Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF HTML

74FCT244ATQBGB Datasheet(PDF) 4 Page - Integrated Device Technology

Part No. 74FCT244ATQBGB
Description  FAST CMOS OCTAL BUFFER/LIN DRIVER
Download  6 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
Logo 

74FCT244ATQBGB Datasheet(HTML) 4 Page - Integrated Device Technology

   
Zoom Inzoom in Zoom Outzoom out
 4 / 6 page
background image
MILITARYANDINDUSTRIALTEMPERATURERANGES
4
IDT54/74FCT244T/AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
Symbol
Parameter
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
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 = VCC
0.15
0.25
mA/
Current(4)
Outputs Open
VIN = GND
MHz
OEA
= OEB = GND
One Input Toggling
50% Duty Cycle
IC
Total Power Supply Current(6)
VCC = Max.
VIN = VCC
1.5
3.5
mA
Outputs Open
VIN = GND
fi = 10MHz
50% Duty Cycle
VIN = 3.4V
1.8
4.5
OEA
= OEB = GND
VIN = GND
One Bit Toggling
VCC = Max.
VIN = VCC
—3
6(5)
Outputs Open
VIN = GND
fi = 2.5MHz
50% Duty Cycle
VIN = 3.4V
5
14(5)
OEA = OEB = GND
VIN = GND
Eight Bits Toggling
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 = Output Frequency
Ni = Number of Outputs at fi
All currents are in milliamps and all frequencies are in megahertz.
POWER SUPPLY CHARACTERISTICS
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
54FCT244T
54/74FCT244AT
54/74FCT244CT
Mil.
Ind.
Mil.
Ind.
Mil.
Symbol
Parameter
Condition(1)
Min.(2)
Max.
Min.(2)
Max.
Min.(2) Max.
Min.(2)
Max.
Min.(2) Max. Unit
tPLH
PropagationDelay
CL = 50pF
1.5
7
1.5
4.8
1.5
5.1
1.5
4.1
1.5
4.6
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
1.5
6.5
ns
tPZL
tPHZ
OutputDisableTime
1.5
7.5
1.5
5.6
1.5
5.9
1.5
5.2
1.5
5.7
ns
tPLZ
SWITCHING CHARACTERISTICS OVER OPERATING RANGE


Html Pages

1  2  3  4  5  6 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn