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參數(shù)資料
| 型號(hào)： | IDT74FCT244SO8 |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | FCT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | SOIC-20 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 77K |
| 代理商： | IDT74FCT244SO8 |
MILITARYANDCOMMERCIAL TEMPERATURERANGES
4
IDT54/74FCT244/A/C
FASTCMOSOCTALBUFFER/LINEDRIVER
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
ΔICC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC +
ΔICC DHNT + ICCD (fCP/2 + fiNi)
ICC = Quiescent Current
ΔICC = 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
ΔICC
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
OEA = OEB = GND
One Input Toggling
50% Duty Cycle
IC
Total Power Supply Current(6)
VCC = Max.
VIN
≥ VHC
—
1.7
4
mA
Outputs Open
VIN
≤ VLC
fI = 10MHz
(FCT)
50% Duty Cycle
VIN = 3.4V
—
2
5
OEA = OEB = GND
VIN = GND
One Bit Toggling
VCC = Max.
VIN
≥ VHC
—
3.2
6.5(5)
Outputs Open
VIN
≤ VLC
fI = 2.5MHz
(FCT)
50% Duty Cycle
VIN = 3.4V
—
5.2
14.5(5)
OEA = OEB = GND
VIN = GND
Eight Bits Toggling
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
54FCT244
54/74FCT244A
74FCT244C
Mil.
Com'l.
Mil.
Com'l.
Symbol
Parameter
Condition
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Unit
tPLH
PropagationDelay
CL = 50pF
1.5
7
1.5
4.8
1.5
5.1
1.5
4.1
ns
tPHL
Dx to Ox
RL = 500
Ω
tPZH
OutputEnableTime
1.5
8.5
1.5
6.2
1.5
6.5
1.5
5.8
ns
tPZL
tPHZ
OutputDisableTime
1.5
7.5
1.5
5.6
1.5
5.9
1.5
5.2
ns
tPLZ
SWITCHING CHARACTERISTICS OVER OPERATING RANGE(1,2)
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| IDT74FCT244TK | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Integrated Device Technology Inc 功能描述: |
| IDT74FCT244TP | 制造商:Integrated Device Technology Inc 功能描述: |
| IDT74FCT244TPY | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| IDT74FCT244TQ | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Integrated Device Technology Inc 功能描述: |
| IDT74FCT244TSO | 制造商:Integrated Device Technology Inc 功能描述: 制造商:Integrated Device Technology Inc 功能描述:Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP |
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