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74LVC125A Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. 74LVC125A
Description  Quad buffer/line driver with 5-volt tolerant inputs/outputs 3-State
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVC125A Datasheet(HTML) 6 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LVC125A
Quad buffer/line driver with 5-volt
tolerant inputs/outputs (3-state)
1998 Apr 28
6
AC WAVEFORMS
VM = 1.5 V at VCC w 2.7 V;
VM = 0.5 S VCC at VCC < 2.7 V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VX = VOL + 0.3 V at VCC ≥ 2.7 V
VX = VOL + 0.1 V at VCC > 2.7 V
VY = VOH – 0.3 V at VCC ≥ 2.7 V
VY = VOH – 0.1 V at VCC < 2.7 V
SV00459
VM
nA INPUT
nY OUTPUT
VM
tPLH
t PHL
GND
Vl
V OL
V OH
Figure 1. Input (nA) to output (nY) propagation delays.
SV00458
outputs
disabled
outputs
enabled
outputs
enabled
tPHZ
tPZH
tPZL
tPLZ
VX
VY
VM
VM
nOE Input
VI
GND
VCC
VOL
VOH
GND
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
OUTPUT
LOW-to-OFF
OFF-to-LOW
VM
Figure 2. 3-state enable and disable times.
TEST CIRCUIT
PULSE
GENERATOR
RT
VIN
D.U.T.
VOUT
CL
VCC
RL=500 Ω
SWITCH POSITION
TEST
SWITCH
tPLH/tPHL
Open
tPLZ/tPZL
2
<VCC
tPHZ/tPZH
GND
Test Circuit for 3-State Outputs
Open
GND
S1
2
<VCC
DEFINITIONS
VCC
t 2.7V
2.7 – 3.6V
VIN
VCC
2.7V
RL = Load resistor
CL = Load capacitance includes jig and probe capacitance
RT = Termination resistance should be equal to ZOUT
of pulse generators.
SW00047
RL=500 Ω
Figure 3. Load circuitry for switching times.


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