
6.22
3
IDT54/74FCT841AT/BT/CT/DT
FAST CMOS BUS INTERFACE LATCHES
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: T
A
 = 0
°
C to +70
°
C, V
CC
 = 5.0V 
±
 5%; Military: T
A
 = –55
°
C to +125
°
C, V
CC
= 5.0V 
±
 10%
Symbol
Parameter
V
IH
Input HIGH Level
Guaranteed Logic HIGH Level
Test Conditions
(1)
Min.
2.0
Typ.
(2)
—
Max.
—
Unit
V
V
IL
I
I H
I
I L
Input LOW Level
Input HIGH Current
(4)
Input LOW Current
(4)
Guaranteed Logic LOW Level
V
CC
 = Max.
—
—
—
—
—
—
0.8
±
1
±
1
±
1
±
1
±
1
–1.2
—
1
V
μ
A
V
I
 = 2.7V
V
I
 = 0.5V
I
OZH
I
OZL
I
I 
High Impedance Output Current
(3-State Output pins)
(4)
Input HIGH Current
(4)
V
CC
 = Max.
V
O 
= 2.7V
V
O
 = 0.5V
—
—
—
—
—
μ
A
V
CC
 = Max., V
I 
= V
CC 
(Max.)
μ
A
V
mV
mA
V
IK
V
H
I
CC
Clamp Diode Voltage
Input Hysteresis
Quiescent Power Supply Current
V
CC
 = Min., I
IN  
= –18mA
—
—
—
–0.7
200
0.01
                                         —
V
CC
 = Max., V
IN
 = GND or V
CC
2571 lnk 05
Symbol
V
OH
Parameter
Test Conditions
(1)
Min.
2.4
Typ.
(2)
3.3
Max.
—
Unit
V
Output HIGH Voltage
V
CC
 = Min.
V
IN
 = V
IH 
or V
IL
I
OH
 = –6mA MIL.
I
OH
 = –8mA COM'L.  
I
OH
 = –12mA MIL.
I
OH
 = –15mA COM'L.
I
OL 
= 32mA MIL.
I
OL 
= 48mA COM'L.
2.0
3.0
—
V
V
OL
Output LOW Voltage
V
CC
 = Min.
V
IN
 = V
IH 
or V
IL
V
CC
 = Max., V
O
 = GND
(3)
V
CC
 = 0V, V
IN  
or V
O  
≤
 4.5V
—
0.3
0.5
V
I
OS
Short Circuit Current
Input/Output Power Off Leakage
(5)
–60
–120
–225
±
1
mA
μ
A
I
OFF
—
—
OUTPUT DRIVE CHARACTERISTICS FOR FCT841T
2571 lnk 06
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, +25
°
C ambient.
3. Not more than one output should be shorted at one time.  Duration of the short circuit test should not exceed one second.
4. The test limit for this parameter is 
±
5
μ
A at T
A
 = –55
°
C.
5. This parameter is guaranteed but not tested.