.
Oxygen Index: 28 to 34
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2
MC10ELT22, MC100ELT22
Table 3. MAXIMUM RATINGS
Symbol
V
CC
V
IN
I
out
T
A
T
stg
q
JA
q
JC
q
JA
q
JC
T
sol
Parameter
Positive Power Supply
Input Voltage
Output Current
Operating Temperature Range
Storage Temperature Range
Thermal Resistance (Junction−to−Ambient)
Thermal Resistance (Junction−to−Case)
Thermal Resistance (Junction−to−Ambient)
Thermal Resistance (Junction−to−Case)
Wave Solder
0 lfpm
500 lfpm
Standard Board
0 lfpm
500 lfpm
Standard Board
<2 to 3 sec @ 248°C
8 SOIC
8 SOIC
8 SOIC
8 TSSOP
8 TSSOP
8 TSSOP
Condition 1
GND = 0 V
GND = 0 V
Continuous
Surge
Condition 2
Rating
7
GND + 0.025
v
V
I
v
V
CC
−
0.025
50
100
−40
to +85
−65
to +150
190
130
41 to 44
185
140
41 to 44
±
5%
265
Units
V
V
mA
mA
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C
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.
Table 4. 10ELT SERIES PECL DC CHARACTERISTICS
V
CC
= 5.0 V; GND = 0.0 V (Note 2)
−40°C
Symbol
I
CC
V
OH
V
OL
Characteristic
Power Supply Current
Output HIGH Voltage (Note 3)
Output LOW Voltage (Note 3)
3920
3050
4010
3200
Min
Typ
Max
22
4110
3350
4020
3050
4105
3210
Min
25°C
Typ
Max
22
4190
3370
4090
3050
4185
3227
Min
85°C
Typ
Max
22
4280
3405
Unit
mA
mV
mV
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.
2. Output parameters vary 1:1 with V
CC
. V
CC
can vary
±
0.25 V.
3. Outputs are terminated through a 50
W
resistor to V
CC
−
2.0 V.
Table 5. 100ELT SERIES PECL DC CHARACTERISTICS
V
CC
= 5.0 V; GND = 0.0 V (Note 4)
−40°C
Symbol
I
CC
V
OH
V
OL
Characteristic
Power Supply Current
Output HIGH Voltage (Note 5)
Output LOW Voltage (Note 5)
3915
3170
3995
3305
Min
Typ
Max
22
4120
3445
3975
3190
4045
3295
Min
25°C
Typ
Max
22
4120
3380
3975
3190
4050
3295
Min
85°C
Typ
Max
22
4120
3380
Unit
mA
mV
mV
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. Output parameters vary 1:1 with V
CC
. V
CC
can vary
±
0.25 V.
5. Outputs are terminated through a 50
W
resistor to V
CC
−
2.0 V.
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3
MC10ELT22, MC100ELT22
Table 6. TTL INPUT DC CHARACTERISTICS
V
CC
= 4.75 V to 5.25 V; T
A
=
−40°C
to 85°C
Symbol
I
IH
I
IHH
I
IL
V
IK
V
IH
V
IL
Characteristic
Input HIGH Current
Input HIGH Current
Input LOW Current
Input Clamp Diode Voltage
Input HIGH Voltage
Input LOW Voltage
Condition
V
IN
= 2.7 V;
V
IN
= (V
CC
−
0.025) V
V
IN
= 7.0 V
V
IN
= 0.5 V;
V
IN
= (GND + 0.025) V
I
IN
=
−18
mA
2.0
GND + 0.025 V
Min
Typ
Max
20
100
−0.6
−1.2
V
CC
−
0.025 V
0.8
Unit
mA
mA
mA
V
V
V
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.
Table 7. AC CHARACTERISTICS
V
CC
= 4.75 V to 5.25 V; GND= 0.0 V
−40°C
Symbol
f
MAX
t
PLH
t
PHL
t
skew
t
JITTER
t
r
/t
f
Characteristic
Maximum Input Frequency
Propagation Delay (Note 6)
1.5 V to 50%
Propagation Delay (Note 6)
1.5 V to 50%
Within−Device Skew (Note 7)
Device−to−Device Skew (Note 8)
CLOCK Random Jitter (RMS)
Output Rise/Fall Time
(20−80%)
0.4
1.6
0.4
0.6
0.4
50
300
1.2
1.0
100
600
0.9
0.5
Min
Typ
Max
Min
25°C
Typ
500
1.2
0.8
50
300
0.5
1.6
0.4
1.6
1.5
1.1
100
600
0.6
0.7
50
350
1.35
1.30
100
750
Max
Min
85°C
Typ
Max
Unit
MHz
ns
ns
ps
ps
ns
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.
6. Specifications for standard TTL input signal.
7. Skew is measured between outputs under identical transitions and conditions on any one device.
8. Device−to−Device Skew for identical transitions at identical V
CC
levels.
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