100329 查看數據表（PDF） - Fairchild Semiconductor
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100329 Datasheet PDF : 11 Pages
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ECL-to-TTL DC Electrical Characteristics
VEE = −4.2V to −5.7V, VCC = VCCA = GND, TC = 0°C to +85°C, CL = 50 pF, VTTL = +4.5V to +5.5V (Note 8)
Symbol
Parameter
Min
Typ
Max
Units
Conditions
VOH
Output HIGH Voltage
VOL
Output LOW Voltage
VIH
Input HIGH Voltage
2.7
3.1
2.4
2.9
0.3
−1165
0.5
−870
V
IOH = −3 mA, VTTL = 4.75V
V
IOH = −3 mA, VTTL = 4.50V
V
IOL = 24 mA, VTTL = 4.50V
mV Guaranteed HIGH Signal
for All Inputs
VIL
Input LOW Voltage
−1830
−1475
mV Guaranteed LOW Signal
for All Inputs
IIH
IIL
IOZHT
Input HIGH Current
Input LOW Current
3-STATE Current
Output HIGH
0.50
350
µA
VIN = VIH (Max)
µA
VIN = VIL (Min)
70
µA
VOUT = +2.7V
IOZLT
3-STATE Current
Output LOW
−700
µA
VOUT = +0.5V
IOS
Output Short-Circuit
Current
−225
−100
mA
VOUT = 0.0V, VTTL = +5.5V
ITTL
VTTL Supply Current
74
mA TTL Outputs LOW
49
mA TTL Outputs HIGH
67
mA TTL Outputs in 3-STATE
Note 8: 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.
DIP TTL-to-ECL AC Electrical Characteristics
VEE = −4.2V to −5.7V, VTTL = +4.5V to +5.5V, VCC = VCCA = GND
Symbol
Parameter
TC = 0°C
Min
Max
TC = 25°C
Min
Max
fMAX
tPLH
tPHL
tPZH
Max Toggle Frequency
CP to En
OE to En
(Cutoff to HIGH)
350
350
1.7
3.6
1.7
3.7
1.3
4.2
1.5
4.4
tPHZ
OE to En
(HIGH to Cutoff)
1.5
4.5
1.6
4.5
tPHZ
DIR to En
(HIGH to Cutoff)
1.6
4.3
1.6
4.3
tSET
tHOLD
tPW(H)
tTLH
tTHL
Tn to CP
Tn to CP
Pulse Width CP
Transition Time
20% to 80%, 80% to 20%
1.1
1.1
1.7
1.7
2.1
2.1
0.6
1.6
0.6
1.6
TC = 85°C
Min
Max
350
1.9
3.9
Units
Conditions
MHz
ns Figures 1, 2
1.7
4.8
ns Figures 1, 2
1.6
4.6
ns Figures 1, 2
1.7
4.5
ns Figures 1, 2
1.1
ns Figures 1, 2
1.9
ns Figures 1, 2
2.1
ns Figures 1, 2
0.6
1.6
ns Figures 1, 2
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