74ABT16827A 데이터 시트보기 (PDF) - Philips Electronics
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74ABT16827A Datasheet PDF : 10 Pages
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Philips Semiconductors
20-bit buffer/line driver, non-inverting (3-State)
Product specification
74ABT16827A
74ABTH16827A
AC WAVEFORMS
nAx INPUT
VM
tPLH
nYx
VM
OUTPUT
VM
tPHL
VM
3.0V or VCC
whichever
is less
0V
VOH
VOL
SA00016
Waveform 1. Input (nAx) to Output (nYx) Propagation Delays
TEST CIRCUIT AND WAVEFORM
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
D.U.T.
GENERATOR
RT
CL
RL
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST SWITCH
tPLZ
closed
tPZL
closed
All other 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
INPUT PULSE REQUIREMENTS
Amplitude Rep. Rate tW
tR
tF
74ABT/H16
3.0V
1MHz 500ns 2.5ns 2.5ns
SA00018
1998 Feb 27
6
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