Absolute Maximum Ratings (Note 4)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
TRI-STATE Output
Current Applied to TTL
Output in LOW State (Max)
ESD (Note 5)
−0.5V to +5.5V
Twice the Rated IOL (mA)
≥2000V
Storage Temperature (TSTG
)
−65˚C to +150˚C
Recommended Operating
Conditions
Case Temperature (TC)
Military
Maximum Junction Temperature (Tj)
Ceramic
+175˚C
VEE Pin Potential to
Ground Pin
−7.0V to +0.5V
–55˚C to +125˚C
−5.7V to −4.2V
+4.5V to +5.5V
VTTL Pin Potential to
Ground Pin
ECL Supply Voltage (VEE
)
−0.5V to +6.0V
VEE to +0.5V
TTL Supply Voltage (VTTL
)
ECL Input Voltage (DC)
ECL Output Current
Note 4: Absolute maximum ratings are those values beyond which the de-
vice may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
(DC Output HIGH)
−50 mA
−0.5V to +6.0V
Note 5: ESD testing conforms to MIL-STD-883, Method 3015.
TTL Input Voltage (Note 6)
TTL Input Current (Note 6)
Voltage Applied to Output in HIGH State
Note 6: Either voltage limit or current limit is sufficient to protect inputs.
−30 mA to +5.0 mA
Military Version
TTL-to-ECL DC Electrical Characteristics
=
=
=
=
=
VEE −4.2V to −5.7V, VCC VCCA GND, TC −55˚C to +125˚C, VTTL +4.5V to +5.5V
Symbol
Parameter
Min
Max
Units
TC
Conditions
Loading with
Notes
VOH
Output HIGH Voltage
−1025
−870
mV
0˚C to
(Notes 7, 8,
9)
50Ω to −2.0V
+125˚C
−55˚C
=
−1085
−1830
−870
mV
mV
VIN VIH (Max)
VOL
Output LOW Voltage
Cutoff Voltage
−1620
0˚C to
or VIL (Min)
+125˚C
−55˚C
−1830
−1555
−1950
mV
mV
0˚C to
+125˚C
−55˚C
OE or DIR Low
−1850
mV
mV
VOHC
Output HIGH Voltage
Output LOW Voltage
−1035
−1085
0˚C to
(Notes 7, 8,
9)
+125˚C
−55˚C
=
mV
mV
VIN VIH (Min)
Loading with
VOLC
−1610
−1555
0˚C to
or VIL (Max)
50Ω0 to −2.0V
+125˚C
−55˚C
mV
V
VIH
VIL
IIH
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Breakdown Test
2.0
−55˚C to
+125˚C
−55˚C to
+125˚C
−55˚C to
125˚C
Over VTTL, VEE, TC Range
Over VTTL, VEE, TC Range
(Notes 7, 8,
9, 10)
0.8
70
V
(Notes 7, 8,
9, 10)
=
µA
mA
mA
V
VIN +2.7V
(Notes 7, 8,
9)
=
VIN +5.5V
1.0
−55˚C to
+125˚C
−55˚C to
+125˚C
−55˚C to
+125˚ C
−55˚C to
=
IIL
Input LOW Current
−1.0
−1.2
VIN +0.5V
(Notes 7, 8,
9)
=
VFCD
Input Clamp
IIN −18 mA
(Notes 7, 8,
9)
Diode Voltage
VEE Supply Current
IEE
OE and DIR High
Inputs Open
(Notes 7, 8,
9)
=
VEE −4.2V to −5.7V
−206
−70
mA
+125˚C
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