74FCT521TSO IDT, Integrated Device Technology Inc, 74FCT521TSO Datasheet - Page 4

• Manufacturer Part Number: 74FCT521TSO
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Identity Comparatorr

Specifications of 74FCT521TSO

• Logic Family: FCT
• Technology: CMOS
• Number Of Bits: 8
• High Level Output Current: -15mA
• Low Level Output Current: 48mA
• Output Function: A=B
• Package Type: SOIC
• Mounting: Surface Mount
• Pin Count: 20
• Polarity: Inverting
• Abs. Propagation Delay Time: 11ns
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

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