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參數(shù)資料
| 型號(hào)： | 54FCT521CLB |
| 廠(chǎng)商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類(lèi)： | 比較器 |
| 英文描述： | COMPARATOR, QCC20 |
| 封裝： | LCC-20 |
| 文件頁(yè)數(shù)： | 4/6頁(yè) |
| 文件大小： | 90K |
| 代理商： | 54FCT521CLB |
MILITARYANDCOMMERCIAL TEMPERATURERANGES
4
IDT54/74FCT521/A/B/C
FAST CMOS 8-BIT IDENTITY COMPARATOR
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 VCC = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V). All other inputs at VCC or GND.
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
ICC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC +
ICC DHNT + ICCD (fCP/2 + fiNi)
ICC = Quiescent Current
ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for register devices (zero for non-register devices)
fi = Input Frequency
Ni = Number of Inputs at fi
All currents are in milliamps and all frequencies are in megahertz.
POWER SUPPLY CHARACTERISTICS
VLC = 0.2V; VHC = VCC - 0.2V
Symbol
Parameter
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
ICC
Quiescent Power Supply Current
VCC = Max.
—
0.2
1.5
mA
VIN
≥ VHC; VIN ≤ VLC
ICC
Quiescent Power Supply Current
VCC = Max.
—
0.5
2
mA
TTL Inputs HIGH
VIN = 3.4V(3)
ICCD
Dynamic Power Supply
VCC = Max.
VIN
≥ VHC
—
0.15
0.25
mA/
Current(4)
Outputs Open
VIN
≤ VLC
MHz
One Input Toggling
50% Duty Cycle
IC
Total Power Supply Current(5,6)
VCC = Max.
VIN
≥ VHC
—
1.7
4
mA
Outputs Open
VIN
≤ VLC (FCT)
fI = 10MHz
VIN = 3.4V
—
2
5
One Bit Toggling
VIN = GND
50% Duty Cycle
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - COMMERCIAL
74FCT521A
74FCT521B
74FCT521C
Symbol
Parameter
Condition(1)
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Unit
tPLH
PropagationDelay
CL = 50pF
1.5
7.2
1.5
5.5
1.5
4.5
ns
tPHL
Ax or Bx to OA = B
RL = 500
tPLH
PropagationDelay
1.5
6
1.5
4.6
1.5
4.1
ns
tPHL
IA = B to OA = B
SWITCHING CHARACTERISTICS OVER OPERATING RANGE - MILITARY
54FCT521
54FCT521A
54FCT521B
Symbol
Parameter
Condition(1)
Min.(2)
Max.
Min.(2)
Max.
Min.(2)
Max.
Unit
tPLH
PropagationDelay
CL = 50pF
1.5
15
1.5
9.5
1.5
7.3
ns
tPHL
Ax or Bx to OA = B
RL = 500
tPLH
PropagationDelay
1.5
9
1.5
7.8
1.5
6
ns
tPHL
IA = B to OA = B
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