MFG:FDS Package Cooled:SMD-20 D/C:09+
MFG: FDS
Package Cooled: SMD-20
D/C: 09+
Description: The 74VHCT244A is an advanced high speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with sub-micron si...
The 74VHCT244A is an advanced high speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. G output enable governs four BUS BUFFERs.
This device is designed to be used with 3 state memory address drivers, etc. Power down protection is provided on all inputs and outputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V.
All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
|
Symbol |
Parameter |
Value |
Unit |
|
VCC |
Supply Voltage |
-0.5to + 7.0 |
V |
|
VI |
DC Input Voltage |
-0.5to + 7.0 |
V |
|
VO |
DC Output Voltage (see note 1) |
-0.5to + 7.0 |
V |
|
VO |
DC Output Voltage (see note 2) |
-0.5toVCC+0.5 |
V |
|
IIK |
DC Input Diode Current |
- 20 |
mA |
|
IOK |
DC Output Diode Current |
± 20 |
mA |
|
IO |
DC Output Current |
± 25 |
mA |
|
ICC or IGND |
DC VCC or Ground Current |
± 50 |
mA |
|
Tstg |
Storage Temperature |
-65 to+150 |
°C |
|
TL |
Lead Temperature (10 sec) |
300 |
°C |
AbsoluteMaximumRatingsarethose values beyond whichdamage to the device may occur. Functional operation under these condition isnot implied.
1)Output in OFFState
2) High or Low State
HIGHSPEED: tPD = 3.9 ns (TYP.) atVCC= 5V
LOWPOWERDISSIPATION:
ICC =4 mA (MAX.) at TA =25 oC
COMPATIBLEWITH TTL OUTPUTS:
VIH =2V(MIN),VIL = 0.8V(MAX)
POWERDOWN PROTECTIONON INPUTS& OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 8 mA(MIN)
BALANCEDPROPAGATIONDELAYS:
tPLH tPHL
OPERATINGVOLTAGERANGE:
VCC (OPR)= 4.5Vto 5.5V
PINANDFUNCTION COMPATIBLEWITH 74 SERIES244
IMPROVEDLATCH-UP IMMUNITY
LOWNOISEVOLP = 0.9V(Max.)
74VHCT244A
PDF/DataSheet Download
IC BUS BUFF TRI-ST OCTAL 20TSSOP
IC BUFF DVR TRI-ST OCTAL 20SOP
IC BUFFER/LDRIVER OCTAL 20SOP
IC BUFF DVR TRI-ST OCTAL 20SOIC
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IC BUS BUFF TRI-ST OCTAL 20SOICW
IC BUFF DVR TRI-ST OCTAL 20TSSOP
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