74ABT16541 データシートの表示（PDF） - Philips Electronics
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74ABT16541 Datasheet PDF : 10 Pages
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Philips Semiconductors
16-bit buffer/line driver (3-State)
Product specification
74ABT16541
74ABTH16541
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
nAx INPUT
nYx OUTPUT
VM
tPHL
VM
VIN
VM
tPLH
VM
SA00037
Waveform 1. Input (An) to Output (Yn) Propagation Delays
TEST CIRCUIT AND WAVEFORMS
nOEx INPUT
VM
VM
tPZL
tPLZ
3.5V
nYx OUTPUT
nYx OUTPUT
VM
tPZH
VM
tPHZ
VOL + 0.3V
VOL
VOH
VOH – 0.3V
0V
SA00071
Waveform 2. 3-State Output Enable and Disable Times
VCC
VIN
VOUT
RL
PULSE
GENERATOR
D.U.T.
RT
CL
RL
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST SWITCH
tPLZ
tPZL
All other
closed
closed
open
7.0V
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
VM
10%
tW
VM
10%
tTHL (tF)
tTLH (tR)
90%
VM
90%
VM
tW
VM = 1.5V
Input Pulse Definition
90%
AMP (V)
0V
tTLH (tR)
tTHL (tF)
AMP (V)
10%
0V
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
FAMILY
74ABT
INPUT PULSE REQUIREMENTS
Amplitude Rep. Rate tW
tR
tF
3.0V
1MHz 500ns 2.5ns 2.5ns
SA00012
1998 Feb 25
6
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