74ABT2953 查看數據表（PDF） - Philips Electronics
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74ABT2953 Datasheet PDF : 6 Pages
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Philips Semiconductors
Octal registered transceiver, inverting (3-State)
Product specification
74ABT2953
TEST CIRCUIT AND WAVEFORMS
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
1995 Sep 06
6
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