IDT74FCT521CTSOG8 IDT, Integrated Device Technology Inc, IDT74FCT521CTSOG8 Datasheet - Page 4
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IDT74FCT521CTSOG8
Manufacturer Part Number
IDT74FCT521CTSOG8
Description
IC COMPARATOR IDENTITY 8B 20SOIC
Manufacturer
IDT, Integrated Device Technology Inc
Series
74FCTr
Type
Identity Comparatorr
Datasheet
1.IDT74FCT521ATQG8.pdf
(6 pages)
Specifications of IDT74FCT521CTSOG8
Number Of Bits
8
Delay Time - Propagation
1.5ns
Current - Supply
0.1µA
Voltage - Supply
5V
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
74FCT521CTSOG8
POWER SUPPLY CHARACTERISTICS
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
3. Per TTL driven input; (V
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of ΔI
6. I
All currents are in milliamps and all frequencies are in megahertz.
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
IDT74FCT521AT/CT
FAST CMOS 8-BIT IDENTITY COMPARATOR
Symbol
t
t
t
t
PLH
PHL
PLH
PHL
I
I
ΔI
D
N
I
f
f
N
Symbol
C
C
CC
CCD
CP
i
H
T
i
= Output Frequency
ΔI
CC
I
= I
= I
= Number of Outputs at f
CCD
= Number of TTL Inputs at D
I
= Duty Cycle for TTL Inputs High
= Quiescent Current
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
C
CC
QUIESCENT
= Dynamic Current caused by an Input Transition Pair (HLH or LHL)
CC
= Power Supply Current for a TTL High Input (V
+ ΔI
Propagation Delay
Ax or Bx to O
Propagation Delay
I
A
CC
=
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply
Current
Total Power Supply Current
+ I
D
B
Parameter
H
to O
INPUTS
N
T
+ I
A
(4)
CC
=
IN
+ I
CCD
B
A
= 3.4V). All other inputs at V
DYNAMIC
= 5.0V, +25°C ambient.
i
Parameter
=
(f
B
CP
H
/2+ f
i
N
i
)
(6)
CC
formula. These limits are guaranteed but not tested.
IN
CC
= 3.4V)
V
V
V
Outputs Open
One Input Toggling
50% Duty Cycle
V
Outputs Open
fi = 10MHz
One Bit Toggling
50% Duty Cycle
or GND.
CC
IN
CC
CC
= 3.4V
= Max.
= Max.
= Max.
(3)
Condition
R
C
Test Conditions
L
L
= 500Ω
= 50pF
4
(1)
V
V
V
V
V
V
(1)
IN
IN
IN
IN
IN
IN
= V
= V
= GND
= GND
= 3.4V
= GND
Min.
CC
CC
1.5
1.5
74FCT521AT
(2)
Max.
7.2
6
INDUSTRIAL TEMPERATURE RANGE
Min.
—
—
—
—
Min.
Typ.
1.5
1.5
0.15
0.5
1.5
1.8
74FCT521CT
(2)
(2)
Max.
0.25
3.5
4.5
2
Max.
4.5
4.1
MHz
Unit
mA/
mA
mA
Unit
ns
ns