Commercial Version (Continued)
DIP and PCC ECL-to-TTL AC Electrical Characteristics
VEE = −4.2V to −5.7V, VTTL = +4.5V to +5.5V, CL = 50 pF
T
C = 0°C
T
C = 25°C
T
C = 85°C
Symbol
fMAX
Parameter
Toggle Frequency
Units
Conditions
Min
Max
Min
Max
Min
Max
75
75
75
MHz
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
En, En to Tn
(Transparent)
LE to Tn
1.70
4.90
1.70
5.10
1.80
5.80
ns
ns
ns
ns
ns
Figures 2, 4
2.30
3.30
2.30
4.10
3.30
4.10
2.00
2.00
4.60
5.50
4.90
7.90
7.90
7.50
6.00
4.00
2.40
3.50
2.10
4.10
3.30
4.30
1.90
2.00
4.70
5.70
4.70
7.80
7.50
7.80
5.70
3.70
2.60
4.00
2.00
4.20
3.70
5.30
1.70
1.90
4.90
6.70
4.30
7.80
7.90
9.40
5.20
3.70
Figures 2, 4
Figures 2, 5
Figures 2, 5
Figures 2, 6
OE to Tn
(Enable Time)
OE to Tn
(Disable Time)
DIR to Tn
(Disable Time)
tS
tH
En, En to LE
En, En to LE
0.50
1.00
0.50
1.00
0.50
1.00
ns
ns
Figures 2, 4
Figures 2, 4
Industrial Version
TTL-to-ECL DC Electrical Characteristics
VEE = −4.2V to −5.7V, GND = 0V, TC = −40°C to +85°C, VTTL = +4.5V to +5.5V (Note 11)
Symbol
Parameter
Min
Typ
−955
−1705
Max
Units
Conditions
VIN = VIH(Max) or VIL(Min)
VOH
Output HIGH Voltage
−1085
−1830
−870
mV
mV
VOL
Output LOW Voltage
Cutoff Voltage
−1575
Loading with 50Ω to −2V
OE and LE Low, DIR High
−2000
−1900
mV
V
IN= VIH(Max) or VIL(Min)
,
Loading with 50Ω to −2V
VOHC
Output HIGH Voltage
Corner Point HIGH
Output LOW Voltage
Corner Point LOW
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Breakdown Test
−1095
mV
mV
V
IN = VIH(Min) or VIL(Max)
VOLC
Loading with 50Ω to −2V
−1565
VIH
VIL
IIH
2.0
0
5.0
0.8
5.0
0.5
V
V
Over VTTL, VEE, TC Range
Over VTTL, VEE, TC Range
µA
mA
µA
V
V
V
IN = +2.7V
IN = +5.5V
IN = +0.5V
IIL
Input LOW Current
Input Clamp
−700
−1.2
−99
VFCD
V
IIN = −18 mA
Diode Voltage
IEE
VEE Supply Current
−40
mA
LE Low, OE and DIR High
Inputs Open
Note 11: The specified limits represent the “worst case” value for the parameter. Since these values normally occur at the temperature extremes, additional
noise immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. Conditions for testing shown in the tables are cho-
sen to guarantee operation under “worst case” conditions.
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