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PDF 74F1244 Data sheet ( Hoja de datos )
| Número de pieza | 74F1244 | |
| Descripción | Octal buffer 3-State | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
74F1244
Octal buffer (3-State)
Product specification
IC15 Data Handbook
Philips
Semiconductors
1989 Apr 04
1 page  
Philips Semiconductors
Octal buffer (3-State)
Product specification
74F1244
AC WAVEFORMS
For all waveforms, VM = 1.5V.
Ian, Ibn
Yn
VM
tPLH
VM
tPHL
VM
VM
SF00231
Waveform 1. For Non-Inverting Outputs
OEn
Yn
VM
tPZL
VM
tPLZ
VM
3.5V
VOL+0.3V
SF00234
Waveform 3. 3-State Output enable Time to Low Level and
Output Disable Time from Low Level
OEn
VM
VM
tPZH
tPHZ
VOH–0.3V
Yn VM
0V
SF00233
Waveform 2. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
TEST CIRCUIT AND WAVEFORMS
VCC
PULSE
GENERATOR
VIN
VOUT
D.U.T.
RL
RT CL RL
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST
tPLZ
tPZL
All other
SWITCH
closed
closed
open
7.0V
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
tw
VM
10%
tTHL (tf )
VM
10%
tTLH (tr )
tTLH (tr )
90%
VM
tw
tTHL (tf )
90%
VM
Input Pulse Definition
90%
AMP (V)
0V
AMP (V)
10%
0V
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.
INPUT PULSE REQUIREMENTS
family
amplitude VM rep. rate
tw tTLH
74F 3.0V 1.5V 1MHz 500ns 2.5ns
tTHL
2.5ns
SF00777
1989 Apr 04
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 74F1244.PDF ] | |
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