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PDF 74ALS240ADB Data sheet ( Hoja de datos )
| Número de pieza | 74ALS240ADB | |
| Descripción | Octal inverter buffer 3-State | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
74ALS240A/74ALS240A–1
Octal inverter buffer (3–State)
Product specification
IC05 Data Handbook
1991 Feb 08
Philips
Semiconductors
1 page  
Philips Semiconductors
Octal inverter buffer (3-State)
Product specification
74ALS240A/
74ALS240A-1
AC WAVEFORMS
For all waveforms, VM = 1.3V.
Ian, Ibn VM
tPHL
VM
tPLH
Yn VM VM
SF00328
Waveform 1. Propagation Delay for Non-Inverting Output
OEn
Yn
VM
tPZH
VM
tPHZ
VM
VOH –0.3V
0V
SC00077
Waveform 2. 3-State Output Enable Time to High Level
and Output Disable Time from High Level
OEn
VM
VM
tPZL
tPLZ
Yn VM
3.5V
VOL +0.3V
SC00078
Waveform 3. 3-State Output Enable Time to Low Level
and Output Disable Time from Low Level
TEST CIRCUIT AND WAVEFORMS
PULSE
GENERATOR
VIN
VCC
VOUT
D.U.T.
RL
7.0V
90%
NEGATIVE
PULSE
tw
VM
10%
tTHL (tff)
VM
10%
tTLH (tr )
90%
AMP (V)
0.3V
RT CL RL
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST SWITCH
tPLZ, tPZL closed
All other open
DEFINITIONS:
RL = Load resistor;
see AC electrical characteristics for value.
CL = Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
POSITIVE
PULSE
10%
tTLH (tr )
90%
VM
tw
tTHL (tf )
90%
VM
AMP (V)
10%
0.3V
Input Pulse Definition
INPUT PULSE REQUIREMENTS
Family
Amplitude VM Rep.Rate tw tTLH
74ALS 3.5V 1.3V 1MHz 500ns 2.0ns
tTHL
2.0ns
SC00072
1991 Feb 08
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet 74ALS240ADB.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| 74ALS240AD | Octal inverter buffer 3-State | NXP Semiconductors |
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