MC10ELT28, MC100ELT28
5 V TTL to Differential
PECL and Differential PECL
to TTL Translator
Description
The MC10ELT/100ELT28 is a differential PECL to TTL translator
and a TTL to differential PECL translator in a single package. Because
PECL (Positive ECL) levels are used, only +5 V and ground are
required. The small outline 8-lead package and the dual translation
design of the ELT28 makes it ideal for applications which are sending
and receiving signals across a backplane.
The 100 Series contains temperature compensation.
Features
www.onsemi.com
MARKING DIAGRAMS*
8
1
SOIC−8
D SUFFIX
CASE 751
1
8
HLT28
ALYW
G
1
8
KLT28
ALYW
G
•
•
•
•
•
•
•
•
•
•
3.5 ns Typical PECL to TTL Propagation Delay
1.2 ns Typical TTL to PECL Propagation Delay
PNP TTL Inputs for Minimal Loading
24 mA TTL Outputs
Flow Through Pinouts
Operating Range V
CC
= 4.75 V to 5.25 V with GND= 0 V
Q
TTL
Output Will Default High with Inputs Left Open or < 1.3 V
Q
ECL
Output Will Default High with Inputs Left Open
Internal PECL Input Pulldown Resistors
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
8
1
TSSOP−8
DT SUFFIX
CASE 948R
H
K
= MC10
= MC100
8
HT28
ALYWG
G
8
KT28
ALYWG
G
1
1
A
L
Y
W
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
*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 6 of this data sheet.
©
Semiconductor Components Industries, LLC, 2015
1
August, 2015 − Rev. 11
Publication Order Number:
MC10ELT28/D
MC10ELT28, MC100ELT28
DECL
1
8 V
CC
Table 1. PIN DESCRIPTION
Pin
QTTL
DTTL
TTL Outputs
TTL Data Inputs
PECL Differential Outputs
PECL Differential Inputs
Positive Supply
Ground
Function
DECL
2
PECL
TTL
7
QTTL
QECL, QECL
6 DTTL
DECL, DECL
V
CC
QECL
3
QECL
4
5 GND
GND
Figure 1. 8−Lead Pinout
(Top View)
and Logic
Diagram
Table 2. ATTRIBUTES
Characteristics
ESD Protection
Human Body Model
Value
> 2 kV
Pb−Free Pkg
Level 1
Level 3
UL 94 V−0 @ 0.125 in
71 Devices
Moisture Sensitivity, Indefinite Time Out of Drypack (Note 1)
SOIC−8
TSSOP−8
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
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
PECL 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
Pb−Free
0 lfpm
500 lfpm
Standard Board
0 lfpm
500 lfpm
Standard Board
<2 to 3 sec @ 260°C
SOIC−8
SOIC−8
SOIC−8
TSSOP−8
TSSOP−8
TSSOP−8
Condition 1
GND = 0 V
GND = 0 V
Continuous
Surge
V
I
V
CC
Condition 2
Rating
7
0 to 6
50
100
−40 to +85
−65 to +150
190
130
41 to 44
185
140
41 to 44
±
5%
265
Unit
V
V
mA
mA
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
www.onsemi.com
2
MC10ELT28, MC100ELT28
Table 4. 10ELT SERIES PECL DC CHARACTERISTICS
V
CC
= 5.0 V; GND= 0.0 V (Note 2)
−40°C
Symbol
V
OH
V
OL
V
IH
V
IL
V
IHCMR
I
IH
I
IL
Characteristic
Output HIGH Voltage (Note 3)
Output LOW Voltage (Note 3)
Input HIGH Voltage (Single−Ended)
Input LOW Voltage (Single−Ended)
Input HIGH Voltage Common Mode
Range (Differential) (Note 4)
Input HIGH Current
Input LOW Current
0.5
Min
3920
3050
3770
3050
2.2
Typ
4010
3200
Max
4110
3350
4110
3500
5.0
255
0.5
Min
4020
3050
3870
3050
2.2
25°C
Typ
4105
3210
Max
4190
3370
4190
3520
5.0
175
0.3
Min
4090
3050
3940
3050
2.2
85°C
Typ
4185
3227
Max
4280
3405
4280
3555
5.0
175
Unit
mV
mV
mV
mV
V
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.
