MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Differential ECL to TTL
Translator
The MC10ELT/100ELT25 is a differential ECL to TTL translator.
Because ECL levels are used a +5V, -5.2V (or -4.5V) and ground are
required. The small outline 8-lead SOIC package and the single gate of
the ELT25 makes it ideal for those applications where space,
performance and low power are at a premium. Because the mature
MOSAIC 1.5 process is used, low cost can be added to the list of
features.
The VBB output allows the ELT25 to also be used in a single-ended
input mode. In this mode the VBB output is tied to the IN input for a
non-inverting buffer or the IN input for an inverting buffer. If used the VBB
pin should be bypassed to ground via a 0.01µF capacitor.
The ELT25 is available in both ECL standards: the 10ELT is compatible
with MECL 10H logic levels while the 100ELT is compatible with ECL
100K logic levels.
MC10ELT25
MC100ELT25
8
1
•
•
•
•
•
2.6ns Typical Propagation Delay
Differential ECL Inputs
Small Outline SOIC Package
24mA TTL Outputs
Flow Through Pinouts
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751-05
LOGIC DIAGRAM AND PINOUT ASSIGNMENT
VEE 1
TTL
ECL
D0
3
8
VCC
PIN
D
Q
VCC
VEE
VBB
GND
PIN DESCRIPTION
FUNCTION
Diff ECL Inputs
TTL Output
Positive Supply
Negative Supply
Reference Output
Ground
D0
2
7
Q0
6
NC
VBB
4
5
GND
1/95
©
Motorola, Inc. 1996
3–1
REV 2
MC10ELT25 MC100ELT25
MAXIMUM RATINGS*
Symbol
VCC
VEE
VIN
IOUT
TA
TSTG
Parameter
DC Supply Voltage (Referenced to GND, VEE = –5.2)
DC Supply Voltage (Referenced to GND, VCC = 5.0)
Input Voltage
Current Applied to Output in Low Output State
Operating Temperature Range (In Free-Air)
Storage Temperature Range
Continuous
Surge
Value
7.0
–8.0
0 to VCC
50
100
–40 to 85
–55 to +150
Unit
V
V
V
mA
°C
°C
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the
Recommended Operating Conditions.
TTL OUTPUT DC CHARACTERISTICS
(VCC = 4.5V to 5.5V; VEE = –4.2V to –5.5V 100ELT, –4.94V to –5.5V 10ELT;
TA = –40°C to 85°C)
Symbol
VOH
VOL
ICCH
ICCL
IEE
IOS
Characteristic
Output HIGH Voltage
Output LOW Voltage
Power Supply Current
Power Supply Current
Power Supply Current
Output Short Circuit Current
–150
11
13
15
Min
2.4
0.5
16
18
21
–60
Typ
Max
Unit
V
V
mA
mA
mA
mA
Condition
IOH = –3.0mA
IOL = 24mA
ECL INPUT DC CHARACTERISTICS
(VCC = 4.5V to 5.5V; VEE = –4.2V to –5.5V 100ELT, –4.94V to –5.5V 10ELT;
TA = –40°C to 85°C)
–40°C
0°C
Min
Max
150
0.5
VCC
VEE +
2.2
200
–890
–880
–1500
–1475
–1.30
–1.26
–1170
–1165
–1950
–1810
–1.38
–1.38
–840
–880
–1480
–1475
–1.27
–1.26
VCC
0.5
VEE +
2.2
200
–1130
–1165
–1950
–1810
–1.35
–1.38
–810
–880
–1480
–1475
–1.25
–1.26
VCC
25°C
Min
Typ
Max
150
0.5
85°C
Min
Max
150
Symbol
IIH
IIL
VCMR
VPP
VIH
VIL
VBB
Characteristic
Input HIGH Current
Input LOW Current
Common Mode Range
Minimum Peak-to-Peak
Input
1
Input HIGH Voltage 10ELT
100ELT
Input LOW Voltage 10ELT
100ELT
Reference Output
10ELT
100ELT
Min
Max
150
Unit
µA
µA
Condition
0.5
VEE +
2.2
200
–1230
–1165
–1950
–1810
–1.43
–1.38
VEE +
2.2
200
–1060
–1165
–1950
–1810
–1.31
–1.38
VCC
V
mV
–720
–880
–1445
–1475
–1.19
–1.26
V
V
V
1. 200mV input guarantees full logic swing at the output.
AC CHARACTERISTICS
(VCC = 4.5V to 5.5V; VEE = –4.2V to –5.5V 100ELT, –4.94V to –5.5V 10ELT; TA = –40°C to 85°C)
–40°C
Symbol
tPLH
tPHL
Characteristic
Propagation Delay
Propagation Delay
Min
1.7
2.6
Max
3.6
4.1
Min
1.7
2.6
0°C
Max
3.6
4.1
Min
1.7
2.6
25°C
Typ
Max
3.6
4.1
85°C
Min
1.7
2.6
Max
3.6
4.1
Unit
ns
ns
Condition
CL = 20pF
CL = 20pF
MOTOROLA
3–2
ECLinPS and ECLinPS Lite
DL140 — Rev 3
MC10ELT25 MC100ELT25
OUTLINE DIMENSIONS
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751–05
ISSUE P
–A–
B
M
8
5
X 45
_
J
1
4
4X
–B–
M
_
G
F
NOTES:
1. DIMENSIONS A AND B ARE DATUMS AND T IS A
DATUM SURFACE.
2. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
3. DIMENSIONS ARE IN MILLIMETER.
4. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
5. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
6. DIMENSION D DOES NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE D DIMENSION AT MAXIMUM MATERIAL
CONDITION.
DIM
A
B
C
D
F
G
J
K
M
P
R
MILLIMETERS
MIN
MAX
4.80
5.00
3.80
4.00
1.35
1.75
0.35
0.49
0.40
1.25
1.27 BSC
0.18
0.25
0.10
0.25
0
_
7
_
5.80
6.20
0.25
0.50
P
0.25 (0.010)
M
–T–
8X
C
SEATING
PLANE
D
0.25 (0.010)
M
K
T B
S
A
S
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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”
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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
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are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
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51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
◊
ECLinPS and ECLinPS Lite
DL140 — Rev 3
3–3
*MC10ELT25/D*
MC10ELT25/D
MOTOROLA
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