N74F827DB(2004) Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
N74F827DB Datasheet PDF : 11 Pages
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Philips Semiconductors
10-bit buffer/line driver, non-inverting (3-State)
Product data
74F827
AC WAVEFORMS
For all waveforms, VM = 1.5 V
Dn
VM
VM
tPLH
tPHL
Qn
VM
VM
SF00125
Waveform 1. Propagation delay for non-inverting output
OEn
Qn, Qn
VM
tPZH
VM
tPHZ
VM
VOH -0.3V
0V
SF00263
Waveform 2. 3-State Output Enable time to HIGH level
and Output Disable time from HIGH level
OEn
Qn, Qn
VM
tPZL
VM
tPLZ
VM
VOL +0.3V
SF00264
Waveform 3. 3-State Output Enable time to LOW level
and Output Disable time from LOW level
VCC
VIN
PULSE
GENERATOR
VOUT
RL
D.U.T.
RT
CL RL
Test Circuit for Open Collector Outputs
SWITCH POSITION
TEST
tPLZ
tPZL
All other
SWITCH
closed
closed
open
7.0 V
NEGATIVE
PULSE
90%
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
3.0 V 1.5 V 1 MHz 500 ns 2.5 ns
tTHL
2.5 ns
SF00128
2004 Jan 21
7
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