2. Input and output parameters vary 1:1 with V
CC
. V
CC
can vary
±
0.25 V.
3. PECL outputs are terminated through a 50
W
resistor to V
CC
− 2 V.
4. V
IHCMR
min varies 1:1 with GND, V
IHCMR
max varies 1:1 with V
CC
.
Table 5. 100ELT SERIES PECL DC CHARACTERISTICS
V
CC
= 5.0 V; GND= 0.0 V (Note 5)
−40°C
Symbol
V
OH
V
OL
V
IH
V
IL
V
IHCMR
I
IH
I
IL
Characteristic
Output HIGH Voltage (Note 6)
Output LOW Voltage (Note 6)
Input HIGH Voltage (Single−Ended)
Input LOW Voltage (Single−Ended)
Input HIGH Voltage Common Mode
Range (Differential) (Note 7)
Input HIGH Current
Input LOW Current
0.5
Min
3915
3170
3835
3190
2.2
Typ
3995
3305
Max
4120
3445
4120
3525
5.0
255
0.5
Min
3975
3190
3835
3190
2.2
25°C
Typ
4045
3295
Max
4120
3380
4120
3525
5.0
175
0.5
Min
3975
3190
3835
3190
2.2
85°C
Typ
4050
3295
Max
4120
3380
4120
3525
5.0
175
Unit
mV
mV
mV
mV
V
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.
5. Input and output parameters vary 1:1 with V
CC
. V
CC
can vary
±
0.25 V.
6. PECL outputs are terminated through a 50
W
resistor to V
CC
− 2 V.
7. V
IHCMR
min varies 1:1 with GND, V
IHCMR
max varies 1:1 with V
CC
.
Table 6. TTL OUTPUT DC CHARACTERISTICS
V
CC
= 4.75V to 5.25V; T
A
= −40°C to 85°C
Symbol
V
OH
V
OL
I
CCH
I
CCL
I
OS
Characteristic
Output HIGH Voltage
Output LOW Voltage
Power Supply Current
Power Supply Current
Output Short Circuit Current
−150
Condition
I
OH
= −3.0 mA
I
OL
= 24 mA
27
29
Min
2.4
0.5
40
42
−60
Typ
Max
Unit
V
V
mA
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.
www.onsemi.com
3
MC10ELT28, MC100ELT28
Table 7. 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
= 7.0 V
V
IN
= 0.5 V
I
IN
= −18 mA
2.0
0.8
Min
Typ
Max
20
100
−0.6
−1.2
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.
Table 8. AC CHARACTERISTICS
V
CC
= 4.75 V to 5.25 V (Note 8)
−40°C
Symbol
f
max
t
PLH
Characteristic
Maximum Toggle Frequency
Propagation Delay @ 1.5 V
DECL to QTTL
DTTL to QECL
t
PHL
Propagation Delay @ 1.5 V
DECL to QTTL
DTTL to QECL
t
r
, t
f
V
PP
t
r
/t
f
Rise/Fall Times
(20% − 80%)
PECL Input Swing (Note 9)
Output Rise Time (10% − 90%)
Output Fall Time (10% − 90%)
QECL
2.0
0.4
0.15
200
5.5
1.0
1.5
1000
2.0
0.5
0.15
200
1.6
1.1
0.8
5.5
1.1
1.5
1000
2.0
0.7
0.15
200
5.5
1.3
1.5
1000
ns
mV
ns
ns
2.0
0.6
5.5
1.2
2.0
0.9
1.2
5.5
1.5
2.0
0.6
5.5
1.35
ns
Min
Typ
TBD
Max
Min
25°C
Typ
100
Max
Min
85°C
Typ
TBD
Max
Unit
MHz
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.
8. R
L
= 500
W
to GND and C
L
= 20 pF to GND. Refer to Figure 2.
9. V
PP
(min) is the minimum input swing for which AC parameters are guaranteed.
www.onsemi.com
4
MC10ELT28, MC100ELT28
APPLICATION
TTL RECEIVER
CHARACTERISTIC TEST
*C
L
includes
fixture
capacitance
C
L
*
R
L
AC TEST LOAD
GND
Figure 2. TTL Output Loading Used for Device Evaluation
www.onsemi.com
5
京公网安备 11010802033920号
EEWORLD
